Details

Testis showing Teratoma

GC.10126

Specimen and Histological Glass Slide x1 Half of a testis showing a teratoma. From a male aged 33 years who sixteen months previously had injured the testis when a log which he was using as a lever slipped and hit the scrotum. At that time the testis was swollen and painful and it never returned entirely to the normal size. Recently the tesis had been noted to be enlarging, and examination revealed metastases palpable in the absomen. The Wassermann and Aschheim-Zondek reactions were negative. The specimen is a typical example of a teratoma. The tumour is irregularly spheroidal, measuring approximately 60mm. in diameter, with an extension up the spermatic cord. The testis is also invaded by the tumour and compressed to the postero-inferior aspect, where only the thin flattened remnant is visible. The cut surface of the tumour shows an irregular lobulated character, and contains innumerable small cystic spaces. Microscopically the teratoid character of the tumour is confirmed. There is a diversity of tissues with much aquamous epithelium, partly keratinized, cartilage, glandular tissue and unstriped muscle. The glandular tissue cell varies from a tall columnar ciliated type to a flattened epithelium which shows a carcinomatous transformation with numerous mitoses and invasion of the surrounding zone of compressed atrophic testicular tissue.