Regulation of cell proliferation by thyroid hormone (TH) has been demonstrated, but the effect of THs and the mechanisms involved in lymphocyte activity have not been elucidated. Differential expression of PKC isoenzymes and high nitric oxide synthase (NOS) activity have been described in tumor T lymphocytes. We have analyzed the direct actions of TH on normal T lymphocytes and BW5147 T lymphom...

objective: since colposcopy biopsy test plays a significant role in the evaluation of cervix, especially in patients with an abnormal result of pap smear test, therefore, this research study was conducted to compare the results of pap smear and colposcopy directed punch biopsy tests at firoozgar and akbarabady hospitals from 2001 to 2003. materials and methods: this cross-sectional study was ca...

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...

We report a case of esophageal extranasal NK/T cell lymphoma with biphasic morphologic features revealed by a deep large piecemeal biopsy. A 40-year-old man present with pharyngalgia, dysphagia, recurrent fever, and 5-kg weight loss for 8 months. Endoscopy demonstrated progressing longitudinal ulcers and mucosal bridges along the esophagus. The first and second biopsies obtained superficial muc...

Marneros and colleagues have described multiple skin erosions in a patient receiving pralatrexate, a novel inhibitor of dihydrofolate reductase, for the treatment of adult T-cell lymphoma/leukemia (ATLL).1 These skin erosions were not due to the toxicity of the drug on keratinocytes but rather to the apoptosis of intra-epidermal atypical T cells as evidenced by the selective erosions on pre-exi...

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...

We observed two sisters with ataxia telangiectasia, one of whom developed an atypical subacute lymphocytic leukemia characterized by atypical lymphocytes and absence of palpable lymphadenopathy or hepatosplenomegaly. The lack of organomegaly in this patient may have been due to the underlying ataxia telangiectasia, which was associated with lymphoid hypoplasia. Cytogenetic studies showed a mark...

Infectious mononucleosis (IM) due to all causes is characterized by atypical lymphocytosis. We sought to compare hematologic parameters of infectious mononucleosis due to Epstein-Barr virus (EBV) infection (heterophile antibody (HA) positive) with mononucleosis due to other causes. Mono-Latex Slide Agglutination Test results and complete blood counts (CBC) of 147 patients with mononucleosis wer...

T HIS REPORT illustrates a dynamic or progressive relationship between a lymphoproliferative disorder associated with hypogammaglobulinemia, and myelomatosis indicated by serum protein analysis. A middle-aged man was hospitalized for hemoglobinuria and anemia requiring multiple transfusions. Later, hypogammaglobulinemia was observed. In blood, erythrocytes were normochromic, leukocyte and plate...