Suction purpura, groups of petechiae resulting from negative pressure on a circumscribed area of the skin,1 may present as puzzling and unusual eruptions, particularly in children. These symptoms are not always easily recognized as factitious and may suggest serious disease. Affected children frequently undergo unnecessary investigations, and both families and physicians may be seriously concerned for a considerable length of time before the correct diagnosis is made.2,3
Brockmann K, Diepold K. Juvenile Horseplay Purpura. Arch Dermatol. 2002;138(10):1384. doi:10.1001/archderm.138.10.1378
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