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Tenosynovial Giant Cell Tumor in an Infant
Shawhin Shahriari1, Ashley Ederle2, James Botros3
1Department of Surgery, Division of Plastic, Reconstructive, Hand, and Burn Surgery.
Insights
A rare infant tumor, tenosynovial giant cell tumor (TGCT), diffuse type, was found in the temporalis muscle. This extracranial mass was successfully treated with surgical excision in a 16-month-old child.
Area of Science:
- Pediatric Oncology
- Surgical Pathology
- Head and Neck Surgery
Background:
- Tenosynovial giant cell tumor (TGCT), diffuse type, is a rare neoplastic proliferation of joints and tendons.
- Extracranial presentations of TGCT are uncommon, particularly in infants.
- Malignant-appearing extracranial masses in infants require prompt diagnosis and management.
Abstract:
In this report, the authors describe a child presenting at 6 months old with a rapidly expanding extracranial left temporal mass concerning for malignancy. The mass was successfully treated at 16 months with radical surgical excision. The patient was found to have a tenosynovial giant cell tumor, diffuse type, completely encased by the temporalis muscle. To our knowledge, this is the first report of a case of diffuse type tenosynovial giant cell tumor in the temporalis muscle, without articular involvement, presenting in an infant.
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