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Li-Fraumeni syndrome presenting with temporomandibular chondroblastic osteosarcoma following recurrent glioma

Sujeeth Kumar Shetty, Sonakshi Prakash, Devika Maya Krishna

BMJ Case Reports | Sep 1, 2026

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The case underscores the need for germline testing in young patients with multiple primary malignancies and adherence to oncological principles despite challenging anatomy.

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A man in his 20s with recurrent glioma developed rapid-onset trismus and left temporomandibular swelling. Imaging revealed condylar destruction with a mineralised mass. Initial biopsy suggested chondroblastic osteosarcoma; germline testing confirmed Li-Fraumeni syndrome with a pathogenic TP53 variant. He underwent segmental resection with temporomandibular joint disarticulation, facial-nerve sacrifice and vascularised free fibular flap reconstruction. The case underscores the need for germline testing in young patients with multiple primary malignancies and adherence to oncological principles despite challenging anatomy.

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Authors

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Sujeeth Kumar Shetty

first | JSS Dental College and Hospital | ORCID 0000-0002-8163-3904

Sonakshi Prakash

middle | JSS Dental College and Hospital | ORCID 0009-0003-2908-6290

Devika Maya Krishna

last | JSS Dental College and Hospital

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BibTeX

@article{Shetty2026Fraumeni,
  title = {Li-Fraumeni syndrome presenting with temporomandibular chondroblastic osteosarcoma following recurrent glioma},
  author = {Sujeeth Kumar Shetty and Sonakshi Prakash and Devika Maya Krishna},
  journal = {BMJ Case Reports},
  year = {2026},
  doi = {10.1136/bcr-2026-273397},
  url = {https://doi.org/10.1136/bcr-2026-273397}
}

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