case presentation a 43-year-old man was referred to our institution for a severe aortic regurgitation and an ascending aorta enlargement associated with a relapsing sub-aortic membrane, which had been treated in his childhood. he underwent a redo ascending aorta replacement and an aortic valve replacement (mechanical prosthesis) along with a resection of the relapsing sub-valvular membrane. som...

Hemolymphangioma is a rare vascular developmental error. It comprises malformed venous and lymphatic component in various proportion. To the best of our knowledge, only a few cases have been reported in the literature so far. Here, we report a case of huge intraperitoneal cystic mass in a 3-year-old boy that was presented to hospital with intractable abdominal pain. On examination, he had fever...

Yolk sac tumor (YST) is one of the rare malignant germ cell tumor and usually occurs in gonad. Extragondal sites of YSTs are reported in mediastinum, vagina, brain, and retroperitoneum but are extremely rarely in omentum. The clinicopathologic feature of primary omental YST is not well known and there are only 5 cases reported currently. Recently we experienced a primary YST of omentum in 27-ye...

INTRODUCTION Primary segmental infarction of the greater omentum is an infrequent cause for right lower quadrant pain. The exact aetiology is unknown and the right side is more commonly involved. It usually presents like acute appendicitis and the diagnosis is made during exploration. CASE REPORT We report such a case which was diagnosed and managed by laparoscopy. A 27-year-old male presente...

The radiologic features of gastrointestinal stromal tumors (GISTs) of the omentum and mesentery have infrequently been reported in the literature. They are characterized as wellcircumscribed, large masses containing areas of hemorrhage, necrosis or cystic degeneration. We present a case of GIST of the omentum and mesentery with atypical imaging findings mimicking mesenteric carcinomatosis. The ...

Torsion of the greater omentum is a rare cause of acute abdomen. Based on etiopathogenesis, it can be classified as primary or secondary. However, regardless of the cause, segmentary or diffuse omental necrosis will follow. Preoperative diagnosis is not easy, though abdominal ultrasound and computed tomography (CT) scans may show peculiar features suggestive of omental torsion. Laparoscopic res...

The canine omental bursa is a virtual cavity enclosed by the greater and lesser omentum. While previous representations of this bursa were always purely schematic, a novel casting technique was developed to depict the three-dimensional organization of the omental bursa more consistently. A self-expanding polyurethane-based foam was injected into the omental bursa through the omental foramen in ...

BACKGROUND Idiopathic segmental infarction of the greater omentum (ISIGO) is an uncommon cause of acute abdomen in children and adults and its etiology is rather vague and speculative. The clinical presentation is usually with atypical acute or subacute abdominal pain. In a number of cases radiologic imaging allows proper preoperative diagnosis and treatment. CASE PRESENTATION We report a cas...

Primary tumors of the greater omentum are rare. We report a case of a 5-year-old girl presenting with an acute abdomen who had omental torsion caused by a giant lipoma of the greater omentum, which was diagnosed by a computed tomography scan. Laparoscopy revealed a yellow tumor of the greater omentum with a smooth surface. Tumor excision and partial omentectomy was performed to treat the torsio...