• Medicine · Sep 2014

    Review Case Reports

    Squamous cell carcinoma of the larynx arising in multifocal pharyngolaryngeal oncocytic papillary cystadenoma: a case report and review of the literature.

    • Markus Stenner, Klaus-Michael Müller, Mario Koopmann, and Claudia Rudack.
    • Department of Otorhinolaryngology, Head and Neck Surgery (MS, MK, CR); and Institute of Pathology, University Hospital of Münster, Münster, Germany (K-MM).
    • Medicine (Baltimore). 2014 Sep 1; 93 (12): e70.

    AbstractWe report on a rare case of a laryngeal carcinoma arising in a multifocal pharyngolaryngeal oncocytic papillary cystadenoma (OPC). The disease of a 63-year-old man is well documented by computed and positron emission tomography, histology, and electron microscopy. We could show that an OPC can even develop in the pharynx. The coexistence of both tumors makes this a challenging diagnosis for pathologists. Treated by surgery and radiotherapy, both lesions dissolved. Based on the literature available, we discuss the theory that the laryngeal carcinoma might be the result of a true metaplasia facilitated by chronic irritation and recommend a regular follow-up for OPC too. As in benign oncocytic lesions, we could show that the detection of numerous mitochondria is a diagnostic indicator for malignant variants as well.

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