Pseudodermatologic conditions Pseudodermatologic conditions Painful distal eritronichia and distal onycholisis This clinical picture is commonl in everyday derm consultation. Fungus is normal clinical answer but there´s a wide differential: Subungueal tumour? (glomus?) Lupus? 131692398 Transveral US scan There´s a bone proliferation with no flow 131692399 longitudinal US scan Same bone ploliferation makes diagnosis clear an indicatetes treatment: Exostosis can not be cured through imidazolics!!! 131692400