[The value of imaging procedures in the diagnosis and therapy follow-up of induratio penis plastica (Peyronie's disease)].

The diagnosis of penile induration (Peyronie's disease; IPP) requires an appropriate history, clinical examination, autophotography and plain films in cases of calcified plaques, but ultrasound is the modality of choice. Besides the benefit of an exact staging (Kelâmi method) high-frequency ultrasound probes offer the possibility of detecting nonpalpable plaques early detection of changes in the tunica albuginea. Evaluation of inflammatory changes and disappearance of hyperechoic signs around the plaques or an increasing density of the corresponding corpus cavernosum can be detected by ultrasound, but sometimes to a restricted extent. In selected cases MRI offers the additional benefit of early detection of inflammatory changes of the dependent corpus cavernosum. Our own experience in the diagnosis of Peyronie's disease by ultrasound and MRI in cases of inflammatory changes are presented, especially after administration of Gd-DTPA. For hemodynamic disorders causing erectile dysfunction, in 50% of cases with IPP combined, pharmacocavernosometry and pharmaco-cavernosography are of considerable value. The use of modern diagnostic imaging modalities, e.g. ultrasound and especially MRI, increases the diagnostic impact in cases of IPP.