Hyun Sik Park

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BACKGROUND/AIMS Improvements in the endoscopic evaluation and management of gastric cancer have made it possible to determine the depth of invasion during endoscopic examination. The aim of this study was to elucidate the differences between early gastric cancer (EGC) that resembles advanced gastric cancer (AGC) and AGC that resembles EGC. METHODS We(More)
BACKGROUND Gastric cancers exhibit various degrees of (18)F-fluorodeoxyglucose (FDG) uptakes on positron emission tomography/computed tomography (PET/CT) imaging. The aim of this study was to evaluate whether FDG uptake in gastric cancer varies according to the microsatellite instability (MSI) status. METHODS Consecutive gastric cancer patients who(More)
During replantation of distal fingertip amputation, identification of the artery is the most important but time consuming procedure. Depending on the damaged arterial structure, we classified distal fingertip amputations into 4 zones, on the basis of three dimensional concept. Zone 1 injury was defined as damage to the proximal central pulp artery; zone 2(More)
Nodular gastritis is a Helicobacter pylori-related gastritis with endoscopically proven gooseflesh skin-like nodularity in the gastric antrum. Although an association between nodular gastritis and gastric malignancies has been suggested, there is neither a treatment strategy nor a treatment guideline for this condition because of its relative rarity. We(More)
Vascular clamps are often used during microvascular repair and anastomosis. However, pressure exerted by the clamps may damage the vessels, which compromises patency of vessels. This article reports on a microsurgical suture technique performed without any clamp to avoid clamp-related problems.
We found a case of hypoplasia of vertebral artery with fibromuscular dysplasia in an 82-yr-old Korean female cadaver during a routine dissection course. In the present case, intracranial hypoplasia in left vertebral artery and bilateral origin of posterior inferior cerebellar artery at the vertebrobasilar junction were recognized. Histopathologically, left(More)
To investigate the effects of a single-dose GnRHa on the thermal ablation of MRgFUS in women with symptomatic fibroids. In this pilot study, a single-dose GnRHa was administered in 17 patients with a total of 20 fibroids. Volume and scaled signal intensity (SSI) as an objective marker of fluid contents were prospectively followed up with serial MR scans.(More)
Ephexin-1 functions as guanine nucleotide exchange factors for the Rho-type GTPases which have important roles in neuronal development including axon guidance, migration, morphogenesis, and plasticity of neurons. As little is known about ephexin-1 in the cerebellum, we investigated the immunolocalization of ephexin-1 in the developing canine cerebellum.(More)
The title compound, C5H11N5O, crystallized with two independent mol-ecules in the asymmetric unit. The two mol-ecules differ in the orientation of the 2-methyl-propan-2-ol unit, with the hy-droxy H atoms pointing in opposite directions. In the crystal, mol-ecules are linked via O-H⋯O and N-H⋯O hydrogen bonds, forming ribbons propagating along [10-1]. The(More)
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