<unk> s are usually solitary and small lesions. The vast majority are found in the hand, wrist, foot, and under the fingernails. They are often painful, and the pain is reproduced when the lesion is placed in cold water. Multiple tumors are less likely to be painful. These tumors tend to have a bluish discoloration, although a whitish appearance may also be noted. Elevation of the nail bed can occur. In rare cases, the tumors may present in other body areas, such as the gastric antrum or glans penis. Treatment is essentially the same. Malignant<unk> s, or glomangiosarcomas, are extremely rare and usually represent a locally infiltrative malignancy. However, metastases do occur and are usually fatal.
Glomus tumor
Gastrinoma
Pineocytoma
Gangliocytic paraganglioma
Brown tumor
Melanocytoma
Granular cell tumor
Ganglioneuroma