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An unusual rash
Paul F Findlay, W R Primrose
Department
of Medicine for the Elderly, Woodend Hospital, Eday Road, Aberdeen AB15
6LS UK
Accepted 2 September
1998
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Introduction |
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A 74-year-old man with a history of rheumatoid disease, and a left lower lobectomy for carcinoma of lung 25 years previously was admitted as an emergency to hospital with a 3-day history of a purpuric rash. The rash was noted initially on the feet and spread proximally to involve the thighs and buttocks with involvement of the extensor surface of the upper limbs but sparing of the trunk. There were no other symptoms apart from mild colicky abdominal pain and a minor sore throat before the onset of the rash. His rheumatoid disease was quiescent at the time and there had been no recent changes in his drug therapy.
Examination confirmed the presence of a purpuric rash (figures 1
and 2) in the absence of systemic illness. Routine blood testing was
normal aside from a slightly elevated urea at 7.6 mmol/l with a normal
creatinine. A clotting screen was also
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