This is a cat that had severe uveitis with secondary glaucoma. The eye was
removed and submitted for histopathology . The results were compatible with
ocular chondrosarcoma. Ocular sarcomas in cats are a common result of chronic uveitis,  and a previous trauma/eye surgery , even years before presentation.
many times we remove large cancerous subcutaneous masses that require a wide excision and then we encounter the problem of not having enough skin to close the defect. One solution is to create an axial skin flap, in which the blood supply is preserved. Click here to see how an omocervical flap is used to cover a large axillary defect
Linear foreign bodies occur both in dogs and cats. Surgery should be done as soon as possible.
Remember to always check around the base of the tounge because often in cats it wrapps around the tongue.
Click here to learn about how to use a red rubber catheter intraoperatively in order to remove these foreign bodies while avoiding multiple enterotomies
This is from a 3 years old female dog that had a pyometra. During surgery I have noticed that the left ovary was increased in size (about the size of a golf ball). The histoathology results showed an ovarian teratoma, and multiple cystic corpora lutea.. The tumor included neuronal tissue, keratinized cells and ciliary cells.  This is a benign tumor that is often found in young females.
This cat was presented with a visible abdominal mas. On ultrasound the mass seemed to be attached to the stomach and cytology showed multiple mast cell tumors. The mass was removed and came back as eosinophilic sclerotic granulomatous gastritis. This is an uncommon condition in cats, a result of parasites , and certain bacteria.  Most cases actually do not need surgican excisin and respond well to prednisolone.
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This doggie was febrile and pretty sick, but did great once started on prednisone
The arrow is pointing to 2 small raised lesions on the toungue. Cytology revealed multiple eosinophils
This cat was presented to me after his owner noticed extensive bruising all over his abdomen.  After ruling out bleeding disorders a biopsy was taken and revealed lymphangiosarcoma. Lymphangiosarcoma is not common, and if caught early enough can be excized. This case was non-operable, and the cat had 3 chemotherapy treatments which have shrunk the tumor to an operable size. The tumor was removed succesfully but during the recovery period the cat developed a severe MRSA infection and was euthanized. 
This one is a ferral cat that belonged to a colony that was treated by one of my clients. It took her a while to be able to catch him and when she did it was too late. The diagnosis was osteosarcoma.
This dog was presented with an acute purpura.
After ruling out bleeding disorders a biopsy was taken and indicated vasculitis. 
Cutaneous vasculitis is an uncommon immune-mediated
inflammatory disease of the blood vessels. Aberrant immune
response leads to inflammation and necrosis of blood vessels.

 Possible causes in veterinary patients are an underlying
infection caused by a virus, bacteria (e.g. Bartonella species),
fungus, protozoa (e.g. Leishmania species2), or rickettsial
disease; food hypersensitivity; malignancy; drug reaction (e.g.
meloxicam, human albumin); rabies vaccination; metabolic
disease; systemic lupus erythematosus; and cold agglutinin
disease. The disease may also be idiopathic.