A 14-year-old boy who underwent aortic valve-sparing operation for annuloaortic ectasia at the age of 9 was referred to our service with a diagnosis of acute type A aortic dissection. Emergency total arch replacement with the elephant trunk technique was done successfully and the postoperative course was uneventful. However, computed tomography (CT) 2 weeks after the operation showed a new dissection and enlargement in left subclavian artery and folded elephant trunk. Dilatation in coronary buttons were also seen since the time of surgery. No residual dissection was found in the aorta. Careful follow up is necessary for this case due to multiple aneurysmal changes and a new dissection lesion in a short period. Loeys-Dietz syndrome (LDS) is characterized by vascular findings (aortic aneurysm and dissection) and skeletal manifestations. Due to aortic dissection occurring in smaller diameter aortas in LDS patients than in Marfan syndrome, early and aggressive surgery is recommended for patients with LDS.

A 48-year-old woman with a history of recurrent alcoholic pancreatitis was found to have a pancreatic pseudocyst. In November 20XX, she visited the emergency department due to sudden abdominal pain. Contrast-enhanced computed tomography showed a pancreatic pseudocyst with a maximum diameter of 67 mm and ascites. A ruptured pancreatic pseudocyst was suspected and abdominal paracentesis was performed. The amylase level in the ascitic fluid was high (3444 IU/L), leading to a diagnosis of acute generalized peritonitis due to rupture of a pancreatic pseudocyst. Intraoperative findings revealed 500 mL of ascites mixed with pancreatic juice and turbid cyst contents, and distal pancreatectomy was performed. The postoperative course was favorable, and the patient was discharged on hospital day 14. Rupture of pancreatic pseudocyst is rare. In this case, it was promptly diagnosed and successfully treated with emergency surgery.