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Monographs of fragrance chemicals and extracts that have caused contact allergy / allergic contact dermatitis
Published in Anton C. de Groot, Monographs in Contact Allergy, 2021
A 27-year-old woman presented with a patchy, dark brown hyperpigmentation on the face. Patch tests were positive to lemon oil, geraniol and hydroxycitronellal, but negative to a cosmetic she used, a compact face powder. A ROAT with this product, however, was positive. The face powder contained lemon oil and geraniol. The hyperpigmentation disappeared within 6 months after the patient avoided contact with cosmetics containing these fragrances. The diagnosis was pigmented cosmetic dermatitis, which the authors called Riehl’s melanosis. It was ascribed to geraniol contact allergy, but a phototoxicity reaction to lemon oil was not excluded (47).
Catalog of Herbs
Published in James A. Duke, Handbook of Medicinal Herbs, 2018
Arrowroot starch, derived from the rootstock, is an important ingredient in the preparation of baby foods, biscuits, cakes, puddings, and pastries. Rhizomes may also be eaten boiled or roasted. The starch prevents the coarse curdling of milk. The starch grains average about 30 to 40 μm in diameter, making them more digestible for infants and convalescents. Arrowroot starch used as a base for face powder and glues. Sometimes used as a suspension agent.
Treatments for Sensitive Skin
Published in Golara Honari, Rosa M. Andersen, Howard Maibach, Sensitive Skin Syndrome, 2017
Martina Kerscher, Heike Buntrock
After the improvement of the abnormal sensory symptoms, which often might take 6–12 months (15), well-tolerated products without potentially irritating ingredients can be individually reintroduced into everyday use. In order to define exactly which products are easily tolerated, the patient should add one facial product every 2 weeks (15), starting with the least problematic. Draelos (13) recommends one facial cosmetic of low-allergenic potential per week in the following order: lipstick, face powder, powder blush. To integrate new products into a skin care regimen, individual testing could be performed by applying new products nightly, for at least five nights, to a 2 cm area lateral to the eye (13).
Research & Clinical Vignette Winners of Maryland ACP Chapter Mulholland Mohler Virtual Residents Meeting
Published in Journal of Community Hospital Internal Medicine Perspectives, 2020
A 52-year-old woman with no smoking or intravenous drug use history presented with dyspnea on exertion in 2018. CT chest showed diffuse centrilobular ground-glass nodules bilaterally. Her labs showed positive p-ANCA, but inconclusive transbronchial biopsies. Presumed diagnosis of Granulomatosis with Polyangiitis was made and she was prescribed prednisone and cyclophosphamide. The patient then had multiple hospitalizations for pneumonia and pleural effusions with worsening cough, weight loss, and functional status. On presentation for failure to thrive 1 year later, repeat CT chest showed bilateral centrilobular nodules with upper lobe predominance. Differential diagnosis included rheumatologic, malignant, hypersensitive, infectious, and neuroendocrine etiologies, but were inconsistent with history, symptoms, and labs, including repeat negative p-ANCA. Transbronchial biopsy showed high talc burden consistent with inhalation talcosis. Patient then admitted to excessive application of face powder for 2 years prior to initial presentation.