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...

Neochamaejasmin A is an individual compound isolated from Stellera chamaejasme and exerts antitumor effects on several types of human cancer cells. However, the effect neochamaejasmin osteosarcoma cells has not yet been investigated. The main aim was to detect in vitro MG-63 were treated with different concentrations (20, 40, 80 μg/ml). Cell viability detected by 3-(4,5-dimethylthiazol-2-yl)-2,...

a 45-year-old female patient with a diagnosis of ulcerative colitis complicated with composite lymphoma in the spleen and para-aortic lymph node presented with a one-month history of malaise, weakness and fatigue. only mesalamine kept ulcerative colitis under control. in physical examination, splenomegaly was revealed and pancytopenia was obtained from laboratory data. computed tomography scan ...

a case of primary malignant non-hodgkin's lymphoma of the breast is reported. this is the first well-documented case of breast lymphoma in our institution and also in iran. the diagnosis of primary breast lymphoma requires the presence of lymphomatous infiltration in close ass, tissue in patients with neither previous lymphoma nor concurrent lymphoma in another site. there is no definite c...

subcutaneous panniculitis-like t-cell lymphoma (sptcl) is an infrequent cytotoxic t-cell lymphoma of the skin with a unique immunophenotypic profile. here we describe this lymphoma in a 30-year-old iranian woman. she presented with periorbital edema, mandibular swelling with edematous areas on her face and two small lymph nodes (6-7mm) in the cervical area. histopathological findings revealed l...

Of 187 specimens of non-Hodgkin's lymphoma and four hyperplastic lymphoid proliferations with clonal chromosome abnormalities ascertained serially over a 4 1/2-year period, nine cases with t(3;22)(q27;q11) were identified. Seven of the lymphomas were diffuse tumors, predominantly large cell type. The eighth tumor, a follicular small cleaved cell lymphoma, exhibited a t(3;22) and a t(14;18)(q32;...

Burkitt Lymphoma (BL) is a high grade Non-Hodgkins Lymphoma (NHL) that is characterized histopathologically by a mass of diffuse small non-cleaved B cell lymphocytes [1,2]. It is a highly aggressive lymphoma that frequently presents in extranodal sites with a very high proliferation rate. It is the fastest growing tumour, characterized by explosive growth with a doubling time of 24 hours. BL is...

Mantle cell lymphoma is an aggressive type of B-cell non-Hodgkin's lymphoma that originates from small to medium sized lymphocytes located in the mantle zone of the lymph node. The gastrointestinal tract is the predominant site of extranodal involvement in the form of multiple lymphomatous polyposis. Multiple lymphomatous polyposis due to mantle cell lymphoma presenting with intussusception is ...

primary cutaneous anaplastic large cell lymphoma is a t-cell malignancy with atypical cd30 positive lymphocytes. pseudoepitheliomatous hyperplasia is an uncommon finding in primary cutaneous anaplastic large cell lymphoma, and may mimic squamous cell carcinoma as pseudomalignancy. careful attention of a pathologist to correct diagnosis of pseudoepitheliomatous hyperplasia and its underlying cau...

Introduction: Follicular Lymphoma (FL) is a B-cell neoplasm arising from the germinal center. Gastrointestinal FL rare case, accounting for less than 4% of all primary lymphoma gastrointestinal tract. Duodenal-type (DTFL) was included in an entity intestinal FL. However, 2017 World Health Organization (WHO) Classification, this specific variant called DTFL. In article, we report case DTFL 56-ye...