Ken Ishijima

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Giant cell tumors are benign tumors commonly found in the long bones. Rarely, they may occur in the larynx, and patients with such tumors may present with hoarseness and anterior neck swelling. Since Wessely reported the first case of laryngeal giant cell tumor in 1940, 30 cases have been identified. Herein, we present a case of a 31-year-old man with giant(More)
Infants with cleft palate (CP) display eustachian tube (ET) dysfunction. This study compared the postnatal development of the volume of ET cartilage in 34 normal cases and 10 CP cases using a personal computer. In cases with age under 1 month old, the total volume of ET cartilage was 61.94+/-20.89 mm(3) (mean+/-S.D.) in 16 normal control cases and(More)
The anatomic relationships among the levator veli palatini muscle (LVPM), the tensor veli palatini muscle (TVPM), and the eustachian tube (ET) cartilage were investigated by computer-aided 3-dimensional reconstruction and measurement methods. The study used 13 normal temporal bone-ET specimens obtained from 13 individuals (range of age at death, 3 months to(More)
Eleven normal human temporal bone-eustachian tube (ET) specimens obtained from 11 individuals whose ages were 3 months to 88 years were studied to investigate the path length along the ET lumen and its postnatal development by means of a computer-aided 3-dimensional reconstruction and measurement method. The path length of the ET lumen of the 3-month-old(More)
OBJECTIVES The eustachian tube (ET) and the tensor veli palatini muscle (TVPM) are thought to play an important role in ventilatory function. Calcification of the ET cartilage and the replacement of TVPM by fat tissue are often observed histologically in elderly patients. To our knowledge, however, there are no quantitative studies of these pathological(More)
The myocilin/trabecular meshwork-inducible glucocorticoid response (MYOC/TIGR) gene was identified as a gene that caused open angle glaucoma (OAG). Single-strand conformation polymorphism analysis and subsequent sequence analysis were performed for the MYOC/TIGR gene in 120 unrelated Japanese OAG patients with increased intraocular pressure (IOP), 116(More)
Amyloidosis of the external auditory canal is extremely rare. Only 12 cases, including the present case, have been reported, and this is the second reported case attributed to dialysis. This case involved a 56-year-old man who had been on dialysis for 12years. A tumor was visible in the right external auditory canal and caused pain. The tumor was resected(More)
BACKGROUND/AIMS The effect of proton pump inhibitors (PPIs) on the health-related quality of life (HRQoL) of patients with laryngopharyngeal reflux disease (LPRD) is not well known. Our aim was to assess the HRQoL before and after administration of a PPI in patients with LPRD. METHODOLOGY A total of 27 LPRD patients (14 women, 13 men; mean age 54 years)(More)
We reviewed 165 cases of traumatic tympanic membrane perforation treated in the last 9 years (2000-2008). Of these, 103 sustained direct injury and 62 indirect injury. Ear picking accounted for 90.3% of direct injuries. Perforation size followed the classification of Yoshikawa, with Grade I perforation the most common, according for 129 (78.2%). The(More)
Polyarteritis nodosa (PAN) causes necrotizing angitis mainly in medium-sized muscular arteries throughout the body, and various clinical signs and symptoms such as fever, malaise, weight loss, skin necrosis, renal failure, cerebral nervous system disorder, heart failure, and myalgia develop in affected patients. However, otolaryngologists rarely encounter(More)