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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A patient presents with pain and cold insensitivity at the fingertip. There is a bluish discoloration under the nail. The most likely diagnosis is?
assistant
The correct answer is  Ans. B. Glomus tumorThe giveaway is the bluish colour under the nail. This is typical for the glomus tumor; this is a rare benign neoplasm arising from the glomus body (a neuromyoarterial apparatus). It can be excised by lifting the nail up (if under the nail plate) with repair of the nail bed afterwards.