1.Invasive Ductal Carcinoma Within a Borderline Phyllodes Tumor Associated With Extensive Ductal Carcinoma In Situ: A Case Report
Wang Hyon KIM ; Kyung Hee LEE ; Hwa Eun OH ; Bo Kyoung SEO ; Min Sun BAE
Investigative Magnetic Resonance Imaging 2024;28(4):202-206
Phyllodes tumors of the breast are rare biphasic fibroepithelial neoplasms that may coexist with breast carcinomas. Herein, we report a case of invasive ductal carcinoma (IDC) within a borderline phyllodes tumor accompanied by extensive ductal carcinoma in situ (DCIS) in the same breast. A 72-year-old woman presented with a palpable lump in the right breast.Mammography showed an oval mass associated with segmental microcalcifications, and breast ultrasound (US) revealed a 2.3 cm oval mass and an associated non-mass lesion. Based on US-guided core needle biopsy, the initial biopsy result of the non-mass lesion suggested DCIS; however, the mass was diagnosed as a fibroepithelial lesion. Preoperative dynamic contrast-enhanced magnetic resonance imaging showed a rim-enhancing oval mass with areas of T2 hyperintensity, accompanied by segmental non-mass enhancement. The mass was highly suspicious for malignancy and was considered imaging-pathology discordant.Subsequently, the patient underwent mastectomy. Histopathological examination of the surgical specimens confirmed a borderline phyllodes tumor with an IDC within the tumor and an extensive intraductal component. The invasive carcinoma component was triplenegative breast cancer. This case highlights the diagnostic challenges of identifying coexisting carcinomas within phyllodes tumors and emphasizes the necessity for increased awareness among radiologists regarding this possibility.
2.Invasive Ductal Carcinoma Within a Borderline Phyllodes Tumor Associated With Extensive Ductal Carcinoma In Situ: A Case Report
Wang Hyon KIM ; Kyung Hee LEE ; Hwa Eun OH ; Bo Kyoung SEO ; Min Sun BAE
Investigative Magnetic Resonance Imaging 2024;28(4):202-206
Phyllodes tumors of the breast are rare biphasic fibroepithelial neoplasms that may coexist with breast carcinomas. Herein, we report a case of invasive ductal carcinoma (IDC) within a borderline phyllodes tumor accompanied by extensive ductal carcinoma in situ (DCIS) in the same breast. A 72-year-old woman presented with a palpable lump in the right breast.Mammography showed an oval mass associated with segmental microcalcifications, and breast ultrasound (US) revealed a 2.3 cm oval mass and an associated non-mass lesion. Based on US-guided core needle biopsy, the initial biopsy result of the non-mass lesion suggested DCIS; however, the mass was diagnosed as a fibroepithelial lesion. Preoperative dynamic contrast-enhanced magnetic resonance imaging showed a rim-enhancing oval mass with areas of T2 hyperintensity, accompanied by segmental non-mass enhancement. The mass was highly suspicious for malignancy and was considered imaging-pathology discordant.Subsequently, the patient underwent mastectomy. Histopathological examination of the surgical specimens confirmed a borderline phyllodes tumor with an IDC within the tumor and an extensive intraductal component. The invasive carcinoma component was triplenegative breast cancer. This case highlights the diagnostic challenges of identifying coexisting carcinomas within phyllodes tumors and emphasizes the necessity for increased awareness among radiologists regarding this possibility.
3.Invasive Ductal Carcinoma Within a Borderline Phyllodes Tumor Associated With Extensive Ductal Carcinoma In Situ: A Case Report
Wang Hyon KIM ; Kyung Hee LEE ; Hwa Eun OH ; Bo Kyoung SEO ; Min Sun BAE
Investigative Magnetic Resonance Imaging 2024;28(4):202-206
Phyllodes tumors of the breast are rare biphasic fibroepithelial neoplasms that may coexist with breast carcinomas. Herein, we report a case of invasive ductal carcinoma (IDC) within a borderline phyllodes tumor accompanied by extensive ductal carcinoma in situ (DCIS) in the same breast. A 72-year-old woman presented with a palpable lump in the right breast.Mammography showed an oval mass associated with segmental microcalcifications, and breast ultrasound (US) revealed a 2.3 cm oval mass and an associated non-mass lesion. Based on US-guided core needle biopsy, the initial biopsy result of the non-mass lesion suggested DCIS; however, the mass was diagnosed as a fibroepithelial lesion. Preoperative dynamic contrast-enhanced magnetic resonance imaging showed a rim-enhancing oval mass with areas of T2 hyperintensity, accompanied by segmental non-mass enhancement. The mass was highly suspicious for malignancy and was considered imaging-pathology discordant.Subsequently, the patient underwent mastectomy. Histopathological examination of the surgical specimens confirmed a borderline phyllodes tumor with an IDC within the tumor and an extensive intraductal component. The invasive carcinoma component was triplenegative breast cancer. This case highlights the diagnostic challenges of identifying coexisting carcinomas within phyllodes tumors and emphasizes the necessity for increased awareness among radiologists regarding this possibility.
4.Development of Random Forest Algorithm Based Prediction Model of Alzheimer’s Disease Using Neurodegeneration Pattern
JeeYoung KIM ; Minho LEE ; Min Kyoung LEE ; Sheng-Min WANG ; Nak-Young KIM ; Dong Woo KANG ; Yoo Hyun UM ; Hae-Ran NA ; Young Sup WOO ; Chang Uk LEE ; Won-Myong BAHK ; Donghyeon KIM ; Hyun Kook LIM
Psychiatry Investigation 2021;18(1):69-79
Objective:
Alzheimer’s disease (AD) is the most common type of dementia and the prevalence rapidly increased as the elderly population increased worldwide. In the contemporary model of AD, it is regarded as a disease continuum involving preclinical stage to severe dementia. For accurate diagnosis and disease monitoring, objective index reflecting structural change of brain is needed to correctly assess a patient’s severity of neurodegeneration independent from the patient’s clinical symptoms. The main aim of this paper is to develop a random forest (RF) algorithm-based prediction model of AD using structural magnetic resonance imaging (MRI).
Methods:
We evaluated diagnostic accuracy and performance of our RF based prediction model using newly developed brain segmentation method compared with the Freesurfer’s which is a commonly used segmentation software.
Results:
Our RF model showed high diagnostic accuracy for differentiating healthy controls from AD and mild cognitive impairment (MCI) using structural MRI, patient characteristics, and cognitive function (HC vs. AD 93.5%, AUC 0.99; HC vs. MCI 80.8%, AUC 0.88). Moreover, segmentation processing time of our algorithm (<5 minutes) was much shorter than of Freesurfer’s (6–8 hours).
Conclusion
Our RF model might be an effective automatic brain segmentation tool which can be easily applied in real clinical practice.
5.Effect of attachments and palatal coverage of maxillary implant overdenture on stress distribution: a finite element analysis
Jong-Hee PARK ; Yuan-Kun WANG ; Jeong-Jin LEE ; Yeon-Hee PARK ; Jae-Min SEO ; Kyoung-A KIM
Journal of Dental Rehabilitation and Applied Science 2020;36(2):70-79
Purpose:
The purpose of this study was to evaluate the effect of attachments and palatal coverage on stress distribution in maxillary implant overdenture using finite element analysis.
Materials and Methods:
Four maxillary overdenture 3-D models with four implants placed in the anterior region were fabricated with computer-aided design. 1) Ball-F: Non-splinted ball attachment and full palatal coverage, 2) Ball-P: Non-splinted ball attachment and U-shaped partial palatal coverage, 3) Bar-F: Splinted milled bar attachment and full palatal coverage, 4) Bar-P: Splinted milled bar attachment and U-shaped partial palatal coverage. Stress distribution analysis was performed with ANSYS workbench 14. 100 N vertical load was applied at the right first molar unilaterally and maximum stress was calculated at the implant, peri-implant bone and mucosa.
Results:
The use of the ball attachment showed lower maximum stress on implant and peri-implant bone than the use of the milled bar attachment. But it showed contrary tendency in the mucosa. Regardless of attachment, full palatal coverage showed lower maximum stress on implant, peri-implant bone and mucosa.
Conclusion
Within the limitation of this study, ball attachment improved stress distribution on implant and periimplant bone rather than milled bar attachment in maxillary implant overdenture. Also, full palatal coverage is more favorable in stress distribution.
6.Effectiveness of radiotherapy for head and neck skin cancers: a single-institution study
Jae Wang KIM ; Byung Min YUN ; Myoung Soo SHIN ; Jae Kyoung KANG ; JungJu KIM ; Young Suk KIM
Radiation Oncology Journal 2019;37(4):293-301
PURPOSE: External beam radiotherapy (EBRT) is a useful option to treat head and neck skin cancer patients who are not indicated for surgery. In this study, we evaluated the treatment outcomes of EBRT in an Asian population.MATERIALS AND METHODS: The records from 19 head and neck skin cancer patients (10 with squamous cell carcinoma and 9 with basal cell carcinoma) who were treated with definitive or adjuvant EBRT from 2009 to 2017 were retrospectively reviewed. The radiotherapy doses administered ranged from 50 to 66 Gy (median, 55 Gy) with 2.0–2.75 Gy per daily fraction (median, 2.5 Gy). The T stage at presentation was as follows: Tis (1 patient), T1 (11 patients), T2 (6 patients), and T3 (1 patient). None had regional lymph node disease or distant metastasis at presentation. The local failure-free survival (LFFS) rates, toxicity, and cosmetic results were analyzed.RESULTS: The median age was 75.5 years (range, 52.6 to 92.5 years). The median follow-up duration from the completion of radiotherapy was 44.9 months (range, 5.8 to 82.6 months). One local failure occurred in a patient with a 2.1-cm posterior neck squamous cell carcinoma at 32.5 months after radiotherapy (1/19, 5.3%). The 3-year LFFS rate was 91.7%. No patients died from skin cancer during follow-up, and no grade 3 complications occurred. The cosmetic outcomes were excellent for 16 (84.2%) and good for 3 (15.8%) of the 19 patients.CONCLUSION: EBRT offers good local control and cosmetic outcomes in patients with head and neck skin cancer, with no grade 3 complications.
Asian Continental Ancestry Group
;
Carcinoma, Squamous Cell
;
Follow-Up Studies
;
Head
;
Humans
;
Lymph Nodes
;
Neck
;
Neoplasm Metastasis
;
Radiotherapy
;
Retrospective Studies
;
Skin Neoplasms
;
Skin
;
Treatment Outcome
7.Amisulpride Switching in Schizophrenic Patients Who Showed Suboptimal Effect and/or Tolerability to Current Antipsychotics in a Naturalistic Setting: An Explorative Study.
Yongmin KIM ; Sheng Min WANG ; Kyung Phil KWAK ; Ho Kyoung YOON ; Chi Un PAE ; Jung Jin KIM ; Won Myong BAHK
Clinical Psychopharmacology and Neuroscience 2016;14(4):371-377
OBJECTIVE: Despite numerous atypical antipsychotics (AAP) available, many patients with schizophrenia still experience lack of efficacy and persistent side-effects. Switching from one AAP to another with a different side-effect profile has become a common clinical strategy. We aimed to investigate effect of switching to amisulpride in patients who showed suboptimal effect and/or tolerability to current antipsychotics treatment. METHODS: This was a 6-week, prospective, multicenter, open-label, flexible-dose study in patients with schizophrenia. Switching to amisulpride was achieved using cross-titration within 7 days (day 1: 300 mg on day 1 then flexibly dosed 400–800 mg/day). The primary end-point measure was proportion of patients achieving improvement in clinical benefit at week 6 based on Clinical Global Impressions-Clinical Benefit (CGI-CB). Secondary endpoints included change in scores in CGI-CB, CGI-Severity (CGI-S), Subjective Satisfaction Scores (SSS), Brief Psychiatric Rating Scale (BPRS), and Simpson and Angus Rating Scale. RESULTS: Among 37 patients switched to amisulpride, 76% completed study and 56.8% had clinical benefit measure by CGI-CB. CGI-CB and CGI-S scores showed significant improvement at week 6 compared to baseline (mean changes of CGI-CB and CGI-S scores: −1.7+1.0, p<0.0001 and −0.6±0.0, p=0.001, respectively). SSS scores also improved significantly (mean change: 2.1±2.6, p<0.0001). Mean weight of patients significantly lowered compared to baseline (mean change: −1.2±2.0, p<0.0001). CONCLUSION: Patients with schizophrenia who showed suboptimal efficacy or tolerability with their current antipsychotics and thereby switched to amisulpride resulted in clinical benefit in terms of both improved efficacy and tolerability. The small sample size limits generalizability of the study results.
Antipsychotic Agents*
;
Brief Psychiatric Rating Scale
;
Humans
;
Prospective Studies
;
Sample Size
;
Schizophrenia
8.The Efficacy and Safety of Clonazepam in Patients with Anxiety Disorder Taking Newer Antidepressants: A Multicenter Naturalistic Study.
Sheng Min WANG ; Jung Bum KIM ; Jeong Kyu SAKONG ; Ho Suk SUH ; Kang Seob OH ; Jong Min WOO ; Sang Woo YOO ; Sang Min LEE ; Sang Yeol LEE ; Se Won LIM ; Seong Jin CHO ; Ik Seung CHEE ; Jeong Ho CHAE ; Jin Pyo HONG ; Kyoung Uk LEE
Clinical Psychopharmacology and Neuroscience 2016;14(2):177-183
OBJECTIVE: This study compared the efficacy and tolerability of clonazepam with other benzodiazepines in patients with anxiety disorders. METHODS: Inclusion criteria were as follows: age >20 years, diagnosis of anxiety disorder according to the Diagnostic and Statistical Manual of Mental Disorders 4th edition, text revision (DSM-IV-TR) criteria, taking only one type of antidepressant, and prescribed one of three oral benzodiazepines (alprazolam, clonazepam, or lorazepam). At baseline and week 6, clinical benefit was evaluated using the Clinical Global Impression-Severity Scale (CGI-S), Clinical Global Impression-Anxiety Scale (CGI-anxiety), and Clinical Global Impression-Sleep Scale (CGI-sleep). RESULTS: Among 180 patients, no differences in demographic characteristics among the three benzodiazepine groups were noted. After six weeks of treatment, all benzodiazepine groups showed significant improvements in CGI-S, CGI-anxiety, and CGI-sleep scores (p<0.001). There were no differences in mean changes in CGI-S, CGI-anxiety and CGI-sleep among the three benzodiazepine groups. The incidence of side effects was significantly lower in the clonazepam group than with the other benzodiazepines. The incidences of adverse events for the clonazepam, alprazolam, and lorazepam groups were 26.7% (n=20), 48.4% (n=31), and 43.9% (n=18), respectively. CONCLUSION: The present study suggests that clonazepam is as efficacious as other benzodiazepines for the treatment of various anxiety disorders. Furthermore, the safety profile of clonazepam was superior to the other benzodiazepines in this study.
Alprazolam
;
Anti-Anxiety Agents
;
Antidepressive Agents*
;
Anxiety Disorders*
;
Anxiety*
;
Benzodiazepines
;
Clonazepam*
;
Diagnosis
;
Diagnostic and Statistical Manual of Mental Disorders
;
Humans
;
Incidence
;
Lorazepam
9.Characteristic Risk Factors Associated with Planned versus Impulsive Suicide Attempters.
Jaeha KIM ; Kang Sook LEE ; Dai Jin KIM ; Seung Chul HONG ; Kyoung Ho CHOI ; Youngmin OH ; Sheng Min WANG ; Hae Kook LEE ; Yong Sil KWEON ; Chung Tai LEE ; Kyoung Uk LEE
Clinical Psychopharmacology and Neuroscience 2015;13(3):308-315
OBJECTIVE: The present study aimed to investigate predictors for planned suicide attempters. METHODS: This study included 1,003 patients who attempted suicide and visited emergency department. They were divided into two groups, planned suicide attempters (SAs; n=133 [13.3%]) and impulsive SAs (n=870, [86.7%]), and the demographic variables, clinical characteristics, factors related to suicide, and psychiatric resources of the groups were compared. RESULTS: Major depressive disorder and substance use disorders were more common among planned SAs than among impulsive SAs. Additionally, the planned SAs were older, more likely to be divorced, separated or widowed, and more likely to have comorbid medical illnesses, severe depression, higher suicidality, and self-blaming tendencies than the impulsive SAs. Financial problems and physical illnesses were more common in planned SAs but interpersonal conflicts were more frequent in impulsive SAs. Planned SAs had fewer previous suicide attempts but these were more serious suicide attempts. The presence of the hope to die, a written will, and suicidal ideation of a repetitive, intense, and continuous nature were predictive of planned SAs. CONCLUSION: The present findings demonstrated that planned SAs had more severe psychopathology and medical illnesses than impulsive SAs. Therefore, screening for depression, substance use disorders, and suicidal plans among old and medically ill patients may be important for preventing suicide attempts.
Depression
;
Depressive Disorder, Major
;
Divorce
;
Emergency Service, Hospital
;
Hope
;
Humans
;
Impulsive Behavior
;
Mass Screening
;
Psychopathology
;
Risk Factors*
;
Substance-Related Disorders
;
Suicidal Ideation
;
Suicide*
;
Suicide, Attempted
;
Widowhood
10.Overactive Bladder Successfully Treated with Duloxetine in a Female Adolescent.
Sheng Min WANG ; Hae Kook LEE ; Yong Sil KWEON ; Chung Tai LEE ; Kyoung Uk LEE
Clinical Psychopharmacology and Neuroscience 2015;13(2):212-214
Overactive bladder (OAB) is defined as urgency, usually with frequency and nocturia, and with or without urge incontinence. Duloxetine, an antidepressant that inhibits reuptake of serotonin and norepinephrine, is indicated for the treatment of stress urinary incontinence in Europe. In this paper, we present a case of a 17-year-old female patient with OAB and depressive symptoms who was successfully treated with duloxetine. This case suggests duloxetine can be an option for patient with OAB, and it also highlights the need for further studies of duloxetine's use in the treatment of OAB.
Adolescent*
;
Depression
;
Europe
;
Female*
;
Humans
;
Nocturia
;
Norepinephrine
;
Serotonin
;
Urinary Bladder, Overactive*
;
Urinary Incontinence
;
Urinary Incontinence, Urge
;
Duloxetine Hydrochloride

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