Brick's pathology results - Canine Cutaneous Histiocytoma
"MICROSCOPIC DESCRIPTION: Within the dermis and abutting the epidermis is an unencapsulated, infiltrative, well demarcated mass composed of cords and sheets of histiocytic cells. The cells have a medium amount of eosinophilic cytoplasm and a round to reniform nucleus. Mitoses are noted occasionally and a rare atypical mitoses are present. The overlying epidermis exhibits mild to moderate pseudoepitheliomatous hyperplasia, and is ulcerated with associated inflammation. Multifocal necrosis is present within the tumor, and infiltrates of lymphocytes and plasma cells are present throughout the tumor. MICROSCOPIC INTERPRETATION: Canine cutaneous histiocytoma COMMENTS: Canine cutaneous histiocytomas are common benign skin tumors of dogs. They tend to occur in young dogs, most often under 3 years of age, however older animals can be affected. Most commonly they are found on the pinnae, muzzle, extremities, and scrotum. Histiocytomas often grow rapidly and epideral ulceration is common. Typically they regress spontaneously, however most are removed due to their aggressive appearance. Recurrence is rare, as is malignant transformation. Complete surgical excision is typically curative. This lesion exhibited characteristics most consistent with a regressing histiocytoma. It appeared to be excised completely and recurrence is considered to be unlikely, however, continued close observation would be prudent. A good prognosis is justified." So a histiocytoma is a gathering of histiocytes, a product of the immune system. For whatever reason, the immune system goes nuts & releases a whole bunch of histiocytes in a localized area, which cause the bump. They are benign tumors, so no worries there. They are not indicators of any larger issue or any issue for that matter. The occurance of a histiocytoma does not mean the dog will be anymore prone to them in the future compared to a dog that never got them. There is nothing more for me to do, except keep Brick from licking/chewing the procedure area and to take him back on Monday for suture removal. After that, it's just monitoring the area for recurrence, which is considered to be unlikely. So yay. |
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| Very good news! And good educational info for us all  |
| Yes, it is very good news. I'm very relieved. |
| phew I was scared to read it. Thank goodness. Langley's lump that was drained and tested is back and slightly bigger. I am so tempted to just get it removed. It scares me. But having to put him under... They tested it and decided to put him on antibiotics. But always so worrisome when they have lumps.  |
 Good news! The stress of waiting is behind you now.....give Brick a hug!!!!  |
| good boy Brick...glad results are good if difficult to understand x |
| Great news, I am so happy for Brick and you. It is so hard to worry about our babies. Give Brick a big hug from us. |
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| Good news. Rastus had one on his nose when he was about 15 months old but it regressed before it got as big as Bricks'. He's never had any others. |
CamVal1 wrote: So yay. Master of understatement are you.  |
| Mark--that is great news! I am sure you are relieved --give Brick a big hug! |
| Good new and plz give Brick and extra hug from us. |
That was good News!  And very interesting for me and Joy, she has the same diagnosis: viewtopic.php?f=9&t=36974 If he should get lots of bumps, there are some good medicine, Ciclosporine, that helped Joy very well. Seems that she has got rid of that illness.  |
| Happy for you and Brick. |
| Good news for Bricky! (and you!) Now he needs to heal quickly so he can really romp in the snow!  |
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Jonsey wrote: Good news for Bricky! (and you!) Now he needs to heal quickly so he can really romp in the snow! It's been tough for him to romp. There's a LOT of snow in the yard because of drifting. He really has to work to get around out there. Plus he wears a bread bag over his procedure site (vet suggestion) to keep it dry when he goes out. |
| When Pooh Bear had ACL surgery the vet clinic had us use "Press and Seal" to use over the bandages if we were afraid of it getting wet. |
| Glad to hear that it's just a histiocytoma. That's exactly what the nasty looking one on Oscar turned out to be.  Press N Seal! What a great idea!!!! I will keep that in the arsenal for future use. Thanks for the tip. Laurie and Oscar |
 I Wonder if canine cutaneous histiocytomas might be something different than canine cutaneous histiocytosis?Joy had lots of bumps, looked a little different than the pics of Bricks bump. She also had trouble with her breathe and she had bumps inside her nose, throat and lungs. |
Baba wrote: CamVal1 wrote: So yay. Master of understatement are you. Ya like that?  That's my impression of one of those unaffected hipsters. |
| LOL I'm glad the Dx is excellent!!! |
| I couldn't understand the pathology report but was glad you posted at the end that Brick is okay! Hope he heals quickly and glad things are okay! |
| Darby had 2 hystiocytomas and we had both surgically removed. My grand dog Boxer had one on her ear... went away on it's own after a couple of months. So glad you received very good news! |
 I talked with my vet about Canine Cutaneous Histiocytoma and Canine Cutaneous Histiocytosis.It is the same illness. The difference is that the bumps are spread all over the body and in the mocous membrane when the dog has Cutaneous Histocytosis like Joy. Hope Brick will heal soon and that you don't need a babysitter. |
| Thanks for checking out the details, Grete! |
| Excellent news for all of you! And thanks for including the path report. It sounds great! |
| I asked my vet if there's a connection between histiocytomas and histiocytosis and she said not that she knew about. |
| Talked with my vet today too (Joy has a bump on her back): Maybe your vet thought about Histiocytose. That is something else - a kind of cancer and very different from Your Our diagnoses. When the word cutaneous is in the front like it is in cutaneous histiocytoma or cutaneous histiocytosis the tumors are benign, (That's great!) I am not a vet, so I can only tell what he says........  |
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