Introduction: This study is aimed to assess the prevalence and characteristics of head and neck lymphoma in a defined group of an Iranian population.   Materials and Methods: In this retrospective study, 126,450 biopsy reports from two referral Pathology Departments, (Tehran, the capital of Iran) were evaluated. In cases with head and neck lymphoma, other variables such as age, sex, specific lo...

most bladder tumors are epithelial in origin. nonepithelial cancers are rarely located in the bladder. sarcomas are the most common malignancies among nonepithelial cancers. primary bladder lymphoma is rare and mostly low grade. here, we have reported a case of diffuse large cell lymphoma of the bladder. the patient, a 64-year-old man, had urinary frequency for 18 months. abdominal sonography i...

background: diffuse large b-cell lymphoma (dlbcl) is an aggressive malignancy of mature b lymphocytes. it is known as a heterogeneous disease with variable therapeutic responses and alternative therapies. morphological and immunophenotypical evaluation of the biopsy specimens can help diagnose dlbcl. methods: in the current study, 44 patients were chosen from shaheed sadoghi hospital (2010–2013...

introduction: primary gastric lymphoma (pgl) is a rare tumor, whose differential diagnosis may become complicated without precise immunohistochemistry (ihc) and genetic analysis. case presentation: a 33-year-old woman presented with gastric cancer and had undergone gastrectomy without precise ihc and staging in another center. inappropriate ihc after surgery showed diffuse large b-cell lymphoma...

background plasmablastic lymphoma (pbl) is a relatively new entity, classified by who as a rare variant of diffuse large b cell lymphoma. the present case report introduces a 17 year old girl with chronic diarrhea, abdominal pain, intra-abdominal venous thromboses, ascites, mesenteric lymphadenopathies and small intestinal polyposis, the pathologic and immunohistochemistric examinations of the ...

The authors describe a case of histiocyte-rich B-cell lymphoma (HR-BCL), a variant of diffuse large B-cell lymphoma, in a 51-year-old man. The patient presented with large axillary lymphadenopathy. Histopathologic and immunohistochemical examination of lymph node biopsy revealed diffuse effacement of the lymph node architecture by reactive histiocytes and neoplastic CD20 positive B cells. ...

Primary cutaneous CD30+ T cell lymphoma is rare lymphoma originally in and confined to the skin. These lymphomas usually present as a large solitary and often ulcerated nodule. Its prognosis is a good and has a good response to radiotherapy. We report a 34- year- old man who had primary cutaneous CD30+T cell lymphoma on his face, which presented as an ulcerated nodule.

background: breast implant associated anaplastic large t- cell lymphoma is a rare type of non-hodgkin lymphoma, with a reported incidence of 0.3% per 100,000 women with breast prosthesis per year. it presents most commonly as a peri-implant seroma, but may also present as a capsular mass, tumor erosion through skin, in a regional lymph node, or found incidentally during revision surgery. case p...

intravascular large b-cell lymphoma (ivlbcl) is a rare and aggressive subtype of systemic extranodal non-hodgkin diffuse large b-cell lymphoma (dlbcl). we report a rare case of ivlbcl who showed diffuse 18f-fluorodeoxyglucose (fdg) uptake in the lung in fdg-positron emission tomography/computed tomography (pet/ct) without respiratory symptoms or chest ct abnormalities. serum biochemical studies...

malignant lymphoma may occur in the oral cavity and oropharynx, but is most commonly located in waldeyer's ring, particularly in the palatine and lingual tonsil. the occurrence of malignant lymphoma in the tongue is very rare. clinical features are nonspecific ulcerative lesions that do not heal. in the literature, the majority of cases are non-hodgkin’s lymphoma, diffuse large b cell type; how...