Biomedical subjects
Publications and source records attributed to Y K Wing.
Giant cell arteritis is virtually unknown in Orientals. We report two cases of histologically proven giant cell arteritis in two elderly Chinese men, one of whom presented with typical symptoms and the other with occult features of the disease.
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Acne is a highly visible and common skin disorder which is potentially disfiguring and associated with adverse emotional responses in adolescents, who are markedly sensitive to body image changes. Two psychologically vulnerable Chinese girls are reported, in whom traditional health concepts reinforced dieting behaviour, led to weight loss, regression of acne and eventually anorexia nervosa. The intricate interactions of acne, health beliefs, dieting behaviour and eating disorders are discussed.
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A 30-year-old Chinese housewife presenting with what appeared to be late-onset anorexia nervosa was subsequently found to have peptic ulcer disease complicated by gastric outlet obstruction. Surgical treatment led to rapid improvement of body weight but not immature personality. Extra caution should be exercised in the diagnosis of anorexia nervosa presenting with atypical features in a community in which that condition is rare.
A painless lump in the breast in a 43-year-old Chinese woman was found on surgical excision to be a cysticercus presumed to be that of Taenia solium. Routine investigations failed to reveal infection at any other site.
Two studies were conducted respectively to examine the reliability and validity of the standard Zung Self-rating Depression Scale (SDS), and a 10-item shorter version of the same test. In particular, the scale's usefulness as a screening instrument for depression among the Hong Kong Chinese elderly was investigated. In addition to the SDS, the Geriatric Depression Scale and the Chinese Hamilton Depression Scale were used to assess the convergent validity of the SDS. Data were collected from 113 nondepressed community-dwelling and 80 depressed elderly subjects. The findings showed that both the original and the shorter version of the SDS were highly reliable and valid. Both versions were appropriate for use as screening instruments for geriatric depression in Hong Kong. When compared with the original scale, the shorter version appeared to be slightly superior in its sensitivity and specificity in discriminating between the depressed and nondepressed subjects.
We present the case of a patient with severe tardive dyskinesia that led to dehydration. Clinicians need to recognise that tardive dyskinesia is a potentially life-threatening condition, and familiarise themselves with its management.
Narcolepsy is a chronic condition that usually afflicts the patient for decades. It is more common than is generally appreciated. However, it is likely to be misdiagnosed because doctors are unfamiliar with some of the symptoms. Its significant socioeconomic impact on the patient's quality of life warrants prompt medical attention.