• Welcome to the Chronicle Forums.
    Please complete your profile. The forums and the rest of www.chronofhorse.com has single sign-in, so your log in information for one will automatically work for the other. Disclaimer: The opinions expressed here are the views of the individual and do not necessarily reflect the views and opinions of The Chronicle of the Horse.

Announcement

Collapse

Forum rules and no-advertising policy

As a participant on this forum, it is your responsibility to know and follow our rules. Please read this message in its entirety.

Board Rules

1. You’re responsible for what you say.
As outlined in Section 230 of the Communications Decency Act, The Chronicle of the Horse and its affiliates, as well Jelsoft Enterprises Ltd., the developers of vBulletin, are not legally responsible for statements made in the forums.

This is a public forum viewed by a wide spectrum of people, so please be mindful of what you say and who might be reading it—details of personal disputes are likely better handled privately. While posters are legally responsible for their statements, the moderators may in their discretion remove or edit posts that violate these rules. Users have the ability to modify or delete their own messages after posting, but administrators generally will not delete posts, threads or accounts upon request.

Outright inflammatory, vulgar, harassing, malicious or otherwise inappropriate statements and criminal charges unsubstantiated by a reputable news source or legal documentation will not be tolerated and will be dealt with at the discretion of the moderators.

2. Conversations in horse-related forums should be horse-related.
The forums are a wonderful source of information and support for members of the horse community. While it’s understandably tempting to share information or search for input on other topics upon which members might have a similar level of knowledge, members must maintain the focus on horses.

3. Keep conversations productive, on topic and civil.
Discussion and disagreement are inevitable and encouraged; personal insults, diatribes and sniping comments are unproductive and unacceptable. Whether a subject is light-hearted or serious, keep posts focused on the current topic and of general interest to other participants of that thread. Utilize the private message feature or personal email where appropriate to address side topics or personal issues not related to the topic at large.

4. No advertising in the discussion forums.
Posts in the discussion forums directly or indirectly advertising horses, jobs, items or services for sale or wanted will be removed at the discretion of the moderators. Use of the private messaging feature or email addresses obtained through users’ profiles for unsolicited advertising is not permitted.

Company representatives may participate in discussions and answer questions about their products or services, or suggest their products on recent threads if they fulfill the criteria of a query. False "testimonials" provided by company affiliates posing as general consumers are not appropriate, and self-promotion of sales, ad campaigns, etc. through the discussion forums is not allowed.

Paid advertising is available on our classifieds site and through the purchase of banner ads. The tightly monitored Giveaways forum permits free listings of genuinely free horses and items available or wanted (on a limited basis). Items offered for trade are not allowed.

Advertising Policy Specifics
When in doubt of whether something you want to post constitutes advertising, please contact a moderator privately in advance for further clarification. Refer to the following points for general guidelines:

Horses – Only general discussion about the buying, leasing, selling and pricing of horses is permitted. If the post contains, or links to, the type of specific information typically found in a sales or wanted ad, and it’s related to a horse for sale, regardless of who’s selling it, it doesn’t belong in the discussion forums.

Stallions – Board members may ask for suggestions on breeding stallion recommendations. Stallion owners may reply to such queries by suggesting their own stallions, only if their horse fits the specific criteria of the original poster. Excessive promotion of a stallion by its owner or related parties is not permitted and will be addressed at the discretion of the moderators.

Services – Members may use the forums to ask for general recommendations of trainers, barns, shippers, farriers, etc., and other members may answer those requests by suggesting themselves or their company, if their services fulfill the specific criteria of the original post. Members may not solicit other members for business if it is not in response to a direct, genuine query.

Products – While members may ask for general opinions and suggestions on equipment, trailers, trucks, etc., they may not list the specific attributes for which they are in the market, as such posts serve as wanted ads.

Event Announcements – Members may post one notification of an upcoming event that may be of interest to fellow members, if the original poster does not benefit financially from the event. Such threads may not be “bumped” excessively. Premium members may post their own notices in the Event Announcements forum.

Charities/Rescues – Announcements for charitable or fundraising events can only be made for 501(c)(3) tax-exempt organizations. Special exceptions may be made, at the moderators’ discretion and direction, for board-related events or fundraising activities in extraordinary circumstances.

Occasional posts regarding horses available for adoption through IRS-registered horse rescue or placement programs are permitted in the appropriate forums, but these threads may be limited at the discretion of the moderators. Individuals may not advertise or make announcements for horses in need of rescue, placement or adoption unless the horse is available through a recognized rescue or placement agency or government-run entity or the thread fits the criteria for and is located in the Giveaways forum.

5. Do not post copyrighted photographs unless you have purchased that photo and have permission to do so.

6. Respect other members.
As members are often passionate about their beliefs and intentions can easily be misinterpreted in this type of environment, try to explore or resolve the inevitable disagreements that arise in the course of threads calmly and rationally.

If you see a post that you feel violates the rules of the board, please click the “alert” button (exclamation point inside of a triangle) in the bottom left corner of the post, which will alert ONLY the moderators to the post in question. They will then take whatever action, or no action, as deemed appropriate for the situation at their discretion. Do not air grievances regarding other posters or the moderators in the discussion forums.

Please be advised that adding another user to your “Ignore” list via your User Control Panel can be a useful tactic, which blocks posts and private messages by members whose commentary you’d rather avoid reading.

7. We have the right to reproduce statements made in the forums.
The Chronicle of the Horse may copy, quote, link to or otherwise reproduce posts, or portions of posts, in print or online for advertising or editorial purposes, if attributed to their original authors, and by posting in this forum, you hereby grant to The Chronicle of the Horse a perpetual, non-exclusive license under copyright and other rights, to do so.

8. We reserve the right to enforce and amend the rules.
The moderators may delete, edit, move or close any post or thread at any time, or refrain from doing any of the foregoing, in their discretion, and may suspend or revoke a user’s membership privileges at any time to maintain adherence to the rules and the general spirit of the forum. These rules may be amended at any time to address the current needs of the board.

Please see our full Terms of Service and Privacy Policy for more information.

Thanks for being a part of the COTH forums!

(Revised 1/26/16)
See more
See less

Tell me about bone cancer in horses

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Tell me about bone cancer in horses

    I know it's rare, I know it's deadly.

    I'm devastated that all signs are pointing to this in one of my most beloved, and talented homebred dressage horses. I'll know more tomorrow.

    Need to get my arms around this and need to know more.

    Thanks.
    www.littlebullrun@aol.com See Little Bull Run's stallions at:
    "Argosy" - YouTube and "Boleem" - YouTube
    Boleem @ 1993 National Dressage Symposium - YouTube

  • #2
    You're right, osteosarcoma is so rare in horses they really don't even teach anything about it to us in vet school. And it's 100% malignant.
    What signs is your horse showing? Were radiographs taken already? I think a biopsy is indicated.

    I found one article in the vet pathology journal where they had 8 documented cases of osteosarcoma in horses. This is the abstract (I have full text but I think you need a university subscription to get it). This is from 2007.

    Equine Osteosarcoma: A Series of 8 Cases
    J. M. Bush, R. L. Fredrickson and E. J. Ehrhart
    Colorado State University, Department of Microbiology, Immunology, and Pathology, Fort Collins, CO (JMB, EJE); and University of Illinois, Department of Pathobiology, Urbana-Champaign, IL (RLF)
    Abstract

    In horses, osteosarcoma is a rare tumor, with the majority of reported cases occurring in the head, and, more specifically, in the mandible of young horses. The following report documents 8 cases of equine osteosarcoma, the majority occurring in male horses aged 7 years or older with a lack of metastasis identified in any horse. Six arose in the maxilla or mandible and one in the proximal tibia. The predominant subtype was fibroblastic osteosarcoma with fewer osteoblastic type tumors. All had osteoid and most had a chondromucinous matrix. Surgical excision was attempted in the majority of cases. An inability to completely excise the tumor and progressive disease typically resulted in euthanasia. To the authors' knowledge, this case series also documents the first report of an equine extraosseous osteosarcoma within the subcutaneous tissue caudal to the shoulder. Surgical excision appears successful with no recurrence of disease 14 months later. Further investigations of equine osteosarcoma and various chemotherapeutic agents are warranted to present additional treatment options.


    As with dogs, the biggest factor affecting prognosis is if the tumor can be fully removed surgically. Unfortunately, as it usually happens in the head in horses, this is not possible. The tumor continues to grow and affect the horse's ability to eat and breathe, making it very difficult for owners to allow their horses to live, so most are euthanized.
    Dogs usually have limbs amputated and even then have only up to 2 years survival (which actually is quite good, but surgery is only to relieve pain, not cure the disease). Osteosarcoma is not very responsive to radiation therapy.
    There are a few more articles floating around online about osteosarcoma in the hock and tibia, but I'm having trouble accessing them.

    I hope this was somewhat helpful...and I'm very sorry if this is truly what your beloved horse has.

    Comment

    • Original Poster

      #3
      A bone "tumor" is suspected at the top of the LH cannon bone. Horse holding leg in the air intermittently. No stifle issue, no hoof issue. Just holds her leg in the air intermittently,though she's doing it more often and raising the leg higher. Eats well, walks sound. Stall confined at once until the diagnosis could be made.

      We initially suspected a greenstick fracture, but have not been able to fully confirm with radiographs over the last 3 weeks. That should be apparent by now with bony changes. But now we see another problem on the films a bit higher up (not fully radiographed the first time done). Repeat of films higher appear to show an anomaly.....then today we find a melanoma on the jaw that wasn't there 3 weeks ago. Has lost about 100 lbs. in 3 days. She is an air fern. Being stalled she should be gaining, not losing.

      This is worsing fast, despite the stall confinement. Lots of bloodwork today and more films. Results to go to Nat White at Morven Park for his assessment.

      I can't quite go into detail objectively and succinctly as I normally to when I post for the "greater" educational good (as I usually do...the science head that I am) right now.

      Because the thought this rarity hitting this particular horse (I bred and delivered her, now age 16... who is real superstar under saddle) at this age, with this talent, and at this point in my life to be my teacher now that I can get back in the saddle (being selfish here) is simply devastating at the moment.
      www.littlebullrun@aol.com See Little Bull Run's stallions at:
      "Argosy" - YouTube and "Boleem" - YouTube
      Boleem @ 1993 National Dressage Symposium - YouTube

      Comment


      • #4
        Hmm, I wonder if you're dealing with 2 different diseases at once. Osteosarcoma does not produce skin lesions. Melanoma is not a cancer that metastasizes to bones. In fact, I don't think it's ever been documented that melanoma has bony metastasis.
        There has been only one case ever documented where it spread to the bone marrow.

        I wouldn't be so quick to link the two things... the melanoma can be surgically taken out, and if you horse has one, chances are he's got more, but that's totally separate right now from the leg thing. Take a deep breath, and try to work through one thing at a time... I know it's really hard with everything happening at once, but each thing can be dealt with separately.

        Comment

        • Original Poster

          #5
          Pancakes...yes, we know the two may not be linked. But there are "zebras" out there when it comes to cliinical symptoms of a disease process. I've had my share. Just thought it was worth noting.
          www.littlebullrun@aol.com See Little Bull Run's stallions at:
          "Argosy" - YouTube and "Boleem" - YouTube
          Boleem @ 1993 National Dressage Symposium - YouTube

          Comment


          • #6
            Yes, you're right that there may be something greater at work here... I'm just trying to put things into perspective to give perhaps better outlook

            Comment

            • Original Poster

              #7
              Not being negative (only realistic) from what I glean, this not good. I'm not a giver-upper. Most people who know me, also know the kind of time, money, sweat and tears I devote to my horses. I've been at this for 22 years and almost all of my horses are homebreds, so I've been lucky enough to see alot,medically, over their lifetime.

              Just want give my girl as much comfort and care as I can with information from others who may have had a horse with this affliction...if that is indeed what she has.
              www.littlebullrun@aol.com See Little Bull Run's stallions at:
              "Argosy" - YouTube and "Boleem" - YouTube
              Boleem @ 1993 National Dressage Symposium - YouTube

              Comment


              • #8
                I hope the vets are wrong, it brings tears to my eyes and bad memories.
                A friend's TB stallion had Melanomas for a few years then shattered his front cannon bone because of cancer in it. I had a Paint stallion that had cancer in his upper jaw, his teeth started loosening up then fell out. We had him put down as soon as we found out for sure. It was hard to do, he looked so healthy and did not seem to be in any pain. Major jingles to you and your girl.

                Comment


                • #9
                  Any results yet? I've been thinking of you and praying for a treatable outcome.

                  Comment

                  • Original Poster

                    #10
                    Scan indicates upper femur fracture, with possible muscle pulling away from bone as well.

                    Digital xrays today to see the extent of the fracture -- IF they can get them. Typically they get films of the upper femur them under a general, but that is too risky since she could have a catastrophic break coming out from under. Hopefully, she'll cooperated and they can glean something that will indicate what the prognosis will be.

                    BTW, what was suspect as possible bone cancer in a film here at the farm was her chestnut (we redid the films and put two tacks at the top and bottom of the chestnut to confirm that's what we were seeing). We'll deal with her melanoma once I know more -- separate issue.

                    Thanks for asking.
                    www.littlebullrun@aol.com See Little Bull Run's stallions at:
                    "Argosy" - YouTube and "Boleem" - YouTube
                    Boleem @ 1993 National Dressage Symposium - YouTube

                    Comment


                    • #11
                      Sorry about your girl, sid. How did it happen?

                      Jingles for a full recovery.
                      A Merrick N Dream Farm
                      Proud Member of "Someone Special to me serves in the Military" Clique

                      Comment

                      • Original Poster

                        #12
                        No way to know. No evidence of any external trauma, like a kick or getting cast. I can only presume she took a freak fall out in the field (I'm a little hilly) when the ground was wet.
                        www.littlebullrun@aol.com See Little Bull Run's stallions at:
                        "Argosy" - YouTube and "Boleem" - YouTube
                        Boleem @ 1993 National Dressage Symposium - YouTube

                        Comment


                        • #13
                          That is very good info about the chestnuts causing the anomalous area on the earlier xray! Thinking positive that everything is treatable....
                          Jeanie
                          RIP Sasha, best dog ever, pictured shortly before she died, Death either by euthanasia or natural causes is only the end of the animal inhabiting its body; I believe the spirit lives on.

                          Comment


                          • #14
                            Originally posted by sid View Post
                            Not being negative (only realistic) from what I glean, this not good. I'm not a giver-upper. Most people who know me, also know the kind of time, money, sweat and tears I devote to my horses. I've been at this for 22 years and almost all of my horses are homebreds, so I've been lucky enough to see alot,medically, over their lifetime.

                            Just want give my girl as much comfort and care as I can with information from others who may have had a horse with this affliction...if that is indeed what she has.
                            sid i lost 4 to cancer of various forms, vets cant commit themselves to how long ones got
                            and they cant say how much pain they in either
                            weight loss-- star gazing, intermittence spasmatic colic, headshaking,
                            listless, no engery nero logial as in cant co ordinate legs lies down a lot
                            pecks at food rather eat food pecks at grass rather than grazz
                            touchy as in sensitive mood swings as in facial expressions of pain
                            whinnies as in dont know for what reason or neighs softly as in help me type thing
                            horses can get mouth cancer if shes lifting her leg higher then its more than likely attacking her rear end and pelvis back area she could be lifting her leg to releive pain
                            also this would be her head end -- horses are funny sods
                            point of tail is poll end if the horse is in pain
                            i would be looking more at her head than her rear end
                            for exsample-- a horse that drags its toes on the front end is more likely to have hock issues as the horse cant get his hocks underneath him so the toes drag
                            now bone spavins do that but they also creath an illusion of a bad back as well as toe dragging
                            yet if a horse is senesitive is his bum end - its more likely to be the poll end
                            as butt to poll and visa versa as for the yaw thing this would make perfect sense that something would show up in the head region
                            having lost a horse from abrian tumour which was my mare sons
                            i learnt a lot about cancer over the years with horses and how its can effect them and attack them i find it also interesting to i think
                            lighter coloured horses are like ginger people they have one lest layer of skin so they the uv rays attacks them mreoso same as a ginger perosn dont brown often they go red
                            so perhaps thats why they are subject to more meloma than a darker horses i dont know just guessing well thats my theory


                            anything which ends in sarcincoma is maglinant which when one has cancer can attack and run through the body at rapid speeds attacking alll the vital organs unless you have pot of dosh thats endless you cant examine a whole horse and its nto going to go away
                            i have learn from my1st one that when horses play up look deeper as to why rather than think its tack or normal things like that if you elimate those then your left with medical problems
                            you can trail and error as much foodstuffs as you like it wont work, and in my personal expreince i would say 4-6weeks maxs
                            once they have gone from a big fat thing to nothing its attacking the insides
                            now you can make the horse as comfortable as you like but you have to ask yourself are you being fair are you doing it for you or for the horse and is the quality of life there
                            if its not then pts -----

                            Comment

                            Working...
                            X