Oncology 2017-09-11T15:21:16+00:00

Veterinary Oncology

A diagnosis of cancer can be devastating, but rest assured, the oncology team at Columbia River VetERinary Specialists has the skill, experience and compassion to help you make the best decisions during a difficult time.

Our board certified specialist can make a determination as to whether cancer cells are present, and will meet with you to discuss the course of the disease, additional recommended diagnostics, treatment options, side effects and the ultimate prognosis. We believe one of the keys to successful treatment is clear communication between our team and you—and we’ll ensure you have all the information you need as you work with us to choose the best course of care.

Melanie McMahon, DVM, MS, DACVIM

Dr. Melanie McMahon became interested in the bond between pets and their humans during her undergraduate work at University of Texas at Austin where she received her BA in Psychology. After deciding to pursue veterinary medicine, Dr. McMahon moved to California to attend veterinary school at the University of California. She completed an internship at Colorado State University and subsequently completed her medical oncology residency at The Ohio State University.

Dr. McMahon received her board certification in medical oncology through the American College of Veterinary Internal Medicine (ACVIM) and has been practicing in the Pacific Northwest since 2009. Dr. McMahon’s special interests include osteosarcoma, mast cell tumors, and palliative care. Her main goal as an oncologist is to ensure that each patient has an excellent quality of life during cancer treatment.

Dr. McMahon truly loves living in the Pacific Northwest. She is an avid climber and backpacker and enjoys international travel to pursue these interests.

Types of Cases

Cancers (Malignancies) Based on Location

  • Adrenal and Pituitary Tumors
  • Bladder and Urethral Tumors
  • Bone Tumors (primary and metastatic)
  • Brain and Spinal Cord Tumors
  • Cardiac and Heart-based Tumors
  • Esophageal Tumors
  • Gall Bladder, Liver, and Pancreatic Tumors
  • Laryngeal and Tracheal Tumors
  • Lung Tumors (primary and metastatic)
  • Mammary Gland Tumors
  • Mediastinal Tumors
  • Nasal Tumors
  • Ocular and Periocular Tumors
  • Oral and Salivary Gland Tumors
  • Perianal and Anal Sac Tumors
  • Prostatic Tumors
  • Renal Tumors
  • Reproductive Tumors (male and female)
  • Rib and Pleural Tumors
  • Skin, Nail Bed, and Foot Pad Tumors
  • Skull Tumors
  • Splenic Tumors
  • Thyroid and Parathyroid Tumors
  • Stomach and Intestinal Tumors
Specific Types of Cancer (Malignancies)

  • Apocrine Gland Adenocarcinoma
  • Basal Cell Carcinoma
  • Chondrosarcoma
  • Epulis
  • Hemangiosarcoma
  • Histiocytic Disease
  • Leukemia and Lymphoma
  • Melanoma
  • Mast Cell Tumor
  • Multiple Myeloma
  • Osteosarcoma
  • Other – Adenocarcinoma, Carcinoma, Sarcoma, Undifferentiated
  • Soft Tissue Sarcoma
  • Squamous Cell Carcinoma
  • Thymoma
  • Transitional Cell Carcinoma