diffuse large b cell lymphoma is the most common type of non-hodgkin's lymphoma, representing nearly one-third of all cases. any organ can be involved, making a diagnostic biopsy imperative. when the lungs are the involved organs, it is called primary pulmonary lymphoma (ppl). hereby, we present a case of primary pulmonary lymphoma (ppl) that demonstrated a single large mass on chest ct and had...

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...

Primary cutaneous large B-cell lymphoma leg type is a rare andaggressive neoplasm as defined by the recently updated WorldHealth Organization - European Organization for Research andTreatment of Cancer. We report a case of an 80-year-old manwith multiple cutaneous lesions. Here, we review the availableliterature and summarize clinical features and management ofthis type of cutaneous B-cell lymp...

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.

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...

old world cutaneous leishmaniasis (owcl) usually causes a single, self-healing and uncomplicated lesion mainly on the exposed area of body. this report presents four cases of owcl from iran that misdiagnosed with sarcoidosis, lymphoma, and acne agminata. two out of four patients showed a history of purplish red plaques for at least 5 years who misdiagnosed as sarcoidosis because of histological...

cutaneous hodgkin’s lymphoma is a rare disease (0.5% to 3.4%) which tends to be in the setting of an advanced disease and has a poor prognosis. treatment of patients with cutaneous involvement of hodgkin’s lymphoma is according to dissemination of disease (systemic or localized therapy). the majority of data in this context are based on individual case reports or literature reviews. we have rep...

BACKGROUND Several epidemiological studies have suggested an association between cutaneous melanoma and non-Hodgkin's lymphoma. METHODS We pooled the data from seven cohort studies and calculated the risk of secondary occurrence of cutaneous melanoma after non-Hodgkin's lymphoma, and of non-Hodgkin's lymphoma subsequent to the occurrence of cutaneous melanoma. RESULTS There were 137 612 pat...

Cutaneous T-cell lymphoma describes a heterogeneous group of neoplasms of skin homing T cells that vary considerably in clinical presentation, histologic appearance, immunophenotype, and prognosis. This paper addresses the cutaneous T-cell lymphoma in Asians with respect to clinical-epidemiologic and histopathological features. Compared with Western countries, Asia usually has higher rates of c...