Abstract
We reviewed and analysed 499 cases of torsion of the testis reported in Japanese literature including our 4 cases. The results are as follows. 1. The age distribution of 456 cases shows two peaks at newborn and 18 years of age. Of all cases, the frequency in children under 10 years of age is 16%. 2. The affected side in patients under 1 year of age shows no laterality, but left-sided predominance is recognized (1t : rt=2.5 : 1) in the group over 1 year of age. 3. The newborns are 28 cases. Because of the poor clinical findings except scrotal mass and discoloration, orchiectomy is performed in 87% of patients (20/23). 4. 50 cases (10%) of torsion of undescended testis are collected. The incidence of this lesion in children is 16% (28 cases), and an orchiectomy is performed in 88% of patients (22/25). 5. The early recognition and immediate correction are essential in the treatment of this disease. An exprolatory operation should be performed for the patient suspected having acute testicular torsion. It is desirable to preserve the affected testis by detorsion and orchidopexy even though the testis is suspected as nearly necrotic.
