• Kevin A Fajardo and Wendi E Wohltmann.
• 59th Medical Wing, Wilford Hall Ambulatory Surgical Center. 1100 Wilford Hall Loop Bldg 4554 JBSA Lackland TX 78236.
• Mil Med. 2019 Dec 1; 184 (11-12): e945-e947.

AbstractSeasonal aeroallergens commonly cause allergic conjunctivitis, rhinorrhea, sinusitis, and cough in sensitized individuals. These clinical symptoms are the result of IgE-mediated type I hypersensitivity reactions, which trigger the degranulaton of mast cells and basophils. In contrast, aeroallergens are not common precipitants of urticarial dermatitis, which is driven by a cell-mediated type IV hypersensitivity reaction. In this case report, we describe an Active Duty Air Force member stationed in San Antonio, TX, who presented to the dermatology clinic with a three year history of recalcitrant urticarial dermatitis found to be directly related to exposure to the pollen from the Juniperus ashei tree, also referred to as Mountain Cedar. While laboratory findings confirmed a high level of circulating IgE antibody to Mountain Cedar, the patient had no upper respiratory symptoms consistent with a typical allergic reaction. Further, his skin disease rapidly cleared within 24 hours of leaving southern Texas. Because of the recalcitrant nature of his condition upon returning home, he was considered unfit for further military service. This case not only highlights the growing link between IgE and chronic skin disease, but also the impact aeroallergens can have on the medical readiness and world-wide deployability of Airmen, Sailors, Soldiers, and Marines.Published by Oxford University Press on behalf of the Association of Military Surgeons of the United States 2019. This work is written by (a) US Government employee(s) and is in the public domain in the US.

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