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===Final diagnosis=== | ===Final diagnosis=== | ||
Granuloma, left ear, excision - inflammed granulation tissue. | Granuloma, left ear, excision - inflammed granulation tissue. | ||
==Keratinaceous debris (cholesteatoma)== | |||
===Microscopic description=== | |||
The section shows keratinaceous debris. There are no viable cells. | |||
===Final diagnosis=== | |||
Soft tissue, left ear ("left ear keratosis"), excision - keratinaceous debris. | |||
==Cholesteatoma== | |||
===Microscopic description=== | |||
The section shows lamellar keratin, abundant reactive histiocytes and multinucleated giant cells. Lymphocytes and plasma cells are present. There is dystrophic calcification. Fragments of bone are seen. | |||
===Final diagnosis=== | |||
Soft tissue, left ear ("left ear keratosis"), excision - keratinaceous debris and inflammation (consistent with cholesteatoma). |
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