A 32-year-old male patient, a known case of chronic myeloid leukemia (CML) with 11 × 9 cm GIANT functioning insulinoma in the uncinate region of pancreas, with no local invasion or metastatic disease, is presented. In view of CML, enucleation of the tumor done. Histopathology was s/o ‘insulinoma of uncertain biological behavior’. Postoperatively, the patient was followed up for one year and fou...

BACKGROUND Insulinoma associated with pregnancy is a very rare condition and can be difficult to diagnose. Here, we present an interesting case of insulinoma occurring during pregnancy with special attention paid to the use of a continuous glucose monitoring system to detect hypoglycemia. CASE PRESENTATION A 36-year-old white woman in the second trimester of pregnancy presented with recurrent...

UNLABELLED Insulinoma is a rare form of insulin-secreting pancreatic islet cell neuroendocrine (NE) tumor. The medical treatment of the malignant NE disease of the pancreas deeply changed in the last years, thanks to the introduction of new target molecules, as everolimus. Even if the exact mechanism is not actually known, one of the side effects of everolimus, hyperglycemia, has been demonstra...

The neurosteroid pregnenolone sulfate activates a signaling cascade in insulinoma cells involving activation of extracellular signal-regulated protein kinase and enhanced expression of the transcription factor Egr-1. Here, we show that pregnenolone sulfate stimulation leads to a significant elevation of activator protein-1 (AP-1) activity in insulinoma cells. Expression of the basic region leuc...

A 58-year-old Chinese man presented with intermittent seizure episodes after being misdiagnosed with epilepsy for eight years. MRI revealed an abnormally strong signal in the distal pancreas. The patient was subsequently diagnosed with pancreatic insulinoma based on the histological findings, and his symptoms improved following surgical removal of the tumor. The appearance of unusual manifestat...

This retrospective study examined 8 cases of pathologically diagnosed insulinoma. Surgical intervention was performed in all cases, once insulinoma was suspected based on unique clinical signs, hypoglycemia, and/or findings on ultrasonography. At the same time, insulin and glucose concentrations were measured before surgery for clinical diagnosis. Although all cases displayed typical clinical s...

Insulinomas are functional pancreatic neuroendocrine tumors that cause hypoglycemia and severe morbidity. The aim of our study was to identify gene mutations responsible for tumorigenesis of sporadic insulinoma. Whole exome sequencing analysis was performed on tumors and paired peripheral blood from three patients with insulinomas. After initial analysis, somatic mutations were obtained and a d...

UNLABELLED Malignant insulinoma usually has a poor prognosis, as no efficient medical treatment is available. The somatostatin analogs octreotide and lanreotide have limited ability to control the hypoglycemic events. Pasireotide is a multi-receptor targeted somatostatin-analog with improved affinity for SSTR5. There is to date no reported treatment experience with this drug in such tumors. C...