ABSTRACT
O linfoma é uma neoplasia originária do sistema linfático, a partir de células linfocitárias. A sintomatologia mais comum é febre, tosse, sudorese noturna, perda de peso, fraqueza e linfoadenopatia indolor. A etiologia ainda permanece desconhecida, tendo sido relacionada ao vírus Epstein-Barr. O diagnóstico se baseia na visualização das células de Reed-Sternberg. O esquema adriamicina, bleomicina, vinblastina e dacarbazina (ABVD) ainda é o tratamento preconizado, associado ou não à radioterapia. Relatamos um caso de linfoma de Hodgkin de apresentação atípica, cujo diagnóstico só foi possível por esplenectomia.(AU)
The lymphoma is a cancer of the lymphatic system originating from lymphocyte cells. The most common symptoms are fever, cough, night sweats, weight loss, weakness, and painless lymphadenopathy. The etiology remains unknown, having been related to the Epstein Barr virus. The diagnosis is based on visualization of Reed Sternberg cells. The adriamycin, bleomicin, vinblastine and dacarbazine (ABVD) regimen is still the preferred treatment, with or without radiation therapy. We report a case of Hodgkin's lymphoma of atypical presentation, the diagnosis of which was only possible through splenectomy.(AU)
Subject(s)
Humans , Male , Aged , Antineoplastic Combined Chemotherapy Protocols , Cyclophosphamide/administration & dosage , Hodgkin Disease/diagnosis , Hodgkin Disease/drug therapy , Reed-Sternberg Cells , Vinblastine/administration & dosageABSTRACT
Objective@#To explore the role of GTP binding protein 2 (Septin2) in the differentiation of Hodgkin’s Lymphoma H/RS cells (Hodgkin/Reed-Sternberg) to B lymphocytes.@*Methods@#The expressions of Septin2 mRNA and protein in Hodgkin’s Lymphoma cell line L428 which CD99 was overexpressed were detected by RT-qPCR and Western blot,confocal laser microscopy and immunocytochemistry (ICC) . RT-qPCR and Western blot were used to assay the expression of Septin2 after Septin2-siRNA transfected into L428 cells, and confocal laser microscopy, CCK8 assay and flow cytometry were used to analyze the changes of F-actin cytoskeleton,cell proliferation ability and immunophenotype.@*Results@#The low expressions of Septin2 mRNA and protein were detected in L428 cell line after overexpresion of CD99 (0.329±0.019 vs 1.000, P=0.001) and Septin2 siRNA transfection (0.276±0.025 vs 1.000, P=0.000) compared to controls. Compared to vector group, Septin2 siRNA transfection could lead to decrease of cell size, decline of proliferation activity (F=204.927, P<0.001) and reconstruction of F-actin cytoskeleton, and the expression of specific antigen markers CD30 and CD15 of H/RS cell decreased, B cell antigen marker CD19 as well as germinal center marker CD10 and early plasma cell marker CD38 were up-regulated.@*Conclusion@#Septin2 interference promotes H/RS cells’ redifferentiation to B lymphocytes
ABSTRACT
Causes of malignant pericardial eff usion include metastatic carcinomas, acute leukemias, chronic leukemias, non-Hodgkin lymphoma, and rarely Hodgkin lymphoma. We report here a case of nodular sclerosis classic Hodgkin lymphoma presenting with massive pericardial eff usion. Cytological fi ndings of the pericardial fl uid and histopathology of the lymph node are presented. A 13-year-old girl came with complaints of a cough and progressive breathlessness for 5 months. She also had B symptoms. Imaging showed massive pericardial eff usion, along with mediastinal, cervical, and abdominal lymphadenopathy. Pericardiocentesis was done. A cytology of the pericardial fl uid showed large atypical Reed–Sternberg (RS) - like cells in a background of lymphocytes, eosinophils and plasma cells – suggestive of Hodgkin lymphoma. Cervical lymph node biopsy and immunohistochemistry confi rmed the diagnosis of classical Hodgkin lymphoma – nodular sclerosis subtype. Th e institution of chemotherapy resulted in signifi cant decrease in pericardial eff usion, and the patient was discharged in a satisfactory condition. Hodgkin lymphoma presenting clinically with massive pericardial eff usion and showing RS cells in the pericardial fl uid is very rare. A cytopathologist needs to be aware of this possibility which will facilitate early diagnosis and treatment.
ABSTRACT
Interfollicular Hodgkin's lymphoma represents an unusual pattern of focal involvement of interfollicular zones by Hodgkin's lymphoma along with florid reactive follicular hyperplasia. It is often mistakenly diagnosed as a reactive change. We report a case of a 36 years old male with persistent lymphadenitis for three years, who was finally diagnosed as Interfollicular Hodgkin's lymphoma after being incorrectly diagnosed as reactive lymphadenitis. This case is reported in view of the unusual pattern of Hodgkin's lymphoma as well as its misdiagnosis as a benign lesion.
ABSTRACT
We describe cytologic findings of two cases of pilomatrixoma which had been cytologically misdiagnosed as suspicious malignant and malignant lesions in 35 year-old and 22 year-old females who presented a palpable neck mass. The cytologic smears showed many basaloid cells with a high nuclear-cytoplasmic ratio, nuclear hyperchromatism and prominent nucleoli, keratinized squamous cells with pyknotic nuclei, foreign body giant cells, and chronic inflammatory cells in necrotic background. Retrospective view of this aspiration smear revealed that these findings were characteristic features of pilomatrixoma, and the evenly distributed chromatin pattern as well as the lack of nuclear pleomorphism were considered to be the differential points from malignant neoplasm. Pilomatrixoma is a benign neoplasm which should be included in differential diagnosis if the fine needle aspiration cytologic smear of a neck mass or subcutaneous mass of any site showed these features.
Subject(s)
Female , Humans , Diagnosis, DifferentialABSTRACT
Cytologic findings from five cases with variable types of Hodgkin' disease were reviewed with special emphasis on the Reed-Sternberg (R-S) cells and their variants. Typical R-S and Hodgkin's cells were mono- or binucleated, and nuclei had rounded smooth contour. Acidophilic prominent nucleoli with perinucleolar halo were conspicuous. In comparison to typical Reed-Sternberg cells, L & H (lymphocytic and histiocytic) cells in the lymphocyte predominant type tended to show pop-corn like irregular nuclear contour and to lack the prominent nucleoli. Lacunar cells in the nodular sclerosis type had multilobated nuclei with prominent acidophilic nucleoli. There was no prominent perinucleolar halo in L & H and lacunar cells. In conjuction with the number of Reed-Sternberg cells and back ground findings observed on the smears, the characteristic features of R-S cells and their variants allowed to make typing of Hodgkin's disease.