What causes endothelial hyperplasia?

Intravascular papillary endothelial hyperplasia is a benign lesion of vascular origin. It is caused by excessive proliferation of endothelial cells in vascular malformations or normal blood vessels.

What causes a Masson’s tumor?

Masson’s tumour, also known as intravascular papillary endothelial hyperplasia, is a rare non-neoplastic lesion of vascular origin, caused by an excessive reactive proliferation of endothelial cells in normal blood vessels or vascular malformations.

What is Masson’s tumor?

Intravascular papillary endothelial hyperplasia (IPEH) or Masson’s tumor is a rare benign entity commonly found on the head, neck, and upper extremities. It usually arises within a blood vessel but is considered to be a nonneoplastic reactive process often associated with vascular injury.

What is reactive Angioendotheliomatosis?

Reactive angioendotheliomatosis (RAE) is a rare condition characterized by cutaneous vascular proliferation that usually occurs in patients with diverse types of coexistent systemic disease.

What is a Masson tumor?

What are Mason tumors?

Masson tumor (intravascular papillary endothelial hyperplasia) is a rare proliferation of endothelial cells within the wall of a vessel, often thought to represent an aberrant resolution of a thrombosis.

What is a Hemangioendothelioma?

“The term Hemangioendothelioma describes several types of vascular neosplasms and includes both non-cancerous (benign) and cancerous (malignant) growths. The term has also been applied to those that show “”borderline”” behavior, intermediate between entirely benign hemangiomas and highly malignant angiosarcomas.

What is Glomeruloid hemangioma?

Glomeruloid hemangiomas represent vascular tumors, which present as small, firm, red-to-violaceous, dome-shaped papules, papulonodules, subcutaneous bluish compressible tumors, wine-red sessile or pedunculated papules, or lesions with cerebriform morphology.

What is diffuse dermal Angiomatosis?

Diffuse dermal angiomatosis (DDA) is a rare skin condition that commonly presents as erythematous, violaceous, indurated plaques on the lower extremities of patients with severe peripheral vascular disease. The lesions are often ulcerated and tender.