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Nail Conditions That Are Not Onychomycosis

Examples of differentiating onychomycosis from other nail infections. TRANSCRIPT: NOW, IT'S IMPORTANT TO DIFFERENTIATE ONYCHOMYCOSIS FROM OTHER NAIL INFECTIONS. AND THIS IS AN EXAMPLE OF A PATIENT WITH A PSEUDOMONAS NAIL INFECTION, AND PSEUDOMONAS AERUGINOSA MAKES TWO PIGMENTS: PYOVERDINE AND PYOCYANIN, SO IT GIVES OFF A BLUE-GREEN HUE, AND THIS IS COMMON IN PATIENTS THAT ARE EXPOSED TO A LOT OF WATER, SUCH AS SCUBA DIVERS, OR SWIMMERS. AND THIS OF COURSE, IS AN ACUTE PARONYCHIA, ACUTE BACTERIAL PARONYCHIA, AND OF COURSE, THESE ARE TREATED DIFFERENTLY THAN ONYCHOMYCOSIS. INFLAMMATORY NAIL CONDITIONS CAN ALSO RESEMBLE ONYCHOMYCOSIS, SO THIS IS A PATIENT WITH PSORIASIS. YOU CAN SEE HOW THICK THE NAILS ARE, AND HOW DIFFICULT IT WOULD BE TO DO ANYTHING WITH THESE NAILS. HERE YOU CAN SEE THE PITTING OF ONYCHOMYCOSIS, SO LITTLE INDENTATIONS IN THE NAIL, AND HERE YOU CAN SEE ONYCHOLYSIS, WHICH THIS IS PSORIASIS, BUT YOU CAN ALSO SEE THIS IN ONYCHOMYCOSIS, AND THIS IS AN EXAMPLE OF LICHEN PLANUS, WHERE YOU CAN REALLY GET LOSS OF NAIL AND IT CAN RESEMBLE THE END STAGE OF ONYCHOMYCOSIS, WHERE YOU GET CRUMBLING. SO ONYCHOMYCOSIS ALSO HAS TO BE DIFFERENTIATED FROM INFLAMMATORY NAIL CONDITIONS. THESE ARE SOME OTHER NAIL CONDITIONS, SO THESE ARE BOTH DEGREES OF CESSATION OF NAIL GROWTH. THIS IS AN EXAMPLE OF ONYCHOMADESIS, THIS IS AN EXAMPLE OF RETRONYCHIA, LOOKS VERY SIMILAR TO ONYCHOMYCOSIS. THIS IS CONGENITAL MALALIGNMENT OF THE GREAT TOENAIL, TYPICALLY WE WOULD SEE THIS IN KIDS, BUT WE CAN SEE ADULTS THAT HAVE ACQUIRED FORMS, AND THIS IS AN EXAMPLE OF ONYCHOGRYPHOSIS.