1.Untreated Congenital Vertical Talus Associated with Tarsal Codlition: A Case Report
Chang Gon KIM ; Sang Wan LEE ; Byung Duk PARK
The Journal of the Korean Orthopaedic Association 1971;6(2):139-142
Congenital vertical talus associating tarsal coalition, which is a very anomalous condition and causes severe rigid flat foot, is presented with literary reviews. This case was treated with soft tissue release and triple arthrodesis.
Arthrodesis
;
Flatfoot
;
Talus
2.Transcatheter Closure of Patent Foramen Ovale in a Stroke Patient under the Guidance of Transesophageal Echocardiography.
Sang Sig CHEONG ; Sang Gon LEE ; Myeong Ki HONG ; Seong Wook PARK ; Seung Jung PARK
Korean Circulation Journal 1996;26(3):731-733
Interest in the prevalence of patent foramen ovale(PFO) and its relation to embolic stroke has increased with the sophistication of methods for noninvasive cardiac assessment. The effect of foramen ovale closure on the risk for subsequent strokes is promised. A 22-year old woman was presented with sudden onset of cerebral infarct. She had a patent formen ovale, and right to left shunt during the Valsalva maneuver, which was diagnosed by transesophageal contrast echocardiography. Transcatheter closure of PFO was performed with Rashkind PDA umbrella under the guidance of transesophageal echocardiography. Transcatheter closure of PFO can be accomplised with little morbidity and may reduce the risk of embolic episode.
Echocardiography
;
Echocardiography, Transesophageal*
;
Female
;
Foramen Ovale
;
Foramen Ovale, Patent*
;
Humans
;
Prevalence
;
Stroke*
;
Valsalva Maneuver
;
Young Adult
3.PCNA Labelling index and AgNORs of Transitional Cell Carcinoma of the Urinary Bladder.
Byung Gon PARK ; Sang Yong LEE ; Mee Sook ROH ; Seo Hee RHA ; Sook Hee HONG
Korean Journal of Pathology 1994;28(5):469-477
Proliferating cell nuclear antigen (PCNA, PC10), an auxillary protein of DNA polymerase, plays a main role in the early stage of DNA Synthesis and is synthesized from Gl phase to s phase of the cell cycle. Nucleolar organizer region (NORs) are DNA loops encoding RNA proteins(AgNORs). To evaluate correlation with PCNA labelling index (LI)and AgNORs according to histological grades and clinical stages of transitional cell carcinoma of the urinary bladder, the authors analysed 54 transitional cell carcinoma using immunohistochemical stain for PCNA and silver stain for AgNORs in paraffin sections. The comparison of PCNA (PC10) LI and clinical stage showed a significant correlation (p<0.05), where as PCNA (PC10) LI according to histologic grade showed no significant correlation. High grade tumors showed increase PCNA LI. Superficial tumors (Ta-Tl) showed significantly lower PCNA LI than muscle invasive tumors (T2-T4)(p<0.05). There was no significant correlation between AgNORs and clinical stage, bur higher stage and higher grade tumors showed increased noubers of AgNORs. These results suggest that PCNA LI has a significant correlation with clinical stages of transitional cell carcinoma of the urinary bladder.
4.Giant sized epidermal inclusion cyst of the breast initially mimicking a large fibroadenoma or phyllodes tumor.
Journal of the Korean Surgical Society 2012;83(2):107-110
Epidermal inclusion cysts are formed by inclusion of keratinizing squamous epithelium within the dermis, resulting in a cyst filled with lamellated keratin. These benign cysts are usually very small and intradermal subcutaneous lesions. They can occur anywhere in the body although they are more common on the face, trunk, neck, extremities and scalp. Only a few cases of epidermal cysts of the breast have been reported in the literature. An epidermal inclusion cyst of the breast can result in several problems, even if the size is unusual. We encountered a case of a giant sized epidermal inclusion cyst of the breast initially mimicking a large fibroadenoma or phyllodes tumor.
Breast
;
Breast Neoplasms
;
Dermis
;
Epidermal Cyst
;
Epithelium
;
Extremities
;
Fibroadenoma
;
Keratins
;
Neck
;
Phyllodes Tumor
;
Scalp
5.Congenital Esophageal Stenosis due to Tracheobronchial Remnants: A case report.
Byung Gon PARK ; Mee Sook RHO ; Sang Yong LEE ; Seo Hee RHA ; Sook Hee HONG
Korean Journal of Pathology 1994;28(4):442-444
Congenital esophageal stenosis due to tracheobronchial remnants is one of main forms of congenital esophageal stenosis, and it was first described by Frey and Duschel in l936. An 18-month-old male presented with underdevelopment and dehydration state due to persistent vomiting several times per day since 3 months after his birth. Esophagogram revealed an elongated and diiated esophagus with marked stenosis at distal portion. Partial distal esophagectomy was performed. Histologically, the thickened esophageal wall is composed of tracheobronchial remnants including hyaline cartilages, mucous glands, and ductal structures lined by ciliated respiratory epithelium under stratified squamous mucosa.
Male
;
Humans
6.Congenital Esophageal Stenosis due to Tracheobronchial Remnants: A case report.
Byung Gon PARK ; Mee Sook RHO ; Sang Yong LEE ; Seo Hee RHA ; Sook Hee HONG
Korean Journal of Pathology 1994;28(4):442-444
Congenital esophageal stenosis due to tracheobronchial remnants is one of main forms of congenital esophageal stenosis, and it was first described by Frey and Duschel in l936. An 18-month-old male presented with underdevelopment and dehydration state due to persistent vomiting several times per day since 3 months after his birth. Esophagogram revealed an elongated and diiated esophagus with marked stenosis at distal portion. Partial distal esophagectomy was performed. Histologically, the thickened esophageal wall is composed of tracheobronchial remnants including hyaline cartilages, mucous glands, and ductal structures lined by ciliated respiratory epithelium under stratified squamous mucosa.
Male
;
Humans
7.Bowel perforation associated sunitinib therapy for recurred gastric gastrointestinal stromal tumor.
Hyo Sin KIM ; Sung Soo KIM ; Sang Gon PARK
Annals of Surgical Treatment and Research 2014;86(4):220-225
Gastrointestinal stromal tumor (GIST) is the most common mesenchymal neoplasm of the gastrointestinal tract. Several recent findings that there are activating mutations in the KIT and PDGFRA (platelet-derived growth factor receptor-alpha) genes of GISTs provide the rationale for using targeted therapies such as imatinib or sunitinib. Sunitinib, an oral multitargeted receptor tyrosine kinase inhibitor that inhibits kinases such as KIT, PDGFR (platelet-derived growth factor recepter), and VEGFR (vascular endothelial growth factor receptor), was recently approved for the treatment of imatinib-refractory GIST. Sunitinib is generally well tolerated and has an acceptable toxicity profile; an adverse event such as bowel perforation is rare. We present a patient with imatinib-refractory GIST who was successfully treated using sunitinib, but developed bowel perforation. The mechanism involved in bowel perforation associated with sunitinib is unknown. However, we presume that in our patient, the dramatic reduction in disseminated peritoneal metastases and bowel invasion of recurrent GIST during sunitinib treatment might have resulted in the bowel perforation.
Endothelial Growth Factors
;
Gastrointestinal Stromal Tumors*
;
Gastrointestinal Tract
;
Humans
;
Intestinal Perforation
;
Neoplasm Metastasis
;
Phosphotransferases
;
Protein-Tyrosine Kinases
;
Imatinib Mesylate
8.Bowel perforation associated sunitinib therapy for recurred gastric gastrointestinal stromal tumor.
Hyo Sin KIM ; Sung Soo KIM ; Sang Gon PARK
Annals of Surgical Treatment and Research 2014;86(4):220-225
Gastrointestinal stromal tumor (GIST) is the most common mesenchymal neoplasm of the gastrointestinal tract. Several recent findings that there are activating mutations in the KIT and PDGFRA (platelet-derived growth factor receptor-alpha) genes of GISTs provide the rationale for using targeted therapies such as imatinib or sunitinib. Sunitinib, an oral multitargeted receptor tyrosine kinase inhibitor that inhibits kinases such as KIT, PDGFR (platelet-derived growth factor recepter), and VEGFR (vascular endothelial growth factor receptor), was recently approved for the treatment of imatinib-refractory GIST. Sunitinib is generally well tolerated and has an acceptable toxicity profile; an adverse event such as bowel perforation is rare. We present a patient with imatinib-refractory GIST who was successfully treated using sunitinib, but developed bowel perforation. The mechanism involved in bowel perforation associated with sunitinib is unknown. However, we presume that in our patient, the dramatic reduction in disseminated peritoneal metastases and bowel invasion of recurrent GIST during sunitinib treatment might have resulted in the bowel perforation.
Endothelial Growth Factors
;
Gastrointestinal Stromal Tumors*
;
Gastrointestinal Tract
;
Humans
;
Intestinal Perforation
;
Neoplasm Metastasis
;
Phosphotransferases
;
Protein-Tyrosine Kinases
;
Imatinib Mesylate
10.Experimental Study of Heterograft Method on the Healing Process of Long Bone Defect in Rabbits.
Sang Won PARK ; Oh Yong KANG ; Dae Cheol JUNG ; Dae Gon WIE
The Journal of the Korean Orthopaedic Association 1997;32(2):449-456
Bone grafts are used in the repair of segmental bone loss caused by severe trauma, bone tumors and infection, and to enhance bone healing in ununited fractures. Autograft is the most frequently used and the most effective method, but because of inadquate supply and additional operative morbidity, allograft or heterograft could be used. Heterograft has been shown to be poorly tolerated by the host and ineffective in providing an osteogenic system. The objective of this study is to observe healing process of a segmental defect of long bone following to heterograft, and to compare the difference of histologic process between autograft and hetero graft. Twenty-four white rabbits weighing 1,000 to 2,000 grams were used for the experiment. A segment measuring three times the diameter of the ulna shaft (1.5 to 2cm) of rabbit was resected with its periosteum. Twenty-four white rabbit were divided into three groups (control, autograft, heterograft group) according to graft methods, each group comprising of eight rabbits. The animals were sacrificed at 2, 4, 8 and 12 weeks after the experimental procedures and were periodically evaluated by radiographs and histology. The obtained results were as follows: 1. The results of the radiological evaluation showed that no ungrafted ulnar defects (control group) healed. In the heterograft group, partial union was observed from 8 weeks and complete union was obtained on 12 weeks. In the autograft group, partial union was observed on 2 weeks and complete union was obtained on 4 weeks. 2. The results from histological examination showed that the ungrafted ulnae did not heal across the defect but some immature trabeculae were founded on the edges of the defect. In the heterograft group, immature trabeculae were appeared from 4 weeks and defects were substituted with mature trabeculae on 12 weeks. In autograft group, defects were substituted with immature trabeculae on 2 weeks and with mature trabeculae on 4 weeks. As seen in the results of the experiment, union could be obtained with the heterograft, but needed more long time than autograft. Though the autograft is the most effective graft method in bone defect or non-union, above results suggest the heterograft as the alternative method in the treatment of large bone defect, in a multioperated patient, or in the children or the elderly, combined with autograft or alone.
Aged
;
Allografts
;
Animals
;
Autografts
;
Child
;
Fractures, Ununited
;
Heterografts*
;
Humans
;
Periosteum
;
Rabbits*
;
Transplants
;
Ulna