Résumé
Adult T cell lymphoma/leukemia is a peripheral T-cell neoplasm caused by human T-cell lymphotrophic virus-1, affects mostly adults with systemic involvement and poor prognosis. Diagnosis of adult T-Cell leukemia/Lymphoma is challenging. The clinico-pathologic and immuno-phenotypic features of the three cases will be presented.
Sujets)
Adulte , Cellules sanguines/cytologie , Femelle , Infections à HTLV-I/diagnostic , Infections à HTLV-I/anatomopathologie , Histocytochimie , Virus T-lymphotrope humain de type 1/isolement et purification , Humains , Immunophénotypage , Inde , Lymphome T/diagnostic , Lymphome T/anatomopathologie , Mâle , Microscopie , Adulte d'âge moyenRésumé
Rearrangements of the mixed lineage leukemia (MLL) gene at 11q23 commonly occur in infants with CALLA negative B lymphoblastic leukemia (B-ALL). Most often, these are detected by conventional karyotyping; however, fluorescent in-situ hybridization (FISH) with the help of a dual-color break-apart probe is used to identify cryptic translocations. When there is an MLL gene translocations the usual FISH signal pattern is 1 red-1 yellow fusion signal pattern We present a case of an infant with CALLA negative precursor B-ALL with a characteristic translocations t(4;11) (q21;q23),however,with an unusual MLL FISH signal pattern.
Sujets)
Humains , Hybridation fluorescente in situ/méthodes , Nourrisson , Mâle , Protéine de la leucémie myéloïde-lymphoïde/génétique , Leucémie-lymphome lymphoblastique à précurseurs B/diagnostic , Leucémie-lymphome lymphoblastique à précurseurs B/anatomopathologie , Translocation génétiqueRésumé
During a mitral valve replacement surgery in a girl of 22 years of age, it was accidentally discovered that the valve was destroyed due to a tumor and the histopathology and immunohistochemistry findings have proved it to be undifferentiated sarcoma. She was advised by the surgeon to go for chemotherapy. There was a delay of three months from the side of the patient to reach us and during that interval she has developed secondaries in the brain. This case is being presented here for its rarity.