A Rare Case of Asymptomatic Insulinoma with Mesocolonic Lymph Node Metastases and Long-Term Stability

Key Points

• This research addresses the occurrence of asymptomatic insulinoma with lymph node metastases and its long-term stability.
• Case report on an asymptomatic insulinoma located in the pancreatic body.
• Imaging studies to assess lymph node status in the transverse mesocolon.
• Follow-up over a period of at least 3 years to evaluate stability.
• The insulinoma was found to have multiple lymph node metastases confined to the mesocolon.
• The metastases remained radiologically stable for at least 3 years before diagnosis.
• This case underscores the possible malignant behavior of insulinomas, even in low-grade forms.