Case Report

Hypoglycemic Syndrome in a Patient with Proinsulin-Only Secreting Pancreatic Adenoma (Proinsulinoma)

Table 1

Daytime glucose, insulin and c-peptide variations during hospital stay. Insulin and c-peptide were measured using automated immunoassays from American Systems DPS (Diagnostic Products Corporation) optimized on a Siemens Immulite 2000© platform.

Glicemia mmol/L (mg/dL)Insulina pmol/L (mU/L)c-peptide pmol/L ( 𝜇 g/L)

Before breakfast1.9 (34)39 (5.4)0.60 (1.8)
After breakfast5.2 (94)79 (11.0)1.12 (3.4)
Before lunch3.0 (54)62 (8.6)0.82 (2.5)
After lunch7.7 (139)113 (15.7)1.56 (4.7)
Before dinner3.3 (59)80 (11.1)1.23 (3.7)
After dinner4.9 (88)54 (7.5)0.99 (3.0)