Abstract

Insulinomas are rare cause of neuroendocrine tumour which secretes insulin leading to hyperinsulinism. Diagnosis requires biochemical evaluation followed by tumour localization.

We report a case of an adult women, who, had multiple admissions with dizziness, funny turns and double vision for at least 2 years and seen by the multiple medical specialties before the diagnosis of Insulinoma was made.

Endoscopic Ultrasound finally localized the tumour despite negative results on multiple non-invasive imaging modalities. Prior to the localization of tumour, she was treated with dietary modifications followed by Diazoxide, which, she had to abandon due to refractory fluid overload as a result of it. A trial of SC Octreotide was started with excellent results whilst waiting for surgery. She underwent laparoscopic distal pancreatectomy on 22/02/2019.