History
The eruptive phase usually begins 48 hours (range, 6-72 h) after a cold injury to exposed or poorly protected areas. The patient may have a history of a febrile illness or other illness without dermatologic findings. It may occur after ice therapy, a first-line treatment for supraventricular tachycardia in neonates. [9] Equestrian cold panniculitis was documented in a cold-storage-room worker. [10]
Physical Examination
Pertinent physical findings are limited to the skin. Lesions present as localized indurated nodules with ill-defined margins similar to erythema nodosum. Nodules are raised slightly above the skin line. Nodules are firm or hard and cold and painful. [3]
Cutaneous distribution in children characteristically is on the face (cheeks and forehead), [11] as shown in the image below. Skin color changes are red or violet. One report describes toe involvement. [12]
In women who are obese, cutaneous distribution characteristically is on the buttocks, thighs, arms, and under the chin (areas poorly protected from the cold). Thigh lesions, in particular, overlap with perniosis.
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Classic presentation of cold panniculitis with nodular red swellings over the cheeks.