Most common

α1-antitrypsin deficiency

Cytophagic histiocytic panniculitis (a lymphoma)

Lupus erythematosus profundus (lupus panniculitis)

Nodular fat necrosis

Occasional

Necrobiosis lipoidica

Necrobiotic xanthogranuloma

Scleroderma

Subcutaneous granuloma

Rare

Cold panniculitis

Infectious panniculitis

Leukemic fat infiltrates

Lipodystrophies

Poststeroid panniculitis

Povidone panniculitis

Scleroderma neonatorum

Sclerosing panniculitis

Subcutaneous fat necrosis of the newborn