Contact allergy to cinnamon: case report.
Allergic contact stomatitis is a rare disorder that is unfamiliar to most clinicians. The vast majority of cases are associated with consumption of products containing cinnamaldehyde or cinnamon essential oil, which are used as flavourings because of their pleasant taste and sensation of freshness. We report here the case of a patient who was diagnosed with alllergic contact stomatitis due to cinnamon-flavoured chewing gum. The clinical features of allergic contact stomatitis, which may occur indiscriminately on any of the oral mucosa, include edema and erythroplakic, ulcerous or hyperkeratotic changes, generally accompanied by a burning sensation. The histopathologic aspect of allergic contact stomatitis is nonspecific but tends to support the clinical diagnosis. Treatment generally consists of eliminating the causal agent. To avoid unnecessary diagnostic procedures and treatments, it is important for clinicians to recognize this disorder to be able to diagnose it quickly and accurately.
Tremblay
Steve
S
Laval University, Faculty of dentistry, 2420 De la Terrasse St., Quebec City, QC G1V 0A6. steve.tremblay@fmd.ulaval.ca
Avon
Sylvie Louise
SL
D000328:Adult; D002638:Chewing Gum / Q000009:adverse effects*; D002935:Cinnamomum zeylanicum / Q000009:adverse effects*; D017449:Dermatitis, Allergic Contact / Q000150:complications* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005421:Flavoring Agents / Q000009:adverse effects*; D006801:Humans; D006967:Hypersensitivity / Q000150:complications* / Q000473:pathology; D019226:Oral Ulcer / Q000139:chemically induced / Q000473:pathology; D010938:Plant Oils / Q000009:adverse effects; D013280:Stomatitis / Q000139:chemically induced* / Q000473:pathology
D002638:Chewing Gum; D005421:Flavoring Agents; D010938:Plant Oils