[Ultrastructural study of the diseased and contralateral testes in unilateral testicular torsion].

In 15 patients with acute unilateral testicular torsion, bilateral orchiopexy was performed and biopsies were made at the same time for the purpose of light-microscopic (semi-thin section method) and electron-microscopic examination. All tissue specimens from the twisted and nontwisted gonads showed changes in the form of tubular atrophy, atrophy of the Leydig cells and malformation at the spermatid level. Nevertheless, it is not possible, on the basis of these findings, to determine definitely whether the disorders of spermatogenesis frequently found in unilateral testicular torsion are the result of congenital dysplasia or damage to the germinal epithelium caused by recurrent subtorsion.

Ultrastructural studies of the contorted and contralateral testicle in unilateral testicular torsion.

In 7 patients with acute unilateral testicular torsion, bilateral orchiopexy was performed and biopsies were made at the same time for the purpose of light microscopic (semi-thin section method) and electron microscopic examination. All tissue specimens from the twisted and non-twisted gonads showed changes in the form of tubular atrophy, atrophy of the Leydig cells and malformation at the spermatid level. The results indicate primary tissue damage of the testicles, which was already present before torsion occurred.

[Liver metastases: diagnostic value of blood tests, scintiscanning, and laparoscopy (author's transl)].

In 90 patients with known extra-hepatic malignancy the liver was examined for metastases. The diagnostic value of clinical information, blood examinations, 99mTc scintiscan, and laparoscopy for the diagnosis of the liver metastases was evaluated. Clinical data (age, sex, time since onset of symptoms and localisation of primary tumor) are of no diagnostic value.