Veterinary Medicine - September 2007 - (Page 585)

salivary gland removal. Surgically removing the sublingualmandibular salivary complex is similar in cats and in dogs and has been described.18 In cats, the molar gland is located at the angle of the mouth between the orbicularis oris muscle and the mucosa of the lower lip.9,10 It opens into the mouth through several small ducts. Surgical excision of the molar gland is best performed by making a longitudinal intraoral incision caudal to the angle of the mouth (angulus oris) and immediately cranial to the masseter muscle. It is important not to lacerate the deep facial vein, which courses along the cranial aspect of the masseter muscle. The molar gland is visible immediately below the mucosal surface. The gland is dissected free by using sharp and blunt dissection, and the associated vessels are ligated. The mucosa is closed routinely with absorbable sutures. tial diagnosis in cats with any intraoral swelling. If a mucocele is diagnosed, removal of the offending salivary tissue along with marsupialization of the mucocele is recommended for the greatest chance of a rapid resolution and a permanent cure. The long-term prognosis after appropriate surgical resection is excellent. O REFERENCES 1. Parnell NK. Diseases of the throat. In: Ettinger SJ, Feldman EC, eds. Textbook of veterinary internal medicine. 6th ed. St. Louis, Mo: Elsevier Saunders, 2004;1196-1204. 2. Harrison JD, Garrett JR. An ultrastructural and histochemical study of a naturally occurring salivary mucocele in a cat. J Comp Pathol 1975;85:411-416. 3. Rahal SC, Nunes AL, Teixeira CR, et al. Salivary mucocele in a wild cat. Can Vet J 2003; 44:933-934. 4. Speakman AJ, Baines SJ, Williams JM, et al. Zygomatic salivary cyst with mucocele formation in a cat. J Small Anim Pract 1997;38:468-470. 5. Feinman JM. Pharyngeal mucocele and respiratory distress in a cat. J Am Vet Med Assoc 1990;197:1179-1180. 6. Wallace LJ, Guffy MM, Gray AP, et al. Anterior cervical sialocele (salivary cyst) in a domestic cat. J Am Anim Hosp Assoc 1972;8:74-78. 7. Hawe RS. Parotid salivary sialocele in a cat. Feline Pract 1998;26:6-8. 8. Rahal SC, Mamprim MJ, Caporali EH, et al. Temporomandibular joint ankylosis and salivary mucocele in a cat: case report. Arq Bras Med Vet Zootec 2007;59:140-144. 9. Gilbert SG. Pictorial anatomy of the cat. Seattle: University of Washington Press, 1968;37-38. 10. Grandage J. Functional anatomy of the digestive system. In: Slatter D, ed. Textbook of small animal surgery. 2nd ed. Philadelphia, Pa: WB Saunders Co, 1993;483-502. 11. Okuda A, Inouc E, Asari M. The membranous bulge lingual to the mandibular molar tooth of a cat contains a small salivary gland. J Vet Dent 1996;13:61-64. 12. Glen JB. Canine salivary mucocoeles. Results of sialographic examination and surgical treatment of fifty cases. J Small Anim Pract 1972;13:515-526. 13. Brown NO. Salivary gland diseases. Diagnosis, treatment, and associated problems. Probl Vet Med 1989;1:281-294. 14. Lee R. Radiographic examination of localised and diffuse tissue swellings in the mandibular and pharyngeal area. Vet Clin North Am 1974;4:723-740. 15. Mason DR, Lamb CR, McLellan GJ. Ultrasonographic findings in 50 dogs with retrobulbar disease. J Am Anim Hosp Assoc 2001;37:557-562. 16. Smith MM. Surgery of the canine salivary system. Compend Contin Educ Pract Vet 1985;7:457-464. 17. Spangler WL, Culbertson MR. Salivary gland disease in dogs and cats: 245 cases (1985-1988). J Am Vet Med Assoc 1991;198:465-469. 18. Harvey C. Oral cavity: the tongue, lips, cheeks, pharynx, and salivary glands. In: Slatter D, ed. Textbook of small animal surgery. 2nd ed. Philadelphia, Pa: WB Saunders Co, 1993;510-520. 19. Harrison JD, Garrett JR. Experimental salivary mucoceles in cat. A histochemical study. J Oral Pathol 1975;4:297-306. 20. DeYoung DW, Kealy JK, Kluge JP. Attempts to produce salivary cysts in the dog. Am J Vet Res 1978;39:185-186. Pathogenesis The pathogenesis of salivary mucoceles has not been firmly established. It is thought that trauma to the gland or duct system may lead to their development, but experimental attempts to create mucoceles have not reliably re-created the syndrome.19,20 Although three cats in this series were indoor-outdoor, no history of trauma was present in any of the cases. It is likely that a primary problem with a salivary gland or duct system may be a predisposing factor for salivary mucocele formation. Although no case reports exist, theoretically, a salivary mucocele could be the result of a neoplastic process. So if any excised tissue appears abnormal, it should be submitted for histologic examination. CONCLUSION In this case series, the most common presenting complaint was related to the presence of a ranula, which may cause respiratory stridor or gastrointestinal signs. Although uncommon, a salivary mucocele should be a differen- EXTRA See for information on common salivary gland neoplasms in cats. VETERINARY MEDICINE September 2007 585 http://www.vetstreamfelis.com/ACI/September/VMD2/dis00634.asp http://virbacvet.com http://virbacvet.com

Table of Contents Feed for the Digital Edition of Veterinary Medicine - September 2007

Contents Letters Leading Off The Veterinary Medicine Interview: Dr. William J. Kay Idea Exchange Practical Matters Salivary Mucoceles in Cates: A Retropspective Study of Seven Cases Hyperlipidemia in Dogs and Cats Purina Insert The Latest Management Recommendations for Cats and Dogs with Nonketotic Diabetes Mellitus CE Form Product Preview Advertiser Index Marketplace/Classifieds Mind Over Miller

Veterinary Medicine - September 2007

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