A genetic disorder that can cause a severe, necrotizing panniculitis with tender erythematous nodules that ulcerate and drain an oily discharge.
Inflammation of subcutaneous fat after cold exposure, presenting as indurated, tender, erythematous nodules, classically on the cheeks of children ('popsicle panniculitis').
A lobular panniculitis, often associated with tuberculosis, presenting as tender, violaceous nodules on the posterior lower legs (calves) that frequently ulcerate.
A septal panniculitis presenting as the sudden onset of tender, erythematous, non-ulcerating subcutaneous nodules on the anterior lower legs (shins).
Panniculitis caused by self-injection of foreign substances, often presenting as bizarrely shaped, sterile or infected nodules and abscesses.
Panniculitis caused by direct inoculation of bacteria or fungi into the subcutaneous fat, leading to an abscess.
A chronic panniculitis associated with venous insufficiency, where the lower legs become fibrotic, hyperpigmented, and hardened, resembling an 'inverted champagne bottle'.
A panniculitis associated with lupus, presenting as firm, deep, subcutaneous nodules that heal with a characteristic depressed, atrophic scar.
Inflammation of subcutaneous fat associated with pancreatic disease, presenting as tender nodules that can ulcerate and discharge an oily, necrotic substance.
A rare manifestation of dermatomyositis, presenting as painful, subcutaneous nodules that may ulcerate and show calcification.
A deep form of morphea (scleroderma) that primarily involves the subcutaneous fat, causing indurated plaques.
A rare lymphoma that mimics panniculitis, presenting as multiple, deep-seated, subcutaneous nodules and plaques, primarily on the legs and trunk.
