Fig. 4

Penile fracture on B-mode and colour Doppler ultrasound. A 33-year-old patient during intercourse twisted and heard a ‘snapping’ sound, followed by rapid detumescence and swelling. An US examination was performed, and a B-mode axial section (a) showed a loss of continuity of the tunica albuginea (between arrowheads) of the right corpus cavernosum consistent with a penile fracture and rupture of the corpora cavernosum, associated with a haematoma (asterisk *). The haematoma has internal vascularisation on the colour Doppler study (b) corresponding to branches of the dorsal artery which are probably the origin of the haematoma. This example illustrates cases where dehiscence of the tunica albuginea is evident in B-mode US