{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T11:21:46Z","timestamp":1783423306534,"version":"3.54.6"},"reference-count":14,"publisher":"BMJ","issue":"7","license":[{"start":{"date-parts":[[2021,7,1]],"date-time":"2021-07-01T00:00:00Z","timestamp":1625097600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/bmj.com\/coronavirus\/usage"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,6,21]]},"published-print":{"date-parts":[[2021,7]]},"abstract":"<jats:p>A 52-year-old man presented with a recurrent right side breast lump. He had undergone excision of a lump on the right breast followed by adjuvant chemoradiotherapy 1\u2009year ago for a diagnosis of pleomorphic liposarcoma. Imaging revealed a 47\u00d736\u2009mm lesion on the right side of the chest wall involving the pectoralis muscle. The patient underwent right radical mastectomy. Histology of the specimen showed an undifferentiated pleomorphic sarcoma infiltrating into the underlying skeletal muscle. Therefore, he was planned for chemoradiotherapy. But due to lockdown during the COVID-19 pandemic, he was lost to follow-up and later presented with malignant pleural effusion. This case emphasises the impact of COVID-19 pandemic over such rare malignancies.<\/jats:p>","DOI":"10.1136\/bcr-2021-244056","type":"journal-article","created":{"date-parts":[[2021,7,20]],"date-time":"2021-07-20T11:58:34Z","timestamp":1626782314000},"page":"e244056","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Pleomorphic liposarcoma of the male breast: lessons from a rare malignancy during COVID-19 pandemic"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9183-2317","authenticated-orcid":false,"given":"Brijesh Kumar","family":"Singh","sequence":"first","affiliation":[{"name":"Surgery, All India Institute of Medical Sciences, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9498-6744","authenticated-orcid":false,"given":"Manjunath Maruti","family":"Pol","sequence":"additional","affiliation":[{"name":"Surgery, All India Institute of Medical Sciences, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshib","family":"G A","sequence":"additional","affiliation":[{"name":"Surgery, All India Institute of Medical Sciences, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adarsh Wamanrao","family":"Barwad","sequence":"additional","affiliation":[{"name":"Department of Pathology, All India Institute of Medical Sciences, New Delhi, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2021,7,20]]},"reference":[{"key":"2025082802220742000_14.7.e244056.1","doi-asserted-by":"crossref","first-page":"310","DOI":"10.1007\/s11748-010-0696-6","article-title":"Liposarcoma of the chest wall: a case potentially transformed from a recurrent lipoma","volume":"59","author":"Jeong","year":"2011","journal-title":"Gen Thorac Cardiovasc Surg"},{"key":"2025082802220742000_14.7.e244056.2","doi-asserted-by":"crossref","DOI":"10.2484\/rcr.v9i2.906","article-title":"Dedifferentiated liposarcoma of the adult male breast","volume":"9","author":"Raj","year":"2014","journal-title":"Radiol Case Rep"},{"key":"2025082802220742000_14.7.e244056.3","doi-asserted-by":"crossref","DOI":"10.1016\/j.eclinm.2020.100503","article-title":"Suboptimal declines and delays in early breast cancer treatment after COVID-19 quarantine restrictions in China: a national survey of 8397 patients in the first quarter of 2020","volume":"26","author":"Li","year":"2020","journal-title":"EClinicalMedicine"},{"key":"2025082802220742000_14.7.e244056.4","doi-asserted-by":"crossref","first-page":"241","DOI":"10.4048\/jbc.2011.14.3.241","article-title":"Undifferentiated pleomorphic sarcoma of the male breast causing diagnostic challenges","volume":"14","author":"Jeong","year":"2011","journal-title":"J Breast Cancer"},{"key":"2025082802220742000_14.7.e244056.5","doi-asserted-by":"crossref","first-page":"194","DOI":"10.9738\/INTSURG-D-13-00108.1","article-title":"Intramuscular atypical lipomatous tumor\/well-differentiated liposarcoma of the pectoralis major masquerading as a breast tumor: management and review of the literature","volume":"100","author":"Salemis","year":"2015","journal-title":"Int Surg"},{"key":"2025082802220742000_14.7.e244056.6","doi-asserted-by":"publisher","DOI":"10.1007\/s002560050214"},{"key":"2025082802220742000_14.7.e244056.7","doi-asserted-by":"crossref","first-page":"iv51","DOI":"10.1093\/annonc\/mdy096","article-title":"Soft tissue and visceral sarcomas: ESMO\u2013EURACAN clinical practice guidelines for diagnosis, treatment and follow-up","volume":"1","author":"Casali","year":"2018","journal-title":"Ann Oncol"},{"key":"2025082802220742000_14.7.e244056.8","unstructured":"Breast Cancer Diagnosis, Treatment and Follow-Up During COVID-19 Pandemic [Internet]. 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