The number of obstructive colorectal cancers in Japan has increased during the COVID-19 pandemic: A retrospective single-center cohort study.

Background: The global pandemic of COVID-19 has changed cancer treatment environments. In Japan, cancer screenings were halted and the numbers of endoscopies and surgeries were restricted in some hospitals based on the state of emergency declared. Herein, we investigated the impact of the COVID-19 pandemic on the characteristics of colorectal cancer (CRC) patients in facilities that are on the frontline of both COVID-19 and cancer treatments.

Splenic mass in a case of -mutated essential thrombocythemia.

We report here an intrasplenic large mass in an elderly case of essential thrombocythemia (ET)-myelofibrosis. Laparoscopic splenectomy revealed extramedullary hematopoiesis (EMH) and a type 1 gene mutation (CALR-c.1092_1143del52) in the splenic mass.

Laparoscopic Repair of Right Paraduodenal Hernia in Adult Patients: Case Report and Literature Review.

A 56-year-old Japanese female presented with vomiting, nausea, and abdominal pain after excessive drinking and eating. Abdominal computed tomography showed an encapsulated circumscribed cluster of jejunal loops in the right upper quadrant. She was diagnosed with a strangulated intestinal obstruction caused by right paraduodenal hernia (PDH) and underwent an emergency laparoscopic repair.

Successful Use of a Multidisciplinary Approach to Treat a Perforated Duodenal Malignant Lymphoma in an Elderly Patient.

Treatment of duodenal malignant lymphoma is difficult due to life-threatening complications such as intestinal obstruction, perforation, and pancreatitis. Thus, multidisciplinary procedures are required alongside surgical intervention. Contrast abdominal CT images of a 75-year-old female suffering from vomiting revealed thickening of the duodenal wall (from the second to third segment).

Non-specific hyperamylasemia in shosin beri-beri.

Several reports demonstrate non-specific hyperamylasemia in cardiac surgery or diabetic ketoacidosis. We report here for the first time non-specific hyperamylasemia in a cardiovascular beri-beri case who showed shock with severe metabolic acidosis. Her echocardiography revealed hyperkinetic wall motion of the small left ventricle.

An unusual case of noncavitary hemorrhage revealed by intravenous contrast-enhanced computed tomography.

Peripheral arterial injuries after blunt trauma commonly follow injuries to adjacent soft tissue, organ, and bone. We present here a case of blunt injury to the lumbar artery and the deep iliac circumflex artery in which there was no adjacent bone fracture, but in which hemorrhagic shock and persistent anemia ensued. Intravenous contrast-enhanced computed tomography revealed the site of active bleeding, leading us to perform an angiographic embolization for hemostasis.