title: A large thumb mass.
abstract: A 31-year-old man presented with a 5-year history of a spontaneously occurring soft tissue mass on the palmar aspect of his left non dominant thumb. Over 5 months he was having progressive difficulty flexing at the interphalangeal joint. Magnetic resonance imaging demonstrated an heterogeneously enhancing soft tissue mass likely to be either a peripheral fibromatosis or giant cell tumour of the flexor tendon (Figure 1). Intraoperatively a large neuroma in continuity with the ulnar digital nerve was found and debulked (Figure 2). The diagnosis was confirmed histologically.
authors.affiliation: ST6 Plastic and Reconstructive Surgery, Addenbrooke's Hospital, Cambridge University Hospital NHS Foundation Trust. as329@hotmail.com
authors.forename: Amit K
authors.initials: AK
authors.lastname: Shah
authors.forename: Rory
authors.initials: R
authors.lastname: Macnair
authors.forename: Andrea
authors.initials: A
authors.lastname: Figus
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D009463:Neuroma / Q000175:diagnosis* / Q000601:surgery; D013933:Thumb / Q000294:innervation* / Q000473:pathology; D020424:Ulnar Neuropathies / Q000175:diagnosis* / Q000601:surgery