Glomangiomas (glomus tumours) are uncommon, and in most cases are benign perivascular tumours, usually located in the dermis of the extremities, especially in the subungual region of the fingers. They also occur in other organs and in other regions of the body. Histogenetically, they are derived from modified smooth muscle cells of the glomus apparatus, which is associated with temperature regulation. These tumours are composed of capillaries, sometimes of dilated endothelial bigger vessels surrounded by nests of uniform, cytoplasm-rich cells with isomorphic round or ovoid nuclei (glomus cells). They also contain a variable amount of smooth muscle tissue. Three different …