title: Nodular fasciitis with cortical erosion of the hand.
abstract: Nodular fasciitis is a benign, reactive myofibroblastic tumor that is often mistaken for a sarcoma because of its histological appearance and rapid growth. Involvement of a finger is extremely rare. We report a case of nodular fasciitis of the thumb, accompanied by bone erosion. Magnetic resonance findings suggested the possibility of a malignancy, which could have led to misdiagnosis as a malignant soft tissue sarcoma. Instead, the lesion was treated by excisional biopsy, which confirmed nodular fasciitis. There has been no evidence of local recurrence at recent follow-up, 1 year after surgery. This case illustrates that, to avoid unnecessarily aggressive surgery, nodular fasciitis must be included in the differential diagnosis for any finger lesion that resembles a sarcoma, even if bone erosion is present.
authors.affiliation: Department of Orthopaedic Surgery, Gyeongsang National University Hosptial, Gyeongsang National University School of Medicine, Jinju, Korea.
authors.forename: Jin Sung
authors.initials: JS
authors.lastname: Park
authors.forename: Hyung Bin
authors.initials: HB
authors.lastname: Park
authors.forename: Jong-Sil
authors.initials: JS
authors.lastname: Lee
authors.forename: Jae-Boem
authors.initials: JB
authors.lastname: Na
mesh_terms: D000328:Adult; D001706:Biopsy; D003937:Diagnosis, Differential; D005208:Fasciitis / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D050278:Finger Phalanges / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D011859:Radiography; D012509:Sarcoma / Q000175:diagnosis*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis*; D013933:Thumb / Q000473:pathology* / Q000601:surgery