Erythrocyanosis crurum puellarum - Altmeyers Encyclopedia

Synonym(s)

Red Thigh

History
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Klingmüller 1921

Definition
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Special form of acrocyanosis.

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Vascular medicine

Haematoma: not quite fresh haematoma of the sole of the foot; sharp limits to the discoloration.

Hematoma

Differently pronounced, possibly fluctuating bleeding into the skin and possibly also into the subcutaneous...

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Etiopathogenesis
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Functional circulatory disorders after cold stimulation. Probably also endocrine dysfunction. A pronounced fatty tissue protects the inside of the body against heat loss, but at the same time isolates the overlying skin. The skin is thus exposed to increased cold influences. Thus, cyanotic skin discolouration occurs over body regions which have a strongly developed subcutaneous fat pad and are increasingly exposed to cold stimuli as a result of clothing fashion.

Manifestation
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Especially with obese girls.

Localization
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Mainly lower leg; inner side of the thigh and knee region are often affected.

Clinical features
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Cyanotic, blurred, cold erythema, clear follicle marking ( perniosis follicularis), pasty infiltrates. Iris diaphragm phenomenon, regression of symptoms when heat is applied. Cinnabar stains after rubbing and finger pressure = arterial hyperemic reaction.