We treated 15 patients with all sonographic criteria of a simple testicular cyst. Of the patients 6 were operated on and the diagnosis was confirmed histologically, while 9 did not undergo an operation but are under close observation (mean surveillance 11 months). All patients are without any detectable malignancy. The possibility of a surveillance strategy in simple intratesticular cysts is discussed.

We present the ultrasonic diagnoses and treatment of 44 patients with blunt scrotal trauma (rupture of the testis, hematocele, intratesticular hematoma and hematoma of the scrotal layers). Purely intratesticular hematoma without any other accompanying injury also can be detected sonographically. When massive scrotal swelling is present ultrasound is valuable to determine the status of the underlying testis even if discrete fracture planes of the tunica cannot always be detected. To achieve best long-term results early surgical intervention should be performed in cases of rupture of the testicle and hematocele, while hematoma of the scrotal layers and purely intratesticular hematoma can be treated conservatively.

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This study compares the results of a new computer assisted evaluation program of sonographic images of the prostate with the histological examination of the operative specimen. This computer program is based on the fact that the human eye is not capable of distinguishing picture distribution points which differ in higher than second order statistics. The sensitivity of the method was 89%, the specificity 86% and the diagnostic accuracy 88%. The results are discussed by comparing them to results of transrectal sonography and digital palpation as reported in the literature.