No abstract available.
Facial Bones* ; Humans

The papillary eccrine adenoma is a rare benign sweat gland neoplasm charscterized by potentislly locally aggressive clinical course. We report herein a case of papillsry eccrine adenoma in a 28-year-old female who presented single intradermal tumor on the right postauricular ares. Histopathological findings showed dilated ducts containing eosinophilic or keratinous materials and intraluminal papillary rowths.
Adenoma* ; Adult ; Eosinophils ; Female ; Humans ; Sweat Gland Neoplasms

No abstract available.
Nasal Cavity* ; Neurilemmoma*

PURPOSE: This study aims to establish a new strategy that provides for the rapid establishment of human clonal adipose derived stem cell (hADSC) lines with aspirated adipose tissue and to characterize newly generated hMSC lines for their cell phenotype, differentiation potential, lineage-specific gene expression. METHODS: Human adipose tissue-derived stem cells (hADSCs) were isolated from subcutaneous adipose tissue based on standard protocols. After incubation for 2 h, only the cell culture supernatant was transferred to a new dish. This process was repeated several times with 30 h incubations. RESULTS: We confirmed the difference in growth rate, however, differences were not seen in the differentiation capabilities and stemness of the each cell lines. CONCLUSION: It is necessary to establish cell lines via single cell level for application to disease specific tissue engineering.
Adipose Tissue ; Cell Culture Techniques ; Cell Line ; Humans ; Phenotype ; Stem Cells ; Subcutaneous Fat ; Tissue Engineering

Duplications of the stomach account for only 3.8% of gastrointestinal duplication, mainly discovered during first year of life. Etiopathogenesis is unknown. The most widely accepted theory is recannalization with fusion of longitudinal epithelial fold. The most frequent presented symptoms and signs include gastric outlet obstruction with vomiting, and palpable mass in the epigatric area. An upper gatrointestinal series usually reveals evidence of extrinsic mass effect of intramural lesion. An abdominal ultrasonographic finding is cystic mass lesion with double layer. Histologically, the wall of intramural cyst is composed of orderly layers of alimentary mucosa, submucosa, and muscle fibers. Recommended management is complete excision & simple closure of duplication without violation of the gastric lumen. In this case, 3-day old male newborn suffered from symptoms of gastric outlet obstruction, multiple gastric duplication cysts were found in pyloric canal and greater curvature. The cystic wall was composed with typical 3 layers of gastric mucosa, submucosa, and muscle fibers. The cystic wall was composed with typical 3 layers of gastric mucosa, submucosa, and muscle fibers. Surgical excision was successfully done.
Gastric Mucosa ; Gastric Outlet Obstruction ; Humans ; Infant, Newborn* ; Male ; Mucous Membrane ; Stomach ; Vomiting

The frictional force has been considered as an harmful factor in an active unit where tooth movement occurs, but as an advantageous factor in anchor unit that resist tooth movement. That is, efficient tooth movement is planned by using ligation methods that have low levels of bracket-wire frictional force and the anchorage control can be achieved by using ligation methods that have high levels of bracket-wire frictional force that result in binding of the bracket accompanied by little or no tooth movement. The purpose of this study was to evaluate the frictional force generated between bracket and wire in accordance with the methods of ligation, the material of ligation and the passage of time under artificial saliva. Tested were 0.017X0.022 inch stainless steel wires in standard edgewise twin brackets for upper central incisors in a 0.018-inch slot The wires were ligated into the brackets with elastomeric modules and stainless steel ligatures. Whole tie, half tie, twisting tie and double overlay tie were done with elastomeric modules. With 0.009-inch stainless steel ligature whole tie and half tie were done by needle holder and whole tie by ligature tying plier. With 0.012-inch stainless steel ligature whole ties were done by needle holder. Whole tie groups of elastomeric module were kept in artificial saliva bath at 37degress C for 28 days. The frictional force was recorded by means of an Instron universial testing instrument (4202 INSTRON, Instron Co., U.S.A.) at initial, 7, 14, 21, and 28 days. The results for ligated samples in a simulated oral environment revealed the following: In elastomeric module whole tie, 28 days group was significantly greater mean static frictional force than any other group but there were no significant differences among any other group (p>0.05). Elastomeric module twisting ties were significantly greater mean static frictional forces than any other ligation method but there were no significant differences between twisting tie and double overlay tie (p>0.05). Twisting tie, double overlay tie, whole tie, half tie showed differences in decreasing order. Stainless steel half tie produced lower mean static frictional forcee than whole tie, ligation by ligature tying plier produced greater mean static frictional force than by needle holder and ligation with 0.012-inch stainless steel ligature produced greater mean static frictional force than with 0.009-inch stainless steel ligature (p<0.05). There were no significant differences between the mean static frictional forces of elastomeric whole tie and stainless steel whole tie (p>0.05).
Baths ; Elastomers ; Friction* ; Humans ; Incisor ; Ligation* ; Needles ; Orthodontic Brackets* ; Saliva, Artificial ; Stainless Steel ; Tooth Movement

Nerve sheath myxoma or neurothekeoma, a rare cutaneous neoplasm probably originating from the nerve sheath, is classified into three groups as classical, cellular, and mixed types based on cellularity, mucin content and growth patterns. Only two cases of nerve sheath myxoma have been reported in the Korean literatures. We report a case of nerve sheath myxoma occurring on the scalp of a 29 year-old woman. It was identified as the mixed type by histopathological, immunohistochemical and electronmicroscopic findings.
Adult ; Female ; Humans ; Mucins ; Neurothekeoma* ; Scalp ; Talus

BACKGROUND AND OBJECTIVES : Acute ischemic stroke in the distribution of the anterior inferior cerebellar artery (AICA) is known to be associated with vertigo, nystagmus, facial weakness, and gait ataxia. There have been few reports on deafness associated with the AICA infarction. Furthermore, previous neurological reports have not emphasized the inner ear as a localization of sudden deafness. The aim of this study was to investigate the incidence of deafness associated with the AICA infarction and the sites predominantly involved in deafness. MATERIALS AND METHOD : During two years we prospectively identified 12 consecutive patients with unilateral AICA infarction diagnosed by brain MRI. Pure tone audiogram, speech discrimination testing, stapedial reflex testing, and auditory brainstem responses were performed to localize the site of lesion in the auditory pathways. Electronystagmography was also performed to evaluate the function of the vestibular system. RESULTS :The most common affected site on brain MRI was the middle cerebellar peduncle (11). Four patients had vertigo and/or acute auditory symptoms such as hearing loss or tinnitus as an isolated manifestation from 1day to 2 months prior to infarction. Audiological testings confirmed sensorineural hearing loss in 11 (92%) patients, predominantly involved the cochlea in 6 and retrocochlear in 1. The other 4 patients had a severe to profound hearing loss most likely of cochlear origin. Electronystagmography demonstrated no response to caloric stimulation in 10 (83%) patients. CONCLUSIONS : In our series, sudden deafness was an important sign for the diagnosis of the AICA infarction. Audiological examinations suggest that sudden deafness in AICA infarction is usually due to dysfunction of the cochlea, resulting from ischemia to the inner ear.
Arteries* ; Auditory Pathways ; Brain ; Cochlea ; Deafness ; Diagnosis ; Ear, Inner ; Electronystagmography ; Evoked Potentials, Auditory, Brain Stem ; Gait Ataxia ; Hearing Loss ; Hearing Loss, Sensorineural ; Hearing Loss, Sudden* ; Humans ; Incidence ; Infarction* ; Ischemia ; Magnetic Resonance Imaging ; Prospective Studies ; Reflex ; Speech Discrimination Tests ; Stroke ; Tinnitus ; Vertigo

Kniest syndrome (OMIM #156550) is a rare autosomal dominant disorder caused by a dysfunction of type II collagen, which is encoded by the COL2A1 gene (OMIM +120140) mapped to chromosome 12q13.11. Type II collagen, a molecule found mostly in the cartilage and vitreous tissues, is essential for the normal development of bones and other connective tissues. Kniest syndrome is a type II collagenopathy that presents as skeletal abnormality associated with disproportionate dwarfism, kyphoscoliosis, enlarged joints, visual loss, hearing loss, and cleft palate. This report describes a Korean patient with Kniest syndrome who was diagnosed with typical clinical features and radiologic findings. The patient presented with disproportionately short stature and kyphoscoliosis from birth. A skeletal survey revealed fused lamina in the thoracic spine, hemivertebrae, flexion deformities in multiple joints, and plagiocephaly.
Cartilage ; Cleft Palate ; Collagen Type II ; Congenital Abnormalities ; Connective Tissue ; Dwarfism ; Hearing Loss ; Humans ; Joints ; Parturition ; Plagiocephaly ; Spine

Kniest syndrome (OMIM #156550) is a rare autosomal dominant disorder caused by a dysfunction of type II collagen, which is encoded by the COL2A1 gene (OMIM +120140) mapped to chromosome 12q13.11. Type II collagen, a molecule found mostly in the cartilage and vitreous tissues, is essential for the normal development of bones and other connective tissues. Kniest syndrome is a type II collagenopathy that presents as skeletal abnormality associated with disproportionate dwarfism, kyphoscoliosis, enlarged joints, visual loss, hearing loss, and cleft palate. This report describes a Korean patient with Kniest syndrome who was diagnosed with typical clinical features and radiologic findings. The patient presented with disproportionately short stature and kyphoscoliosis from birth. A skeletal survey revealed fused lamina in the thoracic spine, hemivertebrae, flexion deformities in multiple joints, and plagiocephaly.
Cartilage ; Cleft Palate ; Collagen Type II ; Congenital Abnormalities ; Connective Tissue ; Dwarfism ; Hearing Loss ; Humans ; Joints ; Parturition ; Plagiocephaly ; Spine