A technique originally described for the isolation of Friend leukaemia virus envelope polypeptides [1] yields equivalent structures from Moloney leukaemia. AKR and BALB/c xenotropic virus as well as feline leukaemia virus. The envelope polypeptides are obtained as micellar protein complexes, named rosettes. Rosettes of the five mammalian type-C viruses examined are indistinguishable by electron...

Nurse cells (NCs) are detected in lymph-epithelial organs. The aim was to test the hypothesis that NCs are among tonsil epithelium (group 1), vagina epithelium (2) and pleural fluid (3) and to define the diagnostic value of the palatine tonsil (PT) NCs in leukaemia. NCs were found in patients of group 1 in leukaemia, in group 2 – in dysplasia and cancer, in group 3 – in AIDS; NCs were not obtai...

Acute promyelocytic leukaemia (APML) is a biologically and clinically distinct variant of AML, currently classified as acute myeloid leukaemia with recurrent cytogenetic anomalies t(15;17) (q22;q21), promyelocytic leukaemia-retinoic acid receptor alpha, diagnosis regardless of blast count in the World Health Organization classification system. It is one of the curable malignancies, has a unique...

A total of 398 cases of B cell lymphoproliferative disease were phenotypically characterised by membrane mouse red blood cell (MRBC) receptor, surface immunoglobulin, common acute lymphoblastic leukaemia (CALLA), and FMC7 and T1 monoclonal antibody studies. Relations between chronic lymphocytic leukaemia (CLL), prolymphocytic leukaemia (PLL), and "prolymphocytoid" CLL variants were examined wit...

Three studies have suggested an association between leukaemia and Iymphomas and exposure to styrene. ln a mortality analysis of2904 US workers exposed to low or moderate levels of styrene (not exceeding 100 ppm (420 mgj m3)), six cases ofleukaemia (3.4 expected; standardized mortality ratio (SMR), 176) and seven cases of Iymphoma (5.3 expected; SMR, 132) were observed. When the incidence was an...

A case of coexistent acute myeloid leukaemia and sarcoidosis is reported. This was complicated by recurrent pulmonary haemorrhage during reinduction and consolidation chemotherapy. A review of published papers on malignancy and sarcoidosis, in particular acute leukaemia is given. The outcome of most cases of acute leukaemia and sarcoidosis is poor with respiratory complications a frequent cause...

Fifty-three patients with chronic myeloid leukaemia (CML) were included in this study (25 females & 28 males) and followed-up from October 2003 till October 2005 included for the evidence of acute transformation. Twenty-one patients (39.6%) transformed to acute phase , 16 patients(76.1%) of them transformed during the first 4 years of diagnosis. Fifteen patients (71.4 %) ) transformed to acute ...

ABSTRACT Secondary acute lymphoblastic leukaemia (sALL), defined as acute lymphoblastic leukaemia following another malignancy, irrespective of previous treatment, is a rare disease, and its biological characteristics have not been accurately described. We report the case of a 24-year old patient followed for Hodgkin's lymphoma at our clinic, who develops and is diagnosed, less than a year afte...

Although leukaemic infiltration of the pericardium is frequently observed at post-mortem, clinically evident cardiac tamponade is rare. Two cases of cardiac tamponade complicating leukaemia are presented. One patient had cardiac tamponade as the initial presentation of acute lymphoblastic leukaemia and experienced complete resolution of the pericardial effusion within 6 days after chemotherapy ...

Chloroma, also called Granulocytic Sarcoma or Myeloid Sarcoma, is a rare malignant extra-medullary neoplasm of myeloid precursor cells. It is usually associated with myelo-proliferative disorders but its appearance may precede the onset of leukaemia. Chloroma may be found in several extracranial sites. Involvement of the head and neck region is uncommon. Differential diagnosis is often difficul...