{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T18:33:24Z","timestamp":1777919604216,"version":"3.51.4"},"reference-count":10,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2025,9,20]],"date-time":"2025-09-20T00:00:00Z","timestamp":1758326400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Vet Pathol"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:p>\n                    Seven cutaneous mast cell tumors were identified in 6 geriatric California sea lions (\n                    <jats:italic toggle=\"yes\">Zalophus californianus<\/jats:italic>\n                    ). All tumors were within the dermis and grossly appeared as single, or in one case two, less than 1-cm-diameter, well-circumscribed, raised nodules. The majority (6\/7) of the neoplasms occurred near mucocutaneous junctions (eyelid, lip, or anus). The mast cell tumors were composed of round cells arranged in sheets with poorly granulated cytoplasm or an absence of cytoplasmic granules in routine hematoxylin and eosin-stained sections. Cytology (\n                    <jats:italic toggle=\"yes\">n<\/jats:italic>\n                    \u2009=\u20091) showed adequate staining of mast cell granules with Diff-Quik and Wright-Giemsa stains. Immunohistochemistry for cKIT revealed cytoplasmic to membranous immunoreactivity in all tumors. Giemsa staining for metachromatic granules was inconsistent. No local recurrence or metastasis has been observed in the 5 living individuals with follow-up periods ranging from 6 to 42 months. Given these findings, similar poorly granulated mast cell tumors in geriatric California sea lions are suspected to have biologically benign behavior.\n                  <\/jats:p>","DOI":"10.1177\/03009858251374690","type":"journal-article","created":{"date-parts":[[2025,9,20]],"date-time":"2025-09-20T10:38:30Z","timestamp":1758364710000},"page":"218-222","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Cutaneous mast cell tumors in California sea lions (\n                    <i>Zalophus californianus<\/i>\n                    )"],"prefix":"10.1177","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0121-3174","authenticated-orcid":false,"given":"Bryce M.","family":"Miller","sequence":"first","affiliation":[{"name":"University of Georgia, Athens, GA"},{"name":"University of Florida, Gainesville, FL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4258-4414","authenticated-orcid":false,"given":"Nicole I.","family":"Stacy","sequence":"additional","affiliation":[{"name":"University of Florida, Gainesville, FL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marley","family":"Iredale","sequence":"additional","affiliation":[{"name":"University of Florida, Gainesville, FL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Judith","family":"Kovach-Zukin","sequence":"additional","affiliation":[{"name":"Joint Pathology Center, Silver Spring, MD"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elise","family":"LaDouceur","sequence":"additional","affiliation":[{"name":"Joint Pathology Center, Silver Spring, MD"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-5897-8756","authenticated-orcid":false,"given":"Kathleen","family":"Colegrove","sequence":"additional","affiliation":[{"name":"University of Illinois, Brookfield, IL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2326-4992","authenticated-orcid":false,"given":"Brittany","family":"McHale","sequence":"additional","affiliation":[{"name":"University of Georgia, Athens, GA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Grace","family":"White","sequence":"additional","affiliation":[{"name":"University of Minnesota, Falcon Heights, MN"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bethany","family":"Doescher","sequence":"additional","affiliation":[{"name":"Sea Life Park Hawaii, Waimanalo, HI"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carolina R.","family":"Le-Bert","sequence":"additional","affiliation":[{"name":"U.S. Navy Marine Mammal Program, San Diego, CA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6951-6070","authenticated-orcid":false,"given":"Robert J.","family":"Ossiboff","sequence":"additional","affiliation":[{"name":"University of Florida, Gainesville, FL"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,9,20]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1939-165X.2009.00187.x"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1098\/rstb.2014.0228"},{"key":"e_1_3_3_4_2","first-page":"255","volume-title":"CRC Handbook of Marine Mammal Medicine","author":"Colegrove KM","year":"2018","unstructured":"Colegrove KM. Noninfectious diseases. In: Gulland FMD, Dier-auf LA, Whitman KL, eds. CRC Handbook of Marine Mammal Medicine. 3rd ed. Boca Raton, FL: CRC Press; 2018:255\u2013284.","edition":"3"},{"key":"e_1_3_3_5_2","first-page":"176","volume-title":"Tumors in Domestic Animals","author":"Kiupel M","year":"2017","unstructured":"Kiupel M. Mast cell tumors. In: Meuten DJ, ed. Tumors in Domestic Animals. 5th ed. 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