1.The Study of Proliferating Cell Nuclear Antigen (PCNA) Reactivity in Fibrohistiocytic Tumors.
Jae Hyuk LEE ; Yong Han PARK ; Hyang Mi KO ; Ji Shin LEE ; Chang Soo PARK
Korean Journal of Pathology 1994;28(4):350-357
Fibrohistiocytic tumors are a diverse group of benign and malignant soft tissue lesions, including dermatofibroma, dermatofibrosarcomaprotuberans, and malignant fibrous histiocytoma. On the clinical point of view, the distinction between benign and malignant lesions and malignancy grading is far more important. Therefore, we investigated 23 fibrohistiocytic tumors, using PCNA (PC10) which was a useful marker of proliferating activity, to differentiate the benign lesions from the malignant and correlate with other prognostic factors including tumor necrosis. cellularity, histologic grade, and mitotic counts. The results obtained were as follows 1) Positive tumor cells were clearly identified by the characteristic diffuse or granular nuclear staining. 2) The number of PCNA-positive tumor cells were 2.16+/-2.39% in dermatofibroma, 16.12+/-7.38% in dermatofibrosacoma protuberans, and 28.02+/-17.47% in the malignant fibrous histiocytoma. The numbers of PCNA-positive tumor cells in the malignant lesions higher than in the benign (p<0.001). 3) Deep seated, large size (>5 cm) and recurred or metastatic cases of MFH were more the high PCNA index (more than 20%) than the low index (less than 20%) groups. 4) PCNA index in MFHs had positive correlation with the number of mitotic counts (r=0.7582, p<0.001), cellularity (r=0.5908, p<0.05) and histologic grade (r=0.4164, p<0.05). These results suggested that reactivity on PCNA might assist in the distinction between benign and malignant lesions in fibrohistiocytic tumors, and could be a useful prognostic factor in the patients with malignant fibrous histiocytoma.
Neoplasm Metastasis
2.Application of Ultrasound-Guided Trigger Point Injection for Myofascial Trigger Points in the Subscapularis and Pectoralis Muscles to Post-Mastectomy Patients: A Pilot Study.
Hyuk Jai SHIN ; Ji Cheol SHIN ; Wan Sung KIM ; Won Hyuk CHANG ; Sang Chul LEE
Yonsei Medical Journal 2014;55(3):792-799
PURPOSE: To investigate the therapeutic effectiveness of ultrasound (US)-guided trigger point injection for myofascial trigger points (MTrPs) in the internal rotator muscles of the shoulder in post-mastectomy patients. MATERIALS AND METHODS: This pilot study was a non-controlled, prospective, clinical trial. Nineteen post-mastectomy patients with a diagnosis of at least one active MTrP in the subscapularis and/or pectoralis muscles were included. We performed trigger point injections into the subscapularis muscle deep behind the scapula as well as the pectoralis muscle for diagnostic and therapeutic purpose by the newly developed US-guided method. RESULTS: Visual analogue scale and range of motion of the shoulder for external rotation and of abduction showed significant improvement immediately after the first injection and 3 months after the last injection compared with baseline (p<0.05 for both). Duration from onset to surgery and duration of myofascial pain syndrome in the good responder group were significantly shorter than in the bad responder group (p<0.05). Patients did not report any complications related to the procedure or serious adverse events attributable to the treatment. CONCLUSION: In post-mastectomy patients with shoulder pain, US-guided trigger point injections of the subscapularis and/or pectoralis muscles are effective for both diagnosis and treatment when the cause of shoulder pain is suspected to originate from active MTrPs in these muscles, particularly, the subscapularis.
Adult
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Aged
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Anesthetics, Local/administration & dosage/therapeutic use
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Female
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Humans
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Injections, Intramuscular/methods
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Lidocaine/administration & dosage/therapeutic use
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Mastectomy
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Middle Aged
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Muscle, Skeletal/drug effects/ultrasonography
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Myofascial Pain Syndromes/drug therapy
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Pectoralis Muscles/drug effects/*ultrasonography
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Trigger Points/*ultrasonography
3.Recovery of Motion Fraction and Shoulder Function ofter Operative Treatment of Shoulder Instability.
Chang Hyuk CHOI ; Koing Woo KWON ; Shin Kun KIM ; Sang Wook LEE ; Dong Kyu SHIN ; Bum Jin PARK
The Journal of the Korean Orthopaedic Association 1999;34(5):839-844
PURPOSE: We expected the motion fraction could be checked, with simple radiographic examination, according to the guide-line of fluoroscopic technique, and recovery of the function also could be correlated with the improvement of the motion fraction. MATERIALS AND METHODS: We measured the motion fraction of the glenohumeral and scapulothoracic movement using fluoroscope in 30-degree intervals of arm elevation in the scapular plane. The ratio of glenohumeral to scapulothoracic movement (thetaGH/thetaST) was 1.6 for the full range of motion in scapular plane. During arm elevation, scapular tilting from the coronal plane was decreased from 42 degrees to 20 degrees tilting as well as internal rotation (scapular extension). We also measured the motion fraction (thetaGH/thetaST) and functional recovery of the shoulder in 11 patients after operative treatment of the shoulder instability in 15 patients from December 1996 to August 1997. RESULTS: We could find out a significant correlation between the recovery of motion fraction and shoulder function. These results would be applied in planing rehabilitation program after treatment of the shoulder instability. CONCLUSIONS: The measuring technique of glenohumeral to scapulothoracic movement (thetaGH/thetaST) with fluoroscopy could be applied to the simple radiographic measurement at the out-patient clinic in order to identify the pathology and recovery of shoulder motion after treatment
Arm
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Fluoroscopy
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Humans
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Outpatients
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Pathology
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Range of Motion, Articular
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Rehabilitation
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Shoulder*
4.Correlation between Expression of c-erbB-2 Oncogene and Various Prognostic Factors in the Colorectal Carcinoma.
Wan KIM ; Hong Ran CHOI ; Ji Shin LEE ; Jong Tae PARK ; Chang Soo PARK ; Kyu Hyuk CHO
Korean Journal of Pathology 1993;27(3):217-225
The c-erbB-2 oncogene, which is a new human proto-oncogene similar to EGFR structurally, generates a glycoprotein of tyrosine kinase family with a molecular weight of 185,000 To evaluate the prognostic significance of c-erbB-2 oncogene expression in colorectal carcinoma, We analysed 73 colorectal carcinomas in paraffin sections immunohistochemically, using the monoclonal antibody specific for the c-erbB-2 oncogene product and correlated with clinicopathological data. The results were as follows 1) The immunoreactivity for c-erbB-2 oncogene was localized to cell membrane of the tumor cells and occasionally observed within the cytoplasm. 2) The positivity of c-erbB-2 oncogene expression was 71.2%(52/73) of the colorectal carcinomas overall. According to the histological types, the positivity of c-erbB-2 oncogene in adenocarcinoma(77.4%) was higher than that in mucinous carcinoma(36.4%)(p<0.05). 3) Expression of c-erbB-2 oncogene was significantly correlated with lymph node metastasis or distant metastasis(p=0.0117), Dukes stage(p=0.0432), and TNM classification(p=0.0102). These results suggest that c-erbB-2 oncogene expression may be used as a prognostic factor of colorectal carcinoma because of its correlation with other clinicopathological prognostic factors.
Humans
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Neoplasm Metastasis
5.Have You Ever Suspected Stercoral Perforation?: A Case Report.
Young Shin CHO ; Chang Hyuk JUNG ; Hye Young JANG
Journal of the Korean Society of Emergency Medicine 2015;26(1):103-106
Diagnosis and management of abdominal pain in old age is considered a challenge to emergency physicians. Stercoral perforation is an infrequent event, which most commonly develops in old age. We report on a case of stercoral perforation in an elderly woman, which, to the best of our knowledge, is one of a few reported cases in the medical literature. A 74-year-old woman who presented at our emergency department complaining of lower abdominal pain was found to have a perforation of the colon. Examination revealed a stercoral perforation by fecaloma. She underwent Hartman's operation and colostomy. Stercoral perforation is rare; however, emergency physicians should consider this disease entity in elderly patients with abdominal pain.
Abdominal Pain
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Aged
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Colon
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Colostomy
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Diagnosis
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Emergencies
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Emergency Service, Hospital
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Female
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Humans
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Intestinal Perforation
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Peritonitis
6.Expression of Claudin-1 and -7 in Clear Cell Renal Cell Carcinoma and Its Clinical Significance.
Hong Il SHIN ; Byung Hoon KIM ; Hyuk Soo CHANG ; Chun Il KIM ; Hye Ra JUNG ; Choal Hee PARK
Korean Journal of Urology 2011;52(5):317-322
PURPOSE: We investigated the correlations between the expression of claudin-1 and claudin-7 in clear cell renal cell carcinoma (clear cell RCC) and clinical parameters. MATERIALS AND METHODS: The subjects of this study were 119 patients with confirmed clear cell RCC between January 2000 and December 2007. Their RCC tissues were immunohistochemically stained for claudin-1 and claudin-7. The correlations between the expression of claudin and parameters such as sex, age, body mass index (BMI), tumor size, TNM stage, Furhman nuclear grade, postoperative distant metastasis, and cancer-specific survival were analyzed. RESULTS: Among the total 119 subjects, claudin-1 was expressed in 18 (15.1%) and claudin- 7 in 31 (26.1%). Claudin-1 was expressed in patients who were older (p=0.007), who had a greater tumor size (p=0.001), who had a higher pathologic T stage (p=0.009), who had preoperative distant metastasis (p=0.035), and who had a higher Furhman nuclear grade (p=0.004). Claudin-7 was expressed only in patients who had a higher Furhman nuclear grade (p=0.031). The risk of postoperative distant metastasis was associated with the expression of claudin-1 (p<0.001) but not with the expression of claudin-7 (p=0.668). The expression of claudin-1 and -7 was not associated with cancer-specific survival (p>0.05). CONCLUSIONS: In clear cell RCC, claudin-1 was expressed in patients who were older and who had a greater tumor size, who had higher T or M stages, and who had a higher Furhman nuclear grade. The expression of claudin-1 was associated with a higher risk of postoperative distant metastasis.
Body Mass Index
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Carcinoma, Renal Cell
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Claudin-1
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Humans
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Neoplasm Metastasis
7.A neonate with Say–Barber–Biesecker–Young– Simpson syndrome with a novel pathogenic mutation in KAT6B gene: A case report
Ji Hye SHIN ; Han Hyuk LIM ; Mi Hyeon GANG ; Seon Young KIM ; Shin-seung YANG ; Mea-young CHANG
Journal of Genetic Medicine 2021;18(2):147-151
The Say–Barber–Biesecker–Young–Simpson variant of Ohdo syndrome (SBBYSS) (Online Mendelian Inheritance in Man #603736) is a rare autosomal dominant disorder and clinically features blepharophimosis with ptosis, a mask-like facial appearance, cryptorchidism, congenital heart defect, long thumbs/great toes, and thyroid dysfunction. The etiology of SBBYSS has been shown to be due to heterozygous KAT6B gene mutation. Here we report a case of a neonate with SBBYSS identified a novel mutation in KAT6B gene. The patient showed typical dysmorphic facies, cryptorchidism with micropenis, overriding fingers, and long thumbs and toes at birth. He had also hypothyroidism, large atrial septal defect, and sensorineural hearing loss. The next generation sequencing identified a heterozygous novel variant, c.5206C>T (p.Gln1736Ter) in KAT6B gene. At the 9 months of age, he underwent patch closure for atrial septal defect. Until the 12-month follow-up, he was under-developed.
8.Soft and Hard Tissue Augmentation with/without Polydeoxyribonucleotide for Horizontal Ridge Deficiency: A Pilot Study in a Dog Model
Hyunwoo LIM ; Yeek HERR ; Jong-Hyuk CHUNG ; Seung-Yun SHIN ; Seung-Il SHIN ; Ji-Youn HONG ; Hyun-Chang LIM
Journal of Korean Dental Science 2024;17(2):53-63
Purpose:
To investigate the effects of simultaneous soft and hard tissue augmentation and the addition of polydeoxyribonucleotide (PDRN) on regenerative outcomes.
Materials and Methods:
In five mongrel dogs, chronic ridge defects were established in both mandibles. Six implants were placed in the mandible, producing buccal dehiscence defects. The implants were randomly allocated to one of the following groups: 1) control: no treatment; 2) GBR: guided bone regeneration (GBR) only; 3) GBR/PDRN: GBR+PDRN application to bone substitute particles; 4) GBR/CTG: GBR+connective tissue grafting (CTG);5) GBR/VCMX: GBR+soft tissue augmentation using volume stable collagen matrix (VCMX); and 6) group GBR/VCMX/ PDRN: GBR+VCMX soaked with PDRN. The healing abutments were connected to the implants to provide additional room for tissue regeneration. Submerged healing was achieved. The animals were euthanized after four months. Histological and histomorphometric analyses were then performed.
Results:
Healing abutments were gradually exposed during the healing period. Histologically, minimal new bone formation was observed in the dehiscence defects. No specific differences were found between the groups regarding collagen fiber orientation and density in the augmented area. No traces of CTG or VCMX were detected. Histomorphometrically, the mean tissue thickness was greater in the control group than in the other groups above the implant shoulder (IS). Below the IS level, the CTG and PDRN groups exhibited more favorable tissue thickness than the other groups.
Conclusion
Failure of submerged healing after tissue augmentation deteriorated the tissue contour. PDRN appears to have a positive effect on soft tissues.
9.Subclavian Portal Approach for Isolated Subscapularis Tendon Tear: Technical Note.
Chang Hyuk CHOI ; Shin Kun KIM ; Il Woong CHANG ; Se Sik KIM
Journal of the Korean Shoulder and Elbow Society 2009;12(2):221-225
PURPOSE: For an isolated tear of the subscapularis tendon, the presented technique using a subclavian portal provides both a good angle for anchor placement and sufficient space for managing the upper portion of a subscapularis tendon tear. MATERIALS AND METHODS: The conventional method needs 2 additional portals for traction, debriding the footprint and anchor fixation for repair. The presented technique requires only an anterior portal for suture management and a subclavian portal without cannula for suture anchoring and placement of suture hooks. RESULTS: The two suture limbs of the anchor can be placed on the subscapularis tendon by the switching technique and these limbs are repaired sequentially. CONCLUSION: This technique is simple and reproducible and it can be applied to partial tears and minimally retracted subscapularis tears.
Catheters
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Extremities
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Suture Anchors
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Sutures
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Tendons
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Traction
10.Long-Term Effect of Loxoprofen Sodium on Nocturia in Patients with Benign Prostatic Hyperplasia.
Hong Il SHIN ; Byung Hoon KIM ; Hyuk Soo CHANG ; Choal Hee PARK ; Chun Il KIM
Korean Journal of Urology 2011;52(4):265-268
PURPOSE: We evaluated the long-term effects of loxoprofen on nocturia in patients with benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: Between January 2006 and December 2008, 40 BPH patients with 2 or more episodes of nocturia received an alpha-blocker, 5-alpha reductase inhibitor, and a single dose of 60 mg of loxoprofen at night before sleep for 12 months (Group I). During the same period, 38 BPH patients selected as the control group received an alpha-blocker and 5-alpha reductase inhibitor (Group II). Patients were reevaluated after 3, 6, and 12 months of treatment by the number of nocturia episodes and side effects. RESULTS: After 3 months of treatment, the number of nocturia episodes decreased significantly compared with baseline in both group I and group II (1.9+/-0.7, 2.1+/-0.7, respectively, p<0.05). The degree of decrease in nocturia was significantly different between the groups (-1.5+/-0.9, -1.1+/-0.9, respectively, p=0.034). After 6 and 12 months, the number of nocturia episodes decreased significantly compared with baseline in both group I and group II (p<0.05), but the degree of decrease was not significantly different between the groups (p>0.05). After 6 and 12 months of treatment in group I, treatment-emergent adverse events, including 5 cases of gastric discomfort (12.5%), 3 cases of leg edema (7.5%), and 1 case of decreased urine volume (2.5%), occurred in 9 of the 40 (22.5%) patients. CONCLUSIONS: Loxoprofen can be an effective treatment for patients with nocturia secondary to BPH in the short term. Long-term use of loxoprofen is not recommended because of the side effects.
Edema
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Humans
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Leg
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Nocturia
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Oxidoreductases
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Phenylpropionates
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Prostatic Hyperplasia
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Sodium