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Confluent and reticulated papillomatosis in Child
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Confluent and reticulated papillomatosis in Child

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Contributors: Elizabeth B. Wallace MD, Susan Burgin MD
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Synopsis

Confluent and reticulated papillomatosis (also known as confluent and reticulated papillomatosis of Gougerot and Carteaud or Gougerot-Carteaud syndrome) is a rare cutaneous dermatosis of undetermined etiology with clinical features resembling acanthosis nigricans and tinea versicolor. It has been speculated that the disorder may be due to an endocrine disturbance, abnormal keratinocyte differentiation and maturation, an abnormal host reaction to bacteria or fungi, or that it may be hereditary. Onset is usually at puberty, but the age range of those affected has been reported to be from 5-63 years.

It is clinically characterized by brown, hyperkeratotic or verrucous, thin papules that usually affect the upper central trunk and axillae. These papules coalesce into reticulated plaques. The lesions are usually asymptomatic but may be pruritic. The disorder typically affects young adults. While responsive to treatment, the disease is usually chronic and marked by exacerbations and remissions.

Diagnostic criteria have been proposed by Davis et al (Ann Dermatol. 2014 Jun;26[3]:409-410) due to frequent misdiagnosis of this condition and include the following: (i) clinical findings include scaly brown macules and patches, with at least some appearing reticulated and papillomatous; (ii) involvement of the upper trunk and neck; (iii) negative fungal staining of the scales; (iv) no response to antifungal treatment; and (v) excellent response to minocycline. A second research group proposed revised criteria to include clinical involvement of the flexural areas and management with antibiotics, rather than minocycline specifically.

Codes

ICD10CM:
L83 – Acanthosis nigricans

SNOMEDCT:
89987007 – Confluent AND reticulate papillomatosis

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Last Reviewed: 04/10/2017
Last Updated: 06/01/2017
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Confluent and reticulated papillomatosis in Child
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Confluent and reticulated papillomatosis : Pigmented plaque, Reticular configuration, Reticular - netlike, Superior chest, Upper back
Clinical image of Confluent and reticulated papillomatosis
A close-up of confluent scaly, hyperpigmented, ridged papules.
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