Extramedullary plasmacytoma (EMP) is an uncommon plasma cell neoplasm results from plasma cell proliferation and consists of monoclonal plasmacytic infiltration, without bone marrow involvement and any other systemic characteristics of multiple myeloma. EMP accounts for 3% of all plasma cell neoplasms and approximately 80% to 90% of EMP involve submucosa of… (More)
All-trans retinoic acid (ATRA) induces complete remission in most cases of acute promyelocytic leukemia. Toxicity of ATRA has been shown to be mild, consisting of headache, dry skin, dermatitis, and gastrointestinal disorders. We describe a case of scrotal ulceration with ATRA use in a Moroccan patient, an occurrence that has been rarely reported in the… (More)
Here we prove some special cases of the following conjecture : that the sum of the Betti numbers of a 1-connected elliptic space is greater than the total rank of its homotopy groups. Our main tool is Sullivan's minimal model.