Biomedical subjects

Yoriaki Kagebayashi

Publications and source records attributed to Yoriaki Kagebayashi.

5 recordsLinked to original sources

PubMed2004

[Metastatic intrapelvic tumor from esophageal cancer: a case report].

We report a case of a metastatic intrapelvic tumor arising from esophageal cancer. The patient, a 74-year-old man, visited our hospital with the chief complaint of gross hematuria. Magnetic resonance imaging and cystoscopy revealed a huge intrapelvic tumor which invaded the bladder, rectum, sigmoid colon and left ilium. The patient underwent total pelvic evisceration with ileal conduit and colostomy. Pathologic diagnosis of the intrapelvic tumor was moderately differentiated squamous cell carcinoma. Preoperatively, gastrointestinal fiberscopy revealed an esophageal tumor, and biopsy showed moderately differentiated squamous cell carcinoma. Finally, the intrapelvic tumor was diagnosed as metastatic tumor from esophageal cancer.

Aged↗

PubMed2004

[Neuroendocrine differentiation in adenocarcinoma of the prostate during hormonal treatment: a case report].

Neuroendocrine (NE) cells are widely distributed in the acini and ducts of the normal prostate gland and produce neurosecretory products, which affect growth, differentiation and regulation of secretory function. Prostatic NE carcinoma is a rare situation and the NE differentiation in prostate adenocarcinoma appears to be characterized by poor prognosis, rapid tumor progression and the androgen-independent state, for which there is currently no successful therapy. We report a case of NE differentiated prostatic carcinoma, which was diagnosed as adenocarcinoma initially and the tumor progressed rapidly with NE differentiation during androgen suppression therapy.

Adenocarcinoma↗

PubMed2002

[A case of long-term survival neuroblastoma with conservative therapy].

We report a case of long-term survival in a patient with neuroblastoma treated with conservative therapy. A 2-year-old female patient who presented with a lower abdominal mass was diagnosed with neuroblastoma. Resection of the tumor was not successful because of adhesion. Histopathological diagnosis of para-aortic lymph node was ganglioneuroblastoma. Postoperatively 50 Gy-radiation and chemotherapy were performed. At age 17, needle biopsy of the tumor was performed, and the histopathological diagnosis was ganglioneuroma.

Abdominal Neoplasms↗

PubMed2002

[Spontaneous rupture of a left renal artery aneurysm: a case report].

Rupture of a renal artery aneurysm is an acute surgical event associated with high mortality. We report a case of retroperitoneal hemorrhage from a spontaneously ruptured renal artery aneurysm. A 73-year-old woman complained of left flank and abdominal pain. She consulted our department and left retroperitoneal hemorrhage was recognized by abdominal computerized tomography. Selective left renal arteriography revealed a saccular aneurysm arising from the ventral branch of the renal artery, and did not show extravasation of contrast material from the aneurysm. Since it was difficult to remove the aneurysm with preservation of the involved renal unit, we performed left nephrectomy.

Aged↗

PubMed2002

[Erectile dysfunction arising from polyarteritis nodosa: a case report].

A 30-year-old male was referred to our department during the examination and treatment for hypertension, because he had not achieved complete erection since the age of 26 years. After detailed examination, he was diagnosed to be suffering from nodal polyarteritis. Since erectile dysfunction persisted, the patient was hospitalized to investigate the cause of erectile dysfunction. Measurement of the penile brachial index (PBI) and cavernous infusion of papaverine hydrochloride strongly suggested the presence of arterial erectile dysfunction. Internal-pudendal angiography revealed multiple microaneurysms in the bilateral internal pudendal arteries, suggesting that nodal polyarteritis caused arterial erectile dysfunction.

Adult↗