Yung-Fang Chen

• Head of Department at China Medical University Hospital

Gastric MALToma is an extra-nodal marginal-type B-cell lymphoma. MALToma may occur secondary to chronic inflammation and autoimmunity. The most common gastrointestinal (GI) site of MALToma is the stomach, with approximately 50% of lesions occurring there. Synchronous upper and lower GI MALTomas rarely occur, with few cases reported. We present the...

Background and Aims: Of all primary liver tumors, primary hepatic angiosarcoma (PHA) is a rare and aggressive malignant vascular tumor. The standard therapeutic care for hepatic angiosarcoma remains unclear. This study compared the survival outcomes of aggressive treatment (resection and liver transplant) and nonaggressive treatment (chemotherapy,...

Background Whole‐brain global cerebral blood flow (CBF) determined by MRI techniques, calculated using total CBF (TCBF) from phase‐contrast MRI (PC‐MRI), and brain parenchyma volume (BPV) from T1‐weighted image, have become increasingly popular in many applications. Purpose/Hypothesis To determine if MRI‐based measurements of whole‐brain global CB...

It is well documented that transarterial embolization (TAE) can successfully stop bleeding in renal trauma patients and reduce the failure rate of conservation treatment. However, there is no consensus on the indications for TAE. The aim of this study was to evaluate the criteria for computed tomography (CT) to predict the need for TAE for patients...

Celiac artery compression syndrome (CACS) or median arcuate ligament (MAL) syndrome is a rare vascular disease. The clinical manifestations of CACS include the triad of postprandial pain, vomiting, and weight loss. The pathogenesis of CACS is the external compression of celiac artery by the MAL or celiac ganglion. Moreover, some authors also report...

Our aim was to evaluate the clinical effectiveness of transcatheter arterial embolization (TAE) in the management of hemodynamically stable blunt hepatic trauma (BHT) patients with contrast material extravasation into the peritoneal cavity, known as type I contrast material extravasation, on computed tomography (CT) scan. Adult patients who sustain...

Nonoperative management (NOM) has become the standard treatment of blunt hepatic injury (BHI) for stable patients. Contrast extravasation (CE) on computed tomography (CT) scan had been reported as a sign that is associated with NOM failure. The goal of this study was to further investigate the risk factors of NOM failure in patients with CE on CT s...

Nonoperative management (NOM) of blunt splenic injuries has been widely accepted, and the application of splenic artery embolization (SAE) has become an effective adjunct to NOM. However, complications do occur after SAE. In this study, we assess the factors leading to the major complications associated with SAE. Focusing on the major complications...

Angioembolization is an effective adjunct to the management of blunt splenic injuries (BSI) that are not surgically treated. However, in some cases patients are unable to undergo angioembolization due to changes in their hemodynamic condition. In this study we attempt to define the characteristics of patients who need angioembolization in high-grad...

Angioembolization is an effective adjunct in the management of high-grade renal injuries not surgically treated. However, in some cases, the bleeding may stop spontaneously, without the need for embolization. The aim of this study was to define the characteristics of patients who need angioembolization for high-grade blunt renal injuries (BRIs). Pa...

This study evaluated the efficacy of transarterial embolization for the treatment of tumor bleeding in neck tumors following radiation or chemotherapy. We performed a case series with chart review of 25 patients with clinically suspected tumor bleeding that occurred in the period between August 2003 and April 2007. All patients were admitted to and...

PURPOSE Transcatheter arterial embolization (TAE) is effective in the management of high grade renal injuries. This study aimed to evaluate the need of TAE in renal trauma patients by correlating the findings of CT with angiography. METHOD AND MATERIALS 32 renal trauma patients receiving CT and subsequent angiography were enrolled. The extent of h...

Life-threatening hemorrhages with hemodynamic instability are uncommon in patients with sustained maxillofacial trauma, but when they occur, require immediate surgical intervention if conservative treatment fails. This study assessed the effects of transcatheter arterial embolization (TAE) in the treatment of maxillofacial trauma-induced life-threa...

Background/Purpose. To evaluate the effectiveness of transcatheter arterial embolization (TAE) for controlling arterial hemorrhage due to pelvic trauma. Methods. In this retrospective study, we analyzed the surgical outcomes of 40 hemodynamically unstable patients who underwent pelvic angiography for traumatic pelvic hemorrhage during the period Ja...

This study compared the management, prognostic factors and outcomes of patients with emphysematous pyelonephritis (EPN). Twenty-one patients with EPN were studied between September 1996 and August 2005, and were assigned to two groups. Patients in Group 1 received conservative treatment with/without percutaneous catheter drainage (PCD) while patien...

Celiac axis compression syndrome (CACS) is a rare entity of mesenteric ischemia, secondary to inadequate blood supply to the intestine, resulting in weight loss because of postprandial abdominal pain. Superior mesenteric artery (SMA) syndrome is an uncommon cause of intestinal obstruction manifesting with epigastric pain, bilious vomiting, and post...

Splenic preservation is currently the trend for treatment of patients with splenic trauma to avoid complications of splenectomy. This study aimed to evaluate the feasibility of emergent transcatheter arterial embolization (TAE) for hemodynamically unstable patients with blunt splenic injury. In a period of 2 years, 65 patients of blunt splenic trau...

Mesenteric fibromatosis is currently a diagnostic and therapeutic challenge. We report a case of mesenteric fibromatosis in a 29-year-old man with a 2-month history of periumbilical fullness who was discovered to have an abdominal mass with hydronephrosis. To the best of our knowledge, we report the first case of hydronephrosis in a mesenteric fibr...

Gallstone ileus is a rare disease and accounts for 1%-4% of all cases of mechanical intestinal obstruction. It usually occurs in the elderly with a female predominance and may result in a high mortality rate. Its diagnosis is difficult and early diagnosis could reduce the mortality. Surgery remains the mainstay of treatment. We report two cases of...

Mesenteric ischemia is an uncommon etiology of abdominal pain. Celiac axis compression syndrome is an extremely rare cause of mesenteric ischemia. The primary pathological mechanism is the external compression of the celiac trunk by median arcuate ligament. The clinical manifestation of celiac axis compression syndrome includes postprandial pain, d...

Perforation is a serious complication of peptic ulcer disease occurring in 5% of such patients. Occasionally, the perforation may be sealed off by the omentum or the adjacent organs. Sealed perforated ulcer with pseudotumor formation is very rarely encountered. Here we present a case of gastric pseudotumor induced by perforation of a peptic ulcer....

It is difficult to manage arteriovenous malformations or fistulas of the face because of the abundant vascular network in this region. They are commonly manifest in childhood or adolescence and often present with significant hemorrhage or cosmetic defects. We report a one-year-old infant with a facial arteriovenous fistula. It is successfully treat...

Internal hernia is a rare cause of intestinal obstruction and most cases of internal hernia are left paraduodenal hernia. It typically involves the fossa of Landzert just lateral to the fourth portion of the duodenum. Patients with left paraduodenal hernia do not have specific clinical manifestations and preoperative radiological diagnosis is diffi...

Ruptured pseudoaneurysm with gastrointestinal bleeding is a rare but frequently fatal complication in patients with pancreatitis. Arteriographic embolization of visceral artery pseudoaneurysms is a safe and highly effective technique for the identification and treatment of hemorrhage even in critically ill patients. We report a case of massive hema...

37 Symptomatic bowel malrotation in adults is rare. We present a patient with midgut malrotation and discuss the embryology, diagnosis and the radi- ographic features. A 72-year-old man presented with mild abdominal pain for two weeks. Computed Tomography (CT) revealed that twisted small bowel encircles the central superior mesenteric artery (SMA)...

The development of bile duct stones is a common biliary tract disorder in Taiwan. Surgery and choledochoscopy are the current methods of treatment. The purpose of this study was to describe percutaneous transhepatic intervention under fluoroscopy for the removal of biliary stones. Between July 1998 and June 1999, 46 patients with obstructive jaundi...

The isolated iliac aneurysm is a rare vascular abnormality. It is located deep in the pelvic cavity, and is barely palpable. There is a potential for compression or erosion of adjacent organs, and complications with vascular-enteric fistula or arterio-venous fistula. Imaging studies play an important role in both diagnosis and treatment. We report...

Complicated pancreatic inflammatory diseases are often life-threatening, multifocal, and multibacterial disorders. Untreated, these lesions often prove fatal. The purpose of the study is to describe interventional radiologic techniques for diagnosis and treatment of complicated peripancreatic fluid collections. Between January 1994 and December 199...