Sections show desquamated keratin flakes surrounded by minimal inflammatory cell infiltrate including lymphocytes and plasma cells. No evidence of specific granulomas. Picture of cholesteatoma. No evidence of malignancy.
Lt. ear mass.
Soft tissue piece measuring 4.8 x 4 x 3.5 cm, showing a cyst measuring 3.5 x 3.5 cm that is filled with thick material.
Lt. ear mass, excision biopsy: