{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T20:10:04Z","timestamp":1756325404161,"version":"3.44.0"},"reference-count":26,"publisher":"BMJ","issue":"9","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,8,30]]},"published-print":{"date-parts":[[2024,9]]},"abstract":"<jats:p>Cutaneous angiosarcoma (cAS) is a rare malignant neoplasm of vascular endothelial origin with an unfavourable prognosis. Its diagnosis often faces delays due to its manifestation as an inconspicuous \u2018bruise-like\u2019 lesion in an otherwise asymptomatic individual, leading to a generally low index of suspicion for angiosarcoma. Here, we present a case of a man who presented to his general practitioner with an ecchymotic plaque on his forehead, initially thought to be benign. Over the subsequent 6\u2009weeks, the lesion progressively enlarged and became ulcerated, prompting the patient to represent to his general practitioner. He was urgently referred to a dermatologist and a subsequent biopsy confirmed the diagnosis of cAS. Our presentation of this case serves as a reminder for physicians to maintain a high index of suspicion and low threshold for biopsy for patients with atraumatic ecchymotic lesions.<\/jats:p>","DOI":"10.1136\/bcr-2023-258751","type":"journal-article","created":{"date-parts":[[2024,9,12]],"date-time":"2024-09-12T14:57:01Z","timestamp":1726153021000},"page":"e258751","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Recognising angiosarcoma presenting as an enlarging ecchymotic plaque"],"prefix":"10.1136","volume":"17","clinical-trial-number":[{"clinical-trial-number":"nct02815995","registry":"10.18810\/clinical-trials-gov"}],"author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2013-1860","authenticated-orcid":false,"given":"Michelle","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Dermatology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Theone","family":"Papps","sequence":"additional","affiliation":[{"name":"The Skin Hospital, Darlinghurst, New South Wales, Australia"},{"name":"Department of Dermatology, Royal North Shore Hospital, St Leonards, New South Wales, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruno","family":"Blaya-Alvarez","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia"},{"name":"The Skin Hospital, Darlinghurst, New South Wales, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,9,12]]},"reference":[{"key":"2025082712394425000_17.9.e258751.1","first-page":"2303","article-title":"Angiosarcoma: a review of diagnosis and current treatment","volume":"9","author":"Cao","year":"2019","journal-title":"Am J Cancer 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