ContentsSynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferencesView all Images (13)
Other Resources UpToDate PubMed

Pinta

Contributors: Erin X. Wei MD, Edith Lederman MD, Susan Burgin MD
Other Resources UpToDate PubMed

Synopsis

Pinta, also known as azul, carate, and mal de pinto, is a nonvenereal endemic treponemal infection caused by the spirochete Treponema pallidum subsp carateum. The disease is confined to rural areas of northern South America and Mexico. However, current prevalence data is lacking.

Pinta affects all age groups, as opposed to other endemic treponemal diseases for which children are the most often affected. Most cases are limited to the skin. Infection usually is spread by person-to-person contact in endemic areas by direct skin or mucous membrane contact.

Pinta infection is divided into 3 stages. After an incubation period of 7-30 days, the primary infection begins as one or several small papules, usually on the exposed surfaces of the extremities. Papules are typically painless but may be pruritic. These primary lesions enlarge over the course of 3-9 months to form secondary lesions, including scaly, reddish papules and sometimes psoriasiform plaques (pintids or psoriasiform pintids). Regional lymph nodes may be enlarged and painless or inflamed. Primary and secondary lesions are extremely infectious. Over time, the color of the lesions changes from copper to slate blue, and they eventually appear white (either hypo- or depigmented) and either macular or atrophic, marking onset of the third stage. In this stage, hyperkeratosis of the palms and soles may also be seen, along with atrophic plaques. Late-stage tertiary lesions are no longer infectious. Regional lymphadenopathy may persist in this stage.

Codes

ICD10CM:
A67.9 – Pinta, unspecified

SNOMEDCT:
22064009 – Pinta

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

Differential diagnosis varies depending on the stage of disease:

Primary and secondary lesions:
Tertiary lesions:

Best Tests

Subscription Required

Management Pearls

Subscription Required

Therapy

Subscription Required

References

Subscription Required

Last Reviewed:07/14/2021
Last Updated:07/18/2021
Copyright © 2022 VisualDx®. All rights reserved.
Pinta
A medical illustration showing key findings of Pinta (Primary Stage) : Mexico, South America, Symmetric extremities distribution, Thick scaly plaque, Pruritus, Cheeks
Clinical image of Pinta - imageId=2057099. Click to open in gallery.  caption: 'Depigmented macules and patches on the dorsal hands and fingers.'
Depigmented macules and patches on the dorsal hands and fingers.
Copyright © 2022 VisualDx®. All rights reserved.