[A case of liver metastasis from a testicular tumor indicated by unreasonable CT findings--correlation of CT and autopsied specimen].
A 48-year-old men died of liver metastases from a left testicular tumor and was autopsied. It is thought to be rare for a pure seminoma of the testis to metastasize to the liver in the form of a large solitary nodule and for no obvious difference to be seen on plain and enhanced CT in the low-density area. These findings are unreasonable in view of the characteristic proliferative patterns of the tumor. Thus, the correlation between CT and the autopsied specimen was studied histopathologically with the purpose of understanding the focal conditions. The following results were obtained. A large low-density area in the right lobe of the liver on CT coincided with the autopsied specimen, and small nodular lesions scattered in the necrotic tissues were seen. The lesion was diagnosed to be metastasis from the testicular tumor and it was almost the coagulative necroses of the tumor cells in the histologic examination. Moreover, severe tumor thrimbi were observed in the blood vessels with special reference to metastatic foci. Above findings indicating the articular ischemic condition in the region of metastatic foci made it possible for the CT findings to be reasonably understood.
D004407:Dysgerminoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging / Q000473:pathology*; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D013736:Testicular Neoplasms; D014057:Tomography, X-Ray Computed