Histopathology of the Nail Onychopathology

4.3.2.1 Histopathology -- 4.3.2.2 Differential diagnosis -- 4.3.3 Atypical mycobacteriosis -- 4.3.3.1 Histopathology -- 4.3.3.2 Differential diagnosis -- 4.4 Treponemal diseases -- 4.4.1 Syphilis -- 4.4.1.1 Histopathology -- 4.4.1.2 Differential diagnosis -- 4.4.2 Other treponematoses -- 4.4.3 Borreliosis -- 4.4.3.1 Histopathology -- 4.4.3.2 Differential diagnosis -- 4.5 Mycoses of the nail apparatus -- 4.5.1 Superficial mycoses -- 4.5.1.1 Onychomycoses -- 4.5.2 Subcutaneous mycoses -- 4.5.2.1 Sporotrichosis -- 4.5.2.2 Lobomycosis -- 4.5.2.3 Chromoblastomycosis -- 4.5.2.4 Alternariosis -- 4.5.2.5 Eumycetoma -- 4.5.3 Deep and systemic mycoses -- 4.5.3.1 Coccidioidomycosis -- 4.5.3.2 Paracoccidioidomycosis -- 4.5.3.3 Histoplasmosis -- 4.5.3.4 North American blastomycosis -- 4.5.3.5 Cryptococcosis -- 4.5.3.6 Aspergillosis -- 4.5.3.7 Fusariosis -- 4.5.3.8 Zygomycosis (Phycomycosis, Mucormycosis) -- 4.6 Protothecosis -- 4.6.1 Histopathology -- 4.6.2 Differential diagnosis -- 4.7 Protozoal infections -- 4.7.1 Leishmaniasis -- 4.7.1.1 Histopathology -- 4.7.1.2 Differential diagnosis -- 4.8 Infestations -- 4.8.1 Scabies -- 4.8.1.1 Histopathology -- 4.8.1.2 Differential diagnosis -- 4.8.2 Tungiasis -- 4.8.2.1 Histopathology -- 4.8.2.2 Differential diagnosis -- 4.8.3 Myiasis -- 4.8.3.1 Histopathology -- 4.8.3.2 Differential diagnosis -- 4.8.4 Cutaneous larva migrans -- 4.8.4.1 Histopathology -- 4.8.4.2 Differential diagnosis -- 4.8.5 Pediculosis -- 4.8.5.1 Histopathology -- 4.8.5.2 Differential diagnosis -- References -- 5. Nail changes in systemic diseases and drug reactions -- 5.1 Nail changes in cardiovascular disorders -- 5.1.1 Clubbing -- 5.1.1.1 Histopathology -- 5.1.1.2 Differential diagnosis -- 5.1.2 Splinter hemorrhages -- 5.1.2.1 Histopathology -- 5.1.2.2 Differential diagnosis -- 5.1.3 Thrombangitis obliterans