Nonfunctional mediastinal parathyroid cyst: imaging findings in two cases.

The authors describe the computed tomography (CT) and magnetic resonance (MR) imaging findings of a 69-year-old woman and a 69-year-old man with a nonfunctional mediastinal parathyroid cyst. In the described cases, unenhanced CT showed homogeneous areas of water density, and unenhanced MRI showed homogeneous areas that were isointense to cerebrospinal fluid, reflecting their serous fluid contents. Both cysts were located posterior to the left lower pole of the thyroid gland with an extension to the superior mediastinum, either anterior or posterior to the left brachiocephalic vein.

Acinar cell carcinoma arising from an ectopic pancreas.

We herein report a rare case of ectopic pancreatic acinar cell carcinoma (ACC) which presented as a submucosal tumor of the pylorus. A 73-year-old man came to our hospital presenting with epigastralgia. Esophago-gastroduodenal endoscopy showed no mucosal lesions, but a submucosal tumor was observed around the pylorus.

A case of a large retroperitoneal liposarcoma presenting as an incarcerated inguinal hernia.

We report a rare case of retroperitoneal liposarcoma developing within an incarcerated inguinal hernia. A 53-year-old man presented to our hospital with left inguinal mass. Preoperative computed tomography revealed an intraabdominal huge mass, and a clinical diagnosis of liposarcoma.

[A case of idiopathic intussusception of the stomach].

A 73-year-old man was admitted to our hospital because of vomiting. A fist-sized tumor with tenderness was palpated on his epigastric region. Fluoroscopic examination of the stomach showed narrow body and dilated antrum with intussusception.

Influence of intermittent ischemia on thioacetamide-induced rat liver cirrhosis.

We studied the influence of intermittent ischemic injury on thioacetamide-induced liver cirrhosis in rats. Wistar rats were divided into group A, intermittent ischemic injury to liver cirrhosis, and group B, continuous ischemic injury to liver cirrhosis. Total ischemic time was 60 min in both groups.