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Eyelid Tumors

Eyelid Tumors

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Eyelid Tumors

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  1. Eyelid Tumors By Emily Thielke

  2. Eyelid Neoplasm or eyelid tumors are found in both cats and dogs but mostly in older dogs • Some breeds that are • predisposed to eyelid • masses include: • Poodles • Labrador Retrievers • Cocker Spaniel • Samoyed • Siberian Husky • Cock-a-poo • Alaskan Malamute • Cairn Terrier • Dachshund • Shih Tzu • Basset Hounds

  3. Canine Eyelid Neoplasm • Usually benign • May be based on clinical appearance • Often originate from the glands located within the eyelid margin

  4. Meibomian (sebaceous) Adenoma • Most common in dogs • It rises from the meibomian gland and found near the meibomianorifice • Can be confused with sebaceous hyperplasias

  5. Symptoms • Elevated, nodular masses and are usually 2-5 mm in diameter • May appear black or brown but often appear as yellowish or tan on cut section • May exhibit alopecia, hyperpigmentation and ulceration with secondary infection • May be itchy and inflamed

  6. Other less common Eyelid Tumors in Dogs • Melanoma • Papilloma • Histiocytoma

  7. Dx and Tx • Fine needle aspiration with cytology followed by histopathology and tissue biopsy are often used to confirm what kind of tumor we are dealing with • Surgery is often recommended to remove the eyelid tumor however they may reoccur more than once

  8. Feline Eyelid Neoplasm • Less common in cats but are often more malignant • Not all masses of the eyelids are tumors though. Some are fungal infections and others can be inflammation

  9. Squamous Cell Carcinoma • Most common • Commonly found in cats with white or pink eyelids • Common in outdoor cats with prolonged sun exposure

  10. Symptoms • Ulcerated and reddened area on eyelid margin • Excessive tearing • Mucoidor pus-like discharge from the eye • Cloudiness, bluish haze or film covering the cornea • Frequent pawing or rubbing of the eye • Increased blinking or squinting of the eyelids

  11. Other Eyelid Tumors in Cats • Basal Cell Carcinoma • Fibrosarcoma • Mast cell tumor

  12. Dx • Complete medical history and physical examination • Complete ophthalmic examination • Fluorescein staining of the cornea • Bacterial culture of secretions from the eye • Fungal culture and cytology • Fine needle aspirate • Tissue biopsy • Chest X-rays to look for possible spread of the tumor

  13. Tx • Surgical removal • Surgical reconstructive techniques to preserve protection of the eye • Small mast cell tumors may respond to systemic corticosteroids or locally injected corticosteroids • Cryotherapy, freezing of the tumor • If large enough, may also involve removal of the eye

  14. Indications for Surgery • An eyelid mass should be removed : • The mass becomes too large • Concern about malignancy • Corneal or Conjunctival irritation • The patient is traumatizing the mass • Also the owner may just want it removed for cosmetic purposes

  15. Procedure • The patient is placed in sternal or lateral recumbency • Specialized eye drapes are used ( precut hole placed over the eye and secured in place with towel clamps) • Surgically clip the surrounding area and scrub • Flush eye with saline to remove any debris

  16. Surgical Supplies • Bishop-Harman forceps • Chalazion Forceps • Jaegar Lid Plate • Stevens Tonotomy Scissors • Needle Holders

  17. Options : Wedge Resection Chalazion forceps or Jaeger lid plate are used for stabilization A full thickness incision is made using a sharp dissection The incision is then closed using two layers

  18. CVT's Role • Our role in this procedure is mostly client education other than handing the tools to the DVM, assisting as the scrub nurse during the procedure or taking vitals • Important issues to address to the client would be : • Eyelid tumors can reoccur multiple times • Monitoring their activity so as to not open the incision • Monitor incision for infection and keep it clean • Use of an Elizabethan collar may be needed to keep the animal from causing more trauma to the eye • Follow up appointments are necessary

  19. However, there is nothing we can tell the owner for prevention purposes, unless we get to educate them on the breed of dog they choose, and even then it can still happen in breeds that are not predisposed to eyelid tumors • Educating them on how to care for their animal after the treatment plan is about all we can do.

  20. Referances Canine Cancer: Sebaceous and Modified Sebaceous Gland Tumors Artical from National Canine Cancer Foundation (2010) Retrieved on 2-23-11 from http://dogtime.com/sebaceous-and-modified-sebaceous-gland-tumors-canine-cancer-library.html Eyelid Tumors in Dogs   By: Dr. Noelle McNabb(1999-2010) Retrieved on 2-23-11 from http://www.petplace.com/dogs/eyelid-tumors-in-dogs/page1.aspx Eyelid Tumors in CatsBy: Dr. Noelle McNabb (1999-2010) Retrieved on 2-23-11 from http://www.petplace.com/cats/eyelid-tumors-in-cats/page1.aspx Small Animal Surgical Nursing Skills and Concepts by: Sara J. Busch (2006 Mosby Inc) Retrieved on 2-23-11 from Chapter 7 Specific Procedures Ophthalmic Procedures Pages 225-232