a male patient with acute renal failure (arf) due to large b-cell non-hodgkin lymphoma infiltration of kidney is presented. the diagnosis was suspected because of coincidence of arf and tumor lysis syndrome non-responsive to conservative renal therapies. a renal biopsy confirmed diagnosis and appropriate chemotherapy led to complete improvement of renal function.

non-hodgkin's lymphoma is the 3rd most common cancers in children. in the present study, to determine pathological and clinical features of this cancer, we reviewed records of 84 cases of non-hodgkin's lymphoma who were admitted to ali asghar and bahrami children hospitals from 1989 to 1996. 59% of cases had small non-cleaved cell (sncc) subtype of disease. 15% were lymphoblastic and ...

undifferentiated nasopharyngeal corcinoma is frequently misdiagnosed as large cell malignant lymphoma. the aim of this study is to evaluate the diagnostic role of immunohistochemistry and electron microscopy in this tumor. 81 cases of nasopharyngeal carcinoma were studied. patients ranged from 9-90 years in age (mean: 48.5 years). the age incidence curve was bimodal with two peaks in 2-3 and 5-...

background and objectives: classic hodgkin lymphoma (chl), anaplastic large cell lymphoma (alcl) and some cases of diffuse large b cell lymphoma (dlbcl) have overlapping morphologic features. since they all represent distinct clinico-pathologic entities, we explored the differential diagnostic impact of immunophenotyping to discriminate between them. materials and methods: we included 61 cases ...

Breast is an uncommon site of extra nodal lymphoma accounting for 2.2% all lymphomas. B cell lymphomas are more common than T types. The most subtype Diffuse Large Cell Lymphoma. very challenging to diagnose as it has nonspecific clinical and radiological features. We report a rare case primary in 20-year-old female. It was misdiagnosed abscess on ultrasound suppurative mastitis fine needle asp...

Introduction: Central mucoepidermoid carcinoma (CMEC) is a rare primary intraosseous bony lesion. The mandible is more commonly affected than the maxilla. CMEC is frequently misdiagnosed radiographically and clinically as a benign odontogenic tumor or cyst. Case Presentation: We present a rare case with a secondary malignant neoplasm. A male patient was initially diagnosed with B-cell non-Hodg...

primary pancreatic lymphoma is a rare extranodal manifestation of any histopathologic subtype of b cell non-hodgkin's lymphoma that predominantly involves the pancreas. it comprises less than 0.2% of pancreatic malignancies and less than 0.7% of non-hodgkin's lymphomas. this lymphoma is almost never suspected clinically. it is usually diagnosed by surgical exploration for suspected ad...