Abstract
An adenomatous neoplasm from the middle ear was studied. Two distinct groups of cells were present. Electron microscopy suggested that one group was epithelial and the other neuroendocrine in origin. The features supported the hypothesis that such tumors arise from middle ear mucosa.
MeSH terms
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Adenoma / pathology
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Adenoma / ultrastructure*
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Adult
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Cytoplasmic Granules / ultrastructure
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Ear Neoplasms / pathology
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Ear Neoplasms / ultrastructure*
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Ear, Middle*
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Epithelium / ultrastructure
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Humans
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Intercellular Junctions / ultrastructure
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Male
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Microscopy, Electron
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Microscopy, Electron, Scanning
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Mucins / analysis