Paeds SAQs · paediatric-dermatology
Acne vulgaris in adolescents — formative SAQs
Formative SAQs on acne vulgaris in the adolescent: grading the comedonal versus the inflammatory disease, building the stepwise ladder of the topical retinoid and the benzoyl peroxide, the oral doxycycline with the antibiotic stewardship, and the oral isotretinoin with the pregnancy prevention and the lipid and liver monitoring, and escalating the acne fulminans and the hormonal female-pattern acne of the polycystic ovary syndrome.
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SAQ 1 — A 15-year-old boy with moderate inflammatory acne
Stem. A 15-year-old boy presents with a one-year history of open and closed comedones across his forehead and cheeks, now with increasing red papules and pustules and a few tender nodules on his jawline and upper back. He has become withdrawn and has stopped swimming. He has tried over-the-counter washes without success. Outline your assessment and your stepwise management. (10 marks, 15 minutes) [1] [2]
Assessment (3 marks). Take the onset, distribution, flare factors, prior treatments and adherence, the menstrual question is not applicable, the family history of severe or scarring acne, the diet and the cosmetics, and — above all — the psychosocial impact, because his withdrawal from swimming signals the distress that the lesion count hides. Examine and grade the severity on a reproducible scale, record the proportion of the comedonal versus the inflammatory lesions, look for the early atrophic scarring and the post-inflammatory hyperpigmentation, and note the truncal involvement. Screen the mood and self-harm risk. The diagnosis is clinical and no routine test is needed. [1] [9]
Mild-to-moderate rung (2 marks). Begin the topical retinoid — the adapalene 0.1 per cent gel as a thin film to the whole affected area at night — and the benzoyl peroxide 2.5 per cent by day. Counsel the dryness, the photosensitivity, and the sunscreen, and warn that the adapalene, not the tretinoin, is the photostable retinoid that combines safely with the benzoyl peroxide. The improvement is judged at six to eight weeks. [1] [11]
References6ShowHide
- [1]Reynolds RV, Yeung H, Cheng CE, et al. Guidelines of care for the management of acne vulgaris Journal of the American Academy of Dermatology, 2024.PMID 38300170
- [2]Eichenfield DZ, Sprague J, Eichenfield LF. Management of Acne Vulgaris: A Review JAMA, 2021.PMID 34812859
- [5]Bagatin E, Costa CS. The use of isotretinoin for acne - an update on optimal dosing, surveillance, and adverse effects Expert Review of Clinical Pharmacology, 2020.PMID 32744074
- [7]Zhu C, Wei B, Li Y, et al. Antibiotic resistance rates in Cutibacterium acnes isolated from patients with acne vulgaris: a systematic review and meta-analysis Frontiers in Microbiology, 2025.PMID 40535003
- [9]Gieler U, Gieler T, Kupfer JP. Acne and quality of life - impact and management Journal of the European Academy of Dermatology and Venereology, 2015.PMID 26059729
- [11]Santer M, Burden-Teh E, Ravenscroft J. Managing acne vulgaris: an update Drug and Therapeutics Bulletin, 2023.PMID 38154809