Tomoyuki Tatenuma

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A 56-year-old man was referred to our clinic because of left lumbar pain and a left solitary renal tumor (9. 8 cm in diameter) and bilateral pulmonary metastases detected by computed tomographic scan. Pathologic diagnosis following open radical nephrectomy was papillary renal cell carcinoma, G2, pT2aN0M1. Subsequently, the patient was sequentially treated(More)
A 63-year-old man presenting with a 7.2-cm right renal mass, an inferior vena cava tumor thrombus, and pulmonary metastases underwent renal mass biopsy that revealed clear cell renal cell carcinoma. Temsirolimus (25 mg weekly) was given because of the extent of the disease and poor performance status, which resulted in a marked reduction in the tumor(More)
UNLABELLED INTRODUCTION Training systems for laparoscopic surgery are useful for basic training but are not suitable for specific training corresponding to the condition of a given patient. We, therefore, have developed an unusual training system: a patient-specific simulator for laparoscopic surgery. When specific data of each individual patient are(More)
OBJECTIVE To report the first case of preoperative training using a patient-specific laparoscopic simulator for a patient with situs inversus totalis (SIT). MATERIALS AND METHODS A 61-year-old man presented with gross hematuria and was diagnosed with right renal pelvic cancer T1N0M0. A whole-body computed tomography (CT) scan also revealed his organs(More)
A 65-year-old male was referred to our clinic from orthopedics because his right gastrocnemius muscle tumor was diagnosed as a metastatic renal cell carcinoma (RCC) with clear cell/spindle cell morphology. He had right nephrectomy for RCC 18 years previously. At 17 months following the first visit to our clinic, brain, lung and right gluteus medius muscle(More)
A 72-year-old man presenting with a 14-cm left renal mass, an inferior vena cava (IVC) tumor thrombus, and pulmonary metastases underwent renal mass biopsy that revealed clear cell renal cell carcinoma. Because of metastases and the extent of the tumor thrombus, sunitinib was administered, which resulted in a marked reduction in the tumor thrombus (from(More)
We describe a case of testicular tumor with multiple metastasis to the lung,retoroperitoneal lymph node, and brain. After chemotherapy the retroperitoneal lymph node and brain metastasis disappeared,but the multiple pulmonary metastases but not disappear,although they were reduced in size. Since the human chorionic gonadotoropin (HCG) was persistently(More)
A 74-year-old man underwent transurethral resection for a bladder tumor (TURBT). The pathological diagnosis was urothelial carcinoma, grade 3 pT2 at least. He desired preservation of the bladder. Thus, MEC (methotrexate 100-150 mg/body (day 1), etoposide 100 mg/m2 (day 2-4), cisplatin 20 mg/m2 (day 2-6)) chemotherapy was administered for 2 courses. The next(More)
Malignant peripheral nerve sheath tumors (MPNST) are highly malignant soft tissue sarcomas. It is very rare for MPNST to arise in the abdominal wall. We report a case of abdominal wall MPNST that was difficult to distinguish from a urachal disease. A 72-year-old woman found a mass of the umbilicus in October 2011. She visited a digestive surgery department(More)