Giant cell tumor of tendon sheath arising in the toe

Elise Occhipinti1, Stephen D Heinrich, Randall Craver

  • 1Department of Pathology, Louisiana State Uiversity Health Sciences Center, New Orland, Louisiana, USA.

Insights

Giant cell tumors of the tendon sheath are rare in children but share features with adult cases. This study highlights lower extremity involvement in pediatric patients with these benign soft tissue tumors.

Area of Science:

  • Orthopedics
  • Pediatric Oncology
  • Skeletal System Neoplasms

Background:

  • Giant cell tumor of the tendon sheath (GCTTS), also known as nodular tenosynovial giant cell tumor, is a common benign soft tissue tumor.
  • GCTTS typically affects middle-aged women and most frequently occurs in the interphalangeal joints of the fingers.

Observation:

  • This report details two pediatric cases of GCTTS affecting the toes in a 12-year-old boy and a 6-year-old girl.
  • The tumor in the 12-year-old boy exhibited the characteristic cytogenetic translocation t(1;2)(p13;q37), previously identified in adult GCTTS.

Findings:

  • Pediatric GCTTS cases demonstrate histological and cytogenetic similarities to adult GCTTS.
  • A potential predilection for lower extremity involvement in pediatric GCTTS is suggested by these cases.

Implications:

  • These findings expand the understanding of GCTTS occurrence in pediatric populations.
  • Recognizing lower extremity GCTTS in children is crucial for accurate diagnosis and management, despite its rarity.