Condition	Characteristics
Cutaneous T-cell lymphoma	Scaly, erythematous patches, plaques, or tumors affecting numerous body surface areas
Pityriasis rosea	Mildly pruritic, salmon-colored plaques arranged along skin cleavage lines, typically on the trunk, neck, and proximal extremities; preceded by herald patch
Secondary syphilis	Diffuse maculopapular lesions, mainly involving palms and soles, with systemic symptoms of fever, malaise, anorexia, and generalized lymphadenopathy
Squamous cell carcinoma in situ	Red-brown, scaling, poorly defined plaques, usually involving sun-exposed areas