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Biomedical subjects

H Katayama

Publications and source records attributed to H Katayama.

At least 379 records · Page 21Linked to original sources

Mandibular metastasis of osteogenic sarcoma. Report of a case.

Metastasis of osteogenic sarcoma to the mandible is extremely rare. A case of mandibular metastasis of an osteogenic sarcoma of the left fibula is presented. The patient, a 17-year-old Japanese girl, was suffering from a metastatic gingival tumor, 3 by 5 cm. in size, with ulceration. Eventually, there were multiple metastases not only to the mandible but also to the thoracic vertebrae, lumbar vertebrae, sacrum, zygomatic bone, clavicle, sternum, humerus, rib, femur, tibia, lung, and meninges.

Adolescent↗

Panoramic roentgen anatomy of the maxillary sinus.

A dry maxillozygoma was radiographed with a Panex panoramic unit with lead foil and wires on the anatomic landmarks. The medical border of the maxillary sinus on the pantomogram is seen at the angle of the anterior and medial walls. The lateral border of the maxillary sinus consists of the maximum posterior convexity of the posterior, and medial walls are recognized as anatomic landmarks only when radiopaque materials are attached to individual walls. Most of the anterior and posterior walls of the maxillary sinus are superimposed upon the medial wall in the pantomogram. The anterior wall occupies the lateral third of the maxillary sinus. Anterior, posterior, and medial walls do not appear as anatomic landmarks on the pantomogram.

Humans↗

Bone changes in congenital biliary atresia. Radiologic observation of 8 cases.

In reviewing 38 cases of biliary atresia, 8 cases were detected to have osseous abnormalities. We found definite generalized demineralization of bones in 3 cases, metaphyseal abnormalities in 5 cases, and fractures in 4 cases. Marked demineralization of bones was seen in cases in which the clinical course was more than 1 year. No good correlation was observed between osseous changes and severity of liver dysfunction.

Bile Ducts↗