title: Glomeruloid haemangioma is not always associated with POEMS syndrome.
abstract: Glomeruloid haemangioma is considered a specific marker of POEMS (polyneuropathy, organomegaly, endocrinopathy, M-protein and skin changes) syndrome and it is usually but not always associated with multicentric Castleman's disease. We report a 78-year-old man who presented with a single, red-violet soft nodule with superficial telangiectases on the scalp. Histopathologically, the lesion consisted of lobules of coiled aggregated capillaries that involved the lumina of dilated vascular structures, mimicking renal glomeruli. A collagenous stroma separated the capillary lobules, and eosinophilic, periodic-acid-Schiff positive globules of varying sizes and shapes were seen within the cytoplasm of endothelial cells. Immunohistochemical studies with antibodies against IgA and IgG, and against the kappa and lambda light chains of immunoglobulins showed immunoreactivity within the eosinophilic globules. Results of complete blood count, liver, renal and thyroid function tests, fasting blood sugar measurement, serum levels of oestradiol, testosterone, prolactin and cortisol, serum protein electrophoresis, immunoelectrophoresis and immunofixation yielded normal or negative results. No Bence-Jones proteinuria was found in a sample from a 24-h urine collection. To our knowledge, only two cases of glomeruloid haemangioma have been previously reported in patients without POEMS syndrome. We describe the third case of glomeruloid haemangioma in a patient without features of POEMS syndrome.
authors.affiliation: Department of Dermatology, Fundación Jiménez Díaz, Universidad Autónoma Madrid, Spain.
authors.forename: E
authors.initials: E
authors.lastname: González-Guerra
authors.forename: M R
authors.initials: MR
authors.lastname: Haro
authors.forename: M C
authors.initials: MC
authors.lastname: Fariña
authors.forename: L
authors.initials: L
authors.lastname: Martín
authors.forename: L
authors.initials: L
authors.lastname: Manzarbeitia
authors.forename: L
authors.initials: L
authors.lastname: Requena
mesh_terms: D000368:Aged; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000473:pathology; D006391:Hemangioma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008297:Male; D016878:POEMS Syndrome / Q000175:diagnosis*; D012535:Scalp; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology