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The blood pools under the nail, giving a reddish, brownish, blueish, or grey/blackish discoloration. The blood puts pressure to the nailbed causing pain which can be throbbing in quality and disappears when the pressure on the nail bed is relieved. [2] Subungual hematomas typically heal without incident, though infection may occur.
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]
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]
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.
Hormones and certain medications can also make pigmented bands in the nails, but be especially watchful for nail cancer symptoms, such as a brown or dark stripe that goes from the cuticle out to ...
[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 ...
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.