Table 2. Differential diagnosis for the mucocutaneous manifestations of endemic treponematoses.

Yaws	Pinta	Bejel
Primary and secondary ulcers and papilloma	Primary and secondary lesions	Mucosal and perioral lesions
Syphilis	Eczema	Oral herpes simplex
Leishmaniasis	Classic or athrophic lichen planus	Aphtous ulcers
Paracoccidiomysosis	Tinea corporis	Angular cheilitis
Pyoderma	Syphilis	Syphilis
Ecthyma	Tuberculoid leprosy
Tropical ulcer	Psoriasis
	Pellagra
	Yaws
Papulosquamous secondary lesions	Dyschromic lesions	Cutaneous primary and secondary lesions
Syphilis	Pytiriasis alba	Syphilis
Psoriasis	Vitiligo	Condyloma acuminata
Eczema	Tinea versicolor	Molluscum contagiosum
Arthropod bites	Melasma	Seborrheic dermatitis
Scabies	Leprosy	Psoriasis
Dermatophytosis	Erythema dyschronicum perstans	Dermatophytosis
Tuberculoid leprosy
Tertiary gummatous lesions		Tertiary gummatous lesions
Syphilis		Syphilis
Lupus vulgaris		Lupus vulgaris
Deep fundal infections		Deep fundal infections
Mycobacterial infection		Mycobacteris infection
Rhinosporidiosis		Rhinosporidiosis
Rhinoscleroma		Rhinoscleroma