Clinical classification of panniculitis based upon etiology*

Infection and infestation

Bacterial, mycobacterial, or fungal infections

Parasites

Arthropod bite

Trauma

Cold panniculitis (popsicle panniculitis, equestrian panniculitis, subcutaneous fat necrosis of the newborn, sclerema neonatorum)

Blunt trauma

Factitial panniculitis (iatrogenic, accidental, or intentional injections)

Post-irradiation panniculitis

Enzymatic destruction

Pancreatic panniculitis

Alpha-1 antitrypsin deficiency

Malignancy

Lymphoma

Cytophagic histiocytic panniculitis^¶

Leukemia cutis/metastases

Deposition

Gouty panniculitis

Calciphylaxis

Hyperoxaluria

Inflammatory

Erythema nodosum

Lipodermatosclerosis (sclerosing panniculitis)

Erythema nodosum migrans/subacute nodular migratory panniculitis/chronic erythema nodosum^Δ

Erythema induratum/nodular vasculitis

Vasculitis (especially polyarteritis nodosa)

Superficial migratory thrombophlebitis

Post-steroid panniculitis

Lupus panniculitis

Panniculitis of dermatomyositis

Connective tissue disease panniculitis

Deep morphea

Necrobiosis lipoidica diabeticorum

Rheumatoid nodule

Subcutaneous granuloma annulare

Subcutaneous sarcoidosis

Erythema nodosum leprosum

* The list is not intended to be exhaustive. Some conditions may be multifocal in etiology (eg, traumatic and inflammatory). In some conditions, the etiology is not definitively established.
¶ Cytophagic histiocytic panniculitis may not represent malignancy in all cases.
Δ There is not consensus about whether subacute nodular migratory panniculitis is a variant of chronic erythema nodosum or a separate entity.

Graphic 85714 Version 4.0

خرید پکیج

Clinical classification of panniculitis based upon etiology*