Differential Diagnosis of Onychomycosis

摘要: Almost 50% of nail pathology is caused by onychomycosis. However, the has a limited reservoir clinical expressions and many conditions may mimic Its differential diagnosis should be known in order to avoid useless or even toxic treatments. When confronted with ungual alterations restricted one some nails, it fair evoke onychomycosis but keep mind repeated traumata toenails, psoriasis chronic paronychia on fingernails. Involvement large number especially all twenty not first suggest fungal infection rather an inflammatory systemic condition. It mandatory always sample for mycological examination before prescribing any treatment.