{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T07:05:35Z","timestamp":1791615935419,"version":"4.3.4"},"reference-count":14,"publisher":"BMJ","issue":"9","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,9,9]]},"published-print":{"date-parts":[[2024,9]]},"abstract":"<jats:p>The most common form of primary skin cancer is basal cell carcinoma (BCC). Pigmented BCC is a less common clinical presentation in BCC spectrum, where the tumour contains pigment. Some cases can exhibit morphological features that mimic those of nodular melanoma (NM). We present a woman in her late 40\u2019s who had an asymptomatic firm, hyperpigmented nodule on the right cheek resembling pigmented NM. Dermoscopy showed diffuse hyperpigmentation with irregular shiny surface and a solitary haemorrhagic crust. Melanoacanthoma and irritated seborrheic keratosis were the other differentials considered. Punch biopsy showed features of trichoepithelioma initially, subsequent complete excision was suggestive of pigmented BCC.<\/jats:p>\n                  <jats:p>Mortality related to BCC is rare, whereas NM is aggressive. Hence, clinicians need to be aware of this rare presentation of BCC as a hyperpigmented nodule, particularly in dark-skinned individuals. Timely differentiation between melanoma and BCC is crucial given their differing prognosis.<\/jats:p>","DOI":"10.1136\/bcr-2024-261362","type":"journal-article","created":{"date-parts":[[2024,9,25]],"date-time":"2024-09-25T22:40:19Z","timestamp":1727304019000},"page":"e261362","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Pigmented basal cell carcinoma mimicking nodular melanoma"],"prefix":"10.1136","volume":"17","author":[{"given":"Manila","family":"Purushottama","sequence":"first","affiliation":[{"name":"Department of Dermatology, JSS Academy of Higher Education and Research, Mysore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shankar Bharathi","family":"Ashwini","sequence":"additional","affiliation":[{"name":"Department of Dermatology, JSS Academy of Higher Education and Research, Mysore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Poovanur Sadasivam Subramanian","family":"Ranugha","sequence":"additional","affiliation":[{"name":"Department of Dermatology, JSS Academy of Higher Education and Research, Mysore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vijaya","family":"Basavaraj","sequence":"additional","affiliation":[{"name":"Department of Pathology, JSS Academy of Higher Education and Research, Mysore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2024,9,25]]},"reference":[{"key":"2025082707102217000_17.9.e261362.1","doi-asserted-by":"crossref","first-page":"202","DOI":"10.7181\/acfs.2020.00157","article-title":"Basal cell carcinoma misdiagnosed as trichoepithelioma","volume":"21","author":"Wee","year":"2020","journal-title":"Arch Craniofac Surg"},{"key":"2025082707102217000_17.9.e261362.2","doi-asserted-by":"crossref","first-page":"380","DOI":"10.4103\/0019-509X.200673","article-title":"Pigmented basal cell carcinoma: a rare case report","volume":"53","author":"Singh","year":"2016","journal-title":"Ind J Cancer"},{"key":"2025082707102217000_17.9.e261362.3","doi-asserted-by":"crossref","first-page":"460","DOI":"10.2340\/00015555-2855","article-title":"Nodular melanoma: a histopathologic entity?","volume":"98","author":"Green","year":"2018","journal-title":"Acta Derm Venereol"},{"key":"2025082707102217000_17.9.e261362.4","doi-asserted-by":"crossref","first-page":"e762","DOI":"10.1111\/jdv.17428","article-title":"The spectrum of morphologic patterns of nodular melanoma: a study of the International Dermoscopy Society","volume":"35","author":"Niforou","year":"2021","journal-title":"J Eur Acad Dermatol Venereol"},{"key":"2025082707102217000_17.9.e261362.5","first-page":"300","article-title":"Histopathologic classification and prognostic factors of melanoma: a 2021 update","volume":"156","author":"Bobos","year":"2021","journal-title":"Ital J Dermatol Venerol"},{"key":"2025082707102217000_17.9.e261362.6","unstructured":"Cohen PR , Zito PM . 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Treasure Island(FL): StatPearls Publishing, 2023."},{"key":"2025082707102217000_17.9.e261362.7","first-page":"265","article-title":"Seborrheic keratosis","volume":"21","author":"Barthelmann","year":"2023","journal-title":"J Dtsch Dermatol Ges"},{"key":"2025082707102217000_17.9.e261362.8","doi-asserted-by":"crossref","first-page":"365","DOI":"10.4103\/JCAS.JCAS_186_19","article-title":"The dermoscopy of pigmented basal cell carcinoma","volume":"13","author":"Kinnera","year":"2020","journal-title":"J Cutan Aesthet Surg"},{"key":"2025082707102217000_17.9.e261362.9","doi-asserted-by":"crossref","first-page":"1317","DOI":"10.1111\/j.1468-3083.2010.03639.x","article-title":"Correlation between the dermatoscopic and histopathological features of pigmented basal cell carcinoma","volume":"24","author":"Tabanl\u0131o\u011flu Onan","year":"2010","journal-title":"J Eur Acad Dermatol Venereol"},{"key":"2025082707102217000_17.9.e261362.10","doi-asserted-by":"crossref","first-page":"S201","DOI":"10.5021\/ad.2011.23.S2.S201","article-title":"Pigmented basal cell carcinoma of the nipple-areola complex in an elderly woman","volume":"23","author":"Jung","year":"2011","journal-title":"Ann Dermatol"},{"key":"2025082707102217000_17.9.e261362.11","doi-asserted-by":"crossref","first-page":"508","DOI":"10.4103\/0378-6323.44322","article-title":"Pigmented basal cell carcinoma of the scrotum: an unusual site","volume":"74","author":"Rao","year":"2008","journal-title":"Indian J Dermatol Venereol Leprol"},{"key":"2025082707102217000_17.9.e261362.12","doi-asserted-by":"crossref","first-page":"892","DOI":"10.1111\/ijd.14307","article-title":"Basal cell carcinoma of the vulva: a case report and systematic review of the literature","volume":"58","author":"Renati","year":"2019","journal-title":"Int J Dermatol"},{"key":"2025082707102217000_17.9.e261362.13","article-title":"Pigmented basal cell carcinoma masquerading as a melanoma","volume":"11","author":"Abudu","year":"2019","journal-title":"Cureus"},{"key":"2025082707102217000_17.9.e261362.14","article-title":"Primary basal cell carcinoma of the conjunctiva","volume":"14","author":"Low","year":"2022","journal-title":"Cureus"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2024-261362","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T14:10:28Z","timestamp":1756303828000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2024-261362"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,9]]},"references-count":14,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2024,9,25]]},"published-print":{"date-parts":[[2024,9]]}},"alternative-id":["10.1136\/bcr-2024-261362"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2024-261362","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,9]]}}}