Initial lesions are hyperkeratotic and later dyschromic. The primary lesion develops 7 to 70 days after inoculation. It may measure up to 12.5 cm in diameter. Several months or years later, "pintids" or psoriasiform plaques develop. These lesions are highly infectious. Upon healing, hyper or hypopigmentation may result. In the tertiary stage which develops months to 10 years later, vitiligo-like white areas develop.


Standard serologic tests for syphilis are also valid for Pinta as they cannot distinguish between the various treponematoses. Dark field of a pintid may show spirochetes.


The WHO recommendations should be consulted. For example, 2.4 million units of penicillin G benzathine may be used. For penicillin allergic patients, tetracycline (e.g. 1-2 gm in divided doses for at least five days. For young children, erythromycin 8-10 mg/kg QID for 15 days is recommended.


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