Tadahiko Saiki

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Giant cell tumor (GCT) is a benign neoplasm arising most commonly in the long bones. GCTs of the larynx (GCTL) are relatively rare, and only individual case reports are documented in the literature. Patients with such tumors may present with hoarseness and anterior neck swelling. We present a 59-year-old man with hoarseness and enlarging anterior neck mass(More)
An extraskeletal chondroma is a rare benign cartilaginous tumor that develops in soft tissue. Histologically, it is a lobulated nodule surrounded by a fibrous capsule; the inside consists of mature hyaline cartilage containing a few normal chondrocytes. We present a rare case of extraskeletal chondroma in the preauricular region. A 43-year-old man presented(More)
Immunoperoxidase localization of carcinoembryonic antigen was done on tissue sections of benign hyperplasia and adenocarcinoma of the prostate using murine monoclonal antibody against carcinoembryonic antigen. The study was done to determine whether carcinoembryonic antigen would be a tissue marker of prostatic malignancy. Of 30 benign lesions 25 (83 per(More)
Clinical and statistical observations were made on 15 cases of squamous cell carcinoma of the bladder experienced at our department during the past 19 years. The patients were 10 men and 5 women ranging in age from 41 to 80 years (median: 65.1 years). Forty percent of the chief complaints was bladder irritability without macrohematuria. The prognosis was(More)
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