Fibro-osseous pseudotumor of the digit: a challenging case involving the distal interphalangeal joint and flexor tendon.
Hyo Bin Yoon, Chang Ho Kang, Kyung-Sik Ahn et al.
✦ AI-curated · Sources linked
Case in brief
A 22-year-old male presented with a subcutaneous mass on the distal phalanx, which was surgically confirmed as a fibro-osseous pseudotumor of the digit (FOPD). Imaging revealed intralesional ossification and atypical features, including involvement of the distal interphalangeal joint and adjacent cortical erosion. The case highlights the importance of accurate imaging to avoid misdiagnosis and unnecessary procedures.
What made this case unusual
The case featured atypical involvement of the distal interphalangeal joint and flexor tendon adhesion, complicating the radiologic interpretation and raising concerns for malignancy.
Diagnostic / clinical pearl
Clinicians should be aware of both classic and atypical imaging features of fibro-osseous pseudotumor of the digit to prevent misdiagnosis as malignancy.
Why it matters
This case underscores the necessity of precise preoperative imaging to differentiate FOPD from other conditions, particularly given the potential for unnecessary surgical interventions.