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Orthopaedics · Hand: glomus tumour
Sample itemA woman has years of severe pain under the fingernail triggered by cold and light touch, with a small bluish spot under the nail. Which diagnosis and treatment are appropriate?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Glomus tumour, treated by surgical excision
Glomus tumour is a benign vascular tumour of the glomus body in the nail bed, presenting with intense localised pain, cold sensitivity and a bluish discolouration. Love pin test and MRI support the diagnosis. Complete excision relieves the pain.
Option by option
A. Glomus tumour, treated by surgical excision (correct)
Correct. Cold-sensitive subungual pain with a blue spot indicates a glomus tumour.
B. Subungual exostosis, treated with antibiotics
A subungual exostosis is a bony lump and not cold sensitive.
C. Felon, treated by splinting
A felon is an acute pulp infection.
D. Mucous cyst, treated by observation
A mucous cyst lies over the distal interphalangeal joint and is not painful in this way.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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