Accepted for/Published in: JMIR Dermatology
Date Submitted: Oct 17, 2022
Open Peer Review Period: Jul 20, 2022 - Sep 14, 2022
Date Accepted: Feb 16, 2023
Date Submitted to PubMed: Aug 26, 2023
(closed for review but you can still tweet)
Confluent and Reticulated Papillomatosis (CARP) resembling Pityriasis versicolor and Acanthosis nigricans
ABSTRACT
Background:
Confluent and reticulated papillomatosis (CARP) is a rare disorder mostly seen in young adults. It is characterized by persistent dull-brown, centrally confluent, and peripherally reticulate macules and papules which coalesce to form patches and plaques on the upper trunk and neck.
Objective:
It is commonly confused with pityriasis versicolor and acanthosis nigricans (AN).
Methods:
We report a case of 15 years old male with multiple pigmented confluent and reticulated patches and plaques on neck, trunk and chin for 3 years
Results:
It was successfully treated with oral minocycline resulting in complete resolution of lesions within 2 weeks
Conclusions:
The morphology of CARP resembles various other dermatological conditions such as acanthosis nigricans, pityriasis versicolor and as a result, it is frequently misdiagnosed and mistreated leading to social embarrassment for the patient. Therefore, it is prudent for dermatologists to carry out comprehensive clinical and histopathological assessment to facilitate prompt diagnosis and management of this condition.
Citation
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Copyright
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