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The hyperkeratosis in AI can range from the mild, white\u2010to\u2010brown scaling resembling that in ichthyosis vulgaris (IV) to the more prominent dark brown scaling phenotype, similar to that found in lamellar ichthyosis. The disease can wax and wane in relation to endogenous and\/or exogenous factors. Histopathology of AI is similar to that found in IV. AI is usually of cosmetic concern to patients but can, in some cases, reflect the presence of more serious conditions, including malignancies, autoimmune diseases or metabolic disorders. In some cases, AI can be an adverse effect of a medication or the cutaneous symptom of a toxic exposure. Other conditions, such as severe xerosis or eczema, can present with clinical findings similar to AI, making diagnosis a challenge. Furthermore, cases of AI are sporadic throughout the literature and have been documented across a wide variety of medical settings distinct from dermatology, which often contribute to misdiagnosis of this disease. Definitive management requires prompt identification and treatment of the inciting factors combined with conservative therapies, which can include topical emollients, keratolytics, retinoids or corticosteroids, and in rare cases, oral retinoids.<\/jats:p>","DOI":"10.1111\/jdv.18608","type":"journal-article","created":{"date-parts":[[2022,9,27]],"date-time":"2022-09-27T12:51:56Z","timestamp":1664283116000},"page":"47-56","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Acquired ichthyosis, asteatotic dermatitis or xerosis? 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