Blood and lymphatic vessel disorders

Peter S. Mortimer

in Oxford Textbook of Medicine

Published on behalf of Oxford University Press

Published in print May 2010 | ISBN: 9780199204854
Published online May 2010 | e-ISBN: 9780199570973 | DOI:

Series: Oxford Textbooks

Blood and lymphatic vessel disorders

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Bleeding into the skin may occur for local reasons or as part of a systemic disorder. The distribution of lesions is important: widespread lesions suggest a systemic problem, whereas regional lesions suggest that local factors predominate.

Widespread flat purpura without erythema should prompt a search for underlying haematological abnormalities such as platelet disorders. Larger (>1 cm) areas of purpura or bruising usually result from coagulation dysfunction. Palpable purpuric lesions, or those with a blanching component, suggest an associated inflammation as can be seen with vasculitis....

Chapter.  11079 words.  Illustrated.

Subjects: Dermatology

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