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  • Title: Two cases of myxoma of the external auditory canal.
    Author: Hoshino T, Hamada N, Seki A, Ogawa H.
    Journal: Auris Nasus Larynx; 2012 Dec; 39(6):620-2. PubMed ID: 22306211.
    Abstract:
    Myxomas were found in the outer ear canal of a 66-year-old female and a 51-year-old male. Both tumors were soft and sessile and located at the antero-superior part of the external auditory canal near the eardrum. Profuse, clear mucus was seen when the tumor ruptured or was incised. Histology showed spindle-shaped and stellate cells in myxoid extracellular matrix. CT images revealed a small bone defect adjacent to the tumor in the meatal bone. This bony defect was confirmed during surgery. The bony defects seen in both cases may have something to do with the genesis of the tumor. We found only 5 sporadic cases, including ours, reported in the English literature. As myxoma of the outer ear canal is also reported in 18 patients as a symptom of Carney's complex, we must check for accompanying symptoms of the complex such as spotty skin pigmentation, endocrine tumors, or schwannoma. Total removal of the tumor is necessary to prevent recurrence.
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