1.Two Cases of Erosive Adenomatosis of the Nipple
Jong Heon PARK ; Tae Woong SEUL ; Hyunwoo PARK ; Su Ji CHAE ; Hwa Jung RYU
Korean Journal of Dermatology 2024;62(1):46-49
Erosive adenomatosis of the nipple (EAN) is a rare benign entity that involves abnormal proliferation of the lactiferous ducts of the nipple and often presents with visible erosive lesions, erythema, or discharge. A 34-year-old female patient visited our clinic with erythematous patches and bloody discharge from the right nipple.Ultrasonography revealed a hypervascular lesion. A punch biopsy was performed, and histopathological examination confirmed the diagnosis of EAN. A 22-year-old female patient presented with a 4-year history of itchy erythematous eczematous patches with telangiectasia, crust, and bloody discharge in the areolar region. The punch biopsy results were consistent with those of EAN. The patient underwent total excision surgery. Herein, we report cases of EAN, which were difficult to differentiate from Paget's disease or nipple eczema, highlighting the need for clinicians to pay close attention.
2.A Case of Immunoglobulin Deficiency with increased IgM.
Jong Seob LIM ; Su Heon RYU ; Dae Seong YU ; In Yeol RYU ; Seng Joon YUN ; Ji Hyun LEE ; Won Hyeog SIN ; Soon Chul HWANG
Korean Journal of Medicine 1997;52(1):126-130
Immunoglobulin deficiency with increased IgM, as defined by World Health Organization classification of primary immunodeficiency, is characterized by normal or increased concentrations of serum IgM and, in some cases, IgD, but decreased or absent IgG, IgA, and IgE. Patients with these disorders have a high incidence of recurrent pyogenic infections, including otitis media, pneumonia, and septisemia. We recently experienced a case of immunoglobulin deficiency with increased IgM in a 25-year old man. He had been suffered from recurrent pyogenic infections-pneumonia, otitis media-since about 6 months of his age. He was admitted due to pneumonia, and Haemophilus influenza was isolated from the sputum culture. Also chest X-ray showed bronchiectasis. His serum immunoglobulin levels revealed increased concentration of IgM and decreased IgG and IgA. He was successfully treated with antibiotics, and now he is being followed-up. So we present this case with the review of literature.
Adult
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Anti-Bacterial Agents
;
Bronchiectasis
;
Classification
;
Haemophilus
;
Humans
;
Immunoglobulin A
;
Immunoglobulin D
;
Immunoglobulin E
;
Immunoglobulin G
;
Immunoglobulin M*
;
Immunoglobulins*
;
Incidence
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Influenza, Human
;
Otitis
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Otitis Media
;
Pneumonia
;
Sputum
;
Thorax
;
World Health Organization
3.Dental Age Estimation Using the Demirjian Method: Statistical Analysis Using Neural Networks
Byung-Yoon ROH ; Jong-Seok LEE ; Sang-Beom LIM ; Hye-Won RYU ; Su-Jeong JEON ; Ju-Heon LEE ; Yo-Seob SEO ; Ji-Won RYU ; Jong-Mo AHN
Korean Journal of Legal Medicine 2023;47(1):1-7
In children and adolescents, dental age estimation is performed with the development of the teeth. Various statistical analysis methods have been used to determine the relationship between age and dental maturity and develop an accurate method of age calculation. This study attempted to apply a neural network model for the statistical analysis of dental age estimation in children and evaluated its applicability. This study used 1196 panoramic radiographs of patients aged 3–16 years, and 996 and 200 were randomly classified into training and test sets, respectively. The dental maturity of the mandibular left teeth was evaluated using Demirjian's method, the neural network model using the backpropagation algorithm was derived using training sets, and the errors were evaluated using 100 radiographs of each male and female as test sets. In addition, multiple linear regression analysis was conducted on the same training set, and the error was calculated by applying it to the test set and comparing it with the error of the neural network model. In the neural network model, the mean absolute error (MAE) and root mean squared error (RMSE) were 0.589 and 0.783 in male subjects and 0.529 and 0.760 in female subjects, respectively. In the multiple linear regression model, the MAE and RMSE were 0.600 and 0.748 in male subjects and 0.566 and 0.789 in female subjects, respectively. When applying the neural network model to the statistical analysis of the dental developmental stage, the results were as accurate as those of conventional statistical analysis methods. This study’s approach is expected to be useful for estimating the ages of children.
4.Complications and Survival Rate of Patients Over 80 Years Old Who Underwent Laparoscopic Gastrectomy for Gastric Cancer.
Ki Hyun KIM ; Si Hak LEE ; Cheol Woong CHOI ; Su Jin KIM ; Dae Gon RYU ; Chang In CHOI ; Dae Hwan KIM ; Tae Yong JEON ; Dong Heon KIM ; Sun Hwi HWANG
Journal of Minimally Invasive Surgery 2017;20(4):150-154
PURPOSE: As the life expectancy increases, the population of elderly patients increases. We evaluated the complications and survival rate of patients over 80 years old, who underwent laparoscopic gastrectomy. METHODS: A retrospective analysis was conducted for a total of 1,912 patients, who underwent surgery with stomach cancer from 2008 to 2016. We analyzed postoperative complications and the survival rate between the middle old (70~79, n=255) group and the very old (≥80, n=37) group. RESULTS: Among 1,912 patients, 255 people in the middle old group and 37 people within the very old group underwent laparoscopic gastrectomy. We confirmed that there was no significant difference except for the age (p<0.001) between the two groups. Overall complications were not statistically significantly different between the Middle old (70~79) group and the very old (≥80) group, 11.8% and 16.2%, respectively. There were also no statistically significant differences in severe complications beyond Clavien-Dindo classification Grade III. Risk factors for overall complications were higher in males than in females (p=0.002). Overall survival was statistically significantly lower with very old group (p<0.001). CONCLUSION: Laparoscopic gastrectomy in gastric cancer patients over 80 years of age is feasible and safe in terms of complications. However, considering the life expectancy, it seems necessary to pay attention to the patients who apply surgery.
Aged
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Classification
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Female
;
Gastrectomy*
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Humans
;
Life Expectancy
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Male
;
Postoperative Complications
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Retrospective Studies
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Risk Factors
;
Stomach Neoplasms*
;
Survival Rate*
5.A Case of Mucormycosis Found in the Breast of a Hemodialysis Patient for Diabetic Nephropathy.
Dae Sung YU ; Su Heon RYU ; Jong Seob IM ; Ji Hyun LEE ; In Yeal LYU ; Won Hyuk SHIN ; Sung Jun YUN ; Yeong Sung JAE
Korean Journal of Nephrology 1997;16(2):407-411
Mucormycosis, caused by Zygomycetes fungi of the order Mucorales, is a rare opportunistic infection which usually develops in immunosuppressed patients, especially in patients with diabetic acidosis. This infection, associated with the presence of broad, nonseparate hyphae in tissue, originates usually in the perinasal sinuses and nose, orbit, central nervous system, lung, skin, soft tissue, or gastrointestinal tract, but is occasionally disseminated from the primary location to other areas. Recently we experienced a case of Mucormycosis found in the breast of a 70-year old woman undergoing hemodialysis for diabetic nephropathy. The patients was very poor in her systemic condition. On physical examination, we found the subcutaneous mass in the left breast. Breast ultrasonography showed a mass with a relatively clear boundary in subcutaneous fatty layer and excisional biopsy confirmed infiltration of breast tissue by fungal hyphae. With improvement of patient's malnutrition via an aggressive hemodialysis, control of blood glucose and total parentral nutrition, the mass was slightly reduced in size and maintained without causing any notable symptom. Since Mucormycosis found in the breast tissue has not been reported in the literature yet, we report its case observed in a hemodialysis patient for diabetic nephropathy with the review of the literatures.
Aged
;
Biopsy
;
Blood Glucose
;
Breast*
;
Central Nervous System
;
Diabetic Ketoacidosis
;
Diabetic Nephropathies*
;
Female
;
Fungi
;
Gastrointestinal Tract
;
Humans
;
Hyphae
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Lung
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Malnutrition
;
Mucorales
;
Mucormycosis*
;
Nose
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Opportunistic Infections
;
Orbit
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Physical Examination
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Renal Dialysis*
;
Skin
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Ultrasonography, Mammary
6.Erratum to: Complications and Survival Rate of Patients Over 80 Years Old Who Underwent Laparoscopic Gastrectomy for Gastric Cancer.
Ki Hyun KIM ; Si Hak LEE ; Cheol Woong CHOI ; Su Jin KIM ; Dae Gon RYU ; Chang In CHOI ; Dae Hwan KIM ; Tae Yong JEON ; Dong Heon KIM ; Sun Hwi HWANG
Journal of Minimally Invasive Surgery 2018;21(2):90-90
Authors requested to change the name of the hospital to proper name.
7.A comparison of the BISAP score and serum procalcitonin for predicting the severity of acute pancreatitis.
Byung Geun KIM ; Myung Hwan NOH ; Choong Heon RYU ; Hwa Seong NAM ; Su Mi WOO ; Seung Hee RYU ; Jin Seok JANG ; Jong Hun LEE ; Seok Ryeol CHOI ; Byeong Ho PARK
The Korean Journal of Internal Medicine 2013;28(3):322-329
BACKGROUND/AIMS: The bedside index of severity in acute pancreatitis (BISAP) is a new, convenient, prognostic multifactorial scoring system. As more data are needed before clinical application, we compared BISAP, the serum procalcitonin (PCT), and other multifactorial scoring systems simultaneously. METHODS: Fifty consecutive acute pancreatitis patients were enrolled prospectively. Blood samples were obtained at admission and after 48 hours and imaging studies were performed within 48 hours of admission. The BISAP score was compared with the serum PCT, Ranson's score, and the acute physiology and chronic health examination (APACHE)-II, Glasgow, and Balthazar computed tomography severity index (BCTSI) scores. Acute pancreatitis was graded using the Atlanta criteria. The predictive accuracy of the scoring systems was measured using the area under the receiver-operating curve (AUC). RESULTS: The accuracy of BISAP (> or = 2) at predicting severe acute pancreatitis was 84% and was superior to the serum PCT (> or = 3.29 ng/mL, 76%) which was similar to the APACHE-II score. The best cutoff value of BISAP was 2 (AUC, 0.873; 95% confidence interval, 0.770 to 0.976; p < 0.001). In logistic regression analysis, BISAP had greater statistical significance than serum PCT. CONCLUSIONS: BISAP is more accurate for predicting the severity of acute pancreatitis than the serum PCT, APACHE-II, Glasgow, and BCTSI scores.
Biological Markers/blood
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Calcitonin/*blood
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Female
;
Humans
;
Logistic Models
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Male
;
Middle Aged
;
Pancreatitis/blood/*diagnosis
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Prognosis
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Prospective Studies
;
Protein Precursors/*blood
;
ROC Curve
;
*Severity of Illness Index
8.Factors Affecting Tumor Ablation during High Intensity Focused Ultrasound Treatment.
Aizan HASSANUDDIN ; Jun Ho CHOI ; Dong Wan SEO ; Choong Heon RYU ; Su Hui KIM ; Do Hyun PARK ; Sang Soo LEE ; Sung Koo LEE ; Myung Hwan KIM
Gut and Liver 2014;8(4):433-437
BACKGROUND/AIMS: High intensity focused ultrasound (HIFU) utilizes a targeted extracorporeal focused ultrasound beam to ablate neoplastic pancreatic tissue. We used an in vitro model to examine the effects of bone, metallic stents, plastic stents, metal plates, and cyst-like lesions on HIFU treatment. METHODS: HIFU was delivered to the phantom models implanted with foreign bodies, and the location, shape, and size of the ablated zones were evaluated. RESULTS: Bone and metallic plates reflected the ultrasound beam, shifting the ablation zone from the focal zone to the prefocal area. In the phantoms containing metal stent, plastic stent, and cyst, most of the ablative energy was reflected to the prefocal area by the surface, with the remainder penetrating through the phantom. The area of the ablated margins was significantly larger in size and volume than the intended focal ablation zone. CONCLUSIONS: During HIFU therapy, artificial or anatomical barriers could affect the direction of the ultrasound beams, shifting the ablation zone from the focal area to a prefocal site with a larger than expected ablation zone. These factors should be considered prior to HIFU treatment for pancreatic tumors because they could limit ablation success, in addition to causing complications.
Adenocarcinoma/*therapy
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High-Intensity Focused Ultrasound Ablation/*methods
;
Humans
;
Models, Anatomic
;
Pancreatic Neoplasms/*therapy
;
Phantoms, Imaging
;
Stents
9.Anti-inflammatory Effects of Sanguisorbae Radix on Contact Dermatitis Induced by Dinitrofluorobenzene in Mice.
Suzy JO ; Junghyun RYU ; Hanna KIM ; Miyoung KIM ; Mi Heon RYU ; Hyungwoo KIM ; Su-In CHO
Chinese journal of integrative medicine 2020;26(9):688-693
OBJECTIVE:
To investigate the anti-inflflammatory effects of Sanguisorbae Radix on contact dermatitis (CD).
METHODS:
Mice were sensitized by painting 30 µL of 1-fluoro-2,4-dinitrofluorobenzene (DNFB) onto each ear for 3 days. Four days later, mice were challenged by painting with 50 µL of DNFB onto the shaved dorsum every 2 days. Sanguisorbae Radix methanol extract (MESR) was applied onto the shaved dorsum every 2 days. The effects of MESR on skin thickness, skin weights, histopathological changes, skin lesions and cytokine production in DNFB-induced CD mice were investigated, as well as its effects on body weights and spleen/body weight ratio.
RESULTS:
Topical application of MESR effectively inhibited enlargement of skin thickness and weight (P<0.05). MESR treatment also inhibited hyperplasia, spongiosis and immune cell infiltration induced by DNFB in inflamed tissues and improved lesions on dorsum skin in CD mice. Moreover, treatment with MESR suppressed the increase in the levels of tumor necrosis factor α (TNF-α,P<0.01) and interferon γ (IFN-γ,P<0.05), respectively. Finally, MESR had no effect on body weight gain or spleen/body weight ratio.
CONCLUSION
These data suggest that MESR acts as an anti-inflflammatory agent that decreases the production of TNF-α and IFN-γ, resulting in reductions of skin lesions and histopathological changes in inflamed skin tissues.