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Laryngeal true malignant mixed tumor.
Francesco Stomeo1, Paolo Cossu Rocca, Corrado Bozzo
1Department of Otorhinolaryngology-Head and Neck Surgery, University of Ferrara, 44100 Ferrara, Italy. fstomeo@libero.it
Head & Neck
|October 31, 2008
Summary
True malignant mixed tumor, a rare laryngeal cancer, was successfully treated with surgery in a 65-year-old woman. This case supports the myoepithelial precursor cell origin theory for this rare neoplasm.
Area of Science:
- Oncology
- Pathology
- Surgical Oncology
Background:
- True malignant mixed tumor (carcinosarcoma) is an extremely rare salivary gland neoplasm.
- Few cases of laryngeal carcinosarcoma have been previously reported.
Observation:
- A case of true malignant mixed tumor in the larynx of a 65-year-old woman is presented.
- Histology revealed mixed neoplastic glandular, spindle, and chondroid tissues.
- Immunohistochemistry showed myoepithelial marker expression in glandular and spindle cell components.
Findings:
- The laryngeal neoplasm exhibited characteristics of a true malignant mixed tumor.
- Immunohistochemical analysis suggested a myoepithelial cell origin with divergent differentiation.
- Successful surgical treatment resulted in no evidence of recurrence at 5 years.
Implications:
- This case supports the hypothesis of totipotent myoepithelial precursor cell origin for laryngeal carcinosarcoma.
- Despite a historically poor prognosis, successful surgical management offers a favorable outcome.
- Further research into the pathogenesis and treatment of this rare laryngeal malignancy is warranted.
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