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Published on: May 23, 2021
Primary lymphoma of bilateral external auditory canals
Jun Shuto1, Tomoyo Ueyama, Masashi Suzuki
1Department of Otolaryngology, University Hospital, Oita Medical University, 1-1 Idaigaoka, Hasama-machi, Oita-gun, Oita 879-5593, Japan.
Abstract:
We report a rare case of primary lymphoma originating in the bilateral external auditory canals. A 49-year-old man presented with cauliflower-like tumors on both of his external auditory canals. Immunohistopathologic examination and immunoglobulin heavy chain gene rearrangement studies led to a diagnosis of B-cell lymphoma. He had no other systemic involvement. After chemotherapy, total gross tumor removal by surgery was achieved, and no recurrence has been detected during 1 year of follow-up. To our knowledge, this is the third case of malignant lymphoma originating in the external auditory canal to be reported in the literature, and this is the first report that includes immunohistochemical findings of fresh tissue.
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