[A case report of pyogenic spondylodiscitis mimicking spinal metastasis of urothelial carcinoma].

A 75-year-old man was admitted to our hospital with a complaint of fever and backpain. He was diagnosed with acute pyelonephritis, and was administered an antibiotic. However, since there was no improvement in the symptoms, he was admitted to our hospital. Computed tomography revealed a tumor which was in contact with a thoracic vertebra. Because he had had a total cystectomy for bladder cancer in the past, we suspected a spinal metastasis of urothelial carcinoma. However, after magnetic resonance imaging, we finally diagnosed it as pyogenic spondylodiscitis, and his condition improved after administration of antibiotics.

[A case of metachronous testicular tumor developing seven years after complete remission of retroperitoneal extragonadal germ cell tumor].

A 26-year-old man was admitted to our hospital with a chief complaint of left cervical lymphadenopathy. He was diagnosed as having seminoma by needle biopsy. Computed tomography revealed an aorto-caval retroperitoneal tumor. Levels of lactic deydrogenase, human beta-chorionic gonadotropin, alpha-fetoprotein were not elevated. No abnormal findings were present on palpation and ultrasonography of the testes. The patient was diagnosed as having a retroperitoneal extragonadal germ cell tumor (EGCT). Three courses of chemotherapy (bleomycin, etoposide and cisplatin) and another course of chemotherapy (etoposide, ifosfamide and cisplatin) were performed. Complete remission was achieved. Seven years later, the patient noticed an enlargement of his right scrotal contents. Neither distant metastasis nor lymph node metastasis was detected by computed tomography. Right radical orchiectomy was performed and histology revealed seminoma with yolk sac tumor components. No recurrence has been seen after 10 months.