4.1 Article

A Case of Oral Glomeruloid Hemangioma Without Systemic Conditions

Journal

CUREUS JOURNAL OF MEDICAL SCIENCE
Volume 14, Issue 1, Pages -

Publisher

CUREUS INC
DOI: 10.7759/cureus.21705

Keywords

nestin; cd146; stromal cell; glomeruloid hemangioma; oral cavity

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Glomeruloid hemangioma is a rare variant of hemangioma that is usually associated with POEMS syndrome. This case report presents a non-POEMS related glomeruloid hemangioma characterized by abnormal proliferation of endothelial and pericytic cells.
Glomeruloid hemangioma is a rare variant of hemangioma that is accompanied by polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin abnormalities (POEMS) syndrome and, rarely, by thrombocytopenia, anasarca, fever, reticulin fibrosis, and organomegaly (TAFRO) syndrome. This report presents the case of a 78-year-old male who presented with a hemorrhagic nodule on the tongue without any other systemic diseases. Microscopically, the lesion was a lobular proliferation extending from the lamina propria to muscular tissue. Some intravascular nodules with irregular vascular lumens closely resembled renal glomeruli. Each nodule consisted of plump endothelial and stromal cells that partially showed vacuolated cytoplasm containing eosinophilic and periodic acid-Schiff (PAS)-positive globules. Immunohistochemically, IgG-positive deposition was noted within CD31-positive cells. Many plump stromal cells were positive for CD31, CD146, nestin, and type IV collagen but not alpha-smooth muscle actin (alpha SMA). These results reflect the proliferation of immature endothelial cells and pericytes, which might characterize this unique lesion. Microscopically, this case revealed glomeruloid hemangioma without systemic conditions related to POEMS, and composed of an intravascular proliferation of immature endothelial and pericytic stromal cells.

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