This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fungal infections, Subject name: Dental
A patient comes with a non itchy eruption in the groin which on KOH examination reveals fungi. The diagnosis is 
Select and explain. 
A. T corporis, B. T cruris, C. T incognito, D. T faciei
C: T incognito
Answer: C: T incognito 
Explanation: H/O: Non-itchy eruption in groin Dx: T.incognito Usually fungal infection in groin , Diagnosis would be T. cruris However question mentions its non-itchy and no inflammation d/t application of steroid which reduces the symptoms, but the fungal infections still persists. The infection flares up on stopping application