Aronen A.

Specializes in surgical management of liver, bile duct, and pancreatic disorders, such as hepatocellular carcinoma, cholangiocarcinoma, and pancreatic neuroendocrine tumor.

• Hepatocellular carcinoma resection and transplant strategies
• Cholangiocarcinoma with adjuvant therapy considerations
• Pancreatic neuroendocrine tumor surgical and systemic treatment
• Bile duct cancer multidisciplinary management

Efforts concentrate on extending survival while preserving organ function.

Addresses chronic inflammatory conditions of the intestine, including Crohn’s disease, ulcerative colitis, and celiac disease.

• Crohn’s disease with biologic and surgical options
• Ulcerative colitis refractory to medical therapy
• Celiac disease symptom management and dietary interventions
• Post‑operative outcomes in inflammatory bowel disease surgery

Research integrates immunomodulation with operative techniques to achieve durable remission.

Engages in surgical and therapeutic approaches for metabolic disorders such as obesity, type 2 diabetes mellitus, and type 1 diabetes mellitus.

• Obesity bariatric procedures and metabolic outcomes
• Type 2 diabetes mellitus remission after metabolic surgery
• Type 1 diabetes mellitus pancreas transplantation considerations
• Cardiovascular risk reduction linked to metabolic interventions

Investigations target long‑term improvement of glycemic control and cardiovascular health.

Involves emergency abdominal procedures and vascular interventions, including treatment of abdominal aortic aneurysm and managing acute critical illness in intensive care settings.

• Abdominal aortic aneurysm open and endovascular repair
• Acute critical illness requiring emergency abdominal surgery
• Post‑operative intensive care management
• Complex vascular reconstruction in abdominal trauma

Focus is on rapid intervention, peri‑operative stability, and reduction of mortality.