{"id":665,"date":"2021-06-15T10:30:25","date_gmt":"2021-06-15T15:30:25","guid":{"rendered":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/?p=665"},"modified":"2021-06-02T15:54:59","modified_gmt":"2021-06-02T20:54:59","slug":"ocular-lesions-in-cattle-series-part-ii-cancer-eye","status":"publish","type":"post","link":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/ocular-lesions-in-cattle-series-part-ii-cancer-eye\/","title":{"rendered":"Ocular Lesions in Cattle Series:\u00a0 Part II: Cancer Eye"},"content":{"rendered":"<hr \/>\n<p><span style=\"font-weight: 400\">Ocular squamous cell carcinoma (SCC or cancer eye) is the most common tumor in cattle.\u00a0 Early eye lesions can be benign, while more advanced lesions tend to be malignant and metastasize (spread) to other organs.\u00a0 The cause of cancer eye is not positively known. It is associated with a lack of pigmentation around the eye and chronic irritation, often coming from solar radiation (sunlight) or other eye conditions such as pinkeye.\u00a0 Genetics and maintaining a high plane of nutrition are also associated with the development of SCC. It is most commonly seen in Hereford cattle, and some Simmental and Holsteins where non-pigmented eyelids are present.<a href=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/Ocular-lesions-in-cattle-Part-II-Img-2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-658 alignleft\" src=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/Ocular-lesions-in-cattle-Part-II-Img-2.jpg\" alt=\"\" width=\"299\" height=\"395\" \/><\/a><\/span><\/p>\n<p><span style=\"font-weight: 400\">Similar to pinkeye, animals affected with cancer eye are painful and may be observed squinting and have a partially closed eye with excess tearing. It\u2019s important to check the cow more closely if you observe any of these signs to differentiate pinkeye from cancer eye. Any wart-like growth, erosion, or scab on the eyelid or on or around the eye should be examined more closely or recorded so that you can recheck it later.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Lesions usually begin as small plaques or growths on the edge of the colored part of the eye.\u00a0 These can be easily treated if detected early. Older lesions may appear like a wart or papilloma, usually rising from the third eyelid on the medial or inner edge of the eye.\u00a0 Cancerous lesions that have damaged the eye beyond repair but have not yet displayed signs of metastasis or movement to adjacent lymph nodes can be surgically removed by enucleation or removal of the eye.\u00a0 Once the cancer has spread to other organs and lymph nodes, the animal needs to be culled as soon as possible or when her calf is weaned; the carcass from that animal will likely be condemned.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Cancer eye results in signific<a href=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/Ocular-lesions-in-cattle-Part-II-Img-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-657 alignright\" src=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/Ocular-lesions-in-cattle-Part-II-Img-1.jpg\" alt=\"\" width=\"339\" height=\"446\" \/><\/a>ant economic loss due to condemnation at slaughter and a shortened productive life.\u00a0 Losses can be minimized if producers follow some specific management criteria. Examine the eyes of your cattle at least on a yearly basis and have your veterinarian examine any suspicious lesions that you detect.\u00a0 Select breeding stock with pigmentation around their eyes. \u00a0 The cancer is considered to be heritable, so do not retain offspring from affected cattle as replacements.\u00a0 \u00a0 Early treatment of ocular problems in cattle can mean the difference between a healed versus a salvaged animal.\u00a0 Remember the key to successful treatment is early detection, so consult your veterinarian whenever you notice a suspicious lesion or swelling on or around the eye.<\/span><\/p>\n<p><!--more--><\/p>\n<p><a href=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/cancerpinkeye-comparrison-chart.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-666\" src=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/cancerpinkeye-comparrison-chart.png\" alt=\"Pink Eye &amp; Cancer Eye Comparison Chart\" width=\"611\" height=\"521\" srcset=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/cancerpinkeye-comparrison-chart-300x255.png 300w, https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/cancerpinkeye-comparrison-chart-768x653.png 768w, https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2021\/05\/cancerpinkeye-comparrison-chart-353x300.png 353w\" sizes=\"auto, (max-width: 611px) 100vw, 611px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ocular squamous cell carcinoma (SCC or cancer eye) is the most common tumor in cattle.\u00a0 Early eye lesions can be benign, while more advanced lesions tend to be malignant and metastasize (spread) to other organs.\u00a0 The cause of cancer eye &hellip; <a href=\"https:\/\/blogs.extension.msstate.edu\/theriskproject\/ocular-lesions-in-cattle-series-part-ii-cancer-eye\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":51,"featured_media":486,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[2],"tags":[],"coauthors":[22],"class_list":["post-665","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-animal-health"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/files\/2020\/11\/Cattle-50.jpg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7pWHv-aJ","_links":{"self":[{"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/posts\/665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/users\/51"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/comments?post=665"}],"version-history":[{"count":2,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/posts\/665\/revisions"}],"predecessor-version":[{"id":669,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/posts\/665\/revisions\/669"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/media\/486"}],"wp:attachment":[{"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/media?parent=665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/categories?post=665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/tags?post=665"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.extension.msstate.edu\/theriskproject\/wp-json\/wp\/v2\/coauthors?post=665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}