Archive Case #7: Canine Insulinoma

Clinical Clues

1. A 10-year-old Boxer.
2. The owner reports episodic collapse, especially after exercise or excitement.
3. During these episodes the dog appears weak, trembles, and occasionally seems disoriented before recovering after being fed.
4. On examination between episodes the dog is quiet but otherwise only mildly weak, with no obvious cardiac or orthopaedic cause for collapse.
5. Blood glucose is repeatedly low at the time of signs, with an inappropriately normal to high insulin concentration.
6. An autonomously secreting pancreatic beta-cell neoplasm causes persistent hypoglycaemia and intermittent neuroglycopenic episodes.

Diagnosis

Canine Insulinoma

Insulinoma is a functional pancreatic beta-cell tumour that causes recurrent hypoglycaemia. Affected dogs often present with episodic weakness, collapse, tremors, or seizures that may improve after eating.

Educational Use

Vetdle archive cases are educational veterinary games for diagnostic reasoning practice. They do not provide veterinary advice, diagnosis, treatment, or professional medical guidance.