{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,10]],"date-time":"2025-11-10T12:30:36Z","timestamp":1762777836840,"version":"build-2065373602"},"reference-count":19,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2025,11,10]],"date-time":"2025-11-10T00:00:00Z","timestamp":1762732800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dermatopathology"],"abstract":"<jats:p>A 56-year-old patient presented to our dermatology clinic with asymmetric hyperpigmentation on her lower lip, which had developed over the previous six to twelve months. Her medical history included kidney and pancreas transplants, requiring chronic immunosuppression, and two lip filler injections with hyaluronic acid (HA). Clinical examination revealed irregular pigmented macules limited strictly to the lower lip. Histological analysis showed epidermal melanosis, pigmentary incontinence, solar elastosis, and amorphous dermal HA deposits, without evidence of melanocytic hyperplasia or granulomatous inflammation.<\/jats:p>","DOI":"10.3390\/dermatopathology12040041","type":"journal-article","created":{"date-parts":[[2025,11,10]],"date-time":"2025-11-10T11:47:27Z","timestamp":1762775247000},"page":"41","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Asymmetric Lip Hyperpigmentation in a Transplant Patient"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5505-989X","authenticated-orcid":false,"given":"Vincent","family":"Kimpe","sequence":"first","affiliation":[{"name":"Department of Dermatology and Venereology, University Hospital of Geneva, 1205 Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5351-860X","authenticated-orcid":false,"given":"David","family":"Alvarez Martinez","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, University Hospital of Geneva, 1205 Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2989-6264","authenticated-orcid":false,"given":"S\u00e9bastien","family":"Menzinger","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, University Hospital of Geneva, 1205 Geneva, Switzerland"},{"name":"Clinical Pathology Department, University Hospital of Geneva, 1205 Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4957-549X","authenticated-orcid":false,"given":"G\u00fcrkan","family":"Kaya","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, University Hospital of Geneva, 1205 Geneva, Switzerland"},{"name":"Clinical Pathology Department, University Hospital of Geneva, 1205 Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,10]]},"reference":[{"key":"ref_1","first-page":"644","article-title":"Drug-Induced Hyperpigmentation: A Systematic Review","volume":"11","author":"Krause","year":"2013","journal-title":"J. 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