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Objective@#To investigate the clinical features, diagnosis and treatment of congenital epulis, to provide a reference for clinical diagnosis and treatment.@*Methods@#Two cases of congenital epulis in the mandible and maxilla of a newborn were reported, and the boundary and size of the tumor were determined by ultrasonography and MRI. The tumor was resected under general anesthesia. The previous literature on congenital epulis was reviewed and analyzed.@*Results@#Patient 1 (male) had a hard mass of approximately 20 mm × 15 mm × 10 mm in the right mandible immediately after birth. MRI was performed, and the mass was removed. In Patient 2 (female), a mass approximately 24 mm × 23 mm × 20 mm in the oral cavity of the anterior maxillary region was shown on ultrasound at 29 gestational weeks, and the mass grew rapidly in the last trimester. The mass was removed after birth. Postoperative pathological examination revealed congenital epulis. The results of the literature review showed that the incidence of congenital epulis is greater in females than in males, and it mainly occurs in the maxillary incisor area. Congenital epulis does not invade bone and does not affect tooth development. When a mass affects a child's breathing or swallowing, it must be surgically removed in a timely manner. Recent studies have shown that there is no evidence of recurrence after surgical resection. The histological origin and etiology of the disease are not clear. Clinically, it is often necessary to distinguish between teratomas and congenital epulis. Regarding the clinical manifestations, teratomas and congenital epulis are similar in appearance, and the main distinguishing point lies in pathological manifestations. Under the microscope, teratomas are observed as mature or immature tissue from various embryonic layers, while congenital epulis involves tightly arranged, homogeneous, polygonal to microspindle-shaped, medium to large cell compositions of nest-like and ribbon-like cells.@*Conclusion@#Congenital epulis is a rare oral tumor in neonates. The diagnosis should be based on the location, age, clinical manifestations, and imaging findings. The final diagnosis depends on pathological examination. When congenital epulis tumors affect children's breathing and eating, they should be surgically removed as soon as possible, and there is almost no recurrence after surgery.
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Introducción: Las lesiones en la mucosa bucal constituyen un grupo heterogéneo de alteraciones, de cuyo diagnóstico temprano depende el pronóstico y el tratamiento. Objetivo: Caracterizar a pacientes con lesiones en la mucosa bucal según variables clínicas, epidemiológicas e histopatológicas. Métodos: Se realizó un estudio descriptivo, longitudinal y prospectivo de 23 pacientes con lesiones en la mucosa bucal pertenecientes a los consultorios médicos de la familia del reparto Vista Alegre, quienes fueron asistidos en la consulta de estomatología del Hospital General Docente Dr. Juan Bruno Zayas Alfonso de Santiago de Cuba desde septiembre del 2021 hasta junio del 2022. Resultados: En la serie predominaron el sexo femenino, el grupo etario de 60 y más años, la estomatitis subprótesis como lesión más frecuente (39,1 %) y los traumatismos crónicos como factores de riesgo (65,2 %); asimismo, en los pacientes remitidos al nivel secundario de atención hubo coincidencia entre los diagnósticos clínico e histopatológico (76,9 % ). Conclusiones: De la valoración clínica, epidemiológica e histopatológica de estas lesiones y de la preparación de los especialistas sobre el tema dependerá el diagnóstico definitivo.
Introduction: Lesions in the oral mucosa constitute a heterogeneous group of disorders which prognosis and treatment depend on the early diagnosis. Objective: To characterize patients with lesions in the oral mucosa according to clinical, epidemiological, histological and pathological variables. Methods: A descriptive, longitudinal and prospective study of 23 patients with lesions in the oral mucosa was carried out. They belonged to the family doctor offices from Vista Alegre neighborhood and were assisted in the Stomatology Service of Dr. Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba from September, 2021 to June, 2022. Results: In the series there was a prevalence of the female sex, the 60 years and over age group, subprosthesis stomatitis as more frequent lesion (39.1%) and chronic traumatisms as risk factors (65.2%); also, in patients referred to the secondary care level there was coincidence between the clinical, histological and pathological diagnoses (76.9%). Conclusions: The final diagnosis will depend on the clinical, epidemiological, histological and pathological valuation of these lesions and on the preparation of the specialists on the topic.
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Objective@#To study the effect of artificial intelligence in the pathological diagnosis of periapical cysts and to explore the application of artificial intelligence in the field of oral pathology.@*Methods@#Pathological images of eighty-seven periapical cysts were selected as subjects to read, and a neural network with a U-net structure was constructed. The 87 HE images and labeled images of periapical cysts were divided into a training set (72 images) and a test set (15 images), which were used in the training model and test model, respectively. Finally, the target level index F1 score, pixel level index Dice coefficient and receiver operating characteristic (ROC) curve were used to evaluate the ability of the U-net model to recognize periapical cyst epithelium.@*Results @# The F1 score of the U-net network model for recognizing periapical cyst epithelium was 0.75, and the Dice index and the areas under the ROC curve were 0.685 and 0.878, respectively.@*Conclusion@#The U-net network model constructed by artificial intelligence has a good segmentation result in identifying periapical cyst epithelium, which can be preliminarily applied in the pathological diagnosis of periapical cysts and is expected to be gradually popularized in clinical practice after further verification with large samples.
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A case of pituicytoma was observed in a Han-Wistar rat from the control group of a 2-year carcinogenicity study. No obvious abnormality were found in clinical observation and necropsy. Hematoxylin and Eosin (HE) staining results showed that nodular hyperplasia in the pars nervosa of the pituitary, which was well demarcated and compressed the adjacent normal tissue. The tumor cells were similar to the glial cells with round or oval nuclei, cytoplasm rich in eosinophilic or vacuole. The tumor cells differentiated well, with no obvious cell pleomorphism and visible mitotic figures. Some tumor cells were arranged in a pseudorosette formation. Immunohistochemical staining (IHC) analysis confirmed positive expression of Glial fibrillary acidic protein (GFAP) and S-100 protein. The tumor was diagnosed as the spontaneous benign pituicytoma combining the HE and IHC staining results.
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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 analyze result of the external quality assessment for laboratories of toxicological pathology diagnosis in organizations in China. Methods A total of 86 organizations that participated in the 2020-2021 external quality assessment in laboratory of toxicological pathology diagnosis (hereinafter referred to as "reference units") were selected as research subjects using convenient sampling method, and the assessment results were analyzed. Results The median of total score was 92, and the 0-100 percentiles were 64-100 in these 86 reference units. Among these reference units, 76 were rated as excellent, 10 as qualified, with the excellent and the qualified rate of 88.4% and 11.6%, respectively. No reference unit was rated as unqualified. The rates of excellence of the reference units in public health institutions, pharmaceutical research institutions, drug safety evaluation centers and testing companies were 95.7%, 84.2%, 85.7% and 86.7%, and the qualified rates were 4.3%, 15.8%, 14.3% and 13.3%, respectively. The distribution of excellence and qualification among the four types of reference units showed no statistical difference (P>0.05). The distribution of sample scores according to the three grades of poor, good, and excellent were 4.9%, 20.7%, and 74.5% in public health institutions, 8.6%, 23.7%, and 67.8% in pharmaceutical research institutions, 12.5%, 25.0%, and 62.5% in drug safety evaluation centers, and 5.4%, 17.5%, and 77.1% in testing companies. The proportion of excellence unit in public health institutions was higher than that in pharmaceutical research institutions (P<0.05). Conclusion The overall toxicological pathology diagnostic capabilities in China are good, and various types of reference units demonstrate comparable technical capabilities. However, there is a need for standardization of diagnostic terminology.
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【Objective】 To investigate the clinical value of transrectal contrast-enhanced ultrasound (CEUS) in the diagnosis of prostate cancer in different total prostate specific antigen (tPSA) intervals. 【Methods】 According to serum tPSA levels, 96 patients meeting the inclusion criteria were divided into 3 groups:4-10 ng/mL, >10-20 ng/mL and >20 ng/mL groups. All patients underwent transrectal CEUS. With pathological results as reference, the diagnostic value of transrectal CEUS in different tPSA intervals was evaluated. 【Results】 Of the 96 cases, 62 were confirmed by pathology as prostate cancer and 34 as benign prostatic hyperplasia (BPH). The main perfusion characteristics of prostate cancer under CEUS were rapid enhancement (64.52%), rapid clearance (70.97%), uneven enhancement (83.87%) and high enhancement (61.29%);the main characteristics of BPH were non-rapid enhancement (70.59%), non-rapid clearance (73.53%), uniform enhancement (76.47%) and non-high enhancement (52.94%). There were significant differences in terms of enhancement speed, clearance speed and enhancement uniformity between prostate cancer and BPH (P<0.05), but no significant difference in the enhancement intensity. The sensitivity of transrectal CEUS in the diagnosis of prostate cancer in low, medium and high tPSA groups were 58.33%, 70.37% and 95.65%, the specificity were 83.33%, 76.92% and 66.67%, and the accuracy were 73.33%, 72.50% and 92.31%, respectively. Transrectal CEUS showed consistency at different serum tPSA levels for the diagnosis of prostate cancer, with statistical significance. Moreover, in the 4.0 ng/mL ≤tPSA<10.0 ng/mL group, the diagnostic specificity was the highest. 【Conclusion】 Transrectal CEUS is helpful in the differential diagnosis of benign and malignant prostatic lesions, especially for patients with different serum tPSA levels.
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OBJECTIVE@#To explore the protocol for diagnosing thyroid nodules based on core needle biopsy (CNB) and study the biomarkers' application in distinguishing indeterminate samples.@*METHODS@#Patients with thyroid nodules treated at Peking University First Hospital from 2015 to 2020 were reviewed. In the study, 598 cases with CNB and matched resected specimens were retrieved. According to "diagnostic categories of thyroid CNB" proposed by the Korean Endocrine Pathology Thyroid Core Needle Biopsy Study Group, the CNB samples were diagnosed as follows: Ⅰ, unsatisfactory; Ⅱ, benign; Ⅲ, indeterminate; Ⅳ, follicular neoplasm; Ⅴ, suspicious for malignancy; and Ⅵ, malignant. The samples of CNB Ⅲ were stained by immunohistochemistry (IHC) using antibodies against CK19, Galectin-3, HBME-1, and CD56, and detected by next-generation sequencing (NGS) using an OncoAim® thyroid cancer multigene assay kit (Singlera Genomics) that detected 26 genes. Taking the resected specimens' classification as the gold standard, the predictive value of CNB for determining the malignancy of thyroid nodules and the biomarkers for distinguishing the samples of CNB Ⅲ was calculated.@*RESULTS@#The study included 598 patients, of which none were CNB Ⅰ, 40 cases were CNB Ⅱ, 40 cases were CNB Ⅲ, 32 cases were CNB Ⅳ, 35 cases were CNB Ⅴ, and 451 cases were CNB Ⅵ. The predictive value of CNB Ⅳ for determining follicular neoplasm was sensitivity (Sen) 100.00% and specificity (Sep) 100.00%, CNB Ⅴ-Ⅵ for determining malignancy was Sen 94.55% and Sep 100.00%, CNB Ⅱ for determining benign lesions was Sen 75.00% and Sep 99.80%. The predictive value of biomarkers for determining malignancy in cases of CNB Ⅲ was Sen 96.30% and Sep 92.31% by NGS, and Sen 81.48% and Sep 92.30% by IHC.@*CONCLUSION@#The Korean "diagnostic categories of thyroid CNB", which considers the histological specificity of CNB samples and the habits of clinicians, have strong operability, high diagnosis rate, and high clinical value. Under this framework, the cases of CNB Ⅵ should be treated with surgical operation, the cases of CNB Ⅴ-Ⅵ are recommended to be treated as malignant neoplasms, and the major cases of CNB Ⅱ could be followed up without worrisome except the one considered malignant by ultrasound. The value of biomarkers in distinguishing the cases of CNB Ⅲ is significant.
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Humans , Thyroid Nodule/surgery , Biopsy, Large-Core Needle/methods , Thyroid Neoplasms/surgery , BiomarkersABSTRACT
The application of artificial neural network algorithm in pathological diagnosis of gastrointestinal malignant tumors has become a research hotspot. In the previous studies, the algorithm research mainly focused on the model development based on convolutional neural networks, while only a few studies used the combination of convolutional neural networks and recurrent neural networks. The research contents included classical histopathological diagnosis and molecular typing of malignant tumors, and the prediction of patient prognosis by utilizing artificial neural networks. This article reviews the research progress on artificial neural network algorithm in the pathological diagnosis and prognosis prediction of digestive tract malignant tumors.
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Humans , Neural Networks, Computer , Algorithms , Prognosis , Gastrointestinal Neoplasms/diagnosisABSTRACT
Purpose To explore the artificial intelligence(AI)-assisted diagnosis system of thyroid cancer based on deep transfer learning and evaluate its clinical application value.Methods The HE sections of 682 cases thyroid disease patients(including benign lesions,papillary carcinoma,follicular carci-noma,medullary carcinoma and undifferentiated carcinoma)in the Pathology Department of the Renmin Hospital of Wuhan Uni-versity were collected,scanned into digital sections,divided into training sets and internal test sets according to the ratio of 8 ∶ 2,and the training sets were labeled at the pixel level by patholo-gists.The thyroid cancer classification model was established u-sing VGG image classification algorithm model.In the process of model training,the parameters of the breast cancer region recog-nition model were taken as the initial values,and the parameters of the thyroid cancer region recognition model were optimized through the transfer learning strategy.Then the test set and 633 intraoperative frozen HE section images of thyroid disease in Jianli County People's Hospital,Jingzhou City,Hubei Province wereused as the external test set to evaluate the performance of the established AI-assisted diagnostic model.Results In the internal test set,without the use of the breast cancer region rec-ognition model transfer learning,the accuracy of the AI-assisted diagnosis model was 0.882,and the area under the Receiver op-erating characteristic(AUC)valuewas0.938;However,inthe use of the Transfer learning model,the accuracy of the AI-assis-ted diagnosis model for was 0.926,and the AUC value was 0.956.In the external test set,the accuracy of the zero learning model was 0.872,the AUC value was 0.915,and the accuracy of the Transfer learning model was 0.905,the AUC value was 0.930.Conclusion The AI-assisted diagnosis method for thy-roid cancer established in this study has good accuracy and gen-eralization.With the continuous development of pathological AI research,transfer learning can help improve the performance and generalization ability of the model,and improve the accura-cy of the diagnostic model.
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Objective:To compare the clinical value of contrast-enhanced ultrasound (CEUS) - and CT-guided percutaneous puncture biopsy in the diagnosis of peripheral lung masses.Methods:The clinical data of 90 patients with peripheral lung masses who underwent puncture biopsy in Tumor Hospital Affiliated to Nantong University from October 2019 to December 2021 were retrospectively analyzed. According to different puncture guidance methods, patients were divided into CEUS-guided percutaneous puncture biopsy group (CEUS group, n=40) and the CT-guided percutaneous puncture biopsy group (CT group, n=50) , and the differences in puncture success rates, complication rates and other factors between the two groups were evaluated. Meanwhile, the correlations between microvascular density (MVD) and CEUS parameters were detected. Results:The puncture success rate in the CEUS group was higher than that in the CT group, but there was no statistically significant difference [97.5% (39/40) vs. 92.0% (46/50) , P=0.337], and the complication rate in the CEUS group was significantly lower than that in the CT group [0 (0/40) vs. 12.0% (6/50) , P=0.032]. Compared with the CT group, the CEUS group has fewer punctures [ (2.0±1.6) times vs. (2.8±1.2) times, t=-2.43, P=0.018], shorter duration [ (7.6±2.5) min vs. (15.3±2.6) min, t=-8.86, P<0.001] and lower cost of surgery [ (1 308.4±545.6) yuan vs. (2 046.4±645.3) yuan, t=-2.01, P=0.046]. The MVD, CEUS peak intensity and enhancement index of lung adenocarcinoma were higher than those of squamous cell carcinoma [ (25.4±4.9) /HP) vs. (16.6±7.3) /HP, t=3.43, P=0.002; (46.9±6.5) db vs. (36.8±5.4) db, t=4.12, P<0.001; 5.2±1.4 vs. 4.1±1.2, t=3.27, P=0.006]. The peak intensity and intensity index of CEUS in lung adenocarcinoma or squamous cell carcinoma were positively correlated with itself MVD (squamous cell carcinoma: r=0.66, P<0.001; r=0.56, P<0.001; adenocarcinoma: r=0.62, P<0.001; r=0.70, P<0.001) . Conclusion:Although CEUS-guided percutaneous puncture biopsy does not achieve a higher puncture success rate in the diagnosis of peripheral lung masses compared to CT, it really decreases the complication rate, and has the advantages of less time, low cost, no radiation and real-time dynamic monitoring, which is worth promoting in clinic. Moreover, there are correlations between CEUS quantitative parameters of adenocarcinoma and squamous cell carcinoma of the lung and MVD, which may be useful for diagnosis.
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Objective To analyze the disease spectrum and clinicopathological characteristics of central nervous system(CNS)diseases diagnosed based on pathological findings in Tibet. Methods We collected the data of all the cases with CNS lesions in Tibet Autonomous Region People's Hospital from January 2013 to December 2020.The clinicopathological features were analyzed via light microscopy,immunohistochemical staining,and special staining. Results A total of 383 CNS cases confirmed by pathological diagnosis were enrolled in this study,with a male-to-female ratio of 188∶195 and an average age of(40.03±17.39)years(0-74 years).Among them,127(33.2%)cases had non-neoplastic diseases,with a male-to-female ratio of 82∶45 and an average age of(31.99±19.29)years;256(66.8%)cases had neoplastic diseases,with a male-to-female ratio of 106∶150 and an average age of(44.01±14.87)years.The main non-neoplastic diseases were nervous system infectious diseases,cerebral vascular diseases,meningocele,cerebral cyst,and brain trauma.Among the infectious diseases,brain abscess,granulomatous inflammation,cysticercosis,and hydatidosis were common.The main neoplastic diseases included meningioma,pituitary adenoma,neuroepithelial tumor,schwannoma,metastatic tumor,and hemangioblastoma.The meningioma cases consisted of 95.4%(103/108)cases of grade Ⅰ,3.7%(4/108)cases of grade Ⅱ,and only 1(1/108,0.9%)case of grade Ⅲ.Among the neuroepithelial tumor cases,the top three were glioblastoma,grade Ⅲ diffuse glioma,and ependymoma. Conclusions There are diverse CNS diseases confirmed by pathological diagnosis in Tibet,among which non-neoplastic diseases account for 1/3 of all the cases.Infectious and vascular diseases are the most common non-neoplastic diseases in Tibet,and tuberculosis and parasitic infections are relatively common.The types and proportion of brain tumors in Tibet are different from those in other regions of China,and meningioma is the most common in Tibet,with higher proportion than neuroepithelial tumor.
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Adolescent , Adult , Aged , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Middle Aged , Young Adult , Brain Neoplasms/diagnosis , Central Nervous System Diseases/pathology , Ependymoma , Meningeal Neoplasms , Retrospective Studies , Tibet/epidemiologyABSTRACT
Adenosquamous carcinoma (ASC) of the lung is a unique type of lung cancer. The pathological definition is a carcinoma showing components of both squamous cell carcinoma (SCC) and adenocarcinoma, with each accounting for ≥10% of the tumor. Definitive diagnosis requires a resection specimen sampled appropriately. Biopsy and cytology can not make the diagnosis of adenosquamous carcinoma. The research by applying microdissection and next-generation sequencing showed that the genotype of adenocarcinoma component and SCC component in ASC are similar, which is very close to the pure adenocarcinoma and significantly different from the pure SCC. So far, the theory of common precursor stem cell differentiating to adenocarcinoma and SCC is the most accepted among the hypotheses about adenocarcinoma origin.
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Unilateral primary aldosteronism (UPA) is a common form of PA that is surgically curable by adrenalectomy of the overactive gland. Pathological evaluation of resected adrenals is crucial in the diagnosis of UPA, and its subsequent treatment and follow-up as well. Histomorphological evaluation is the basis for the pathological diagnosis of UPA, and the wide use of aldosterone synthase immunohistochemical staining in recent years has greatly improved the pathological diagnosis of UPA. However, there is a lack of standardized nomenclature and diagnostic criteria. Therefore, consensus on the histopathologic diagnosis of UPA were developed by an international group of pathologists led by Tracy Ann Williams, and published in J Clin Endocrinol Metab, 2021. This article will elaborates on the key points in the consensus to advance the understanding and overall improve clinical mangement of UPA.
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DNA methylation is an epigenetic modification form with the most extensive and in-depth studying. DNA methylation is a powerful tool for tumor classification in the central nervous system (CNS), which is used in the molecular classification of various tumors, such as ependyma and meningioma, to accurately predict tumor biological behavior and survival prognosis, and to provide important information for individualized treatment. DNA methylation will also become an important auxiliary diagnostic method for the identification of different types of CNS tumors, improve the accuracy of pathological diagnosis, and even help to find new tumor entities. In the current review, we focus on the role of DNA methylation in the molecular classification and pathological diagnosis of CNS tumors, in order to provide more enlightenment for accurate diagnoses and treatments of tumors.
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Objective:To investigate the ultrasound image and pathological features of invasive fibromatosis, and to provide a basis for the diagnosis of invasive fibromatosis.Methods:The clinicopathological data of 22 patients pathologically diagnosed with invasive fibromatosis from January 2016 to March 2019 in Shanxi Provincial Cancer Hospital were retrospectively analyzed. The clinical, ultrasound and pathological data were also summarized.Results:Ultrasound images of invasive fibromatosis showed irregular morphology, unclear boundaries, uneven echo, spot-like or strip-shaped blood flow signals. The coincidence rate of ultrasound diagnosis was 59.1% (13/22), 3 cases were misdiagnosed as fibrous, fat and other sarcomas, 4 cases were misdiagnosed as nerve-derived tumors, 1 case was misdiagnosed as nodular fasciitis, and 1 case was misdiagnosed as gastrointestinal stromal tumor. The pathological characteristics of invasive fibromatosis were more typical, and the positive expression rate of vimentin and β-catenin in immunohistochemistry was 100.0% (22/22); the coincidence rate of preoperative pathological diagnosis of puncture was 78.6% (11/14), 1 case was misdiagnosed as nerve fiber tumor, 1 case was misdiagnosed as low-grade fibromyxoid sarcoma, and 1 case was misdiagnosed as nodular fasciitis.Conclusion:Invasive fibromatosis has a certain specificity in ultrasound and pathological diagnosis, which can be diagnosed and differentially diagnosed according to the ultrasound image and pathological characteristics.
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Resumen Se realizó un diagnóstico patológico de un cultivo de Mora de Castilla en la vereda Pascote, municipio de Gutiérrez Cundinamarca, Colombia. Las muestras vegetales se tomaron de las hojas, tallo, flor, fruto y raíz; las cuales, se procesaron en identificaron en el laboratorio de fitopatología de la Universidad de los Llanos. En el campo se evaluó incidencia de cada síntoma. Se encontraron cuatro patógenos fungosos Colletrotrichum . gloesporoides (Penz.) Penz. con 40.00% de incidencia, Peronospora sparsa Berk con una incidencia del 20.00 %, Oidium sp, con 12.50% de incidencia y Botrytis cinérea Perms., con una incidencia del 7.50 %.
Abstract A pathological diagnosis was made of an Andean blackberry crop (Rubus glaucus Bentham) in the rural area of Pascote, in the municipality of Gutiérrez, Cundinamarca, Colombia. Samples were taken from blackberry leaves, stems, flowers, fruit and roots; they were processed and identified in the Universidad de Los Llanos' plant pathology laboratory. Pathogen/disease symptom incidence was evaluated in the field. Four fungal pathogens were found and identified: Colletotrichum gloesporoides (Penz.) Penz (anthracnose), 40% incidence, Peronospora sparsa Berk (downy mildew), 20% incidence, Oidium sp. (powdery mildew), 12.5% incidence, and Botrytis cinerea Perms (gray mold disease), 7.5% incidence.
Resumo Realizou-se um diagnóstico fitopatológico num cultivo de amora preta no Vilarejo de Pascote, município de Gutiérrez, Cundinamarca, Colômbia. As amostras vegetais foram colhidas das folhas, caule, flor, fruto e raiz; que foram processados e identificados no laboratório de patologia vegetal da Universidad de los Llanos. A incidência de cada sintoma foi avaliada no campo. Foram encontrados quatro patógenos fúngicos: Colletrotrichum. gloesporoides (Penz.) Penz. com uma incidência de 40,00%; Peronospora sparsa Berk com uma incidência de 20,00%; Oidium sp, com uma incidência de 12,50%; e Botrytis cinérea Perms., com uma incidência de 7,50%.
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RESUMEN Introducción: Los tumores de Células de Sertoli son una entidad rara, con una frecuencia de 0,2-0,5 % del cáncer de ovario. El diagnóstico inicial de este tipo de tumores es difícil, debido a las variedades histológicas que presenta y a su diferenciación. Objetivo: Demostrar el valor del completamiento del proceso diagnóstico con técnicas de inmunohistoquímica en tumores ováricos para identificar una variante rara como el tumor de Células de Sertoli. Presentación del caso: Se presenta un caso de un tumor de ovario primitivo de Células de Sertoli en una paciente de 43 años de edad, con antecedentes personales de hipotiroidismo, intervenida quirúrgicamente por un tumor sólido del ovario derecho en el Hospital General Docente "Dr. Agostino Neto". En el intraoperatorio, se encontró un tumor gigante de aspecto maligno. El resultado anatomopatológico informó un tumor carcinoide típico. La paciente fue remitida al Instituto Nacional de Oncología y Radiobiología, donde la inmunohistoquímica de la biopsia informó un tumor de Células de Sertoli. Actualmente la paciente se encuentra asintomática. Conclusiones: El diagnóstico anatomopatológico preciso y la inmunohistoquímica correcta son muy importantes para el manejo y tratamiento de este tipo de tumor.
ABSTRACT Introduction: Sertoli cell tumors are a rare entity with an incidence of ovarian cancer of 0,2-0,5 %. The initial diagnosis of this type of tumors is difficult to make due to the histological varieties and its differentiation. Objective: To demonstrate the value of immunochemical techniques in the completion of the diagnostic process of ovarian tumors aimed at identifying a rare variant such as Sertoli cell tumor. Case presentation: A 43-year old woman with a primitive Sertoli cell tumor of the ovary is presented. The patient had personal history of hypothyroidism. She underwent surgery at "Dr. Agostinho Neto" General Teaching Hospital because she had been diagnosed with a solid tumor of the right ovary. During the intraoperative period, a giant tumor with a malignant appearance was found. The pathological result reported a typical carcinoid tumor. The patient was referred to the National Institute of Oncology and Radiobiology where the immunohistochemistry of the biopsy reported a Sertoli cell tumor. Currently, the patient is asymptomatic. Conclusions: The accurate pathological diagnosis and the correct immunohistochemistry are very important for the management and treatment of this type of tumor.
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Primary ureteral plasmacytoid carcinomas is a rare tumor with high grade and poor diagnosis. Pathological and immunohistochemical staining play an extremely key role in diagnosis since there is no specific clinical and radiological evidence. The surgical removement is the first line treatment. Herein, we report a case of ureteral plasmacytoid carcinoma that was well controlled with multimodal therapy.
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Primary ureteral plasmacytoid carcinomas is a rare tumor with high grade and poor diagnosis.Pathological and immunohistochemical staining play an extremely key role in diagnosis since there is no specific clinical and radiological evidence.The surgical removement is the first line treatment.Herein,we report a case of ureteral plasmacytoid carcinoma that was well controlled with multimodal therapy.