This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fungal infections, Scabies, Pediculosis, Subject name: Dental
Tinea mannum effects 
Select and explain. 
A. Dorsuof hands, B. Palms, C. Nails, D. Foot
B: Palms
Answer: B: Palms 
Explanation: tinea manuum it is the ringworm of the palmar skin - non glabrous skin of hand. most common organisms- t.rubrum, e.floccosum predisposing factors: poor circulation, anatomical deformities, occupation, rings, wrist bands and hyperhidrosis. clinical types: non inflammatory squamous type- hyperkeratotic lesions of palms inflammatory vesicular or dyshydrotic or eczematous form: vesicles over palms with eczematous changes Iadvl textbook of dermatology page 266