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1.
Rev. chil. obstet. ginecol. (En línea) ; 85(1): 53-59, feb. 2020. graf
Article in Spanish | LILACS | ID: biblio-1092775

ABSTRACT

INTRODUCCIÓN: el carcinoma endometrial es la sexta entidad maligna más común a nivel mundial. En la mayoría de casos se diagnóstica de forma temprana. Recurre principalmente a cúpula vaginal y a nivel linfático, sin embargo, se han descrito metástasis a vagina, peritoneo y pulmones, entre otros. PRESENTACIÓN DEL CASO: paciente femenina adulta mayor con antecedente de carcinoma endometrial hace 7 años, tratado quirúrgicamente con estudio histopatológico que evidenciaba un miometrio infiltrado en un 95% sin invasión a otros órganos y linfadenectomía libre de lesión (estadio FIGO IB), quien consulta por dolor abdominal localizado en mesogastrio y deposiciones melénicas, evidenciándose una lesión gástrica, con resultado de biopsia que reporta carcinoma pobremente diferenciado con positividad focal para vimentina compatible con metástasis gástrica secundaria a carcinoma endometrial. Se indica manejo sistémico con quimioterapia, se documenta respuesta total de la lesión. DISCUSIÓN: las lesiones tumorales a nivel de estómago son primarios en su gran mayoría, una metástasis a este nivel es inusual. En el momento del diagnóstico de una metástasis gástrica, la mitad de las pacientes presentan concomitante compromiso de otros órganos. El carcinoma endometrial no está descrito dentro de los primarios que generan este compromiso. CONCLUSIÓN: el caso expuesto es un reto clínico, que representa un vacío en la evidencia actual; se comparte la experiencia de un manejo exitoso. Son necesarios más estudios para evaluar el pronóstico, opciones de tratamiento y definir la pertinencia de métodos de tamización para la detección temprana de estos casos.


INTRODUCTION: the endometrial carcinoma is the sixth cancer worldwide. Usually it is diagnosed in early stages. The sites of recurrence includes vaginal cuff and lymph nodes, however some metastasis have been described to vagina, peritoneum and lungs, among others. CASE REPORT: Elder female with history of an endometrial carcinoma 7 years ago, surgically treated. With histopathology that reported myometrial infiltration in a 95% without invasion to other organs and lymphadenectomy free of neoplasm (FIGO IB), who consult at the emergency room due to abdominal pain and black stool, with further studies that make evident a gastric lesion with biopsy reported as a poorly differentiated carcinoma, vimentin positive, compatible with gastric metastasis secondary to an endometrial carcinoma. Chemoterapy was indicated, documenting total posterior response of the lesion. DISCUSSION: Secondary lessions in stomach are rare. If they are present at the moment of diagnosis half of the patients concomitantly have metastasis in other organs. The endometrial carcinoma hasn't been described as a common localization that result in this compromise. CONCLUSION: the case exposed is a clinical challenge, a therapeutic success is shared. Limited evidence is available. Further studies are necessary to evaluate the prognosis, therapeutic options and to define the relevance of screening tests for early detection.


Subject(s)
Humans , Female , Aged , Carcinoma/secondary , Endometrial Neoplasms/pathology , Gastrointestinal Neoplasms/secondary , Carcinoma/diagnostic imaging , Gastrointestinal Neoplasms/diagnostic imaging
2.
Int. braz. j. urol ; 45(6): 1270-1274, Nov.-Dec. 2019. graf
Article in English | LILACS | ID: biblio-1056328

ABSTRACT

ABSTRACT Bladder cancer is a common cancer that may present as superficial, invasive, or metastatic disease. Non-muscle-invasive bladder cancer (NMIBC) represents the majority of bladder cancer diagnoses, but represents a spectrum of disease with a variable clinical course, notably for significant risk of recurrence and potential for progression. NMIBC metastasis to distant organs without local invasion or regional metastasis is a very rare occurrence, so there are limited case reports about early metastasis in the literature.


Subject(s)
Humans , Male , Aged , Urinary Bladder Neoplasms/pathology , Carcinoma/secondary , Head and Neck Neoplasms/pathology , Lymphatic Metastasis/pathology , Urinary Bladder Neoplasms/diagnostic imaging , Carcinoma/diagnostic imaging , Tomography, X-Ray Computed , Ultrasonography , Fatal Outcome , Head and Neck Neoplasms/diagnostic imaging , Lymphatic Metastasis/diagnostic imaging
3.
Rev. Assoc. Med. Bras. (1992) ; 65(6): 761-766, June 2019. tab, graf
Article in English | LILACS | ID: biblio-1041044

ABSTRACT

SUMMARY OBJECTIVE: CT perfusion (CTP) is an imaging technique that can be used to evaluate the changes in the microcirculation of tumor tissues. Our study aimed to investigate the role of CTP in predicting mediastinal lymph node metastasis. METHODS: Clinical data of 58 patients who received surgical resection of lung cancer and lymph node dissection in our hospital from June 2012 to December 2014 were collected. Patients were divided into a positive lymph node metastasis group and a negative lymph node metastasis group. Parameters of CTP, including peak enhancement intensity (PEI), perfusion value (PV), as well as blood volume (BV), were compared between the two groups. The receiver-operating characteristic (ROC) curve was used to predict mediastinal lymph node metastasis. RESULTS: The PV of the positive lymph node metastasis group was significantly higher than that of the negative group (p < 0.001). The ROC curve analysis showed that PV can be used as an index to predict mediastinal lymph node metastasis of lung cancer. The sensitivity and specificity of a PV greater than 7.5ml·min-1·ml-1 in predicting lymph node metastasis of lung cancer were 78.3 % and 91.4 %, respectively. CONCLUSION: The PV of low dose CT perfusion can be used as an index for predicting mediastinal lymph node metastasis of lung cancer.


RESUMO OBJETIVOS: A perfusão por TC objetiva (CTP) é uma técnica de imagem que pode ser usada para avaliar as alterações na microcirculação de tecidos tumorais. Nosso estudo teve como objetivo investigar o papel da CTP na predição de metástases em linfonodos mediastinais. MÉTODOS: Dados clínicos de 58 pacientes que receberam ressecção cirúrgica de câncer de pulmão e dissecção de linfonodos em nosso hospital de junho de 2012 a dezembro de 2014 foram coletados. Os pacientes foram divididos em grupo positivo para metástase linfonodal e grupo negativo para metástase linfonodal. Parâmetros de CTP incluindo pico de intensidade de realce (PEI) e valor de perfusão (PV), bem como volume de sangue (BV), foram comparados entre os dois grupos. A curva característica de operação do receptor (ROC) foi usada para predizer metástase linfonodal mediastinal. RESULTADOS: PV do grupo de linfonodos metastáticos positivos foi significativamente maior do que o grupo negativo de linfonodos metastáticos (p<0,001). A análise da curva ROC mostrou que a PV pode ser usada como um índice para predizer a metástase linfonodal mediastinal do câncer de pulmão. A sensibilidade e a especificidade da VP maior que 7,5ml · min-1 · ml-1 na predição de metástase linfonodal de câncer de pulmão foram de 78,3% e 91,4%, respectivamente. CONCLUSÃO: A VP de perfusão por TC de baixa dose pode ser usada como um índice para a predição de metástase linfonodal mediastinal de câncer de pulmão.


Subject(s)
Humans , Male , Female , Adult , Aged , Aged, 80 and over , Carcinoma/secondary , Tomography, X-Ray Computed/methods , Perfusion Imaging/methods , Lung Neoplasms/pathology , Lymphatic Metastasis/diagnostic imaging , Mediastinal Neoplasms/secondary , Mediastinal Neoplasms/diagnostic imaging , Radiation Dosage , Reference Standards , Reproducibility of Results , Sensitivity and Specificity , Middle Aged
4.
Arq. gastroenterol ; 56(1): 45-50, Jan.-Mar. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001332

ABSTRACT

ABSTRACT BACKGROUND: Hepatocellular carcinoma (HCC) can be the last step of non-alcoholic fatty liver disease (NAFLD) evolution. Experimental models are crucial to elucidate the pathogenesis of HCC secondary to NAFLD. The 2-deoxy-2-(18F)fluoro-D-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) plays an important role in evaluating HCC development and progression. OBJECTIVE: To standardize the imaging method of PET/CT with 18F-FDG as an evaluation tool of the experimental model of HCC secondary to NAFLD. METHODS: Ten male Sprague-Dawley rats were fed with choline-deficient high-fat diet and diethylnitrosamine (DEN) in the drinking water for 16 weeks and then received 1 mL of saline solution (0.9%) daily by gavage for three weeks. At the 16th and 19th weeks, abdominal ultrasonography (USG) was performed. 18F-FDG PET/CT images were obtained before the beginning of experiment (week 0) and at the end (week 19). Histological and immunohistochemically analysis were also performed. RESULTS: The USG results showed a homogeneous group at the 16th week with an average of 4.6±2.74 nodules per animal. At the 19th week, PET/CT findings demonstrated an average of 8.5±3.7 nodules per animal. The mean values of SUVmed and SUVmax were 2.186±0.1698 and 3.8±1.74, respectively. The average number of nodules per animal in the histological analysis was 5.5±1.5. From all nodules, 4.6% were classified as well-differentiated HCC and 81.8% were classified as poorly-differentiated HCC. CONCLUSION: 18F-FDG PET/CT was able to evaluate the development of HCC in an experimental model of NAFLD non-invasively. From the standardization of PET/CT in this model, it is possible to use this tool in future studies to monitor, in vivo and non-invasively, the progression of HCC.


RESUMO BACKGROUND: O carcinoma hepatocelular (CHC) pode ser a última fase da doença hepática gordurosa não alcoólica (DHGNA). Modelos experimentais são cruciais para elucidação da patogênese do CHC secundário a DHGNA. A tomografia por emissão de pósitrons/tomografia computadorizada (PET/TC) com 2-desoxi-2-(18F)fluoro-D-glicose (18F-FDG) desempenha um importante papel na avaliação do desenvolvimento e progressão do CHC. OBJETIVO: Padronizar a metodologia de imagem por PET/TC com 18F-FDG como uma ferramenta de avaliação do modelo experimental de CHC secundário a DHGNA. MÉTODOS: Dez ratos Sprague-Dawley machos foram alimentados com dieta hiperlipídica deficiente em colina associada a dietilnitrosamina (DEN) na água de beber por 16 semanas e depois receberam 1 mL de solução salina (0,9%) por gavagem diariamente por três semanas. Nas 16ª e 19ª semanas, foi realizada a ultrassonografia abdominal. As imagens do PET/TC com 18F-FDG foram obtidas antes do início do experimento (semana 0) e no final (semana 19). Análises histológica e imunohistoquímica também foram realizadas. RESULTADOS: Os resultados da ultrassonografia demonstraram um grupo homogêneo na 16ª semana com uma média de 4,6±2,74 nódulos por animal. Na 19ª semana, os achados do PET/CT demonstraram uma média de 8,5±3,7 nódulos por animal. Os valores médios de SUVmed e SUVmáx foram 2,186±0,1698 e 3,8±1,74, respectivamente. A média do número de nódulos na análise histológica foi de 5,5±1,5. De todos os nódulos, 4,6% foram classificados como bem diferenciados e 81,8% foram classificados como CHC pouco diferenciado. CONCLUSÃO: O PET/TC com 18F-FDG foi capaz de avaliar o desenvolvimento do CHC secundário a DHGNA de forma não invasiva. A partir da padronização do PET/CT neste modelo, faz-se possível a utilização desta ferramenta em futuros estudos para monitorar, in vivo e de forma não invasiva, a progressão do CHC.


Subject(s)
Animals , Male , Carcinoma/diagnostic imaging , Positron Emission Tomography Computed Tomography/methods , Liver Neoplasms, Experimental/diagnostic imaging , Prognosis , Carcinoma/pathology , Carcinoma/secondary , Ultrasonography , Rats, Sprague-Dawley , Radiopharmaceuticals/administration & dosage , Fluorodeoxyglucose F18/administration & dosage , Disease Models, Animal , Neoplasm Grading , Non-alcoholic Fatty Liver Disease/complications , Positron Emission Tomography Computed Tomography/standards , Liver Neoplasms, Experimental/pathology , Liver Neoplasms, Experimental/secondary , Neoplasm Staging
5.
An. bras. dermatol ; 93(3): 429-431, May-June 2018. graf
Article in English | LILACS | ID: biblio-949879

ABSTRACT

Abstract: Cutaneous metastasis is the main cause of morbidity and mortality of cancer patients, denoting a guarded prognosis. The clinical spectrum of the disease is broad and can mimic benign conditions. The diagnosis depends on thorough clinical examination and complementary exams, with emphasis on the histopathological study and immunohistochemistry. Because it indicates a systemic relapse, it is necessary to intervene with intravenous chemotherapy, to which local therapies can be associated. We report the case of a 65-year-old woman with cutaneous metastasis from breast cancer treated 14 years back, manifested by extensive firm and infiltrated red-purple plaques on the sides of the trunk, with a course of six months. After evaluation, she was referred to the regional cancer center. She passed away one month and a half later.


Subject(s)
Humans , Female , Aged , Skin Neoplasms/secondary , Breast Neoplasms/pathology , Carcinoma/secondary , Skin Neoplasms/diagnosis , Immunohistochemistry , Carcinoma/diagnosis , Fatal Outcome
7.
Arq. bras. oftalmol ; 79(6): 407-410, Nov.-Dec. 2016. graf
Article in English | LILACS | ID: biblio-838762

ABSTRACT

ABSTRACT Ocular metastasis is relatively uncommon, with a reported incidence of approximately 8%, according to the results of autopsy evaluation. The majority of ocular metastases are located within the choroid, while metastatic tumors affecting the iris are rare. Metastatic tumors may manifest as stromal nodules or ill-defined iris thickening, or they may present with nonspecific features such as pain, iridocyclitis, and hyphema. Here, we describe three patients with iris metastasis and discuss the diagnostic challenges and unusual findings associated with these cases.


RESUMO A maioria das metástases oculares do câncer sistêmico são encontrados na coroide. As metástases para a íris são incomuns, podendo se manifestar como nódulo estromal, espessamento de íris de limites mal definidos ou como uma iridociclite ou hifema. Relatamos 3 pacientes com lesão de íris e história pregressa de câncer sistêmico. Enfatizamos a dificuldade no diagnóstico e raridade dessas lesões comparando com relatos anteriores.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Carcinoma/secondary , Iris Neoplasms/secondary , Breast Neoplasms/pathology , Carcinoma/therapy , Carcinoma/diagnostic imaging , Adenocarcinoma/pathology , Iris Neoplasms/therapy , Iris Neoplasms/diagnostic imaging , Fatal Outcome , Kidney Neoplasms/pathology
9.
An. bras. dermatol ; 91(5,supl.1): 101-104, Sept.-Oct. 2016. graf
Article in English | LILACS | ID: biblio-837923

ABSTRACT

Abstract Metastatic ovarian cancer uncommonly presents with skin metastasis. When present, skin metastases of ovarian cancer are usually localized in the vicinity of the primary tumor. We report a case of a 58-year-old woman with a rapid growing erythematous, well-defined nodule localized on the left nasal ala. A skin biopsy was performed and histopathological and immunohistochemical findings were compatible with a cutaneous metastasis of adenocarcinoma. A systematic investigation revealed a bilateral ovarian cystadenocarcinoma associated with visceral dissemination, likely associated with nose cutaneous metastasis. We report a very uncommon case because of the presentation of ovarian carcinoma as cutaneous metastasis. To our knowledge, this atypical localization on the nose has not been described yet in the literature.


Subject(s)
Humans , Female , Middle Aged , Ovarian Neoplasms/pathology , Skin Neoplasms/secondary , Carcinoma/secondary , Nose Neoplasms/secondary , Ovarian Neoplasms/diagnostic imaging , Skin/pathology , Skin Neoplasms/pathology , Biopsy , Carcinoma/diagnostic imaging , Tomography, X-Ray Computed , Nose Neoplasms/pathology
10.
An. bras. dermatol ; 91(5,supl.1): 105-107, Sept.-Oct. 2016. tab, graf
Article in English | LILACS | ID: biblio-837949

ABSTRACT

Abstract Cutaneous metastases from primary internal malignancies represent 0.7-9% of patients with cancer. We report a 65-year-old female patient referred for evaluation of normochromic papules on the trunk and upper limbs that had been present for three months. A skin biopsy revealed diffuse cutaneous infiltration by small round cell tumors. Immunohistochemistry was positive for AE1/AE3, CK7, estrogen receptor and mammaglobin. The final diagnosis was cutaneous metastasis of occult breast cancer, since the solid primary tumor was not identified. The location of the primary tumor can not be determined in 5-10% of cases. In these cases, 27% are identified before the patient’s death, 57% at autopsy, and the remaining 16% can not be located.


Subject(s)
Humans , Female , Aged , Skin Neoplasms/secondary , Neoplasms, Unknown Primary/pathology , Breast Neoplasms/pathology , Carcinoma/secondary , Skin/pathology , Skin Neoplasms/pathology , Biopsy , Immunohistochemistry , Biomarkers, Tumor/analysis
11.
Biol. Res ; 49: 1-7, 2016. ilus, graf
Article in English | LILACS | ID: biblio-950862

ABSTRACT

BACKGROUND AND OBJECTIVE: Long non-coding RNAs can regulate tumorigenesis of various cancers. Dys-regulation of lncRNA-AFAP1-AS1 has not been studied in colorectal carcinoma (CRC). This study was to examine the function involvement of AFAP1-AS1 in tumor growth and metastasis of CRC. METHODS: Relative expression of AFAP1-AS1 in CRC tissues and CRC cells lines was determined using quantitative real-time PCR (qRT-PCR). Functional involvement of AFAP1-AS1 in tumor proliferation and metastasis was evaluated in AFAP1-AS1-specific siRNA-treated CRC cells and in CRC cell xenograft. Expression of epithelial-mesenchymal transition (EMT)-related gene expression was determined using western blot. RESULTS: Relative expression of AFAP1-AS1 was significantly elevated in CRC tissues and CRC HCT116 and SW480 cell lines. AFAP1-AS1 knock-down suppressed SW480 cell proliferation, colony formation, migration and invasion. Also AFAP1-AS1 knock-down inhibited tumor metastasis-associated genes expression in terms of EMT. This carcinostatic action by AFAP1-AS1 knock-down was further confirmed by suppression of tumor formation and hepatic metastasis of CRC cells in nude mice. CONCLUSION: lncRNA-AFAP1-AS1 knock-down exhibits antitumor effect on colorectal carcinoma in respects of suppression of cell proliferation and metastasis of cancer cells.


Subject(s)
Humans , Animals , Male , Carcinoma/secondary , Colorectal Neoplasms/pathology , RNA, Long Noncoding/metabolism , Liver Neoplasms/secondary , Tumor Cells, Cultured , Carcinoma/genetics , Carcinoma/metabolism , Carcinoma/pathology , Colorectal Neoplasms/genetics , Colorectal Neoplasms/metabolism , Gene Expression Regulation, Neoplastic , Cell Movement , Blotting, Western , HCT116 Cells , Cell Proliferation , Gene Knockdown Techniques , Epithelial-Mesenchymal Transition , Real-Time Polymerase Chain Reaction , RNA, Long Noncoding/analysis , Liver Neoplasms/genetics , Mice, Inbred C57BL , Mice, Nude
12.
Acta cir. bras ; 30(11): 785-790, Nov. 2015. tab, graf
Article in English | LILACS | ID: lil-767598

ABSTRACT

PURPOSE: To assess the safety and potential equivalence of the use of hemosiderin compared to the Technetium-99 in sentinel lymph node biopsy in human breast cancer. METHODS: Non-random sample of 14 volunteer women diagnosed with breast cancer with primary tumors (T1/T2) and clinically tumor-free axilla were submitted to the identification of sentinel lymph node using hemosiderin obtained from autologous blood injected in the periareolar region 24h before surgery on an outpatient basis. Patients received preoperative subareolar intradermal injection of Technetium-99 in the immediate preoperative period. Patients were submitted to sentinel lymph node biopsy, with incision in the axillary fold guided by Gamma-Probe, dissection by planes until the identification of the point of maximum uptake of Technetium-99, identifying the marked nodes and their colors. All surgical specimens were sent for pathological and immunohistochemical study. RESULTS: The results showed no evidence of side effects and/or allergic and non-allergic reactions in patients submitted to SLNB with hemosiderin. The SLN identification rate per patient was 100%. SLNB identification rate per patient with hemosiderin was the same as that of Technetium, with a concordance rate of 100% between the methods. CONCLUSION: Hemosiderin is a safe dye that is equivalent to Technetium in breast sentinel lymph node biopsy.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Breast Neoplasms/pathology , Carcinoma/pathology , Hemosiderin , Sentinel Lymph Node Biopsy/methods , Technetium , Carcinoma/secondary , Lymph Nodes/pathology , Neoplasm Grading , Prospective Studies , Reproducibility of Results , Rosaniline Dyes , Tumor Burden
13.
J. appl. oral sci ; 23(1): 3-8, Jan-Feb/2015. graf
Article in English | LILACS, BBO | ID: lil-741588

ABSTRACT

Metastatic breast carcinoma has a great tendency to spread to the mandible. It is concomitantly associated with bone destruction, food intake disorder, and a poorer prognosis. Appropriate animal models need to be developed for a better understanding of the mechanisms underlying the metastatic process of breast cancer cells to mandible and to test the effects of potential lead compounds. Here, we assessed the metastasis model of intracardiac injection using luciferase-transfected metastatic breast cancer cells (MDA-MB-231Luc+) by determining the incidences of metastasis, mCT images, and histopathological results. A high bioluminescence signal mainly detected mandibular lesions with less frequent distal femora and proximal tibiae lesions. Extensive mandibular bone destruction occurred in nude mice grafted with metastatic breast cancer cells. This type of animal model might be a useful tool in assessing therapeutic implications and the efficacy of anti-cancer drugs for osteolytic cancers.


Subject(s)
Humans , Animals , Female , Breast Neoplasms/pathology , Carcinoma/secondary , Disease Models, Animal , Mandibular Neoplasms/secondary , Cells, Cultured , Imaging, Three-Dimensional , Injections, Intramuscular , Luciferases , Luminescent Measurements , Mandible/pathology , Mandible , Mandibular Neoplasms , Mice, Inbred BALB C , Reproducibility of Results , Time Factors , Tomography, X-Ray Computed
15.
Arq. bras. endocrinol. metab ; 58(3): 260-269, abr. 2014. tab, graf
Article in English | LILACS | ID: lil-709343

ABSTRACT

Objective : The aim of this study was to explore the clinical characteristics of renal metastatic cancer, the methods for its detection by radioiodine (131I), and the response to 131I treatment in fourteen patients with renal metastases from differentiated thyroid carcinoma (DTC).Subjects and methods : DTC patients (n = 2,955) that received treatment with 131I were retrospectively analyzed. Scans (131I-WBS, 31I-SPECT/CT and/or 18F-FDG-PET/CT) were performed after an oral therapeutic dose of 131I. Therapeutic efficacy was evaluated based on changes in Tg and anatomical imaging changes at renal lesions.Results : Among these 14 patients, 11 had avidity for 131I, but three patients did not accumulate 131I after 131I treatment. In the 11 131I-positive renal lesions, 10 cases were detected by 131I-SPECT/CT combined with another imaging modality and one case by 131I-WBS combined with ultrasonography (US). In the three 131I-negative renal lesions, two cases were detected by 18F-FDG-PET/CT and one case by computed tomography (CT). In 11 patients with 131I-avid renal metastases, Serum Tg levels in 81.82% (9/11) patients showed a gradual decline, and 18.18% (2/11) of the patients showed a significant elevation. There was no marked difference in serum Tg before the last 131I treatment (Z = 0.157; p = 0.875). Only one patient presented partial response, eight patients exhibited stable disease, and renal metastases progressed in two patients showing progressive disease. No patients reached complete response.Conclusion : 131I-SPECT/CT, combined with another imaging modality after 131I-WBS, can contribute to the early detection of renal metastases of DTC. 131I therapy is a feasible and effective treatment for most DTC renal metastases with avidity for 131I. Arq Bras Endocrinol Metab. 2014;58(3):260-9.


Objetivo : O objetivo deste estudo foi analisar as características clínicas de metástases renais, os métodos para sua detecção por radioiodo (131I) e a resposta ao tratamento com 131I em 14 pacientes com metástases renais de carcinoma diferenciado da tireoide (DTC).Sujeitos e métodos Pacientes com DTC (n = 2.955) que receberam tratamento com 131I foram analisados retrospectivamente. 131I-PCI, 31I-SPECT/CT e/ou 18F-FDG-PET/CT foram feitos após uma dose terapêutica oral de 131I. A eficácia terapêutica foi baseada nas alterações da Tg e nas imagens anatômicas das lesões renais.Resultados : Dos 14 pacientes, 11 apresentaram lesões ávidas por 131I, mas três pacientes não acumularam 131I depois do tratamento com 131I. Nas 11 lesões renais positivas para 131I, 10 casos foram detectados por 131I-SPECT/CT combinado com outra modalidade de exame de imagem e um caso por 131I-WBS combinado com US. Nas três lesões renais negativas para 131I, dois casos foram detectados por 18F-FDG-PET/CT e um caso por tomografia computadorizada (TC). Em 11 pacientes com metástases renais ávidas por 131I, os níveis séricos de Tg em 81,82% (9/11) dos pacientes mostraram um declínio gradual e 18,18% (2/11) apresentaram uma elevação significativa. Não houve diferenças marcadas na Tg sérica antes do último tratamento com 131I (Z = 0,157; p = 0,875). Apenas um paciente apresentou resposta parcial, oito pacientes apresentaram doença estável e as metástases renais progrediram em dois pacientes que apresentaram doença progressiva. Nenhum dos pacientes apresentou resposta completa.Conclusão : 131I-SPECT/CT, combinada com outra modalidade de diagnóstico por imagem após 131I-PCI, pode contribuir para a detecção precoce de metástases renais de DTC. O tratamento ...


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Carcinoma/secondary , Early Detection of Cancer/methods , Iodine Radioisotopes/therapeutic use , Kidney Neoplasms/secondary , Rare Diseases , Thyroid Neoplasms , Carcinoma , Carcinoma/radiotherapy , Iodine Radioisotopes , Kidney Neoplasms , Kidney Neoplasms/radiotherapy , Retrospective Studies , Rare Diseases , Rare Diseases/radiotherapy , Tomography, Emission-Computed, Single-Photon , Tomography, X-Ray Computed , Treatment Outcome , Thyroglobulin/blood , Thyroid Neoplasms , Thyroid Neoplasms/radiotherapy
16.
Einstein (Säo Paulo) ; 12(1): 100-105, Jan-Mar/2014. tab, graf
Article in English | LILACS | ID: lil-705798

ABSTRACT

The authors report the case of a 70-year-old male patient with chronic lymphoid leukemia who presented subsequently a papillary carcinoma of the thyroid with metastases to regional lymph nodes. The patient was treated with surgical thyroidectomy with regional and cervical lymph node excision and radioiodine therapy (I-131). The protocolar control scintigraphy 4 days after the radioactive dose showed I-131 uptake in both axillae and even in the inguinal regions. PET/CT showed faint FDG-F-18 uptake in one lymph node of the left axilla. An ultrasound guided fine needle biopsy of this lymph node identified by I-131 SPECT/CT and FDG-F-18 PET/CT revealed lymphoma cells and was negative for thyroid tissue and thyroglobulin content. The sequential blood counts done routinely after radiation treatment showed a marked fall until return to normal values of leucocytes and lymphocytes (absolute and relative), which were still normal in the last control 19 months after the radioiodine administration. Chest computed tomography showed a decrease in size of axillary and para-aortic lymph nodes. By immunohistochemistry, cells of the lymphoid B lineage decreased from 52% before radioiodine therapy to 5% after the procedure. The authors speculate about a possible sodium iodide symporter expression by the cells of this lymphoma, similar to some other non-thyroid tumors, such as breast cancer cells.


Os autores relatam o caso de um paciente de 70 anos com leucemia linfóide crônica que apresentou subsequentemente um carcinoma papilífero da tireóide com metástases para linfonodos regionais. O paciente foi tratado com tireoidectomia total cirúrgica com exérese de linfonodos regionais e cervicais e radioiodoterapia (I-131). A pesquisa de corpo inteiro protocolar de controle 4 dias após a dose radioativa mostrou captação de I-131 em ambas as axilas e mesmo nas regiões inguinais. PET/CT mostrou discreta captação de FDG-F-18 em um linfonodo da axila esquerda. A biópsia por agulha fina guiada por ultrassom deste linfonodo identificado por SPECT/CT com I-131 e PET/CT com FDG-F-18 revelou células linfomatosas e foi negativa para tecido tireoidiano e conteúdo de tireoglobulina. Os hemogramas sequenciais feitos rotineiramente após tratamento com radiações mostraram uma acentuada queda até retorno aos valores normais de leucócitos e de linfócitos (absolutos e relativos), que continuavam normais no último controle 19 meses após a administração do radioiodo. Tomografia computadorizada de tórax mostrou uma redução em tamanho de linfonodos axilares e para-aorticos. Por imunohistoquímica, as células da linhagem linfoide B decresceram de 52% antes da radioiodoterapia para 5% depois do procedimento. Os autores conjeturam sobre uma possível expressão de symporter de iodeto de sódio pelas células deste linfoma, à semelhança de outros tumores não tireoidianos, tais como células de câncer da mama.


Subject(s)
Aged , Humans , Male , Carcinoma/radiotherapy , Carcinoma/secondary , Laser Therapy/methods , Leukemia, Lymphocytic, Chronic, B-Cell/radiotherapy , Thyroid Neoplasms/radiotherapy , Thyroid Neoplasms/secondary , Biopsy, Fine-Needle , Carcinoma , Carcinoma/surgery , Dose-Response Relationship, Radiation , Iodine Radioisotopes/therapeutic use , Lymphocyte Count , Leukemia, Lymphocytic, Chronic, B-Cell/complications , Lymph Nodes/pathology , Time Factors , Tomography, Emission-Computed, Single-Photon , Treatment Outcome , Thyroid Neoplasms , Thyroid Neoplasms/surgery , Thyroidectomy/methods
17.
Article in English | WPRIM | ID: wpr-114861

ABSTRACT

Breast metastases from extramammary malignancies are uncommon. The most common sources are lymphomas/leukemias and melanomas. Some of the less common sources include carcinomas of the lung, ovary, and stomach, and infrequently, carcinoid tumors, hypernephromas, carcinomas of the liver, tonsil, pleura, pancreas, cervix, perineum, endometrium and bladder. Breast metastases from extramammary malignancies have both hematogenous and lymphatic routes. According to their routes, there are common radiological features of metastatic diseases of the breast, but the features are not specific for metastases. Typical ultrasound (US) features of hematogenous metastases include single or multiple, round to oval shaped, well-circumscribed hypoechoic masses without spiculations, calcifications, or architectural distortion; these masses are commonly located superficially in subcutaneous tissue or immediately adjacent to the breast parenchyma that is relatively rich in blood supply. Typical US features of lymphatic breast metastases include diffusely and heterogeneously increased echogenicities in subcutaneous fat and glandular tissue and a thick trabecular pattern with secondary skin thickening, lymphedema, and lymph node enlargement. However, lesions show variable US features in some cases, and differentiation of these lesions from primary breast cancer or from benign lesions is difficult. In this review, we demonstrate various US appearances of breast metastases from extramammary malignancies as typical and atypical features, based on the results of US and other imaging studies performed at our institution. Awareness of the typical and atypical imaging features of these lesions may be helpful to diagnose metastatic lesions of the breast.


Subject(s)
Adenocarcinoma/secondary , Adolescent , Adult , Breast Neoplasms/secondary , Breast Neoplasms, Male/secondary , Carcinoma/secondary , Female , Humans , Lymphatic Metastasis/diagnostic imaging , Lymphoma, Extranodal NK-T-Cell/pathology , Lymphoma, Large B-Cell, Diffuse/pathology , Male , Melanoma/secondary , Middle Aged , Multiple Myeloma/secondary , Neoplastic Cells, Circulating/pathology
18.
Braz. j. otorhinolaryngol. (Impr.) ; 79(5): 625-628, Sep-Oct/2013. tab
Article in Portuguese | LILACS | ID: lil-688608

ABSTRACT

As adenopatias cervicais constituem importante condição clínica, devido à grande variedade de diagnósticos diferenciais que englobam. O uso da imuno-histoquímica tornou-se importante método auxiliar na avaliação diagnóstica de lesões linfonodais, tanto primárias como secundárias. OBJETIVO: Avaliar o uso da imuno-histoquímica no diagnóstico de malignidade nas biópsias de linfonodos. MÉTODO: Estudo retrospectivo, realizado de 2009 a 2011, com base nos resultados anatomopatológicos arquivados de biópsias de linfonodos. RESULTADOS: A casuística constituiu-se de 32 casos de biópsias de linfonodos, com uso de imuno-histoquímica em 50% (16) casos, dos quais 68,75% foram de linhagem hematogênica e 31,25%, de carcinomas. O método foi utilizado em todos os casos de linfoma. CONCLUSÃO: A imuno-histoquímica foi utilizada em 50% dos casos de biópsias de linfonodos suspeitos de malignidade, sendo em lesões de linhagem epitelial em 31,25% e, para linhagem hematopoiética, em 68,75% dos casos. .


The cervical lymph nodes are relevant due to the diversity of clinical entities. The use of immunohistochemistry is a real method to elucidate the diagnosis of adenopathy, both primary and metastatic neoplasms. OBJECTIVE: To assess the value of immunohistochemistry in the diagnosis of cervical lymph nodes malignancies. METHOD: Retrospective study of the database histopathological specimens from 2009 to 2011. RESULTS: Out of 32 biopsies of cervical lymph nodes, in 16 (50%) the immunohistochemistry was employed, being 68.75% (11) in hematological neoplasms and 31.25% (5) in carcinomas. It was used in all cases of lymphoma. CONCLUSION: The immunohistochemistry was used in 50% of the biopsies of lymph nodes under suspicion of malignancy, being 31.25% in epithelial lesions and 68.75% in lymphoproliferative lesions. .


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Carcinoma/diagnosis , Head and Neck Neoplasms/diagnosis , Hematologic Neoplasms/diagnosis , Immunohistochemistry , Lymph Nodes/pathology , Biopsy , Carcinoma/secondary , Head and Neck Neoplasms/pathology , Hematologic Neoplasms/pathology , Neck , Reproducibility of Results , Retrospective Studies , Sensitivity and Specificity
19.
An. bras. dermatol ; 88(4): 541-544, ago. 2013. tab
Article in English | LILACS | ID: lil-686507

ABSTRACT

BACKGROUND: cutaneous metastases are not so frequent and in the medical literature there are several communications of isolated cases, thereby we decided to continue our study initiated in 1981 (45 years). OBJECTIVE: our objective is to present the research and review of cutaneous metastases of 45 years through our archives at Hospital do Servidor Publico Estadual de Sao Paulo. METHODS: the data were collected from clinical cases registered in our archives at anatomopathology department. RESULTS: since 1963 we have registered 209 patients with cutaneous metastases being the anterior thorax region the most affected area and in second place the abdominal region. Breast cancer was responsible for most of the cases in women and the lung in men. CONCLUSION: this study represents a signioficant number of cases in medical practice because skin metastases of internal carcinomas rarely are observed and the great predominance, mainly due of his origin were represented by adenocarcinomas. .


FUNDAMENTOS: metastases cutaneas não são muito frequentemente descritas na literatura e em geral como casos isolados, nossa observação se iniciou em 1981 tendo registrado todos os casos observados no periodo de 45 anos. OBJETIVO: apresentar a pesquisa e revisão de metastases cutaneas no período de 45 anos em pacientes do Hospital do Sevidor Publico Estadual de São Paulo. MÉTODOS: os dados foram coletados a partir do registro do Serviço de Anatomia Patologica. RESULTADOS: desde 1963 foram registrados 209 pacientes com metastases cutaneas de carcinomas internos, sendo que a região toracica anterior foi a mais acometida e em segundo plano a região abdominal. Cancer de mama foi o responsavel pela maioria dos casos em mulheres e pulmão nos homens. CONCLUSÃO: este estudo representa um numero significativo de casos, pois na pratica medica raramente são observadas metastases de carcinomas internos sendo que a grande maioria,principalmente por sua origem foi predominantemente representada pelos adenocarcinomas. .


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Female , Humans , Male , Middle Aged , Young Adult , Carcinoma/secondary , Skin Neoplasms/secondary , Breast Neoplasms/pathology , Carcinoma/pathology , Lung Neoplasms/pathology , Retrospective Studies , Sex Factors
20.
Int. braz. j. urol ; 39(4): 542-550, Jul-Aug/2013. tab, graf
Article in English | LILACS | ID: lil-687303

ABSTRACT

Objectives To evaluate the prevalence, distribution and association of HPV with histological pattern of worse prognosis of penile cancer, in order to evaluate its predictive value of inguinal metastasis, as well as evaluation of other previous reported prognostic factors. Material and Methods Tumor samples of 82 patients with penile carcinoma were tested in order to establish the prevalence and distribution of genotypic HPV using PCR. HPV status was correlated to histopathological factors and the presence of inguinal mestastasis. The influence of several histological characteristics was also correlated to inguinal disease-free survival. Results Follow-up varied from 1 to 71 months (median 22 months). HPV DNA was identified in 60.9% of sample, with higher prevalence of types 11 and 6 (64% and 32%, respectively). There was no significant correlation of the histological characteristics of worse prognosis of penile cancer with HPV status. Inguinal disease-free survival in 5 years did also not show HPV status influence (p = 0.45). The only independent pathologic factors of inguinal metastasis were: stage T ≥ T1b-T4 (p = 0.02), lymphovascular invasion (p = 0.04) and infiltrative invasion (p = 0.03). conclusions HPV status and distribution had shown no correlation with worse prognosis of histological aspects, or predictive value for lymphatic metastasis in penile carcinoma. .


Subject(s)
Adult , Aged , Aged, 80 and over , Humans , Male , Middle Aged , Young Adult , Carcinoma/virology , Papillomavirus Infections/epidemiology , Papillomavirus Infections/virology , Penile Neoplasms/pathology , Penile Neoplasms/virology , Brazil/epidemiology , Carcinoma/pathology , Carcinoma/secondary , Disease-Free Survival , Inguinal Canal , Lymphatic Metastasis , Predictive Value of Tests , Risk Factors , Time Factors
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