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Anatomical Structure🐕 Dogs🐈 Catsgastrointestinalendocrine

Pancreas

🗣️ Pronounced:PAN-kree-us
In One Sentence (Plain English)

A delicate, V-shaped organ nestled along the stomach and duodenum that has both digestive enzyme (exocrine) and hormone (endocrine) functions.

Editorial Status: Verified from peer-reviewed veterinary sources (v1.0)
Updated: 2026-01-15

💬 In Plain English

The pancreas is a pale pink, lobulated, V-shaped organ located along the stomach and the first section of the small intestine (the duodenum). It is a remarkable "dual" organ with two distinct functions: the exocrine pancreas manufactures powerful digestive enzymes (lipase, amylase, trypsin) and sends them through a duct into the intestines to break down fats, carbs, and proteins; and the endocrine pancreas contains microscopic clusters of cells called the Islets of Langerhans that make insulin and glucagon to balance blood sugar. It is the site of both pancreatitis and diabetes.

🔬 Clinical & Technical Depth

For Vets & Technicians

Formal Clinical Definition

Bifunctional glandular organ divided into a right lobe (accompanying the descending duodenum), a left lobe (coursing along the greater curvature of the stomach), and a central body. Comprises an exocrine component (acinar cells synthesizing digestive zymogens) and an endocrine component (pancreatic islets containing beta cells producing insulin, alpha cells producing glucagon).

Why Veterinarians Use It

Veterinarians assess pancreatic health when investigating acute abdominal pain, vomiting, diarrhea, high blood sugar, or chronic weight loss.

Clinical Context Encountered

Encountered during workups for pancreatitis, diabetes mellitus, exocrine pancreatic insufficiency (EPI), or pancreatic insulinoma tumors.

Clinical Reference Guide (Anatomical Structure)

Anatomical Location

Right cranial abdomen; the right lobe lies within the mesoduodenum adjacent to the descending duodenum, while the left lobe lies in the deep leaf of the greater omentum adjacent to the stomach.

Normal Physiological Function

Exocrine: synthesis and secretion of inactive digestive proenzymes (zymogens) and bicarbonate into the duodenum. Endocrine: synthesis and secretion of insulin, glucagon, and somatostatin into the portal circulation.

🐕 vs 🐈 Species Differences

Dogs typically possess two pancreatic ducts (the major duct of Wirsung and the larger accessory duct of Santorini), whereas cats usually have only one main pancreatic duct that fuses with the common bile duct before entering the duodenum (explaining why cats frequently get concurrent pancreatitis and cholangiohepatitis: "triaditis").

🚨 Red Flag Warnings (When to Contact an Emergency Vet)
  • •When pancreatic digestive enzymes activate prematurely inside the gland, severe acute necrotizing pancreatitis can trigger widespread systemic inflammatory response syndrome (SIRS).

❓ Questions to Ask Your Veterinarian

Take these actionable questions with you to your next clinic visit or appointment:

  • 1Is the problem localized to the exocrine pancreas (digestive enzymes/pancreatitis) or the endocrine pancreas (insulin/diabetes)?
  • 2What did the specific pancreatic lipase test (Spec cPL or Spec fPL) show?
  • 3Does ultrasound show swelling or inflammation in the surrounding mesenteric fat?

Academic & Clinical References