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A glomus tumor (also known as a "solitary glomus tumor" [1]) is a rare neoplasm arising from the glomus body and mainly found under the nail, on the fingertip or in the foot. [2]: 670 They account for less than 2% of all soft tissue tumors. [3] The majority of glomus tumors are benign, but they can also show malignant features. [4]
[1]: 792 There are various benign and malignant neoplasms that may occur in or overlying the nail matrix and in the nailbed, and symptoms may include pain, itching, and throbbing. [ 1 ] : 792 Benign tumors of the nails include verruca , pyogenic granuloma , fibromas , nevus cell nevi, myxoid cysts , angiofibromas (Koenen tumors), and epidermoid ...
Subungual exostosis is a type of non-cancerous bone tumor of the chondrogenic type, and consists of bone and cartilage. [2] It usually projects from the upper surface of the big toe underlying the nailbed, giving rise to a painful swelling that destroys the nail. [3] Subsequent ulceration and infection may occur. [3]
Dermatologist Lindsey Zubritsky is “begging” her 1.4 million TikTok followers to check their nails for a vertical line, which could indicate a subungual melanoma, a rare, but serious skin cancer.
A solitary keratoacanthoma (also known as "Subungual keratoacanthoma") is a benign, but rapidly growing, locally aggressive tumor which sometimes occur in the nail apparatus. [ 9 ] : 667, 764 [ 10 ] : 644
Koenen's tumor (KT), also commonly termed periungual angiofibroma, [1]: 668 is a subtype of the angiofibromas. [3] Angiofibromas are benign papule, nodule, and/or tumor lesions that are separated into various subtypes based primarily on the characteristic locations of their lesions.
Symptoms include thickness of the nail plate, transverse or longitudinal overcurvature, xanthonychia, and numerous splinter hemorrhages. The diagnosis of onychomatricoma is made based on clinical features, dermoscopy , and ultrasonography , and is confirmed by its histological features.
Cellular angiofibroma is usually a small, slow-growing tumor arising in the vulva-vaginal areas of adult woman and the inguinal-scrotal areas of adult men although some of these tumors, especially in men, can grow up to 25 cm. Affected men are usually older (7th decade) than women (5th decade). [25]