Histopathology and Immunohistochemical profile of mediastinal lymphoma in Dr. Soetomo General Hospital
Keywords:
mediastinal lymphoma, histopathology, immunohistochemistryAbstract
Mediastinal lymphoma is a rare tumor. Approximately 10% of primary mediastinal lymphoma occur in mediastinum. In this study we look for sex and age characteristics, histopathology and immunohistochemical profile of mediastinal lymphoma. Data were collected from the Anatomical Pathology laboratory Dr. Soetomo archives from January 2016 to August 2018. Seventeen cases of mediastinal lymphoma were found predominantly in males (76.47 %). The age range was between 17 and 64 years old. Distribution of tumor type was as follows: Non-Hodgkin’s Lymphoma, B-cell type high grade (Ki67 > 30%) 17.65 % and Non-Hodgkin’s Lymphoma, B-cell type low grade (Ki67 <30%) 11.76%, Non-Hodgkin’s Lymphoma, T-cell type high grade 11.76%, Non-Hodgkin’s Lymphoma unknown subtype 35.29%, Classical Hodgkin’s Lymphoma (CHL) 17.65%, T-cell Lymphoblastic Lymphoma (T-LBL) 5.88%. Histologically, Non-Hodgkin’s Lymphoma showed a diffuse pattern consisting of anaplastic lymphoid cells, pleomorphic nuclei, coarse chromatin, thin cytoplasm between fibrotic stroma and the immunohistochemistry profile showed positive for CD20 in NHL B-cell type. CD3 were positive in Peripheral T-cell Lymphoma and T-Lymphoblastic Lymphoma (T-LBL). Classical Hodgkin’s Lymphoma showed large cells (reed-stenberg cells) and Hodgkin’s cells dispersed between an inflammatory background, CD30 were positive in CHL cases. Tdt was positive in T-LBL cases.
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