Vulvar glomangioma: A case report and literature review.

GLMN is a gene that encodes a critical protein necessary for normal vascular development. Mutations of GLMN predispose individuals to development of glomangiomas, with nearly 100% penetrance by age 30. Glomangiomas are tumors of the glomus body, a thermoregulatory arterial-venous shunt composed of modified smooth muscle cells.