[Dedifferentiated Liposarcoma of the Anterior Mediastinum;Report of a Case].

A 69-year-old man was pointed out the anterior mediastinal mass on chest computed tomography (CT). Since the thymoma was suspected, thymectomy was performed through median sternotomy. The tumor was encapsulated and did not directly invade adjacent organs.

Rib Hyperostosis as a Risk Factor for Poor Prognosis in Cervical Spine Injury Patients With Diffuse Idiopathic Skeletal Hyperostosis.

Study Design: Retrospective multi-center study.

Objective: To identify the morphological features of costovertebral joints and ribs in surgically managed cervical injury patients with diffuse idiopathic skeletal hyperostosis (DISH) and to examine its impact on their vital prognosis.

Summary Of Background Data: Several reports have indicated that DISH is an independent risk factor for mortality after spinal fracture.

Gender differences in the prevalence of low back pain associated with sports activities in children and adolescents: a six-year annual survey of a birth cohort in Niigata City, Japan.

Background: This study was conducted to determine gender differences in the relationship between extracurricular sports activities (ECSA) and low back pain (LBP) in children and adolescents.

Methods: In a cohort analysis of a 6-year birth cohort annual survey, students were followed from the fourth to sixth grades of elementary school (E4-E6; 9-12 years old) through the first to third grades of junior high school (J1-J3; 12-15 years old). All students completed annual questionnaires on ECSA and LBP.

Dislocation of the Medial Head of the Triceps With Ulnar Nerve Location Anterior to the Medial Epicondyle.

Snapping elbow is a rare syndrome caused by dislocation of the medial head of the triceps. Simultaneous dislocation of the ulnar nerve occurs even less frequently. We report a case of ulnar nerve dislocation accompanied by dislocation of the triceps over the medial humeral epicondyle.

[Case report of acute encephalopathy caused by enterohemorrhagic Escherichia coli infection in a 24-year-old woman].

Hemolytic uremic syndrome (HUS) and acute encephalopathy caused by enterohemorrhagic Escherichia coli infection occur commonly in children, whereas adult-onset disease is rare. Here we report the case of a 24-year-old woman who developed acute encephalopathy and recovered without sequelae. She initially developed abdominal pain and diarrhea.

Investigating the minimum distance between the finger flexor tendons and distal radius during wrist and finger positions in healthy people.

Purpose: Rupture of the flexor pollicis longus (FPL) and index flexor digitorum profundus (FDP2) tendons often occurs after locking plate fixation for distal radius fracture. This study aimed to determine the shortest tendon-radius distances of different hand positions.

Methods: Fifty-nine hands of 30 healthy volunteers were studied.

Clinical characteristics and long-term prognosis of contemporary patients with vasospastic angina: Ethnic differences detected in an international comparative study.

Background: Possible ethnic differences in clinical characteristics and long-term prognosis of contemporary patients with vasospastic angina (VSA) remain to be elucidated.

Methods And Results: The Japanese Coronary Spasm Association (JCSA) conducted an international, prospective, and multicenter registry study for VSA patients. A total of 1457 VSA patients (Japanese/Caucasians, 1339/118) were enrolled based on the same diagnostic criteria.

Concurrent isolated retroperitoneal HGSC and STIC defined by somatic mutation analysis: a case report.

Background: Retroperitoneal high-grade serous carcinoma (HGSC) is extremely rare and the origin remains unclear. We present a case of retroperitoneal HGSC and coexisting serous tubal intraepithelial carcinoma (STIC), which is considered as the main origin of ovarian HGSC. We reviewed the available literature and discussed about the origin of this rare disease.

Prophylactic efficacy of a novel method against postendoscopic papillary balloon dilation pancreatitis.

Objective: This study aimed to investigate whether a novel method including prophylactic pancreatic stent (PS) placement prevents postendoscopic papillary balloon dilation pancreatitis.

Patients And Methods: This study enrolled 200 consecutive patients with bile duct stones measuring up to 8 mm in diameter and retrospectively recruited 113 patients undergoing ordinary endoscopic papillary balloon dilation (EPBD) without PS placement from our previous study. In the novel method, EPBD and PS placement was attempted with a guidewire left in the main pancreatic duct for patients in whom stable guidewire placement in the main pancreatic duct was possible.

Dorsal-approach open reduction for irreducible dislocation of the hallux interphalangeal joint: A case series.

Introduction: The common treatment for hallux interphalangeal joint dislocation is closed reduction, but some cannot be reduced by interposition of the sesamoid or the plantar plate in the interphalangeal joint, and such cases need open reduction.

Presentation Of Case: In case 1, the patient was a 17-year-old boy who was injured when a motorcycle fell on his right hallux. X-ray revealed Miki type 2 IP joint dislocation.

[Papillary Fibroelastoma Arising from Chordae Tendineae of the Mitral Valve Chordae;Report of a Case].

Cardiac papillary fibroelastoma is a rare primary cardiac tumor arising from any part of the endocardium. In particular, papillary fibroelastoma originating from the mitral valve chordae is very rare. A 66-year-old man was hospitalized for a left ventricular tumor.

Correction to: Effects of eculizumab treatment on quality of life in patients with paroxysmal nocturnal hemoglobinuria in Japan.

In the original publication of this article, Tables 2, 3 and 4 were published incorrectly. The corrected tables 2, 3 and 4 are given in the following pages.

A Phase II Study of Irinotecan for Patients with Previously Treated Small-Cell Lung Cancer.

Objective: Chemotherapy with irinotecan plus cisplatin has shown promise in chemo-naïve small-cell lung cancer (SCLC) patients. However, irinotecan treatment for relapsed or refractory SCLC has not been adequately evaluated. This phase II study evaluated the appropriate treatment schedule of irinotecan as a single agent.

Effects of eculizumab treatment on quality of life in patients with paroxysmal nocturnal hemoglobinuria in Japan.

In paroxysmal nocturnal hemoglobinuria (PNH), various symptoms due to intravascular hemolysis exert a negative impact on patients' quality of life (QOL). To determine clinical factors related with improvements in QOL in PNH patients treated, we analyzed changes in QOL scales in PNH patients treated with eculizumab based on data collected from post-marketing surveillance in Japan. Summary statistics were obtained using figures from QOL scoring systems and laboratory values, and evaluated by t test.

A case report of an isolated fracture through the radial bicipital tuberosity.

Introduction: Generally, anatomical reduction of shaft fractures through operative treatment is necessary to restore the anatomical relationship of the forearm bones. However, a number of nerves and vessels are located in the proximal radius, which complicates surgery. In this study, we aimed to reduce postoperative complications by using a posterior approach.

Tubulointerstitial Nephritis with IgM-Positive Plasma Cells.

Infiltration by IgG-positive plasma cells is a common finding in tubulointerstitial nephritis. Indeed, it has been thought that CD138-positive mature plasma cells secrete mainly IgG, and the occurrence of tubulointerstitial nephritis with CD138-positive plasma cells secreting IgM has rarely been reported. Routine immunofluorescence of fresh frozen sections is considered the gold standard for detection of immune deposits.