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Dengue fever rash with islands of sparing
Corresponding author: Dr. Rohit Kothari, Department of Dermatology, 12 Air Force Hospital, Gorakhpur, India. rohitkothari3422@gmail.com
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How to cite this article: Kothari R, Kumar R. Dengue fever rash with islands of sparing. Indian J Dermatol Venereol Leprol. 2024;90:850. doi: 10.25259/IJDVL_682_2024
A 16-year-old boy was admitted with high-grade fever, myalgia, and joint pain for 5 days. On the fourth day of fever, he developed a generalised non-itchy macular erythematous rash with intervening areas of normal skin and a linear purpura over his back [Figure 1]. The palms, soles, and mucosae were normal. Investigations revealed NS1Ag positive and reduced platelet count (80,000/µL). He was diagnosed with dengue fever rash with characteristic ‘islands of sparing’ or ‘white islands in a sea of red’ hypothesised secondary to an immune response to the virus. There is a belief that this rash pattern occurs when platelet count starts becoming normal. He was treated with antipyretics and plenty of oral fluids. A follow-up after 1 week showed no fever and complete resolution of the rash.
- Diffuse macular erythematous rash with characteristic ‘islands of sparing’ and linear purpura over the back of the patient.
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The authors confirm that there was no use of artificial intelligence (AI)-assisted technology for assisting in the writing or editing of the manuscript and no images were manipulated using AI.
