This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Papulosquamous Disorders, Subject name: Skin
Leg ulcers are not seen in - 
Select and explain. 
A. TB, B. Syphilis, C. anemia, D. psoriasis
D: psoriasis
Answer: D: psoriasis 
Explanation: Ans is 'd' i.e., Psoriasis Leg UlcerCausesVascularVenous InsufficiencyVenous Stasis UlcerArteriovenous MalformationArterial or ischemic causesPeripheral Vascular DiseaseBuerger's DiseaseRaynaud's Syndrome (Raynaud's Phenomenon)EmbolismVasculitic UlcerRheumatoid ArthritisSystemic Lupus ErythematosusSclerodermaPolyarteritisLymphaticLymphangitisLymphedemaInfectiousCellulitisOsteomyelitisSyphilisDermatitisContact Dermatitis or other allergic conditionBullous DiseaseMiscellaneousPrimary or metastatic neoplasmTraumaDrug-inducedWarfarinErgotismInjection ulcerPeripheral Neuropathy or PostitioningDiabetic NeuropathyCharcot JointPressure Sore (Decubitus Ulcer)Systemic Diseaseo Diabetes Mellituso Congestive Heart Failureo Malnutritiono Anemia