ArticleFrontiers in oncology2026
Early local recurrence of well-differentiated liposarcoma of the hypopharynx in a young adult: a case report and literature review.
Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Well-differentiated liposarcoma (WDLPS), also termed atypical lipomatous tumor, is a low-grade malignant adipocytic neoplasm characterized by indolent growth, limited metastatic potential, and a propensity for local recurrence. Primary WDLPS arising in the hypopharyngeal region is exceptionally rare, particularly in young adults, and may clinically mimic benign submucosal lesions. We report the case of a 24-year-old man who presented with a one-month history of persistent foreign body sensation in the throat. Flexible laryngoscopy revealed a smooth submucosal mass arising from the left hypopharyngeal region, and contrast-enhanced magnetic resonance imaging demonstrated a well-circumscribed enhancing lesion without cervical lymphadenopathy. The mass was excised transorally under general anesthesia. Histopathological examination showed mature adipocytic proliferation with atypical stromal cells, and immunohistochemistry demonstrated positivity for MDM2, CDK4, CD34, and p16. Fluorescence
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