2.A Case of Adult Colloid Milium on the Scalp.
Joon Won HUH ; Young In JEONG ; Geon KIM ; Mihn Sook JUE ; Hyangjoon PARK ; Eun Jung KIM
Korean Journal of Dermatology 2015;53(9):740-741
5.Clinicopathological Analysis of Growth Patterns of Malignant Intraductal Papillary Mucinous Tumors of the Pancreas: Unusual Growth Pattern of Fistulous Extension.
Kee Taek JANG ; Ghee Young KWON ; Geunghwan AHN
Korean Journal of Pathology 2007;41(1):38-43
BACKGROUND: Usually, a malignant intraductal papillary mucinous tumor (IPMT) of the pancreas shows invasive carcinoma. Recently, IPMT with an unusual growth pattern of a fistulous extension was reported. However, little is known about malignant IPMTs with a different growth pattern of invasion and fistulous extension. METHODS: Malignant IPMTs were classified into invasive (colloid or tubular type) carcinomas and the fistulous extension type according to their growth patterns. Their clinicopathological characteristics were compared. RESULTS: Among a total of 68 cases of IPMT, there were 16 cases with malignant IPMT; eight, six and two of the colloid, tubular, and fistulous extension types, respectively. The immunohistochemical (IHC) expression of MUC1 was found in seven out of eight colloid and five out of six tubular types, but there was no IHC expression of MUC1 in the fistulous extension type. The IHC expression of MUC2 was noted in one of the eight colloid, one of the six tubular and in both cases with the fistulous extension type. There was no difference in the tumor recurrence rates bet- ween the different growth patterns. CONCLUSIONS: IPMT with the fistulous extension type has a peculiar extension pattern consisting of multiple fistulous tracts without a mass. Although most of the epithelium in the fistulous tract show moderate to severe dysplasia, only the fistulous extension should be considered to be an unusual growth pattern of malignant IPMT. The clinical significance of this unusual type of IPMT remains to be determined.
Colloids
;
Epithelium
;
Mucins*
;
Pancreas*
;
Recurrence
6.Colloid Cyst of the Lateral Ventricle: A Case Report.
Journal of Korean Neurosurgical Society 1991;20(10-11):960-965
No abstract available.
Colloid Cysts*
;
Colloids*
;
Lateral Ventricles*
7.A prospective clinical study of crystalloid and colloid solutions as priming additive fluids for cardiopulmonary bypass of the small children.
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(5):469-479
No abstract available.
Cardiopulmonary Bypass*
;
Child*
;
Colloids*
;
Humans
;
Prospective Studies*
8.Three dimensional accuracy analysis of dental stone casts fabricated using irreversible hydrocolloid impressions.
Journal of Dental Rehabilitation and Applied Science 2015;31(4):316-328
PURPOSE: The objects of this study was to evaluate the accuracy of the dental stone casts made from alginate impressions according to storage condition and stone pouring time. MATERIALS AND METHODS: Each of upper and lower impressions of dental model was taken. The dental stone models were made immediately, 10, 30, 60, 180, 360 minutes after the impressions were taken at each storage condition. 3D models were constructed by scanning the stone model using 3D laser scanner. With Reference points, positioned on digital models, linear measurements of the dimensional change were compared by 3D metrology software, 3D average models were made and superimposition to identify the specific site of dimensional change and to measure surface deviation (mm). RESULTS: Dental stone models which were made immediately after taking the impression showed the smallest linear dimensional change. As the stone pouring time was prolonged, the linear dimensional change was increased. More than 180 minutes after impression taking, linear dimensional change and surface distortion increased in the posterior molar region, regardless of the storage condition. CONCLUSION: For the optimum accuracy of the dental stone casts, alginate impression should be poured as soon as possible. If there were a need for storing, a humidor with 100% relative humidity must be used and be stored less than 180 minutes to fabricate the accurate dental model.
Colloids*
;
Dental Models
;
Humidity
;
Linear Models
;
Molar
9.Performance Characteristics of High Efficiency Fluid and Blood Warmer using Print Circuit Board Heater at Various Flow Rates.
Sung Won JUNG ; Tae Hyung HAN ; Jin Young LEE ; In Suk KWAK ; Mi Hwa JUNG ; Rim Soo WON ; Young Ryong CHOI
Korean Journal of Anesthesiology 2006;51(5):598-605
BACKGROUND: Currently available warming devices are often heavy and cumbersome, requiring development of more portable, user friendly, high efficiency fluid and blood warmer. The intravenous fluid heating capabilities of a new, heat-plate print circuit board (PCB) based warmer at various low flow rates were tested. METHODS: Model Joyother BM-1(R) was investigated for normal saline (0.9% NaCl) and colloid at various infusion rates (60-6000 ml/hr). Final temperatures were measured by electronic thermometer after passing through the warmer. Effective warming was defined as a fluid temperature > or = 32degrees C. Ambient temperature was maintained at 22-25degrees C. Degree of heating capability and temperature decrease were compared and correlated between different flow rates. RESULTS: The device warmed the room temperature crystalloid and colloid efficiently. Its warming capability was continuously improved as the flow rates increased in all tested flow rates, reaching maximum 41degrees C. After the warming, the temperature decrease showed high negative correlation with the flow rates. The extent of cooling was less in colloid. No overheating was noted at sudden brake. CONCLUSIONS: Joyother BM-1(R) heated crystalloid and colloid sufficiently and safely enough for clinical application (exit temperature > or = 35degrees C) at various flow rates. The warming capacity and the length of the intravenous tube infusion system determined the efficiency of the warmer. Further study is warranted for the efficiency of warming for the blood and its element changes.
Colloids
;
Heating
;
Hot Temperature
;
Hypothermia
;
Thermometers
10.Colloid Milium : Electron Microscopic Findings.
Soo Il CHUN ; Won Hyoung KANG ; Kyu Kwang WHANG
Korean Journal of Dermatology 1986;24(2):314-319
Ultrastructural study was taken in a 48 year old male farmer with colloid milium. Electrcn microscopically, colloid was mainly composed of protofilaments, amorphous substance and degenerating collagens surrounded by halos. Colloidal filaments were curved and branched at their ends. Fibroblasts near the colloid island contained amorphous materials and protofilaments idnitical to that of colloid materials, Thus we suggest that. colloid milium may be produced by the abnormal fibroblasts or may be derived from actiinically damaged collagen fibers.
Collagen
;
Colloids*
;
Fibroblasts
;
Humans
;
Male
;
Middle Aged