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Biomedical subjects

S Y Chao

Publications and source records attributed to S Y Chao.

24 records · Page 2Linked to original sources
PubMed1987

Leiomyosarcoma of gingiva: report of a case and review of the literature.

Leiomyosarcoma of the oral region has rarely been reported. A review of the literature yield only 24 cases. The histopathology with special reference to ultrastructural findings and immunohistochemical examination of an additional case of leiomyosarcoma of mandibular gingiva has been presented. The manifestation and symptoms, treatment and prognosis, and the origin of this tumor are discussed. Because of the high rate of local recurrence and metastases, extensive surgical excision and long-term follow-up are mandatory.

Adult↗
PubMed1987

Histologic study of tissue response to implanted hydroxylapatite in two patients.

The tissue response to hydroxylapatite implants that had been used to augment deficient mandibular alveolar ridges was examined histologically in samples taken from two patients at five-months and one-year after implantation, respectively. New bone formation in the interparticular spaces was found in both cases. There was no evidence of foreign body response around the subperiosteal implanted particles.

Aged↗
PubMedDate not supplied

Botulism in China.

During the period 1958-1983, 986 outbreaks of botulism occurred in China, affecting 4,377 individuals and resulting in 548 deaths. The initial cases of botulism were found in Xinjiang province, where the incidence was highest. Outbreaks have occurred in all of the northern provinces and in some of the southern provinces of China. The toxin found most frequently in the northwest region of China was type A; in north China, type B; and in the northeast, type E. The most frequently offending food was home-made strong-smelling preserved bean curd, which was implicated in 74% of the outbreaks. The complex clinical manifestations of botulism can be grouped into those affecting the eyes, the mouth, the pharynx, and the skeletal muscles. Following the institution of effective methods of prevention and treatment, epidemics of botulism in China have been controlled and the mortality rate reduced from 41% (1950s) to 7.6% (1983).

Animals↗