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Biomedical subjects

R D Peachey

Publications and source records attributed to R D Peachey.

At least 19 recordsLinked to original sources

Darkening of white hair in Parkinson's disease.

We describe a patient with long-standing Parkinson's disease who noted that his white hair turned grey and darkened 8 months after the addition of carbidopa to his established levodopa (L-dopa) therapy and 4 months after the introduction of bromocriptine.

Carbidopa

Erosive pustular dermatosis of the scalp.

We report six patients with a previously undescribed but characteristic pustular dermatosis confined to the scalp. All the patients were elderly women who developed chronic, extensive, pustular, crusted and occasionally eroded lesions of the scalp which produced scarring alopecia. Investigations were essentially negative and skin biopsies showed only non-specific changes of atrophy and chronic inflammation, sometimes with increased plasma cells in the infiltrate. The condition did not respond to antibiotics, but was suppressed by potent topical steroids.

Aged

Azathioprine plus prednisone in treatment of pemphigoid.

Twenty-five patients taking part in a controlled trial to compare azathioprine plus prednisone with prednisone alone in the treatment of pemphigoid were followed up for three years. Results showed that the addition of azathioprine 2.5 mg/kg body weight daily reduced the total maintenance dose of prednisone needed by about 45%, with no increase in serious side effects or mortality. The suggestion that azathioprine might increase the risk of disseminated malignancy in elderly patients was not supported. We conclude that in future trials the combination of azathioprine with prednisone should be used as the standard treatment for comparison.

Aged

Leg ulcers in alpha-thalassaemia (haemoglobin H disease).

A case of recurrent leg ulceration associated with alpha-thalassaemia (haemoglobin H disease) is reported. It is suggested that leg ulcers occurring in the thalassaemic syndromes may be due to structural changes in the affected red cells which result in increased cell rigidity, decreased deformability and consequent diminished blood flow in capillary beds that are subjected to venous stasis.

Adult

'Fiddler's neck'.

'Fiddler's neck' is a condition affecting violin and viola players. Although well known to musicians it is not well recognized by dermatologists. Clinically the lesions usually consist of a localized area of lichenification of the left side of the neck--just below the angle of the jaw. Pigmentation, erythema and inflammatory papules or pustules are frequently present, while severe inflammatory induration, cyst formation and scarring occur in more severely affected subjects. The aetiology of the skin changes is probably due to a combination of factors; friction giving rise to lichenification, while local pressure, shearing stress and occlusion may play a part in producing the acne-like changes and cyst formation. In addition, poor hygiene may predispose to local sepsis.

Adolescent