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Cureus. 2022 Mar 19;14(3):e23308. doi: 10.7759/cureus.23308. eCollection 2022 Mar.


Rosacea granulomatosis is a common, chronic skin disorder that primarily affects the central face, namely the cheek, nose, chin, and central forehead. Although rosacea is mainly a disorder of innate and adaptive immunity, a variety of endogenous and exogenous triggers such as Demodex may stimulate it. Often found as commensal organisms in human skin, Demodex ​​​​​​​can be parasitic if there is a change in the host's cutaneous environment. This is especially relevant for immunosuppressed patients, who need prompt treatment to prevent further complications. We review the literature regarding rosacea granulomatosis in immunosuppression and present an acute myelogenous leukemia patient with severe neutropenia, which may have promoted the development of rosacea due to Demodex ​​​​​​​mite proliferation. This local proliferation of the ectoparasite on the face can cause an atypical skin rash that mimics severe infections in the setting of neutropenia.

PMID:35464516 | PMC:PMC9015070 | DOI:10.7759/cureus.23308

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