{"id":236,"date":"2013-06-04T21:53:22","date_gmt":"2013-06-04T21:53:22","guid":{"rendered":"http:\/\/www.pottonvets.co.uk\/?p=236"},"modified":"2026-03-17T10:53:09","modified_gmt":"2026-03-17T10:53:09","slug":"dog-lumps-and-bumps-histiocytoma","status":"publish","type":"post","link":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/","title":{"rendered":"Dog lumps and bumps – histiocytoma"},"content":{"rendered":"
\n

What is a\u00a0Histiocytoma<\/strong>?<\/h2>\n

These are usually angry looking, raised, hairless masses found on the skin of young dogs.
\nThe most common areas are on the head, limbs and ears (often the front end of the body).
\nThese are benign lesions and usually regress within a period of 3 months.
\n\"Informative<\/p>\n

How to make a diagnosis:<\/strong><\/h2>\n

Appearance
\nAge of the dog
\nLocation
\nCytology
\nCytology is a very useful tool in diagnosing histiocytoma, the appearance is relatively typical.\u00a0\u00a0Cytology also\u00a0helps to exclude other growths\u00a0which can\u00a0look similar.<\/em>
\n <\/p>\n

What to do once a histiocytoma is diagnosed:<\/strong><\/h2>\n

Once we are confident that a lump is a histiocytoma and it is not causing distress, we tend to monitor them regularly and allow them to regress spontaneously \u2013 this usually happens in 6 to 8 week period.
\nHowever these masses can be very irritating or be associated with infections\/reactions, or regression may not progress as expected \u2013 in which case medication or removal and histopathology is indicated.<\/p>\n

\n\"InformativeCan\u2019t we just leave all lumps to see if they disappear?<\/strong><\/h2>\n

The simple answer is \u2013 this is a bad idea, and not in\u00a0your pets best interests. There are many lumps that can look similar, some of these are very malignant, and the sooner they are removed the better. For example, mast cell tumours (MCT) are a very common and malignant tumour and can look exactly the same as a histiocytoma. We believe that using cytology helps us make choices that are in the best interest of your pets health at the early, and most important stage of evaluating tumours.\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

What is a\u00a0Histiocytoma? These are usually angry looking, raised, hairless masses found on the skin of young dogs. The most common areas are on the head, limbs and ears (often the front end of the body). These are benign lesions and usually regress within a period of 3 months. How to make a diagnosis: Appearance […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-236","post","type-post","status-publish","format-standard","hentry","category-pet-care"],"acf":[],"yoast_head":"\nDog lumps and bumps - histiocytoma - Potton Veterinary Surgery<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dog lumps and bumps - histiocytoma - Potton Veterinary Surgery\" \/>\n<meta property=\"og:description\" content=\"What is a\u00a0Histiocytoma? These are usually angry looking, raised, hairless masses found on the skin of young dogs. The most common areas are on the head, limbs and ears (often the front end of the body). These are benign lesions and usually regress within a period of 3 months. How to make a diagnosis: Appearance […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/\" \/>\n<meta property=\"og:site_name\" content=\"Potton Veterinary Surgery\" \/>\n<meta property=\"article:published_time\" content=\"2013-06-04T21:53:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-17T10:53:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg\" \/>\n<meta name=\"author\" content=\"ben\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ben\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/\"},\"author\":{\"name\":\"ben\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/#\/schema\/person\/630f610e09d324e0d1f81c175a29624c\"},\"headline\":\"Dog lumps and bumps – histiocytoma\",\"datePublished\":\"2013-06-04T21:53:22+00:00\",\"dateModified\":\"2026-03-17T10:53:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/\"},\"wordCount\":267,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg\",\"articleSection\":[\"Pet Care\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/\",\"url\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/\",\"name\":\"Dog lumps and bumps - histiocytoma - Potton Veterinary Surgery\",\"isPartOf\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg\",\"datePublished\":\"2013-06-04T21:53:22+00:00\",\"dateModified\":\"2026-03-17T10:53:09+00:00\",\"author\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/#\/schema\/person\/630f610e09d324e0d1f81c175a29624c\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage\",\"url\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg\",\"contentUrl\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Dog lumps and bumps – histiocytoma\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/#website\",\"url\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/\",\"name\":\"Potton Veterinary Surgery\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/#\/schema\/person\/630f610e09d324e0d1f81c175a29624c\",\"name\":\"ben\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/820836fab9f739fca2f25ce86cda3eb9efcb0bbba82c1a0d3eeacb43f4a26e47?s=96&d=mm&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/820836fab9f739fca2f25ce86cda3eb9efcb0bbba82c1a0d3eeacb43f4a26e47?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/820836fab9f739fca2f25ce86cda3eb9efcb0bbba82c1a0d3eeacb43f4a26e47?s=96&d=mm&r=g\",\"caption\":\"ben\"},\"url\":\"https:\/\/www.pottonvets.co.uk\/prometheus\/author\/ben\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Dog lumps and bumps - histiocytoma - Potton Veterinary Surgery","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_GB","og_type":"article","og_title":"Dog lumps and bumps - histiocytoma - Potton Veterinary Surgery","og_description":"What is a\u00a0Histiocytoma? These are usually angry looking, raised, hairless masses found on the skin of young dogs. The most common areas are on the head, limbs and ears (often the front end of the body). These are benign lesions and usually regress within a period of 3 months. How to make a diagnosis: Appearance […]","og_url":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/","og_site_name":"Potton Veterinary Surgery","article_published_time":"2013-06-04T21:53:22+00:00","article_modified_time":"2026-03-17T10:53:09+00:00","og_image":[{"url":"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg","type":"","width":"","height":""}],"author":"ben","twitter_card":"summary_large_image","twitter_misc":{"Written by":"ben","Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#article","isPartOf":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/"},"author":{"name":"ben","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/#\/schema\/person\/630f610e09d324e0d1f81c175a29624c"},"headline":"Dog lumps and bumps – histiocytoma","datePublished":"2013-06-04T21:53:22+00:00","dateModified":"2026-03-17T10:53:09+00:00","mainEntityOfPage":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/"},"wordCount":267,"commentCount":0,"image":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage"},"thumbnailUrl":"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg","articleSection":["Pet Care"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/","url":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/","name":"Dog lumps and bumps - histiocytoma - Potton Veterinary Surgery","isPartOf":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage"},"image":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage"},"thumbnailUrl":"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg","datePublished":"2013-06-04T21:53:22+00:00","dateModified":"2026-03-17T10:53:09+00:00","author":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/#\/schema\/person\/630f610e09d324e0d1f81c175a29624c"},"breadcrumb":{"@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#primaryimage","url":"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg","contentUrl":"https:\/\/www.pottonvets.co.uk\/prometheus\/wccms-admin\/staging\/wccms-resources\/8\/5\/5\/3\/08c80d26-4e7a-11e1-a685-0050568626ea.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/dog-lumps-and-bumps-histiocytoma\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.pottonvets.co.uk\/prometheus\/"},{"@type":"ListItem","position":2,"name":"Dog lumps and bumps – histiocytoma"}]},{"@type":"WebSite","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/#website","url":"https:\/\/www.pottonvets.co.uk\/prometheus\/","name":"Potton Veterinary Surgery","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.pottonvets.co.uk\/prometheus\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/www.pottonvets.co.uk\/prometheus\/#\/schema\/person\/630f610e09d324e0d1f81c175a29624c","name":"ben","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/secure.gravatar.com\/avatar\/820836fab9f739fca2f25ce86cda3eb9efcb0bbba82c1a0d3eeacb43f4a26e47?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/820836fab9f739fca2f25ce86cda3eb9efcb0bbba82c1a0d3eeacb43f4a26e47?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/820836fab9f739fca2f25ce86cda3eb9efcb0bbba82c1a0d3eeacb43f4a26e47?s=96&d=mm&r=g","caption":"ben"},"url":"https:\/\/www.pottonvets.co.uk\/prometheus\/author\/ben\/"}]}},"_links":{"self":[{"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/posts\/236","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/comments?post=236"}],"version-history":[{"count":1,"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/posts\/236\/revisions"}],"predecessor-version":[{"id":4431,"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/posts\/236\/revisions\/4431"}],"wp:attachment":[{"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/media?parent=236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/categories?post=236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pottonvets.co.uk\/prometheus\/wp-json\/wp\/v2\/tags?post=236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}