Differentiated thyroid cancer demonstrates a wide range of clinical presentations, from very indolent cases to those with an aggressive prognosis. Therefore, diagnosing and treating each cancer appropriately based on its risk status is important. The Korean Thyroid Association (KTA) has provided and amended the clinical guidelines for thyroid cancer management since 2007. The main changes in this revised 2024 guideline include 1) individualization of surgical extent according to pathological tests and clinical findings, 2) application of active surveillance in low-risk papillary thyroid microcarcinoma, 3) indications for minimally invasive surgery, 4) adoption of World Health Organization pathological diagnostic criteria and definition of terminology in Korean, 5) update on literature evidence of recurrence risk for initial risk stratification, 6) addition of the role of molecular testing, 7) addition of definition of initial risk stratification and targeting thyroid stimulating hormone (TSH) concentrations according to ongoing risk stratification (ORS), 8) addition of treatment of perioperative hypoparathyroidism, 9) update on systemic chemotherapy, and 10) addition of treatment for pediatric patients with thyroid cancer.

The primary objective of initial treatment for thyroid cancer is minimizing treatment-related side effects and unnecessary interventions while improving patients’ overall and disease-specific survival rates, reducing the risk of disease persistence or recurrence, and conducting accurate staging and recurrence risk analysis. Appropriate surgical treatment is the most important requirement for this purpose, and additional treatments including radioactive iodine therapy and thyroid-stimulating hormone suppression therapy are performed depending on the patients’ staging and recurrence risk. Diagnostic surgery may be considered when repeated pathologic tests yield nondiagnostic results (Bethesda category 1) or atypia of unknown significance (Bethesda category 3), depending on clinical risk factors, nodule size, ultrasound findings, and patient preference. If a follicular neoplasm (Bethesda category 4) is diagnosed pathologically, surgery is the preferred option. For suspicious papillary carcinoma (suspicious for malignancy, Bethesda category 5), surgery is considered similar to a diagnosis of malignancy (Bethesda category 6). As for the extent of surgery, if the cancer is ≤1 cm in size and clinically free of extrathyroidal extension (ETE) (cT1a), without evidence of cervical lymph node (LN) metastasis (cN0), and without obvious reason to resect the contralateral lobe, a lobectomy can be performed. If the cancer is 1-2 cm in size, clinically free of ETE (cT1b), and without evidence of cervical LN metastasis (cN0), lobectomy is the preferred option. For patients with clinically evident ETE to major organs (cT4) or with cervical LN metastasis (cN1) or distant metastasis (M1), regardless of the cancer size, total thyroidectomy and complete cancer removal should be performed at the time of initial surgery. Active surveillance may be considered for adult patients diagnosed with low-risk thyroid papillary microcarcinoma. Endoscopic and robotic thyroidectomy may be performed for low-risk differentiated thyroid cancer when indicated, based on patient preference.

PURPOSE: Activated leukocyte cell adhesion molecule (ALCAM), a member of the immunoglobulin superfamily, is highly expressed on dendritic cells. ALCAM and its receptor CD6 are co-stimulatory molecules in the immunological synapse; their interaction is required for T cell activation. While atopic dermatitis (AD) is recognized as a T helper 2 (Th2)-mediated allergic disease, the role of ALCAM in its pathogenesis is unclear. METHODS: ALCAM levels were measured in the serum of AD patients and AD-induced murine model by ovalbumin treatment. We next investigated transepidermal water loss, clinical score, Th2-immune responses, skin barrier gene expression and T-cell activation using wild-type (WT) and ALCAM deficiency mice. An oxazolone-induced AD-like model was also established and analyzed using WT- and ALCAM-deficient mice. RESULTS: We found that serum ALCAM levels were elevated in pediatric AD patients as well as WT AD mice, whereas Th2-type cytokine production and AD symptoms were suppressed in ALCAM-deficient mice. In addition, CD4+ effector T-cell counts in murine skin and skin-draining lymph nodes were lower in ALCAM-deficient mice than in their WT counterparts. ALCAM deficiency was also linked to higher expression of skin barrier genes and number of lamellar bodies. CONCLUSIONS: These findings indicate that ALCAM may contribute to AD pathogenesis by meditating a Th2-dominant immune response and disrupting the barrier function of the skin.
Activated-Leukocyte Cell Adhesion Molecule ; Animals ; Dendritic Cells ; Dermatitis, Atopic ; Gene Expression ; Humans ; Immunoglobulins ; Immunological Synapses ; Lymph Nodes ; Mice ; Ovalbumin ; Skin ; T-Lymphocytes ; Water

BACKGROUND: Research into the Baumann skin type (BST) has recently expanded, with growing interest in the development of an efficient and effective skin type classification system for better understanding of this skin condition. OBJECTIVE: We aimed to identify male-specific skin type characteristics with investigation into the distribution of BST by age and region in the Korean male population and to determine the intrinsic and extrinsic factors related to skin type. METHODS: A questionnaire was administered to collect information about age, region, working behavior, drinking behavior, smoking behavior, usual habit of sun protection, medical history, and the BST which consisted of four parameters; oily (O) or dry (D), sensitive (S) or resistant (R), pigmented (P) or non-pigmented (N), and wrinkled (W) or tight (T). RESULTS: We surveyed 1,000 Korean males aged between 20 and 60 years who were divided equally by age and region. Of the total respondents, OSNW type accounted for the largest percentage and ORPW type the lowest. In terms of Baumann parameters, O type was 53.5%, S type was 56.1%, N type was 84.4% and W type was 57.5%. Several behavioral factors were found to have various relationships with the skin type. CONCLUSION: The predominant skin type in the Korean male respondents was OSNW type, and the distribution of skin types with regards to age and region was reported to be distinct. Therefore, skin care should be customized based on detailed skin types considering the various environmental factors.
Classification ; Drinking Behavior ; Humans ; Male ; Skin Care ; Skin ; Smoke ; Smoking ; Solar System ; Surveys and Questionnaires

OBJECTIVE: Neurodegeneration with brain iron accumulation (NBIA) represents a group of inherited movement disorders characterized by iron accumulation in the basal ganglia. Recent advances have included the identification of new causative genes and highlighted the wide phenotypic variation between and within the specific NBIA subtypes. This study aimed to investigate the current status of NBIA in Korea. METHODS: We collected genetically confirmed NBIA patients from twelve nationwide referral hospitals and from a review of the literature. We conducted a study to describe the phenotypic and genotypic characteristics of Korean adults with atypical pantothenate kinase-associated neurodegeneration (PKAN). RESULTS: Four subtypes of NBIA including PKAN (n = 30), PLA2G6-related neurodegeneration (n = 2), beta-propeller protein-associated neurodegeneration (n = 1), and aceruloplasminemia (n = 1) have been identified in the Korean population. The clinical features of fifteen adults with atypical PKAN included early focal limb dystonia, parkinsonism-predominant feature, oromandibular dystonia, and isolated freezing of gait (FOG). Patients with a higher age of onset tended to present with parkinsonism and FOG. The p.R440P and p.D378G mutations are two major mutations that represent approximately 50% of the mutated alleles. Although there were no specific genotype-phenotype correlations, most patients carrying the p.D378G mutation had a late-onset, atypical form of PKAN. CONCLUSIONS: We found considerable phenotypic heterogeneity in Korean adults with atypical PKAN. The age of onset may influence the presentation of extrapyramidal symptoms.
Adult ; Age of Onset ; Alleles ; Basal Ganglia ; Brain ; Dystonia ; Freezing ; Gait ; Gene Frequency ; Genetic Association Studies ; Humans ; Iron ; Korea ; Movement Disorders ; Neurodegenerative Diseases ; Pantothenate Kinase-Associated Neurodegeneration* ; Parkinsonian Disorders ; Phenotype ; Population Characteristics* ; Referral and Consultation ; Weather

A 77-year-old woman was admitted with 5 days history of melena. She had an open cholecystectomy 30 years ago. Abdominal computed tomography and duodenoscopy revealed massive hemobilia. Angiography showed right hepatic arterial fistula to common bile duct near the surgical clip. Embolization was done successfully and the patient recovered. We experienced a case of a massive hemobilia which was occurred after a long period of time since open cholecystectomy without pseudoaneurysmal change of the right hepatic artery. And we suggest the direct vessel injury and fistula between the bile duct and a blood vessel as a possible cause of hemobilia in this case.
Aged ; Aneurysm, False ; Angiography ; Bile Ducts ; Blood Vessels ; Cholecystectomy* ; Common Bile Duct ; Duodenoscopy ; Female ; Fistula ; Hemobilia* ; Hepatic Artery ; Humans ; Melena ; Surgical Instruments

PURPOSE: Topical calcineurin inhibitor is recently developed topical immunomodulator, and preliminary studies showed its effectiveness in the treatment of atopic dermatitis (AD). However, some side effects including transient irritation can influence the patient compliance. So, there are some needs to improve the patient compliance. The purpose of this study was to evaluate the efficacy, safety and patient compliance with using topical tacrolimus 0.1% to treat AD when the correct information about topical tacrolimus are properly given to patients. METHODS: We examined the medical recordings, clinical severity scoring of total 194 AD patients at 9 general hospitals in Seoul, Korea from September 2010 to August 2011. We offered an infosheet of topical tacrolimus 0.1% and the patients applied it twice a day for 2 weeks. And we measured the efficacy of the topical tacrolimus 0.1% with SCORing atopic dermatitis (SCORAD) index, patient's global assessment (PGA), and investigator's global assessment (IGA). RESULTS: Topical tacrolimus 0.1% effectively controlled AD with a reduction of the SCORAD index from baseline 31.9 to 20.2 at 2 weeks of application. In IGA results showed 98% got improvement and in PGA, results showed 96% got improvement after treatment. Although 42.3% of the patients complained of adverse effects, these were all transient. The effect of information on topical tacrolimus 0.1% showed 34% patients could predict the side effect, 35% patients could feel safety to use, and 18% patients experienced side effect but could maintain topical calcineurin inhibitor. CONCLUSION: Topical tacrolimus 0.1% may be an effective treatment modality for AD when patients show good compliance for applying the ointment. And properly given, the correct information may increase the patient compliance.
Calcineurin ; Compliance ; Dermatitis, Atopic ; Hospitals, General ; Humans ; Immunoglobulin A ; Korea ; Medical Records ; Patient Compliance ; Prostaglandins A ; Tacrolimus

OBJECTIVES: To assess the ability of risk of malignancy index (RMI) 1 to discriminate between benign and malignant pelvic masses. METHODS: Between January 2007 and December 2010, 547 women with pelvic masses were evaluated. Their medical records are reviewed here retrospectively. The sensitivity, specificity and positive and negative predictive values of the cancer antigen (CA) 125 level, ultrasound findings and menopausal status in the prediction of malignant pelvic masses were calculated and compared individually or combined using the RMI 1. RESULTS: The receiver operating characteristic (ROC) curves of CA 125, the ultrasound score and the RMI 1 were all found to be relevant predictors of malignancy. ROC analysis of the RMI 1, CA 125 serum levels, ultrasound score and menopausal status showed areas under the curves of 0.795, 0.782, 0.784 and 0.594, respectively. The RMI 1 was found to be statistically significantly correlated with menopausal status (P = 0.001), while not statistically significantly correlated with CA 125 (P = 0.628) or the ultrasound score (P = 0.541). The RMI 1 at a cut-off of 150 - with a sensitivity of 77.9%, specificity of 81.1%, positive predictive value of 51.7% and negative predictive value of 93.4% - showed the highest performance in determining the malignant tendency of pelvic masses. CONCLUSION: Accepting a RMI 1 cut-off value of 150 results in statistically more significant diagnostic criteria than menopausal status for the discrimination of benign and malignant pelvic masses.
Discrimination (Psychology) ; Female ; Humans ; Medical Records ; Retrospective Studies ; ROC Curve ; Sensitivity and Specificity

OBJECTIVES: The purpose of this study was to review an implementation of u-Severance information system with focus on electronic hospital records (EHR) and to suggest future improvements. METHODS: Clinical Data Repository (CDR) of u-Severance involved implementing electronic medical records (EMR) as the basis of EHR and the management of individual health records. EHR were implemented with service enhancements extending to the clinical decision support system (CDSS) and expanding the knowledge base for research with a repository for clinical data and medical care information. RESULTS: The EMR system of Yonsei University Health Systems (YUHS) consists of HP integrity superdome servers using MS SQL as a database management system and MS Windows as its operating system. CONCLUSIONS: YUHS is a high-performing medical institution with regards to efficient management and customer satisfaction; however, after 5 years of implementation of u-Severance system, several limitations with regards to expandability and security have been identified.
Database Management Systems ; Electronic Health Records ; Electronics ; Electrons ; Hospital Records ; Information Systems ; Knowledge Bases

OBJECTIVE: To know impacts of BMI on clinical results of total laparoscopic hysterectomy (TLH). METHODS: We reviewed medical records of patients with myoma uteri who undergone TLH between March 2003 and February 2007, retrospectively. We classified group 1 when BMI was <23 kg/m2, group 2 when BMI was between 23 and 28, and group 3 when BMI was > or =28. We reviewed age, parity, body weight and height, operation time, amount of blood loss, change of hemoglobin change and days of hospital stay, and analyze these. RESULTS: There were 83 patients (Group 1; 30, Group 2; 40, Group 3; 13). The body weight distributions of Group 1, 2, and 3 were 52.2, 60.9, and 72.0 kg and there were significant differences. But there was no difference of height distributions. The age distributions were 44.3, 47.0, 43.8 year old, and there were differences. But there was no difference of parity distribution. The weight distribution of removed uterus were 250.5, 257.4, 242.7 gm and there was no difference. The operation time distributions were 155.0, 168.2, 160.8 minutes, and there was no difference. The amount distributions of bleeding were 342.7, 356.5, 396.2 ml, and there was no difference. The change distributions of hemoglobin were 2.1, 1.8, 2.2 g/dL, and there was no difference. The day distributions of hospital stay were 5.2, 5.5, 4.8, and there was no difference. CONCLUSION: We could not find any trend between operation time, amount of bleeding, change of hemoglobin, and days of postoperative hospital stay after TLH with BMI.
Age Distribution ; Body Mass Index ; Body Weight ; Female ; Hemoglobins ; Hemorrhage ; Humans ; Hysterectomy ; Laparoscopy ; Length of Stay ; Medical Records ; Myoma ; Parity ; Retrospective Studies ; Uterus