Publications by authors named "Shunji Maekura"

Ganglioneuromas (GNs) in adults are uncommon clinical entities, especially in the colon. Patients with GNs without multiple endocrine neoplasia or neurofibromatosis-I are normally asymptomatic; however, GNs can present with abdominal pain, weight loss, bleeding, and anemia, depending on the size and location. Here, we present a case of solitary colonic GN treated with endoscopic mucosal resection.

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Anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis is the most common type of autoimmune encephalitis. The disease predominantly affects women (1:5-1:10), with only 3 reports of autopsy findings in women being published to date. The present study reports findings from the first autopsy performed on a man with anti-NMDAR encephalitis.

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Amyloidosis is a well-known but uncommon disease, and the physician must maintain a high index of suspicion in order to make a timely diagnosis. The expected survival of patients with cardiac amyloidosis is generally poor. In particular, survival has been reported to be 4-12 months for patients with amyloid light-chain amyloidosis with congestive heart failure.

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Primary leiomyosarcomas of the gastrointestinal (GI) tract are extremely rare and highly aggressive neoplasms, and only a small number of true cases have been reported since the concept of GI stromal tumors was established. Here, we report a case of a primary leiomyosarcoma of the transverse colon. A 46-year-old Japanese male with a large mass in the right upper abdomen was admitted to our hospital.

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This report concerns a case of cyst of the tunica albuginea testis in a 74-year-old man, who presented with a painful swelling of right scrotal contents. Magnetic resonance imaging (MRI) and ultrasonography revealed a cystic mass on the surface of the right testicle. We performed resection of the cystic wall.

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A 43-year-old woman was referred to our hospital for fever, general fatigue and left flank abdominal pain during the last two weeks. A blood test showed severe inflammation, and computed tomography (CT) study of the abdomen with intravenous contrast revealed swelling and irregular enhancement in the upper left kidney. Initially, we diagnosed it as xanthogranulomatous pyelonephritis and treated it with antibiotics.

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Anti-N-methyl-D-aspartate receptor (anti-NMDAR) antibody-associated encephalitis is an immunologic disease characterized by a female preponderance. Males are infrequently affected. The clinical symptoms of affected boys as well as girls have been summarized, and they have some clinical features distinct from those of adults.

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