A Rare Bone Erosion due to Fibroma of the Tendon Sheath

Yuto Minagawa; Tomohiro Yasuda; Koji Kanzaki; Atsushi Kusaba; Nobuyuki Ohike; Katsunori Inagaki

doi:10.13107/jocr.2022.v12.i01.2596

A Rare Bone Erosion due to Fibroma of the Tendon Sheath

J Orthop Case Rep. 2022 Jan;12(1):14-17. doi: 10.13107/jocr.2022.v12.i01.2596.

Authors

Yuto Minagawa¹, Tomohiro Yasuda¹, Koji Kanzaki¹, Atsushi Kusaba², Nobuyuki Ohike³, Katsunori Inagaki⁴

Affiliations

¹ Department of Orthopaedic Surgery, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
² Department of Rheumatology, Zama General Hospital, Kanagawa, Japan.
³ Department of Pathology, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.
⁴ Department of Orthopaedic Surgery, Showa University School of Medicine, Tokyo, Japan.

Abstract

Introduction: Fibroma of the tendon sheath (FTS) is a soft-tissue tumor strongly attaches to the tendon sheath. The most common tumor which causes bone erosion is giant cell tumor of the tendon sheath while the erosion is quite rarely caused by FTS.

Case report: A 50-year-old housewife presented a swelling around the A1 pulley of the right third finger as well as bone erosion and a trigger finger. Against our preoperative suspect as GTTS, the pathological findings showed FTS. The snapping disappeared after the surgery. At 2.5 years postoperatively, we found no recurrence.

Conclusion: FTS can be added to one of the differential diagnoses for tumor presenting bone erosion in fingers though our case is rare.

Keywords: Fibroma of tendon sheath; bone erosion; trigger finger.

Publication types

Case Reports