Fig. 2From: Hair embedding after transperineal prostate biopsy: two case reportsBard MC1820 disposable biopsy needle, soft hairs, and radish were used for simulation experiment; B. The fine hair is easily sandwiched between the needle core and the coaxial needle sheath; C. A short hair is seen in the sampling tank; D. Retained hair can be seen in the defect area of sampling in the puncture passage.Back to article page