title: [Multiple extra-bone sites of Kahler's disease].
abstract: The authors report the case of an IgA secreting multiple myeloma which, after a rapid initial remission, relapsed with skin, thyroid, testis and lung metastases without bone recurrence. A review of the medical literature on this subject underlines the poorly differentiated microscopic appearance and the low secretion of paraprotein of these extraosseous plasmacytic tumours which have a poor prognosis due to their increased malignancy.
mesh_terms: D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000473:pathology / Q000556:secondary*; D012878:Skin Neoplasms / Q000556:secondary; D013736:Testicular Neoplasms / Q000556:secondary; D013964:Thyroid Neoplasms / Q000556:secondary
vernacular_title: Localisations extra-osseuses multiples au cours d'une maladie de Kahler.