A 7 yr old Labrador retriever initially presented for severe halitosis, mild ptylism, and depigmentation of the nasal planum. Erythema multiforme was diagnosed based on clinical signs and dermatopathology. Treatment was initiated but the condition did not resolve. Six months later, the dog was diagnosed with a mediastinal mass. Trucut biopsy was performed and histopathologic diagnosis was consistent with a thymoma. A median sternotomy was performed, the thymoma was excised, and the dog recovered well. Four months postoperatively, there were no longer any obvious erythema multiforme lesions and the skin condition was controlled without medication. Erythema multiforme may be a paraneoplastic disorder associated with thymoma in the dog, similar to thymoma-associated exfoliative dermatitis in the cat. Clinical signs of erythema multiforme may warrant performing thoracic radiographs or thoracic CT to rule out thymoma as an underlying cause.
Skip Nav Destination
Article navigation
March/April 2011
Online-Only Articles|
March 01 2011
Diagnosis of Erythema Multiforme Associated with Thymoma in a Dog and Treated with Thymectomy
Laura C. Tepper, DVM;
Red Bank Veterinary Hospital, Tinton Falls, NJ.
Correspondence: [email protected] (L.T.)
Search for other works by this author on:
Ian B. Spiegel, VMD, MHS, DACVD;
Ian B. Spiegel, VMD, MHS, DACVD
Red Bank Veterinary Hospital, Tinton Falls, NJ.
Search for other works by this author on:
Garrett J. Davis, DVM, DACVS
Garrett J. Davis, DVM, DACVS
Red Bank Veterinary Hospital, Tinton Falls, NJ.
Search for other works by this author on:
J Am Anim Hosp Assoc (2011) 47 (2): e19–e25.
Citation
Laura C. Tepper, Ian B. Spiegel, Garrett J. Davis; Diagnosis of Erythema Multiforme Associated with Thymoma in a Dog and Treated with Thymectomy. J Am Anim Hosp Assoc 1 March 2011; 47 (2): e19–e25. doi: https://doi.org/10.5326/JAAHA-MS-5561
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
Sign in via your Institution
Sign in via your InstitutionCiting articles via
Long-Term Survival of Primary Intracranial Histiocytic Sarcoma Through Surgical Resection and Low-Dose CCNU
Kyosuke Hidari, DVM, Yuya Nakamoto, DVM, PhD, James K. Chambers, DVM, PhD, Kazuyuki Uchida, DVM, PhD, Isao Mori, DVM, Miwa Nakamoto, DVM
Microfilaria in the Urine of a Dog with Concurrent Urinary Bladder Sarcoma
Nicole Schlette, DVM, Erin Burton, DVM, MS, DACVP, Amber Harris, DVM, DACVIM (Internal Medicine), Kendall Langsten, DVM, DACVP, Erik Olson, DVM, PhD, DACVP, Daniel Heinrich, DVM, DACVP
Chronic Myelomonocytic Leukemia with Central Nervous System Involvement in a Dog
Ilaria Tartari, DVM, Fabio Tocco, DVM, Giorgio Cancedda, DVM, Veronica Angioni, DVM, Marco Podda, DVM, Antonella Gallucci, DVM, PhD, DECVN, EBVS
Treatment Outcomes of Canine Orbital Meningiomas in Seven Cases
Akihiro Uno, DVM, Ryota Iwasaki, DVM, PhD, Takashi Mori, DVM, PhD
Transient Hypoadrenocorticism in a 7-Week-Old Kitten
Alba Planas Vintro, BVM, Linda G. Martin, DVM, MS, DACVECC, Cassidy L. Cordon, DVM, Sabrina N. Hoehne, Dr. med. vet., DACVECC, DECVECC, Elizabeth B. Davidow, DVM, DACVECC