{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,3,31]],"date-time":"2022-03-31T11:03:06Z","timestamp":1648724586534},"reference-count":7,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2021,6,27]],"date-time":"2021-06-27T00:00:00Z","timestamp":1624752000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,6,27]],"date-time":"2021-06-27T00:00:00Z","timestamp":1624752000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["surg case rep"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>Breast cancer patients are known to develop brain metastasis at a relatively high frequency. However, imaging findings of brain metastases vary, and it is sometimes very difficult to distinguish these from other tumorous lesions and non-neoplastic lesions, such as cerebral hemorrhage. Meanwhile, there are various causes of cerebral hemorrhage; a major one is cerebral amyloid angiopathy (CAA). With the advancement of imaging technology, CAA-related cerebral hemorrhage can be more precisely diagnosed with magnetic resonance imaging (MRI), but definitive diagnosis of CAA can only be made based on pathological assessment. Herein, we report a case of consciousness disorder appearing during adjuvant therapy for breast cancer. We initially considered that the patient\u2019s cerebral hemorrhage was due to a metastatic tumor, but based on excisional biopsy, she was diagnosed with CAA.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Case presentation<\/jats:title>\n                <jats:p>A 73-year-old Japanese woman underwent curative surgery for left breast cancer. Her disease was hormone receptor-positive and human epidermal growth factor receptor 2 (HER2)-positive invasive ductal carcinoma (pStage IIB). While receiving adjuvant treatment, she developed disorientation, and emergent imaging revealed multiple cerebral hemorrhages. There was no apparent enhancement in the cerebral parenchyma on MRI, and differential diagnosis included hemorrhage due to a metastatic tumor, intravascular large B-cell lymphoma, CAA and thrombotic intracranial bleeding. After hospitalization, the bleeding lesion enlarged, resulting in cerebral hernia, and she needed emergency drainage surgery. The tissue surrounding the hemorrhage was pathologically assessed, and she was diagnosed with CAA. Although we initially suspected the lesion to be a metastatic tumor from breast cancer, there were no tumorous cells.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Atypical MRI findings made diagnosis difficult in this case, but it should be considered for differential diagnosis when multiple cerebral hemorrhages in elderly patients are observed, especially in cases with symptoms such as transient multifocal neurological deficits and dementia.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s40792-021-01225-4","type":"journal-article","created":{"date-parts":[[2021,6,27]],"date-time":"2021-06-27T17:02:43Z","timestamp":1624813363000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Cerebral hemorrhage due to amyloid angiopathy that was difficult to differentiate from breast cancer metastasis: a case report"],"prefix":"10.1186","volume":"7","author":[{"given":"Toshitaka","family":"Uomori","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiya","family":"Horimoto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masashi","family":"Takanashi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayana","family":"Shikanai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katsuya","family":"Nakai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Astushi","family":"Arakawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitsue","family":"Saito","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,6,27]]},"reference":[{"key":"1225_CR1","doi-asserted-by":"publisher","first-page":"369","DOI":"10.1007\/s11060-018-2805-9","volume":"138","author":"A Darlix","year":"2018","unstructured":"Darlix A, Griguolo G, Thezenas S, Kantelhardt E, Thomssen C, Dieci MV, Miglietta F, Conte P, Braccini AL, Ferrero JM, Bailleux C, Jacot W, Guarneri V. Hormone receptors status: a strong determinant of the kinetics of brain metastases occurrence compared with HER2 status in breast cancer. J Neurooncol. 2018;138:369\u201382.","journal-title":"J Neurooncol"},{"key":"1225_CR2","doi-asserted-by":"publisher","first-page":"3608","DOI":"10.1200\/JCO.2004.01.175","volume":"22","author":"NU Lin","year":"2004","unstructured":"Lin NU, Bellon JR, Winer EP. CNS metastases in breast cancer. J Clin Oncol. 2004;22:3608\u201317.","journal-title":"J Clin Oncol"},{"key":"1225_CR3","first-page":"2349","volume":"52","author":"Y Tsukada","year":"1983","unstructured":"Tsukada Y, Fouad A, Pickren JW, Lane WW. Central nervous system metastasis from breast carcinoma. Autopsy study Cancer. 1983;52:2349\u201354.","journal-title":"Autopsy study Cancer"},{"key":"1225_CR4","doi-asserted-by":"publisher","first-page":"106150","DOI":"10.1016\/j.clineuro.2020.106150","volume":"197","author":"J Santos","year":"2020","unstructured":"Santos J, Arantes J, Carneiro E, Ferreira D, Silva SM, Palma de Sousa S, Arantes M. Brain metastases from breast cancer. Clin Neurol Neurosurg. 2020;197:106150.","journal-title":"Clin Neurol Neurosurg"},{"key":"1225_CR5","doi-asserted-by":"publisher","first-page":"1311","DOI":"10.1159\/000511051","volume":"13","author":"R Semba","year":"2020","unstructured":"Semba R, Horimoto Y, Arakawa A, Edahiro Y, Takaku T, Iijima K, Saito M. Difficulty diagnosing a brain tumor during clinical maintenance of a complete response to anti-HER2 treatments for metastatic breast cancer: a case report. Case Rep Oncol. 2020;13:1311\u20136.","journal-title":"Case Rep Oncol"},{"key":"1225_CR6","doi-asserted-by":"publisher","first-page":"823","DOI":"10.1111\/j.1468-1331.2009.02940.x","volume":"17","author":"M Hirohata","year":"2010","unstructured":"Hirohata M, Yoshita M, Ishida C, Ikeda SI, Tamaoka A, Kuzuhara S, Shoji M, Ando Y, Tokuda T, Yamada M. Clinical features of non-hypertensive lobar intracerebral hemorrhage related to cerebral amyloid angiopathy. Eur J Neurol. 2010;17:823\u20139.","journal-title":"Eur J Neurol"},{"key":"1225_CR7","doi-asserted-by":"publisher","first-page":"1346","DOI":"10.1212\/WNL.0b013e3181dad605","volume":"74","author":"J Linn","year":"2010","unstructured":"Linn J, Halpin A, Demaerel P, Ruhland J, Giese AD, Dichgans M, van Buchem MA, Bruckmann H, Greenberg SM. Prevalence of superficial siderosis in patients with cerebral amyloid angiopathy. Neurology. 2010;74:1346\u201350.","journal-title":"Neurology"}],"container-title":["Surgical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s40792-021-01225-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s40792-021-01225-4\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s40792-021-01225-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,6,27]],"date-time":"2021-06-27T17:03:13Z","timestamp":1624813393000},"score":1,"resource":{"primary":{"URL":"https:\/\/surgicalcasereports.springeropen.com\/articles\/10.1186\/s40792-021-01225-4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,27]]},"references-count":7,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021,12]]}},"alternative-id":["1225"],"URL":"https:\/\/doi.org\/10.1186\/s40792-021-01225-4","relation":{},"ISSN":["2198-7793"],"issn-type":[{"value":"2198-7793","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,6,27]]},"assertion":[{"value":"8 December 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"2 June 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"27 June 2021","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Written informed consent was obtained from the patient for publication of this case report.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests in this case.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"150"}}