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ABSTRACT We present a literature review of 57 publications describing this pathology, published from the year 2012. In all these studies patients were reported to depict a slow-growing, motionless mass, which is painless at most times. All cases were managed by total excision, except for one report where adjuvant radiotherapy was applied. Among the several therapeutic strategies, the total tumor resection, preserving the tumor pseudocapsule intact, appears to be a consensus in treating the disease efficiently. Furthermore, fine-needle aspiration biopsy, including the assessment of genetic alterations, has proved to be a valuable tool in the diagnosis of challenging cases. Our literature survey also suggests that an incisional biopsy before the surgery may lead to the pseudocapsule disruption, thus considerably increasing the chances of adenoma recurrence, enabling its malignization. At present, genetics studies indicate that the molecular aberrations involved in the adenoma are similar to those represented in the salivary gland tumor pathogenesis. Further, in the recurrent cases, the pathology becomes difficult to treat and multiple surgeries may be required, occasionally, leading to radical surgery treatment.
RESUMO Uma revisão narrativa da literatura de 57 publicações que descrevem esta patologia, publicada a partir de 2012. Os pacientes têm uma massa de crescimento lento e imóvel, que na maioria das vezes é indolor. Todos os casos foram tratados por excisão total, com exceção de um relatório de radioterapia adjuvante. Entre as estratégias terapêuticas encontradas, a ressecção total do tumor, preservando a pseudocápsula tumoral intacta, parece ser um consenso. Alternativamente, a biópsia por aspiração de agulha fina incluindo a avaliação de alterações genéticas pode representar uma ferramenta valiosa nos casos diagnósticos desafiadores. Uma biópsia incisional antes da cirurgia não é recomendada, pois a ruptura da pseudocápsula aumenta consideravelmente a recorrência do adenoma, permitindo até mesmo sua malignização. Com relação à genética, estudos atuais indicam que as aberrações moleculares envolvidas no adenoma são semelhantes às da patogênese do tumor da glândula salivar. Para casos de recorrência, a patologia torna-se difícil de tratar e múltiplas cirurgias podem ser necessárias, às vezes levando a um tratamento cirúrgico radical.
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La evaluación de la enfermedad hepática parenquimal suele comprender exámenes de laboratorio y de imagen; sin embargo, en algunos casos se puede requerir una biopsia hepática. La biopsia del hígado guiada por endosonografía se ha reportado como un procedimiento con un rendimiento diagnóstico entre 90 a 100% con un perfil bajo de eventos adversos; sin embargo, no existen estudios que reporten la experiencia y el tipo de técnica empleada en nuestro país. Objetivo: Determinar la efectividad y la seguridad de la biopsia hepática guiada por endosonografía en enfermedad hepática parenquimal. Materiales y métodos: Estudio prospectivo realizado en un hospital público de nivel de atención III-2 en Lima, Perú, el cual incluyó pacientes mayores de 18 años con sospecha de alguna enfermedad hepática parenquimal que fueron sometidos a una biopsia guiada por endosonografía desde marzo del 2018 a octubre del 2022. Resultados: El rendimiento diagnóstico de las biopsias fue de 77,02%, con una longitud media de la muestra obtenida de 13,98 mm (desviación estándar 7,34) y una mediana de 8 espacios porta completos (0-50). Cabe mencionar que solo un 31.25% de procedimientos se realizaron con aguja fina de biopsia (FNB), encontrándose una diferencia significativa entre el tipo de aguja y el rendimiento diagnóstico (p=0,01). El diagnóstico histopatológico más frecuente el de hepatitis autoinmune. Y existieron un 2,08% de complicaciones post procedimiento. Conclusiones: Las biopsias guiadas por endosonografía para el diagnóstico de enfermedad parenquimal hepática tienen una efectividad cercana al 80% en nuestro medio y con un perfil bajo de eventos adversos; sin embargo, se necesitan estudios prospectivos y con un mayor número de pacientes.
Parenchymal liver diseases are commonly evaluated by laboratory and imaging studies. However, in some cases a liver biopsy is required. Endoscopic ultrasonography-guided liver biopsy (EUS-LB) has been reported as a procedure with high diagnostic yield (90-100%) with low adverse event profile, but there are not studies which report about the experience and technique in our country. Objective: Determinate the effectiveness and the safety of endosonography-guided liver biopsy in liver parenchymal disease. Materials and methods: A prospective study was conducted at a III-2 level of care Public Hospital in Lima, Peru. It included patients over 18 years of age with suspicion of parenchymal liver disease who underwent EUS-LB for study hepatic parenchymal disease since March of 2018 to October of 2022. Results: The diagnostic yield of the biopsies was 77.02%, with a mean length of the sample of 13.98mm (standard deviation 7.34) and a median of 8 complete portal spaces (0-50). Only 31.25% of the procedures were performed with a fine needle biopsy (FNB), finding a significant difference between the type of needle and the diagnostic yield (p=0.01). The most common histopathological diagnosis was autoinmune hepatitis. There were 2.08% of post-procedure complications. Conclusions: EUS-LB for the diagnosis of liver parenchymal disease had a diagnostic yield close to 80% in our region with a low profile of adverse events. However, more prospectives studies with a larger number of patients are required.
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ABSTRACT Objective To establish the diagnostic performance of fine-needle aspiration in detecting benign and malignant neoplasm in comparison with post-thyroidectomy histopathological findings among patients who received a thyroidectomy. Methods Retrospective observational data collected between 2011-2021 were included from patients who received partial or total thyroidectomy. The Bethesda system was used to classify neoplasms from fine-needle aspiration procedures as benign or malignant. Sample characteristics, diagnostic accuracy, sensitivity, specificity, and predictive values were evaluated. Results Patients (n=360) who underwent thyroidectomy were analyzed, of whom 142 (39.4%) and 218 (60.6%) had benign and malignant neoplasms, respectively. Using the Bethesda system, 23 (6.4%) were classified as unsatisfactory result (BI), 83 (23.1%) as benign (BII), 50 (13.9%) as atypia of undetermined significance (BIII), 23 (6.4%) as suspected follicular or Hürthle cell neoplasia (BIV), 102 (28.3%) as suspected malignancy (BV) and 79 (21.9%) as malignant (BVI). The fine-needle aspiration diagnostic accuracy for carcinomas was 92%, while the sensitivity and specificity were 94.4% and 86.9%, respectively. The negative and positive predictive values were 87.9% and 93.9%, respectively. Conclusion Fine-needle aspiration has high diagnostic accuracy, sensitivity and specificity, and is a reliable test for distinguishing between benign and malignant thyroid pathologies.
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Objective:To explore the clinical value of ultrasound-guided fine-needle aspiration biopsy in the diagnosis of thyroid cancer and assessment of cervical lymph node metastasis.Methods:The clinical data of 90 patients with thyroid cancer who received treatment in Zhoushan Hospital from October 2018 to April 2021 were retrospectively analyzed. All patients underwent a two-dimensional ultrasound examination and ultrasound-guided fine-needle aspiration biopsy before surgery. Taking surgical and pathological diagnosis as the gold standard, the efficiency of two-dimensional ultrasound examination versus ultrasound-guided fine-needle aspiration biopsy in the diagnosis of thyroid cancer and cervical lymph node metastasis and in the identification of benign and maligant lymph nodes were investigated. Multivariate Logistic regression analysis was performed to analyze the correlation between different ultrasound signs and the detection rate of lymph nodes. Results:Pathological results showed that among the 90 patients, 73 patients had thyroid cancer, and 17 patients had benign lesions. Ultrasound-guided fine-needle aspiration biopsy results showed that 70 patients had thyroid cancer, and 20 patients had benign lesions, including 4 cases of missed diagnosis and 2 cases of misdiagnosis. The diagnostic sensitivity, specificity, accuracy rate, and Kappa value were 94.52%, 88.24%, 93.33%, and 0.79, respectively. These were highly consistent with the surgical and pathological diagnosis (Kappa value > 0.75). Two-dimensional ultrasound revealed 69 patients with thyroid cancer and 21 patients with benign lesions, including 7 cases of missed diagnosis and 4 cases of misdiagnosis. The diagnostic sensitivity, specificity, accuracy rate, and Kappa value were 90.41%, 76.47%, 87.78%, and 0.63, respectively. Pathological results revealed that cervical lymph node metastasis occurred in 12 patients, and it did not occur in 78 patients. The diagnostic sensitivity, specificity, accuracy rate, and Kappa value of ultrasound-guided fine-needle aspiration biopsy were 83.33%, 97.50%, 95.65%, and 0.81 respectively. These were highly consistent with surgical and pathological results (Kappa value > 0.75). The diagnostic sensitivity, specificity, accuracy rate, and Kappa value of two-dimensional ultrasound examination were 75.00%, 94.87%, 92.22%, and 0.67, respectively. A total of 156 lymph nodes were detected by ultrasound-guided fine-needle aspiration biopsy, including 103 benign lymph nodes and 53 malignant lymph nodes, with a diagnostic accuracy rate of 94.17% and 96.22%, respectively. A total of 173 lymph nodes were detected by two-dimensional ultrasound, including 111 benign lymph nodes and 62 malignant lymph nodes, with a diagnostic accuracy rate of 91.89% and 91.93%, respectively. There were no significant differences in the diagnostic accuracy of benign and malignant lymph nodes between the two examination methods ( χ2 = 0.42, 0.92, both P > 0.05). Multivariate logistic regression analysis showed that hyperechoic masses, cystic lesions, and internal calcification were significantly correlated with the detection rate of lymph nodes diagnosed by two-dimensional ultrasound and ultrasound-guided fine-needle aspiration biopsy ( OR = 6.64, 5.32, 4.12, 7.07, 5.60, 5.06, all P < 0.05). Conclusion:Ultrasound-guided fine-needle aspiration biopsy has high diagnostic efficiency for thyroid cancer and cervical lymph node metastasis. Ultrasound signs of hyperechoic mass, cystic lesions, and internal calcification are significantly correlated with the detection rate of lymph nodes.
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Objective:To evaluate the value of B-Raf proto-oncogene, serine/threonine kinase (BRAF) V600E mutation detection in the differentiating malignant from benign with Bethesda system for reporting thyroid cytopathology (BSRTC) categories Ⅰ and Ⅲ nodules. Methods:From January 2019 to December 2020, a total of 264 nodules from 263 patients (79 males, 184 females; median age 46 years) were retrospectively enrolled and all patients underwent BRAF V600E mutation detection, fine-needle aspiration cytology (FNAC) and thyroid nodulectomy in the Affiliated Drum Tower Hospital of Nanjing University Medical School. Thirteen nodules of 12 patients had repeat aspirate samples and 51 nodules were examined with multiple genes assay in formalin fixed paraffin embedded tissues. Taken the postoperative histopathological results as the gold standard, the diagnostic efficiency of BRAF V600E mutation was analyzed by comparing the results of multiple genes assay and BRAF V600E mutation detection of repeated puncture samples. Results:Of 264 nodules, 230 were malignant (papillary thyroid cancer (PTC)) and 34 were benign, with BSRTC categories Ⅰ (nondiagnostic) and Ⅲ (follicular lesion) nodules of 58 and 206. The sensitivities of BRAF V600E mutation detection in BSRTC categories Ⅰ and Ⅲ nodules were 77.1%(37/48) and 78.0%(142/182), the specificities were 9/10 and 91.7%(22/24), the positive predictive values were 97.4%(37/38) and 98.6%(142/144), the negative predictive values were 45.0%(9/20) and 35.5%(22/62), and the accuracy rates were 79.3%(46/58) and 79.6%(164/206). The diagnostic concordance of BRAF V600E mutation detection was 90.2%(46/51) in the preoperative and postoperative samples of 51 nodules with preoperative BRAF V600E wild type but postoperative pathology confirmed as PTC and was 11/13 in repeat puncture samples. Conclusion:BRAF V600E mutation detection is an effective diagnostic method for BSRTC categories Ⅰ and Ⅲ nodules.
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SUMMARY OBJECTIVE: To evaluate the efficacy of a training program in ultrasound-guided fine needle puncture using a cost-effective model. METHODS: We evaluated the training of 20 resident radiology physicians, based on a theoretical course and a practical simulation part with models that focused on the puncture technique of thyroid nodules. The total time to perform the procedure, the number of punctures on the model surface, and the application of a questionnaire were used to assess the performance and confidence of the resident physicians in performing the procedure. RESULTS: The training model used was easy to reproduce, inexpensive, versatile, and capable of simulating the echotexture of thyroid tissue. There was a significant reduction in the total time needed to perform the procedure with a mean of 173.7 s±91.28 s from R1 and 112.8 s±17.66 s from R2 before the course vs. 19.2 s±112.8 s and 14.3 s±9.36 s, respectively, after the course (p<0.0001); as well as the number of superficial punctures, with a mean of 2.2 punctures±0.92 from R1 and 1.5 punctures±0.32 from R2 before the course vs 1.1 punctures±0.71 and 1.0 puncture±0.0, respectively, after the course (p<0.0001). There was also a subjective improvement in the performance and confidence in performing this procedure. CONCLUSIONS: An inexpensive and easy-to-reproduce gelatin-based model enabled adequate training of resident physicians and proved capable of improving their skills and confidence in simulating the procedure, even with a short period of training.
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Objective:To systematically evaluate the diagnostic value of fine-needle aspiration washout fluid for measuring thyroglobulin (FNA-Tg) and fine-needle aspiration cytology (FNAC) in cervical lymph node metastasis of papillary thyroid carcinoma.Methods:Chinese Journal Full-Text Database, Wanfang Database, VIP Chinese Science and Technology Journal Database and other databases from January 2016 to December 2020 were retrieved. And then diagnostic trials from the databases regarding the comparison of FNA-Tg and FNAC in the diagnosis of papillary thyroid carcinoma with neck lymph node metastasis based on the histopathological diagnosis as the gold standard were included. The literatures were screened out according to the diagnostic test inclusion criteria recommended by the Cochrane Collaboration Screening and Diagnostic Test Methods Group; and then the quality of the included literatures was evaluated and feature information was extracted. Review Manager 5.0 and MetaDiSc software were used to conduct Meta analysis, and a summary receiver operating characteristic (SROC) curve of FNAC and FNA-Tg in the diagnosis of lymph node metastasis was drawn to calculate the area under the curve and to judge the diagnostic efficacy.Results:A total of 19 articles and 2 792 cervical lymph nodes were finally included. The sensitivity of FNAC and FNA-Tg in the diagnosis of cervical lymph node metastasis in papillary thyroid carcinoma was 0.80 (95% CI 0.78-0.81) and 0.92 (95% CI 0.91-0.93), respectively; the specificity was 0.93 (95% CI 0.92-0.95) and 0.91(95% CI 0.89-0.93); the diagnostic odds ratio was 51.55 (95% CI 38.61-68.81) and 110.03 (95% CI 82.18-147.32), respectively; the areas under the SROC curve was 0.900 and 0.968, respectively. Conclusions:The accuracy of FNA-Tg in the diagnosis of cervical lymph node metastasis of papillary thyroid carcinoma is higher than that of FNAC. FNA-Tg can be used as an important diagnosis supplement to FNAC and it can be widely used in clinical practice.
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Fetus in fetu (FIF) is a rare entity in which a malformed vertebrate fetus is incorporated within its twin. This entity should be differentiated from a teratoma, which has more malignant potential. We describe a neonate with a heterogeneous calcified suprarenal mass. The aspiration cytology revealed a heterogeneous cell population with spindle cells and small round blue cells. Operative and histopathologic examination showed features consistent with a fetus in fetu. This case report describes a rare entity and discusses its clinical presentation, cytological features on fine-needle aspiration, and the difficulties posed in its differentiation from a teratoma.
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Humans , Female , Infant, Newborn , Teratoma/complications , Adrenal Glands , Biopsy, Fine-Needle , Fetus/abnormalities , Congenital Abnormalities/pathologyABSTRACT
RESUMEN Fundamento : el carcinoma diferenciado de tiroides representa la neoplasia maligna más frecuente en endocrinología, su presentación clínica y diagnóstico se han modificado gracias a la disponibilidad de herramientas tales como el ultrasonido tiroideo y la biopsia por aspiración con aguja fina. Objetivo : caracterizar de forma clínica ultrasonográfica e histológica el cáncer de tiroides. Métodos : se realizó un estudio transversal y descriptivo en pacientes atendidos en el Hospital General Docente Abel Santamaría Cuadrado de la provincia Pinar del Río desde el 1ro enero de 2016 hasta el 31 diciembre de 2019. El universo de estudio quedó constituido por 119 pacientes y la muestra por 91 seleccionados a través de un muestreo probabilístico aleatorio simple. Los datos se obtuvieron de las historias clínicas. Para el análisis de la información se utilizó el sistema estadístico Statistical Package for Social Sciences, se confeccionó una base de datos en Excel, se aplicó análisis univariado de carácter descriptivo, se utilizaron estadígrafos descriptivos como la distribución de frecuencias absoluta y relativa. Se utilizó la prueba no paramétrica Chi cuadrado para datos cualitativos con un nivel de significación del 95 % (p<0,05). Resultados : en la serie predominó el sexo femenino y grupo etareo de 50-59 años de edad, los afectados de piel blanca, sobrepesos y obesos. El bocio, las microcalcificaciones y los bordes mal definidos fueron los factores de riesgo asociados a la malignidad con significación estadística. El carcinoma papilar tiroideo resultó el más común. Conclusiones : el diagnóstico del carcinoma tiroideo es complejo y su conducta tiene un enfoque multidisciplinario, existen elementos clínicos-epidemiológicos, imagenológicos e histológicos para diagnosticar el mismo.
ABSTRACT Background : differentiated thyroid carcinoma represents the most frequent malignant neoplasm in endocrinology; its clinical presentation and diagnosis have been modified thanks to the availability of tools such as thyroid ultrasound and fine needle aspiration biopsy. Objective : to characterize the thyroid cancer in a clinically ultrasound-graphical and histological way. Methods : a cross-sectional and descriptive study was carried out in patients treated in the Oncology and Endocrinology services of the Abel Santamaría Cuadrado Hospital in the Pinar del Río province in the period from January 2016 to December 2019. The universe of the study consisted of 119 patients and the sample of 91 selected through a simple random probability sampling. Data were obtained from medical records. For the information analysis, the Statistical Package for Social Sciences was used, an Excel database was created, a descriptive univariate analysis was applied, and descriptive statistics such as the absolute and relative frequency distribution were used. The non-parametric Chi square test was used for qualitative data with a significance level of 95% (p <0.05). Results : in the series predominated the female sex and etareo-group of 50 t 59 year of age, those with white skin, overweight and obese predominated in the series. The goiter, micro-calcifications, and poorly defined borders were the risk factors most associated with malignancy. Papillary thyroid carcinoma was the most common. Conclusions : the diagnosis of the thyroid carcinoma is complex and its conduct has a multidisciplinary approach, there are clinical-epidemiological, imaging and histological elements to diagnose thyroid cancer.
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RESUMEN Introducción: aunque el microcarcinoma papilar de tiroides ha sufrido un aumento en la incidencia en las últimas décadas, todavía es una controversia la extensión de la resección de la glándula y el tratamiento oncológico. Objetivo: determinar la incidencia del microcarcinoma papilar de tiroides en enfermos operados de cáncer de tiroides en el Hospital "León Cuervo Rubio" de Pinar del Río, en el período entre enero de 2018 a marzo de 2020. Métodos: se realizó un estudio descriptivo y transversal de 22 enfermos operados de microcarcinoma de tiroides, a los cuales se les practicó una tiroidectomía total. Se tomaron los datos de las historias clínicas, informes operatorios y las biopsias. Se utilizaron los métodos de observación y analítico. Las variables analizadas fueron: tamaño del tumor, resultados de la BAAF, diagnóstico definitivo, variedad histológica, enfermedades de tiroides asociadas y extensión de la enfermedad Resultados: los 22 enfermos operados de microcarcinoma de tiroides representan el 42,30 % del total de caso operados por cáncer. Predomina el sexo femenino y edad promedio 49,9 años. El 31,81 % de los enfermos con biopsia corresponden al grupo Bethesda I, II Y III; sin embargo, eran portadores de microcarcinomas. Un 18 % de los enfermos eran portadores de dos variedades histológicas de carcinoma. Conclusiones: el microcarcinoma papilar de tiroides aumenta su incidencia sobre todo en enfermos mayores de 45 años, con extensión más allá de la glándula lo cual agrava el pronóstico del enfermo, y requiere de la atención médica multidisciplinaria para determinar factores de riesgo pronóstico. De esta forma mejorar la conducta a seguir y la calidad de vida del paciente.
ABSTRACT Introduction: although papillary thyroid microcarcinoma has suffered an increase in incidence in the last decades, the extension of gland resection and oncological treatment is still a controversy. Objective: to determine the incidence of papillary thyroid microcarcinoma in patients who have undergone surgery for thyroid cancer at Leon Cuervo Rubio Hospital in Pinar del Río, 2018-2020. Methods: a descriptive and cross-sectional study of 22 patients operated for thyroid microcarcinoma was carried out, who underwent a total thyroidectomy, collecting data from the clinical histories, surgery reports and biopsies. Observation and analysis approaches were used. Variables to be analyzed: size of the tumor, BAAF results, definitive diagnosis, histological variety, associated thyroid diseases and extension of the disease Results: the 22 patients operated on thyroid microcarcinoma represented 42.30% of the total number of cases operated for cancer reasons. Female sex predominated and average age is 49.9 years; 31.81% of the patients with biopsy correspond to the Bethesda I, II and III group, however they were carriers of microcarcinoma; 18% of the patients were carriers of two histological varieties of carcinoma. Conclusions: papillary thyroid microcarcinoma continues the increase of its incidence, especially in patients over 45 years old, with extension beyond the gland, which aggravates the prognosis of the patient suffering from it and requires multidisciplinary medical care to determine prognostic risk factors and to improve the behavior to be followed and the quality of life of the patient.
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Objective:To explore the influencing factors of satisfaction with thyroid nodule fine needle biopsy (FNA).Methods:The ultrasonic images of 88 patients with thyroid nodules (95 nodules) in Dongguan Binhai Bay Central Hospital from September 2016 to January 2019 were analyzed retrospectively. According to Bethesda cytological classification standard, Bethesda class Ⅰ cytological specimens were defined as unsatisfactory, and Bethesda class Ⅱ-Ⅵ cytological specimens were defined as satisfactory. The thyroid nodule location, composition, internal echo, morphology, aspect ratio, calcification, blood supply mode and American College of Radiology Thyroid Imaging Reporting and Data System(ACR TI-RADS) classification on the satisfaction rate of thyroid nodule FNA samples were evaluated, and then the meaningful influencing factors were analyzed by logistic regression.Results:The overall satisfaction of the sample in this study was 84.2% (80/95). The results of univariate analysis showed that the location, aspect ratio and ACR TI-RADS classification of thyroid nodules were the related factors affecting the satisfaction of FNA specimens of thyroid nodules, with statistically significant difference ( P<0.05). Logistic regression analysis showed that the aspect ratio of thyroid nodules was an independent factor affecting the satisfaction of FNA specimens of thyroid nodules ( OR=13.5, P=0.02). Conclusions:The main factor affecting the satisfaction rate of FNA specimens of thyroid nodules may lie in the characteristics of the aspect ratio of the nodules themselves. Optimizing the puncture route may help to reduce the dissatisfaction rate of FNA specimens of thyroid nodules.
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Introducción: La citología de nódulos tiroideos es una técnica que, evita procedimientos quirúrgicos innecesarios por lo que se lo ha determinado como primera línea dentro del algoritmo de diagnóstico, el objetivo del estudio fue determinar la sensibilidad y la especificidad de la citología y biopsia por congelación frente al estudio histopatológico en el diagnóstico de nódulos tiroideos en pacientes atendidos en Solca desde el año 2009 -2017. Métodos: Es un estudio de tipo observacional, retrospectivo y de correlación diagnóstica; los datos fueron obtenidos de las historias clínicas de pacientes intervenidos quirúrgicamente por nódulos tiroideos con biopsia por congelación, a quienes se les realizó previamente un estudio citológico en el Departamento de patología de SOLCA de la ciudad de Cuenca, Ecuador. El cálculo del tamaño de la muestra fue de 324 casos. Resultados:324 casos fueron incluidos. El 8.3% correspondió a hombres y el 91.7% a mujeres. La media de la edad fue 51.8 años; la gran mayoría provenían de la provincia Azuay con el 64.8%. En los estudios citológicos el 34.6% (112 casos)corresponden a lesiones inflamatorias benignas; el 11.1% [36 casos]a patologías malignas y 14.2% (46 casos)fueron insatisfactorios. En la biopsia por congelación el mayor porcentaje estuvo concentrado en enfermedades benignas con un 62.6% y 35.5% a lesiones malignas. Hubo 6 casos con el 1.9% en donde fue diferido el criterio diagnóstico. En el histopatológico definitivo el 60.2% (195 casos)fueron patologías benignas y el 39.8% (129 casos)fueron lesiones malignas. La sensibilidad de la PAAF frente a histopatológico es alta con un 91.79%, pero la especificidad es baja con un 51.94%. La sensibilidad y la especificidad de la biopsia por congelación frente a histopatológico es alta con un 98.97% y 90.70% respectivamente lo que le confiere una metodología óptima. Conclusiones: La PAAF de tiroides demuestra ser una metodología útil en el diagnóstico de nódulos, siempre y cuando sea realizada y observada por personal capacitado. La biopsia por congelación constituye una técnica con alta sensibilidad y especificidad que nos permite discriminar lesiones benignas de las malignas. Palabras claves: Nódulo tiroideo, Biopsia con Aguja, Servicio de Patología en Hospital, Oncología Médica, Agencias Voluntarias de Salud, Biología Celular, Biopsia con Aguja Fina
Introduction:Cytology of thyroid nodules is a technique that avoids unnecessary surgical procedures and has therefore been determined as the first line within the diagnostic algorithm.General Objective:To determine the sensitivity and specificity of cytology and freezing biopsy versus histopathological study in the diagnosis of thyroid nodules in patients treated in Solca since 2009 -2017. Methods:This is an observational, retrospective and diagnostic correlation study; the data were obtained from the clinical histories of patients surgically treated by thyroid nodules with freeze biopsy, who underwent a cytological study in the Department of pathology of the city of Cuenca, Ecuador. The calculation of the sample size was 324 cases. Results:8.3% corresponded to men and 91.7% to women. The mean age was 51.8 years; The vast majority came from the province of Azuay with 64.8%. In cytological studies, 34.6% [112 cases]correspond to benign inflammatory lesions; 11.1% [36 cases]to malignant pathologies and 14.2% [46 cases]were unsatisfactory. In the freeze biopsy the greater percentage was concentrated in benign diseases with 62.6% and 35.5% to malignant lesions. There were 6 cases with 1.9% where the diagnostic criterion was deferred. In the definitive histopathological, 60.2% [195 cases]were benign pathologies and 39.8% [129 cases]were malignant lesions. The sensitivity of FNAB to histopathological is high with 91.79%, but the specificity is low with 51.94%. The sensitivity and specificity of freezing versus histopathological biopsy is high with 98.97% and 90.70% respectively, which gives it an optimal methodology. Conclusions: Thyroid PAAF proves to be a useful methodology in the diagnosis of nodules, as long as it is performed and observed by trained personnel. Freezing biopsy is a technique with high sensitivity and specificity that allows us to discriminate benign from malignant lesions. Key words:Thyroid Nodule; Biopsy, Needle;Pathology Department, Hospital; Medical Oncology; Voluntary Health Agencies; Cell Biology; Biopsy, Fine-Needle
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Humans , Pathology Department, Hospital , Biopsy, Needle , Thyroid Nodule , Voluntary Health Agencies , Cell Biology , Biopsy, Fine-Needle , Medical OncologyABSTRACT
SUMMARY INTRODUCTION Liver biopsies such as tru-cut (sharp needle) and fine-needle aspiration cytology (FNAC) are the most commonly preferred techniques to detect the grade and stage of certain liver diseases. In this study, we aimed to compare the efficiency of USG-guided tru-cut biopsy and fine-needle aspiration cytology in an experimental alcoholic liver disease model. METHODS Thirty-six female Wistar albino rats, 4-6 months old, and weighing from 190 to 250 g, were used in this study. The animals were randomly divided into six equal groups: G1 (control), G2 (tru-cut control), G3 (FNAC control), G4 (Alcoholic liver disease model), G5 (Alcoholic liver disease model + FNAC), and G6 (Alcoholic liver disease model + tru-cut biopsy). After a histopathological evaluation by light microscopy, the sensitivity, specificity, positive and negative predictive values of FNAC and tru-cut biopsy for the diagnosis of liver lesions were calculated. RESULTS No pathology was detected in G1 except for mild congestion. On the other hand, hepatocyte damage, periportal inflammation, congestion, and fatty changes were detected in all liver tissues of the alcoholic liver disease groups. The sensitivity of hepatocyte damage, inflammation, congestion, and fatty change parameters for FNAC were 33.3%, 80%, 0%, and 0%, respectively, while the sensitivity of the same variables for tru-cut were 66.7%, 40%, 100%, and 20%, respectively. DISCUSSION Both techniques were superior in some aspects. FNAC can be an attractive alternative to tru-cutbiopsy and applied in routine practice in the diagnosis of non-tumoral liver diseases.
RESUMO INTRODUÇÃO Biópsias hepáticas tais como por agulha tru-cut e por citologia aspirativa por agulha fina (CAAF) são as técnicas frequentemente preferidas para detectar o grau e o estágio de certas doenças hepáticas. Neste estudo, nosso objetivo foi comparar a eficiência da biopsia com agulha tru-cut guiada por ultrassom e a citologia aspirativa por agulha fina em um modelo experimental de doença hepática alcoólica. MÉTODOS Trinta e seis ratos Wistar albinos fêmeas, de 4 a 6 meses de idade e pesando entre 190 e 250g, foram utilizados neste estudo. Os animais foram divididos aleatoriamente em seis grupos: G1 (controle), G2 (controle tru-cut), G3 (CAAF), G4 (modelo de doença hepática alcoólica), G5 (modelo de doença hepática alcoólica + CAAF) e G6 (modelo de doença hepática alcoólica + biópsia tru-cut). Após uma avaliação histopatológica por microscopia de luz, foram calculados a sensibilidade, especificidade e os valores preditivos positivos e negativos da CAAF e biópsia por tru-cut para o diagnóstico de lesões hepáticas. RESULTADOS Nenhuma patologia foi detectada no G1, apenas leve congestão. Por outro lado, detectamos danos nos hepatócitos, inflamação periportal, congestão e alterações nos ácidos graxos nos tecidos hepáticos de todos os grupos de doença hepática alcoólica. As sensibilidades encontradas para os danos nos hepatócitos, inflamação, congestão e alterações nos parâmetros de ácidos graxos para a CAAF foram 33,3%, 80%, 0% e 0%, respectivamente, enquanto que as sensibilidades das mesmas variáveis para o método tru-cut foram 66,7%, 40%, 100% e 20%, respectivamente. DISCUSSÃO Ambas as técnicas foram superiores em alguns aspectos. A CAAF pode ser uma alternativa atraente à biópsia por tru-cut e aplicada como prática de rotina no diagnóstico de doenças hepáticas não tumorais.
Subject(s)
Humans , Female , Liver Diseases, Alcoholic , Rats, Wistar , Biopsy, Fine-Needle , Disease Models, AnimalABSTRACT
Background: Thyroid incidentalomas detected by 18F-Fludeoxyglucose (FDG) PET/CT are defined as an incidental and unexpected thyroid focus present in a patient studied for a non-thyroid disease. Aim: To assess the frequency of malignancy of nodular thyroid incidentalomas, and their association with 18F-FDG avidity (standard uptake value (SUV) max). Material and Methods: Whole body PET/CT performed from December 2008 to December 2017 were reviewed selecting those that showed nodular thyroid foci. Glands with diffuse increased uptake were excluded. Thyroid ultrasonography and fine-needle aspiration cytology (FNAC) performed after PET/CT were reviewed. Bethesda score and SUVmax were correlated. Results: Of 5,100 whole body 18F-FDG PET/CT, 119 showed a thyroid nodular uptake (2.3%). Forty eight percent of these patients were studied with FNAC or surgery, 50% of which (29/58) were confirmed as malignant. Benign nodules showed significantly lower 18F-FDG uptake (n = 20, SUVmax: 3.5 ± 1.7) than Bethesda V-VI (n=24, SUVmax: 8.2 ± 5.2) and thyroid metastases (n=5, SUVmax: 6.3 ± 2.1). The best cut-off value to distinguish between benign and malignant nodules was a SUVmax of 5.0, with a sensitivity of 76% (95% confidence intervals (CI) 56-90%), a specificity of 85% (95% CI 62 - 97%), and positive likelihood ratio of 5 (95% CI 1.8 - 14.6). The size of the thyroid nodule was not predictive of malignancy. Conclusions: Half of nodular thyroid incidentalomas detected by 18F-FDG PETC/CT are malignant. A nodule with a SUVmax ≥ 5,0 is highly suggestive of malignancy, regardless of its size.
Subject(s)
Humans , Thyroid Neoplasms/diagnostic imaging , Thyroid Nodule , Retrospective Studies , Radiopharmaceuticals , Fluorodeoxyglucose F18 , Incidental Findings , Positron Emission Tomography Computed TomographyABSTRACT
Objective To explore the application effect of fine needle aspiration cytology and sentinel lymph nodes stain assisted by contrast-enhanced ultrasound in early breast cancer.Methods A patient with early breast cancer enrolled in Beijing Friendship Hospital,Capital Medical University received fine needle aspiration cytology assisted by contrast-enhanced ultrasonography and the sentinel lymph nodes were stained with blue dye before a standard sentinel lymph nodes biopsy traced with indocyanine green.The axillary status accessed by these two methods were compared.Results Three sentinel lymph nodes were found and aspirated assisted by contrast-enhanced ultrasonography.Seven sentinel lymph nodes were obtained in sentinel lymph nodes biopsy surgery.All of these sentinel lymph nodes were negative.The stained sentinel lymph nodes could be recognized and dissected in open lymph nodes biopsy surgery.Conclusions Fine needle aspiration cytology assisted by contrast-enhanced ultrasonography could be a substitute for open sentinel lymph nodes biopsy.More related researches should be carry out to further compare these two methods.
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Objective: To observe the value of rapid on-site evaluation (ROSE) in CT-guided percutaneous lung biopsy of peripheral pulmonary nodules (≤2 cm). Methods: A total of 108 patients with pulmonary nodules who underwent CT-guided percutaneous lung biopsy were retrospectively analyzed. According to the presence or absence of ROSE, they were divided into ROSE group (n=58) and conventional group (n=50). The adequacy of sampling, diagnostic accuracy, complications, secondary biopsy rate and statistical consistency were compared between ROSE and histopathology. Results: The adequacy and diagnostic accuracy in ROSE group were higher than those in conventional group (93.10% [54/58] vs 78.00% [39/50], 89.66% [52/58] vs 74.00% [37/50], both P0.05). The consistency of ROSE and histopathology for benign and malignant lesions was 91.30% (21/23) and 93.33% (28/30), respectively. Conclusion: ROSE can guide puncture sampling without prolonging operation time and increasing complications, so as to ensure the adequacy of sampling, improve diagnostic accuracy and reduce the rate of secondary puncture during biopsy of pulmonary nodules, which has good consistency with histopathology and can make immediate diagnosis.
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Objective: To observe the feasibility of cone-beam breast CT (CBBCT)-guided puncture of different phantoms simulating biopsy of breast tumor. Methods: Under the guidance of CBBCT, the superficial and deep targets (dachshund) of different phantoms (silicone breast, boiled potato, round eggplant, mango) were punctured and biopsied, respectively. The accuracy and cost of different phantoms were calculated. Results: The accuracy of deep and shallow location of the same phantom was not significantly different (all P>0.05). The accuracy of silicone breast, boiled potato, round eggplant and mango was 92.50% (37/40), 81.25% (78/96), 72.92% (70/96) and 61.54% (32/52), respectively. Conclusion: The accuracy of CBBCT-guided puncture of different phantoms simulating biopsy of breast tumor was high. Boiled potato was the most cost-effective phantom.
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Objective: To observe ultrasonic manifestations of foreign body granulomas induced by suture stimulation in patients after thyroid surgery. Methods: Data of 47 papillary thyroid carcinoma patients who underwent total thyroidectomy or partial thyroidectomy were retrospectively analyzed. A total of 86 neck granulomatous nodules were diagnosed as surgical suture foreign body granuloma with ultrasonography, fine needle puncture cytology and clinical observation, and the ultrasonic characteristics and changes of nodules were observed. Results: All 86 suture granuloma nodules located in the margin of the residual thyroid gland or in the soft tissue around the surgical region, presenting as hypoechoic nodules without capsule, with irregular margin and punctate echogenic foci followed by some degree of acoustic shadowing. Color Doppler ultrasound showed that the blood flow signals were scarce in 80 nodules (80/86, 93.02%) and abundant in 6 nodules (6/86, 6.98%). Elastographic score was assessed, 24 nodules (24/86, 27.91%) were grade 2, 24 (24/86, 27.91%) were grade 3 and 38 (38/86, 44.19%) were grade 4. Conclusion: Ultrasonic characteristics of suture granuloma after thyroid surgery include mainly irregular hypoechoic in thyroid residual or surrounding neck soft tissue, with internal spot-like strong echo concentrated in the center of nodules.
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Papillary thyroid carcinoma (PTC) with cervical lymph node metastases depict poor prognosis. Ultrasound (US)-guided fine needle aspiration cytology (US-FNAC) showed certain limitations in diagnosis of PTC with cervical lymph node metastases, while no effective molecular marker for diagnosis of this disease has been found. US-FNAC combined with molecular markers are helpful to detecting cervical lymph nodes metastases of PTC. The relative research progresses were reviewed in this article.
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