Alex Le Roux,

Role: Senior Veterinarian
Specialist in Radiology, Diagnostic Imaging
Department: Diagnostic Imaging
Dr. Alexandre Le Roux of the Animal Medical Center in New York City

Dr. Le Roux graduated from the Veterinary School of Nantes, France, in 2006. After a rotating small animal internship in Toulouse and a radiology internship in Belgium, he completed a radiology residency program at the Veterinary School of Louisiana State University in 2013. Dr. Le Roux became a Diplomate of the European College of Veterinary Diagnostic Imaging in 2012 and a Diplomate of the American College of Veterinary Radiology in 2014. During his residency at LSU, he also started a Master of Science about histological and ultrasonographic correlation of small intestinal layering in dogs, completed in 2015.

Board Certifications:


  • DVM – National Veterinary School of Nantes, France, 2006
  • Small Animal Rotating Internship – National Veterinary School of Toulouse, France, 2007
  • Radiology Clinical Internship – Veterinary School of Liege Belgium, 2009
  • Residency in Diagnostic Imaging – Louisiana State University, Baton Rouge, LA, 2013
  • Master of Science – Louisiana State University, Baton Rouge, LA, 2015
  • Advanced Certificate in Clinical and Translational Investigation – Weill Cornell Medical College Clinical and Translational Science Center, New York, NY, 2016

Recent Publications:

Mensuration of the rabbit pituitary gland from computed tomography. Kwan V, Quesenberry K, Le Roux AB. Vet Radiol Ultrasound. 2020 May;61(3):322-328. doi: 10.1111/vru.12852. Epub 2020 Mar 13.PMID: 32170792

Imaging features of disseminated xanthogranulomatous inflammation in eclectus parrots (Eclectus roratus). Hanson ME, Donovan TA, Quesenberry K, Dewey A, Brown C, Chen S, Le Roux AB. Vet Radiol Ultrasound. 2020 Jul;61(4):409-416. doi: 10.1111/vru.12861. Epub 2020 May

Disseminated pancreatic adenocarcinoma in an eclectus parrot (Eclectus roratus). Le Roux AB, Quesenberry K, Donnelly KA, Donovan TA.J Am Vet Med Assoc. 2020 Sep 15;257(6):635-641. doi: 10.2460/javma.257.6.635.PMID: 32857003

Radiographic features of suspected suture-associated cystic calculi in dogs. Hickey JM, Berent AC, Fischetti AJ, Le Roux AB. Vet Radiol Ultrasound. 2020 Jul;61(4):394-398. doi: 10.1111/vru.12863. Epub 2020 Apr 23.PMID: 32329210

Bacterial infection before and after stent placement in dogs with tracheal collapse syndrome. Lesnikowski S, Weisse C, Berent A, Le Roux A, Tozier E.J Vet Intern Med. 2020 Mar;34(2):725-733. doi: 10.1111/jvim.15712. Epub 2020 Jan 24.PMID: 31977124

Donnelly KA, Le Roux AB, Donovan TA, Grodio J, Quesenberry K. Acute Necrotizing Pancreatitis in a Yellow-naped Amazon Parrot (Amazona auropalliata). J Avian Med Surg. 2018 Sep; 32(3):232-239.

Marinkovich M, Quesenberry K, Donovan TA, Le Roux AB. Use of Standing Computed Tomography for the Diagnosis of a Primary Respiratory Adenocarcinoma in a Scarlet Macaw (Ara macao). J Exot Pet Med. 2017 April; 26(2):101–107.

Le Roux AB, Hickey JM, Noel PG. What Is Your Diagnosis? Bilateral adrenal gland necrosis secondary to hyperadrenocorticism treatment with trilostane in a dog. J Am Vet Med Assoc. 2016 Dec 15; 249(12):1353-1355.

Noel PG, Fischetti AJ, Moore GE, Le Roux AB. Comparison of off-site smartphone JPEG-format versus DICOM-format standard workstation in the radiographic diagnosis of small intestinal mechanical obstruction in dogs and cats. Vet Radiol Ultrasound. 2016 Sep; 57(5):457-61.

Le Roux AB, Granger LA, Wakamatsu N, Kearney MT, Gaschen L. Ex vivo correlation of ultrasonographic small intestinal wall layering with histology in dogs. Vet Radiol Ultrasound. 2016 Sep; 57(5):534-45.

Hickey JM, Le Roux AB. What Is Your Diagnosis? Variant of a bilateral distal ulnar retained cartilaginous core in a dog. J Am Vet Med Assoc. 2016 Jul 1; 249(1):51-3.

Le Roux AB, Cahn D. What Is Your Diagnosis? Perforating tracheal foreign body and caudal mediastinal abscessation in a dog. J Am Vet Med Assoc. 2016 Apr 15; 248(8):879-81.

Verrilli AM, Hohenhaus AE, Le Roux AB, Donovan TA. What Is Your Diagnosis? Herniated cystadenoma in a cat mimicking a pulmonary mass. J Am Vet Med Assoc. 2016 Mar 1; 248(5):493-6.