Cytologic features of seminal vesicle epithelium in aspiration biopsy smears of the prostate.

To determine the rate of occurrence of cells derived from seminal vesicles in routine needle aspirates of the prostate, the smears of 853 aspirates were reviewed. The cytologic features of cells originating from the seminal vesicles were described using air-dried smears stained by the May-Grünwald-Giemsa method. The differential diagnosis with malignancy is discussed.