[Skin manifestations of sarcoidosis].
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Humans↗
Biomedical subjects
R Kojima
Publications and source records attributed to R Kojima.
Atlantoaxial subluxation. Radiography and magnetic resonance imaging correlated to myelopathy.
Twenty-nine patients with atlantoaxial subluxation (18 with rheumatoid arthritis, 2 due to trauma, 4 with os odontoideum, and one each with polyarteritis nodosa, rheumatic fever. Klippel-Feil syndrome, achondroplasia, and cause unknown) were evaluated using a 0.22 tesla resistive MRI unit. Cord compression was classified into four grades according to the degree on magnetic resonance imaging. There were 7 patients with no thecal sac compression (grade 0). 10 with a minimal degree of subarachnoid space compression without cord compression (grade 1), 7 with mild cord compression (grade 2), and 5 with severe cord compression or cord atrophy (grade 3). Although the severity of myelopathy showed poor correlation with the atlantodental interval on conventional radiography, high correlation was observed between MR grading and the degree of myelopathy. The high signal intensity foci were observed in 7 of 12 patients with cord compression (grades 2 and 3) on T2 weighted images. Other frequently observed findings in rheumatoid arthritis included soft tissue masses of low to intermediate signal intensity in the paraodontoid space, erosions of the odontoid processes, and atlantoaxial impaction on T1 and T2 weighted images.
Adolescent↗
Real-time high resolution ultrasonography of solid breast masses: use of a 10-MHz mechanical sector transducer with a water bag.
We evaluated the diagnostic accuracy of real-time high-resolution ultrasonography (RHUS) for solid breast masses, using a 10-MHz mechanical sector transducer with a water bag. A total of 103 breast nodules in 100 women were analyzed. The nodules consisted of 42 carcinomas, 10 fibroadenomas, 38 mastopathies, and 13 miscellaneous lesions. Of them, 72.8% were less than 2 cm in size. Diagnostic accuracy was correlated with the size and pathology of the nodules. Sensitivity, specificity, and accuracy were 95.2%, 83.6%, and 88.3% for carcinomas, 90.0%, 88.2%, and 88.3% for fibroadenomas, and 50.0%, 98.5%, and 80.6% for mastopathies, respectively. The overall rate of diagnostic accuracy was 74.8%. The rate of accuracy according to mass size were 87.3% (-1 cm), 87.2% (1-2 cm), 88.0% (2-5 cm) and 100% (5 cm-). False positive cases (n = 10) included seven mastopathies, two granulomas, and one fibroadenoma. False negative cases (n = 2) included one fibroadenoma and one abscess. RHUS, using a 10-MHz mechanical sector transducer, was an excellent method for the diagnosis of solid breast masses.
Abscess↗