An autopsy case of testicular tumor forming a widespread metastatic tumors in a 6 years boy

Abstract

This report deals with a male patient of 6 years, succumbed to testicular tumor origeniating in the left testis with widespread metastatic tumors in the whole body after extirpation.1. Gross findings1) Operative specimem : Hen's egg sized, soft, covered with thick white capsules and divided into many nodules by a small amoumt of connective tissues.2) Metastatic tumor formations around the abdominal aorta and pelvic space having sizes of an infant's head and a fist, respectively.3) Swelling of liver with numerous metastatic lesions.4) Numerous metastatic lesions of omentum, diaphragm and lymphonodules around the gastric wall.5) A pea-sized metastatic tumor formation in upper lobe of right lung.6) In addition, cerebral swelling, hydronephrosis of left kidney and dilatation of left ureter were main findings.2. Microscopic findingsMicroscopicallg the tumor consisted of two types of cells. One had wide acidophilic cytoplasm with ovoid nucleus poor in chromatin and often showed large acidophilic inclusions bodies. The other had obscure cytoplasm with ovoid, chromatinrich nucleus and distinct nucleolus. Polymorphisms were dominant in a latter cell group. The former showed less polymorphisms and inclined to form cell masses or giant cell formation.The tumor was rich in blood vessels and in some part showed radial arrangement around the vessel wall. But as a rule the tumor tissue had less resemblance to the mature tissues.It is considered that this tumor belongs to a type of embryonal carcinoma on account of the above mentioned histological pictures.