Chondroblastoma of the temporal bone.
Miyako Hatano1, Giuseppe De Donato, Maurizio Falcioni
1Department of Otolaryngology-Head and Neck Surgery, Division of Neuroscience, Kanazawa University Graduate School of Medical Science, Kanazawa, 13-1 Takaramachi, Ishikawa, Japan. miyakohatano@gmail.com
Acta Oto-Laryngologica
|April 21, 2011
Summary
Chondroblastomas are rare, aggressive tumors originating from cartilage cells. Surgical removal offers a favorable outcome for temporal bone chondroblastomas, even when involving the temporomandibular joint.
Area of Science:
- Oncology
- Orthopedics
- Otolaryngology
Background:
- Chondroblastomas are rare, destructive tumors originating from immature cartilage cells.
- Their occurrence in the temporal bone and skull base is exceptionally uncommon, with limited documented cases.
Observation:
- A 67-year-old woman presented with symptoms including mixed hearing loss, an external auditory canal mass, otalgia, and temporomandibular joint (TMJ) pain.
- Imaging revealed a mass involving the TMJ, infratemporal fossa, and pterygopalatine fossa.
Findings:
- The patient underwent successful gross total tumor removal via an infratemporal fossa approach.
- Post-operative follow-up showed no recurrence or residual tumor for over 7.5 years, with no complications like facial nerve paralysis.
Implications:
- Temporal bone chondroblastomas, though rare and aggressive, demonstrate favorable outcomes with appropriate surgical management.
- Tumor involvement of the temporomandibular joint (TMJ) may significantly impact long-term prognosis and recurrence risk, necessitating careful surgical consideration.
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