Hyun Chul Park

  • Citations Per Year
Learn More
BACKGROUND Experience with endoscopic transmural drainage of pancreatic pseudocysts prompted the use of a similar technique for the primary treatment of pancreatic abscess. The aim of this study was to assess the feasibility, safety, and effectiveness of endoscopic transmural drainage for the treatment of pancreatic abscesses compressing the gut lumen. (More)
Merkel cell carcinoma (MCC) is a rare, aggressive cutaneous malignancy of the elderly and immunocompromised patients. It is occasionally found coexisting with other diseases, such as squamous cell carcinoma, basal cell carcinoma, actinic keratosis, miscellaneous adnexal tumors, and rarely Bowen disease. A 75-year-old woman presented with a 6-month history(More)
BACKGROUND/AIMS It was reported that the prevalence of Helicobacter pylori (H. pylori) infection decreased after gastrectomy, but persistent H. pylori infection may cause residual gastritis or stump cancer. We studied the prevalence of H. pylori infection in patients who had undergone subtotal gastrectomy for the treatment of gastric cancer and the factors(More)
DNA barcoding has been widely used in species identification and biodiversity research. A short fragment of the mitochondrial cytochrome c oxidase subunit I (COI) sequence serves as a DNA bio-barcode. We collected DNA barcodes, based on COI sequences from 156 species (529 sequences) of fish, insects, and shellfish. We present results on phylogenetic(More)
BACKGROUND There are few reports of endoscopic choledochoduodenal fistulotomy (endoscopic fistulotomy) in patients with papillary carcinoma by using a needle-knife. METHODS Among 35 patients with papillary carcinoma requiring biliary drainage, 14 with a suprapapillary bulge underwent endoscopic fistulotomy alone or with widening of the fistula by using a(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)
Erythema ab igne (EAI) is a persistent reticular macular dermatosis caused by repeated and prolonged subthreshold thermal exposure. It begins as mottling caused by local hemostasis and becomes a reticulated erythema, leading to epidermal atrophy and pigmentation, and occasionally skin ulcers and epithelial atypia. Recently, exposure to various kinds of heat(More)
Although squamous cell carcinoma (SCC) is the second most common nonmelanoma skin cancer, clinicians have difficulty diagnosing SCC of the toe because its clinical features can mimic other less serious diseases. Clinicians are especially prone to misdiagnose SCC of the toe as diabetic foot ulcer in patients with diabetes mellitus because of the clinical(More)
Cutaneous manifestations are well-recognized complications of Crohn disease (CD) that can be divided into disease-specific and reactive conditions. One of the most common reactive conditions is erythema nodosum (EN), which presents as subcutaneous tender nodules most often on the legs. On the other hand, metastatic Crohn disease (MCD) is a rare cutaneous(More)