Introduction:
Insulinomas are rare functioning neuroendocrine (NEN) tumors. Up to 10%
of insulinomas are associated with multiple endocrine neoplasia 1
(MEN1). Most of the tumors present with symptomatic hypoglycemia.
Several non-invasive and invasive techniques are used to localize the
lesion. We present a case of insulinoma presenting with seizure episodes
with negative results on non-invasive imaging diagnosed and localized
with endoscopic ultrasound.