[A Case of Intussusception Due to Sigmoid Colon Cancer].

A 78-year-old man was referred to our hospital with diarrhea, melena, and weight loss. During a digital rectal examination, a protuberant mass located 7-8 cm above the anal verge was palpable. Computed tomography(CT)scans of his chest, abdomen, and pelvis revealed an intestinal obstruction with a target sign in the lower rectum, indicating intussusception due to a sigmoid colon mass.

[A Case of Pancreatic Head Neuroendocrine Tumor with Multiple Liver Metastases Successfully Treated with Multimodality Therapy IncludingRepeat Hepatectomy].

A 68-year-old man who had a history of bone marrow transplantation for acute myeloid leukemia was referred to our hospital due to an abnormal liver function test. Based on the clinical diagnosis of P-NET G2 with multiple livermetastases, pylorus-preserving pancreaticoduodenectomy with combined resection of the portal vein and liver sampling were performed (R2 resection). The resected specimen revealed NET-G2 tumorof the pancreatic head(Ki-67 proliferation index 5.

Age-related effects of dexmedetomidine on myocardial contraction and coronary circulation in isolated guinea pig hearts.

Dexmedetomidine is a selective α2 adrenergic agonist. Although dexmedetomidine is widely used for sedation and analgesia, it frequently produces hypotension and bradycardia. The present study aimed to evaluate the effects of dexmedetomidine on cardiac function and coronary circulation using Langendorff-perfused guinea pig hearts.

A case of gallbladder perforation detected by sonography after a blunt abdominal trauma.

Gallbladder (GB) perforation is a very rare posttraumatic abdominal injury. It is potentially life-threatening, and good outcome requires early diagnosis. We present a case of isolated posttraumatic GB perforation in which the precise sonographic (US) diagnosis led us to apply proper management.