Sample Clinical Cases

Signalment

9-year-old neutered male Labrador Retriever, 28 kg

Presenting Complaint

Progressive weight loss, polyuria–polydipsia, lethargy, and occasional vomiting over the past 3–4 weeks.

Examiner focus: clinical reasoning

Considering the chronicity of clinical signs and the patient’s signalment, which diagnosis best explains this dog’s condition at this stage?