Lumpy Skin - corticosteroids Tumors--malignant • Mast...

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    Lumpy Skin Scar tissue Warts Inflammatory reaction (tick bites) Cysts Tumors—benign/malignant
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    Warts Viral etiology—commonly young dogs (very common in horses and cattle) Most commonly around lips, on muzzle, occasionally on feet Spontaneously regress in most cases Dx—appearance, biopsy
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    Inflammatory reactions Tick bites—can be dramatic Insect bites Vaccine reactions
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    Cysts occluded follicles, contain greyish cheesy matter Most commonly on head, neck, trunk Avoid squeezing, rupture—may cause foreign body reaction Surgical removal
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    Tumors (neoplasms) Benign— Lipomas: fatty tumors, very common in older animals.Subcuticular, moveable. Fine needle aspirate usually suffices for dx. Slow growing, can excise or monitor Histiocytomas: uncommon, younger dogs. Most commonly on face. Multiple pink nodules. Dx by appearance, biopsy. Surgical excision or sublesional
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Unformatted text preview: corticosteroids Tumors--malignant • Mast cell tumors— – variable in appearance. Frequently ulcerated, edematous – May have asociated signs of GI ulcers, coagulation problems – Dx—quick screening via impression slide – Tx--prompt excision, staging of tumor, chemotherapy for disseminated tumors Tumors--malignant • Melanomas—benign and malignant forms • Difficult to distinguish, though malignant ones grow faster • Excision recommended for any melanoma Squamous cell carcinoma • Older animals,areas exposed to sun—pinnae, face • Nasty looking--ulcerated • Locally very invasive • Dx—biopsy • Surgical excision Fibrosarcomas • Not all fibrosarcomas are vaccine-related • Locally invasive, high rate of recurrence • Surgical excision with wide margins • Poorly responsive to chemo/radiation therapy...
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This note was uploaded on 11/30/2009 for the course VS 441 taught by Professor Newell during the Fall '03 term at Becker College.

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Lumpy Skin - corticosteroids Tumors--malignant • Mast...

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