Masatoshi Yunoki

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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)
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)
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)
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)
BACKGROUND Olfactory neuroblastoma (ONB) is a rare, aggressive tumor of the nasal cavity. It may invade the paranasal cavities and anterior skull base locally but may also metastasize to the cervical lymph nodes, lungs, or distant central nervous system. CASE DESCRIPTION Here, we report a case of ONB in which emergency surgery was performed for intradural(More)
We studied the association between polymorphonuclear elastase and endotoxin levels and complications following hepatectomy. The blood concentrations of polymorphonuclear elastase, endotoxin, fibrinogen and C-reactive protein were examined with the aim of clarifying their involvement in postoperative complications in twenty-five patients who underwent(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)
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)
BACKGROUND Most spinal cavernous haemangiomas occur in the vertebral body and purely extradural cavernous hemangiomas without any vertebral body involvement is rare and account for only 4% of all extradural spinal tumors. Dumbbell-shaped spinal cavernous angioma is extremely rare, only 10 cases have been reported in the literature. CASE DESCRIPTION A(More)