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Alliaceous Axilla as a Manifestation of Olfactory Reference Syndrome

Abstract Introduction Olfactory reference syndrome (ORS) is a delusion in which a person believes that he or she exudes a displeasing body aroma that others perceive negatively. The axilla has been reported as a single primary source in only one patient. Furthermore, ORS is rarely reported to be associated with food odor. In these instances, the food is not edible. Delusions of ORS presenting as alliaceous edible food aromas have not heretofore been described. Case Report One week after undergoing catheter ablation for atrial fibrillation, this 42-year-old right-handed male experienced a sudden onset of loss of smell and taste. This has persisted on presentation and he described a complete lack of smell, only being able to smell different spices and herbs. Over time, his sense of smell selectively improved such that he was able to smell alliaceous substances, including onion and garlic, as well as a few other aromas. At the same time his smell returned, he noted that his own body exuded a smell of garlic. This occurred especially while weightlifting at the gym. He noticed that the shirts he had worn working out, in the axillary regions, were encumbered with a garlic/onion miasma. He was fearful that this mephitic aroma was being secreted through his armpits, and that others would recognize his tragomaschalia. As a result, he restricted his activities. Over a few months, his smell ability gradually worsened back to the condition he was in after the ablation. Coincident with this, his perception that he was exuding an alliaceous aroma resolved. Results Motor examination: Drift testing: mild left pronator drift. Left abductor digiti minimal sign. Olfactory testing prior to the development of ORS: Alcohol Sniff Test (AST): 0 (anosmia). Brief Smell Identification Test (B-SIT): 3 (anosmia). Olfactory testing during ORS: AST: 16 (hyposmia). B-SIT: 9 (hyposmia). Olfactory testing after resolution of ORS: AST: 0 (anosmia). Discussion This could be explained by a physiologic axillary odor or malodor, which he could not detect before or after the ORS. During the ORS, the odor may have been misperceived in a dysosmic manner due to his underlying olfactory deficit. Such dysosmia may have then been interpreted as the aroma of an alliaceous vegetable. The intensity of the aroma may have been greatest at the axillary area if compared to the other sources, but due to his underlying hyposmia, he was able to perceive only the axilla as a sole source of the aroma. Besides, psychodynamic preoccupation with bodily physique may have explained his hypersensitivity to minor flaws and his excessive preoccupation with possible harassment from others. He may have consequently misinterpreted individuals’ benign observations and attitudes to presume the presence of aroma. In individuals with olfactory deficit, this investigation for the presence of ORS with traditionally unpleasant food aromas or the presence of ORS in those with chemosensory dysfunction is warranted. Funding No funding