Publications by authors named "Zenkichi Sekiguchi"

We report a patient with sigmoid colon cancer who revealed a unique collision of hemorrhagic vascular adrenal cyst and adrenocortical adenoma with myelolipomatous changes. Two months before referral to our hospital, anticoagulant therapy was started for acute myocardial infarction. The components of the adrenocortical adenoma demonstrated a typical signal drop in opposed-phase magnetic resonance (MR) images although macroscopic fat was also depicted both on CT and MR images.

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A 51-year-old man visited our hospital with a chief complaint of left renal mass detected by ultrasonography in another hospital. Enhanced computed tomography (CT) revealed a hypovascular tumor measuring about 9 cm in the left kidney, tumor thrombus in the inferior vena cava and paraaortic lymph nodes metastases. Radical left transperitoneal nephrectomy with removal of the thrombus from the left renal vein were performed.

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A 50-year-old woman complaining of right flank pain visited our hospital. Computed tomography revealed adrenal gland tumor measuring 10 cm in diameter, and multiple bone and liver metastases. It was diagnosed as a malignant pheochromocytoma by means of endocrinological examination and metaiodobenzylguanidine scintigraphy.

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Purpose: For patients with metastatic castration-resistant prostatic cancer (mCRPC), docetaxel plus prednisone leads to superior survival and a higher response rate compared with mitoxantrone plus prednisone. We analyzed the efficacy of long-term treatment with ≥10 cycles of docetaxel, and validated the risk group classification in predicting overall survival (OS) in Japanese patients with mCRPC.

Patients And Methods: Fifty-two patients with mCRPC were administered 55 mg/m(2) docetaxel and 8 mg dexamethasone, every 3 or 4 weeks, simultaneously with hormonal therapy and daily oral dexamethasone.

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A 64-year-old Japanese man who presented with a left renal mass (diameter, 9 cm) and multiple lung metastases, underwent translumbar left radical nephrectomy. Histological examination revealed the presence of clear cell-type, G3, pT3b renal cell carcinoma. Interferon-alpha (IFN-α) was administered postoperatively.

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We report a case of high-grade invasive urothelial carcinoma with plasmacytoid differentiation of the urinary bladder. A 75-year-old woman was referred to our hospital because of macroscopic hematuria. Cystoscopy detected a solid pedunculated bladder tumor, and a transurethral resection of the bladder tumor (TUR-Bt) and the image findings showed pT1N0M0 bladder cancer.

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Objectives: This study is to elucidate the advantage of laparoscopic radical cystectomy (LRC) over open radical cystectomy (ORC) in an early perioperative period.

Materials And Methods: We investigated the perioperative outcome of the consecutive patients who underwent radical cystectomy at Yokohama City University Hospital. The data of 11 patients who underwent LRC from February 2008 to May 2009 was compared with that of 11 patients who had ORC from October 2006 to April 2009.

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The case was a 67-year-old male who visited our hospital with a major complaint of macroscopic hematuria. A bladder tumor was found. When a transurethral resection of the bladder tumor was performed, the histopathological diagnosis was neuroendocrine bladder cancer.

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A 73-year-old female was operated with radical nephrectomy and cholecystectomy for renal cell carcinoma and suspected gallstones after 9 courses of sunitinib treatment. Gallbladder specimen showed gallbladder metastasis originating from the renal cell carcinoma. Gallbladder metastasis from renal cell carcinoma is rare.

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The case was a 40-year-old female. She visited a local doctor with a chief complaint of right side abdominal pain. A right kidney tumor measuring 10 cm in diameter was observed in an abdominal Computed Tomography (CT) scan.

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