Biomedical subjects
Publications and source records attributed to H F Wong.
We report a case of retractile mesenteritis which involved the rectosigmoid colon and extended into the retroperitoneum with ureteral obstruction. These complications are rare. The radiological features [including computed tomography (CT)] are described.
A case of acute common bile duct obstruction caused by a roundworm in a 6-year-old girl is reported. Computed tomography (CT) and magnetic resonance imaging (MRI) showed "bull's-eye" and "eye-glass" appearances of the ascaris in the common bile duct. On reformation of the transverse CT and coronal MR images, the tubular Ascaris was better depicted. MRI and navigator endoscopic demonstrations of the common bile duct ascaris have not been described previously in the literature. These CT and MRI findings may be helpful in the diagnosis of Ascaris.
We present a case of giant superior mesenteric artery (SMA) aneurysm in a patient with systemic lupus erythematosus (SLE). The ultrasound, computed tomography, magnetic resonance, and angiographic findings are discussed. To our knowledge, SLE associated with a giant SMA aneurysm as a late complication of previous lupus mesenteric arteritis has not been reported previously.
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Dynamic enhancing feature in mediastinal hemangioma was rarely reported. Slow, gradually increasing and prolonged contrast stains are the diagnostic hints in our case that avoid the hemorrhagic catastrophe from transthoracic core needle biopsy. A rare finding of an aberrant vessel entering into the tumor was valuable for operative planning. Dynamic computed tomography (CT) can provide more information for evaluation in such cases.
This is a presentation of a case of tuberous sclerosis with multifocal hamartomas in the retroperitoneum, both kidneys, and the liver. Lymphangiectasia and numerous ectatic lymphatic channels penetrating through the retroperitoneal angiomyolipoma were demonstrated by lymphography and computed tomography. The findings in our study may document the presence of degenerative change in the lymphatic system--not just in elastic vessels--an association which has not yet been reported in the radiological literature.
We report the magnetic resonance imagine (MRI) findings of an 11-month-old baby with delay onset of congenital diaphragmatic hernia (CDH). The capability of visualizing diaphragmatic discontinuity, connecting bowel segments between abdomen and chest are clearly demonstrated. The various techniques of diagnosing diaphragmatic hernia are described and we emphasize the potential usefulness of MRI in CDH.
Superior mesenteric artery (SMA) syndrome is a rare clinical disease. We present a case of a 15-year-old girl with complaints of vomiting and epigastric pain during on admission. Her general appearance was tall and thin. She had the upper gastrointestinal (UGI) barium study, angiography and abdominal sonography performed to confirm the diagnosis of SMA syndrome. She received medical treatment and was discharged after the symptoms were relieved. Her followup had a smooth course in our out-patient department.
In this paper, we present a preterm infant with acute focal lung edema due to central venous catheter migration into the right pulmonary vein. The substances aspirated from the endotracheal tube contained the parenteral nutrition fluid. Thus, parenteral nutrition fluid extravasation into the lung or a vasculopulmonary fistula was suspected. The course of complication was smooth after the catheter was withdrawn into the right atrium. This unusual presentation during TPN hyperalimentation was described in order to prevent a potentially dangerous event.