The diagnosis of PF/PM lesions depends or their presentation and, most importantly, their histopathology showing the presence of epithelioid ganglion-like cell cells. The presence of at least some of these signature cells in a lesion with an appropriate presentation in either a soft tissue or muscle tissue is considered definitive evidence that the lesion is a PF/PM. Analyses of tumor tissues for c-FOS may turn out be another useful marker for PF/PM.
Proliferative fasciitis and proliferative myositis
Interstitial granulomatous dermatitis with arthritis
Blistering distal dactylitis
Remitting seronegative symmetrical synovitis with pitting edema
Photosensitivity with HIV infection
Nodular fasciitis
Milia-like calcinosis
Villonodular synovitis