• 1.

    French SL, Anthony JMG. Surgical removal of a radicular odontogenic cyst in a four-year-old Dalmatian dog. J Vet Dent 1996;13:149151.

  • 2.

    Beckman BW. Radicular cyst of the premaxilla in a dog. J Vet Dent 2003;20:213217.

  • 3.

    Poulet FM, Valentine BA, Summers BA. A survey of epithelial odontogenic tumors and cysts in dogs and cats. Vet Pathol 1992;29:369380.

  • 4.

    Watanabe K, Kadosawa T, Ishiguro T, et al. Odontogenic cysts in three dogs: one odontogenic keratocyst and two dentigerous cysts. J Vet Med Sci 2004;66:11671170.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5.

    Doran I, Pearson G, Barr F, et al. Extensive bilateral odontogenic cysts in the mandible of a dog. Vet Pathol 2008;45:5860.

  • 6.

    Kramek BA, O'Brien TD, Smith FO. Diagnosis and removal of a dentigerous cyst complicated by ameloblastic fibro-odontoma in a dog. J Vet Dent 1996;13:911.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7.

    Field EA, Speechtey JA, Jones DE. The removal of an impacted maxillary canine and associated dentigerous cyst in a Chow: a case report. J Small Anim Pract 1982;23:159163.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8.

    Lobprise HB, Wiggs RB. Dentigerous cyst in a dog. J Vet Dent 1992;9:1315.

  • 9.

    Baxter CJK. Bilateral mandibular dentigerous cysts in a dog. J Small Anim Pract 2004;45:210212.

  • 10.

    Head KW, Cullen JM, Dubielzig RR, et al. Cyst of the jaws. In: Histological classification of the tumors of the alimentary system. 2nd series. Vol X. Washington, DC: Armed Forces Institute of Pathology, 2003;5455.

    • Search Google Scholar
    • Export Citation
  • 11.

    Regezi JA, Sciubba JJ, Jordan RCK. Cysts of the jaws and neck. In: Regezi JA, Sciubba JJ, Jordan RCK, eds. Oral pathology clinical pathologic correlations. 4th ed. St Louis: Saunders, 2003;241265.

    • Search Google Scholar
    • Export Citation
  • 12.

    Shear M. Cysts of the jaws: recent advances. J Oral Pathol 1985;14:4359.

  • 13.

    Toller MO, Sipahier M, Acikgoz A. CT display of multiple dentigerous cysts of the mandible: a case report. J Clin Pediatr Dent 1995;19:135137.

    • Search Google Scholar
    • Export Citation
  • 14.

    Okita W, Ichimura K, Iinuma T. Dentigerous cyst of the maxilla and its image diagnosis. Rhinology 1991;29:307314.

  • 15.

    Carlson ER. Odontogenic cysts and tumors. In: Miloro M, ed. Peterson's principles of oral and maxillofacial surgery. 2nd ed. Hamilton, ON, Canada: BC Decker Inc, 2004;575596.

    • Search Google Scholar
    • Export Citation
  • 16.

    MacEwen EG, Withrow SJ, Patnaik AK. Nasal tumors in the dog: retrospective evaluation of diagnosis, prognosis, and treatment. J Am Vet Med Assoc 1977;170:4548.

    • Search Google Scholar
    • Export Citation
  • 17.

    Beck ER, Withrow SJ. Tumors of the canine nasal cavity. Vet Clin North Am Small Anim Pract 1985;15:521533.

  • 18.

    Adams WM, Withrow SJ, Walshaw R, et al. Radiotherapy of malignant nasal tumors in 67 dogs. J Am Vet Med Assoc 1987;191:311315.

  • 19.

    Thrall DE, Harvey CE. Radiotherapy of malignant nasal tumors in 21 dogs. J Am Vet Med Assoc 1983;183:663666.

  • 20.

    Théon AP, Madewell BR, Harb MF, et al. Megavoltage irradiation of neoplasms of the nasal and paranasal cavities in 77 dogs. J Am Vet Med Assoc 1993;202:14691475.

    • Search Google Scholar
    • Export Citation
  • 21.

    Adams WM, Miller PE, Vail DM, et al. An accelerated technique for irradiation of malignant canine nasal and paranasal sinus tumors. Vet Radiol Ultrasound 1998;39:475481.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 22.

    Adams WM, Bjorling DE, McAnulty JF, et al. Outcome of accelerated radiotherapy alone or accelerated radiotherapy followed by exenteration of the nasal cavity in dogs with intranasal neoplasia: 53 cases (1990–2002). J Am Vet Med Assoc 2005;227:936941.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 23.

    Hall EJ, Giaccia AJ. Clinical response of normal tissues. In: Hall EJ, Giaccia AJ, eds. Radiobiology for the radiologist. 6th ed. Philadelphia: Lippincott Williams & Wilkins, 2006;327348.

    • Search Google Scholar
    • Export Citation
  • 24.

    Hall EJ, Giaccia AJ. Time, dose, and fractionation in radiotherapy. In: Hall EJ, Giaccia AJ, eds. Radiobiology for the radiologist. 6th ed. Philadelphia: Lippincott Williams & Wilkins, 2006;378397.

    • Search Google Scholar
    • Export Citation
  • 25.

    Hill RP, Bristow RG. The scientific basis of radiotherapy. In: Tannock IF, Hill RP, Bristow RG, et al, eds. The basic science of oncology. 4th ed. New York: McGraw-Hill Inc, 2005;289321.

    • Search Google Scholar
    • Export Citation
  • 26.

    Johnson DH Jr. CT of maxillofacial trauma. Radiol Clin North Am 1984;22:131214.

  • 27.

    Cohen MA, Mendelsohn DB. CT and MR imaging of myxofibroma of the jaws. J Comput Assist Tomogr 1990;14:281285.

  • 28.

    Ariji E, Moriguchi S, Kuroki T, et al. Computed tomography of maxillofacial infection. Dentomaxillofac Radiol 1991;20:147151.

  • 29.

    Bodner L, Bar-Ziv J, Kaffe I. CT of cystic jaw lesions. J Comput Assist Tomogr 1994;18:2226.

  • 30.

    Pe MB, Sano K, Kitamura A, et al. Computed tomography in evaluation of postoperative maxillary cysts. J Oral Maxillofac Surg 1990;48:679684.

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 31.

    Grellner TJ, Frost DE, Brannon RB. Lingual mandibular bone defects: report of three cases. J Oral Maxillofac Surg 1990;48:288296.

  • 32.

    Forssell K. The primordial cyst. A clinical and radiographic study, in Proceedings. Finn Dent Soc 1980;76:129174.

Advertisement

Computed tomography–assisted management of a mandibular dentigerous cyst in a dog with a nasal carcinoma

Jason W. SoukupDepartment of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706.

Search for other papers by Jason W. Soukup in
Current site
Google Scholar
PubMed
Close
 DVM, DAVDC
,
Jessica A. LawrenceDepartment of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706.

Search for other papers by Jessica A. Lawrence in
Current site
Google Scholar
PubMed
Close
 DVM, DACVR, DACVIM
,
Marie E. PinkertonDepartment of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706.

Search for other papers by Marie E. Pinkerton in
Current site
Google Scholar
PubMed
Close
 DVM, DACVP
, and
Tobias SchwarzDepartment of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706.

Search for other papers by Tobias Schwarz in
Current site
Google Scholar
PubMed
Close
 MA, Dr med vet, DACVR

Abstract

Case Description—A 6-year-old neutered male Boston Terrier was examined to determine the cause of sneezing, bilateral nasal discharge, nasal congestion, lethargy, and coughing of 2 months' duration.

Clinical Findings—An undifferentiated nasal carcinoma was diagnosed. During computed tomography (CT) evaluation of response to tomotherapy radiation treatment, a mandibular dentigerous cyst, associated with an unerupted left mandibular first premolar, was monitored for expansion.

Treatment and Outcome—The dog had a profound response to radiation treatment, and the nasal carcinoma totally resolved. It was determined on the basis of CT that the rate of expansion of the dentigerous cyst was placing the dog at risk for mandibular fracture and loss of vitality to the surrounding teeth. The unerupted left mandibular first premolar and associated dentigerous cyst were surgically removed and submitted for histologic evaluation.

Clinical Relevance—Images obtained during sequential CT evaluations performed after radiation treatment of nasal carcinoma should be examined for evidence of the primary neoplasm as well as to detect unrelated lesions of the orofacial region that can compromise the quality of life. Findings of CT evaluations can be used to determine when and how to initiate treatment for dentigerous cysts in regard to the patient's response to radiation treatment.

Abstract

Case Description—A 6-year-old neutered male Boston Terrier was examined to determine the cause of sneezing, bilateral nasal discharge, nasal congestion, lethargy, and coughing of 2 months' duration.

Clinical Findings—An undifferentiated nasal carcinoma was diagnosed. During computed tomography (CT) evaluation of response to tomotherapy radiation treatment, a mandibular dentigerous cyst, associated with an unerupted left mandibular first premolar, was monitored for expansion.

Treatment and Outcome—The dog had a profound response to radiation treatment, and the nasal carcinoma totally resolved. It was determined on the basis of CT that the rate of expansion of the dentigerous cyst was placing the dog at risk for mandibular fracture and loss of vitality to the surrounding teeth. The unerupted left mandibular first premolar and associated dentigerous cyst were surgically removed and submitted for histologic evaluation.

Clinical Relevance—Images obtained during sequential CT evaluations performed after radiation treatment of nasal carcinoma should be examined for evidence of the primary neoplasm as well as to detect unrelated lesions of the orofacial region that can compromise the quality of life. Findings of CT evaluations can be used to determine when and how to initiate treatment for dentigerous cysts in regard to the patient's response to radiation treatment.

Contributor Notes

Dr. Schwarz's present address is the Easter Bush Veterinary Centre, Royal School of Veterinary Studies, The University of Edinburgh, Roslin EH25 9RG, Scotland.

Address correspondence to Dr. Soukup.