Masatoshi Yunoki

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OBJECTIVE AND IMPORTANCE Diencephalic syndrome of emaciation (DS) is seen almost exclusively in infants and young children, and only two cases of DS in adults have been reported previously. We describe a case of DS associated with a third ventricle intrinsic craniopharyngioma in an adult patient. CLINICAL PRESENTATION A 54-year-old man presented with(More)
Although CT is one of major diagnostic imaging methods, the role of CT in the detection and diagnosis of early carcinomas depends on the organ and character of the tumors. Because difference in attenuation between lung parenchyma and carcinomas is large, contrast enhanced CT is not effective to diagnose early lung carcinoma. However, difference in(More)
OBJECTIVE To examine the ultrasound (US) appearances of the lymph nodes in the hepatoduodenal ligament in patients with and without hepatic diseases. PATIENTS AND METHODS US appearances of elliptical nodules around the common hepatic artery and/or the portal vein were prospectively examined in 156 sequential patients referred for US scans. Retrospective(More)
Per-rectal portal scintigraphy is a non-invasive method in which a radioisotope is used for imaging of the portal collaterals. Per-rectal portal scintigraphy with 99m-technetium pertechnetate (99mTcO4-) was performed in 42 subjects to evaluate the portal hemodynamics. Ten healthy controls, 13 cases of liver cirrhosis without esophageal varices, 15 cases of(More)
A 56-year-old man presented with a very rare true neurenteric cyst in the conus medullaris without evidence of vertebral or visceral anomaly manifesting as a 6-month history of mild low back and bilateral inguinal pain. No motor weakness was found in the bilateral lower extremities. He had also suffered dysesthesia in the bilateral feet for several weeks(More)
The role of CT in the diagnosis of fatty liver is well established. CT has been proved to be a useful noninvasive tool for the demonstration of fatty infiltration of the liver. The characteristic finding is a diffuse decrease in the attenuation within the liver compared with that of the spleen. Commonly, fatty infiltration of the liver is generalized and(More)
Leiomyoma is one of the rarest solid tumours of the ovary. We report a case of a degenerated ovarian leiomyoma associated with pregnancy. MR findings are identical to those of degenerated uterine leiomyoma and it is difficult to differentiate between them. Ovarian leiomyoma should therefore be included in the differential diagnosis of subserosal uterine(More)
BACKGROUND Nocardia infection of the central nervous system leading to brain abscess is a rare condition but has a high mortality rate. Among the species of Nocardia, only three cases of brain abscess due to Nocardia asiatica infection have been reported. CASE DESCRIPTION A 65-year-old man with a history of autoimmune hemolytic anemia treated with(More)
The reticuloendothelial system (RES) plays an important role in the biological defense system. In the liver, Kupffer cells are the main constituent of the RES, and when their function is impaired postoperative complications may more often occur. By using 99mTc-labeled human serum albumin millimicrospheres (99mTc-HSA-MM) combined with assessment of single(More)
Diffuse idiopathic skeletal hyperostosis (DISH) is characterized by calcification and ossification of the soft tissues, mainly ligaments and entheses. The spines of patients with DISH generally become increasingly rigid and osteoporotic, and fractures may occur after even a relatively minor traumatic event such as a ground-level fall. Moreover, the(More)