Abstract
Lycopodium clavatum (LC) spores were found in two cases in transrectal ultrasound-guided core biopsies of the prostate. The source turned out to be the coating of the condoms used for protection of the ultrasound probe. To minimize confusion in analysing the biopsies and to avoid granulomas of the prostate, LC spore-free condoms are available and are recommended for the biopsy procedure.