A 6 yr old male Yorkshire terrier was presented for an ~6 yr history of progressive cough and dyspnea. Thoracic radiographs revealed a 6 cm diameter mass within the right caudal thorax. Thoracic ultrasound identified an intrathoracic mass ultrasonographically consistent with liver tissue and a chronic diaphragmatic hernia was suspected. Exploratory laparotomy was performed, but no evidence of a diaphragmatic hernia was identified. Thoracic exploration identified abnormal lung parenchyma. The accessory lung lobe was removed using a stapling devise near its base. The consolidated mass had the gross appearance of liver and was histologically identified as ectopic hepatic tissue. Ectopic hepatic tissue, unlike ectopic splenic and pancreatic tissue, is rare and generally has a subdiaphragmatic distribution. This solitary case report demonstrates that ectopic intrathoracic hepatic tissue should be considered a differential diagnosis for a caudal mediastinal mass.
Skip Nav Destination
Article navigation
September/October 2015
Case Reports|
September 01 2015
Ectopic Intrathoracic Hepatic Tissue and Accessory Lung Lobe Aplasia in a Dog
Rachel Lande, DVM;
Rachel Lande, DVM
From the PetPB Pet Emergency Clinic, Boynton Beach, FL (R.L.); Carolina Veterinary Specialists, Matthews, NC (R.L., L.D.); IDEXX Reference Laboratory, West Sacramento, CA (D.G.); and Pet Rays, Spring, TX (A.B.)
Search for other works by this author on:
Laura Dvorak, MS, DVM, DACVS;
Laura Dvorak, MS, DVM, DACVS
From the PetPB Pet Emergency Clinic, Boynton Beach, FL (R.L.); Carolina Veterinary Specialists, Matthews, NC (R.L., L.D.); IDEXX Reference Laboratory, West Sacramento, CA (D.G.); and Pet Rays, Spring, TX (A.B.)
Search for other works by this author on:
David W. Gardiner, MS, DVM, DACVP;
David W. Gardiner, MS, DVM, DACVP
From the PetPB Pet Emergency Clinic, Boynton Beach, FL (R.L.); Carolina Veterinary Specialists, Matthews, NC (R.L., L.D.); IDEXX Reference Laboratory, West Sacramento, CA (D.G.); and Pet Rays, Spring, TX (A.B.)
Search for other works by this author on:
Anne Bahr, DVM, DACVR
Anne Bahr, DVM, DACVR
From the PetPB Pet Emergency Clinic, Boynton Beach, FL (R.L.); Carolina Veterinary Specialists, Matthews, NC (R.L., L.D.); IDEXX Reference Laboratory, West Sacramento, CA (D.G.); and Pet Rays, Spring, TX (A.B.)
Search for other works by this author on:
J Am Anim Hosp Assoc (2015) 51 (5): 342–345.
Citation
Rachel Lande, Laura Dvorak, David W. Gardiner, Anne Bahr; Ectopic Intrathoracic Hepatic Tissue and Accessory Lung Lobe Aplasia in a Dog. J Am Anim Hosp Assoc 1 September 2015; 51 (5): 342–345. doi: https://doi.org/10.5326/JAAHA-MS-6229
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