We report here on a rare case of BCR-ABL1-negative atypical chronic myeloid leukemia with a t(9;22)(p24;q11.2)translocation and a BCR-JAK2 fusion gene, with resistance to the tyrosine kinase inhibitors imatinib and dasatinib.At two years of follow-up, the patient showed no hematologic response and was submitted to an allogeneic bonemarrow transplantation. Fifty-three days after the procedure, h...

BACKGROUND Exaggerated reaction to insect bites, mainly to mosquitoes, is infrequently described in patients with chronic lymphocytic leukemia. Skin lesions usually appear months to years after the diagnosis of leukemia and are unrelated to laboratory findings, disease course, or therapy. OBSERVATIONS We describe 8 patients with various hematologic disorders (chronic lymphocytic leukemia, acu...

Round cell tumors of the skin in the adult constitute one of the diagnostic challenges for histopathologists, because their differential diagnosis covers a broad spectrum of tumors of epithelial as well as non-epithelial origins. As the first step towards the correct diagnosis, immunohistochemical screening of the tumor sample by CD45 (leukocyte common antigen, LCA) antibody is thought to be us...

Advanced systemic mastocytosis (SM) is a rare myeloid neoplasm characterized by uncontrolled accumulation of neoplastic mast cells (MCs) in various organs with consecutive impairment of organ function, drug resistance, and a poor prognosis. Advanced SM may present as smoldering or slowly progressing neoplasm but may also present as rapidly progressing aggressive SM or even as MC leukemia. Appro...

Advanced systemic mastocytosis (SM) is a rare myeloid neoplasm characterized by uncontrolled accumulation of neoplastic mast cells (MCs) in various organs with consecutive impairment of organ function, drug resistance, and a poor prognosis. Advanced SM may present as smoldering or slowly progressing neoplasm but may also present as rapidly progressing aggressive SM or even as MC leukemia. Appro...

Fluoropyrimidines (FP) are the mainstay treatment of many neoplasms, especially gastrointestinal (GI) tract cancers. Its metabolism is guaranteed by enzyme dihydropyrimine dehydrogenase (DPD), which in turn encoded DPYD gene. DPD deficits carry an increased risk FP toxicity, such as stomatitis, diarrhoea, neutropenia and neurotoxicity, it affects about 3-9% Caucasian population. The aim this st...

background: cornus mas l, an olive-shaped red-colored single-seeded fruit, is used in traditional medicine in different parts of europe and asia. objectives: in the present study, 40 male wistar rats were randomly divided into five groups, and the effects of 21 days of intraperitoneally (ip) administration of 50, 200 and 400 mg/kg body weight of c. mas hydro-methanolic extract on the rats hemat...

Mast cell leukemia is a rare variant of advanced systemic mastocytosis characterized by at least 20% of mast cells in a bone marrow smear. We evaluated clinical and molecular characteristics of 28 patients with (n=20, 71%) or without an associated hematologic neoplasm. De novo mast cell leukemia was diagnosed in 16 of 28 (57%) patients and secondary mast cell leukemia evolving from other advanc...

as the data on the epidemiology and outcome of fungal infections in children with hematologic cancer are limited especially in iran, this study was aimed to delineate the epidemiologic features and outcome of fungal infections in this population. the medical records of all children with hematologic malignancies diagnosed with a fungal infection from 2005 to 2010 at a tertiary pediatric hospital...

Abstract Introduction Amyloid AL results from misfolding of immunoglobulin light chain (kappa or lambda) secreted by abnormal plasma cells such as in multiple myeloma. It is a rare, multisystemic disease with an estimated annual incidence rate 6 to 10 cases per million inhabitans Western countries. The prognosis this hematologic neoplasm guided the extent cardiac involvement; if untreated, surv...