Background/Objectives: Pediatric parotid malignancies are rare but represent a critical subset of head and neck cancers. This study integrates nationwide incidence trends in Korea with detailed surgical outcomes from a single tertiary institution to better understand the characteristics and management of these tumors.Materials & Methods: Nationwide data from the Korea Central Cancer Registry (1999-2019) were analyzed to assess trends in pediatric parotid malignancy incidence. A retrospective review was conducted on 31 pediatric parotidectomy cases at a tertiary hospital from 2011 to 2024. Clinical data, surgical methods, pathology results, and follow-up outcomes were examined. Results: Nationwide analysis revealed an annual mean of 9.0 ± 4.0 cases of pediatric parotid malignancies, with a significant rise in incidence among patients aged 10-19 years (APC 5.4%, 95% CI 1.1-9.8, p=0.016). Institutional data showed that the median age of patients underwent parotidectomy was 15.0 years, with males comprising 67.7%. Among 31 cases, 19 (61.3%) were benign, primarily pleomorphic adenomas (68.4%), and 12 (38.7%) were malignant, predominantly mucoepidermoid carcinoma (87.5%). Superficial or partial parotidectomy was the most common surgical approach (71.0%), and no unexpected complications or recurrences were observed. Conclusion Pediatric parotid malignancies in Korea exhibit rising incidence rates, particularly among teenagers. Surgical outcomes confirm the predominance of pleomorphic adenomas and mucoepidermoid carcinomas. Pediatric parotid surgery is a procedure with minimized complications and a promising prognosis. Tailored treatment strategies adapted to the unique characteristics of pediatric patients are essential to optimize outcomes.

Background: While Korea maintains a low prevalence of human immunodeficiency virus (HIV), the number of newly diagnosed cases has been steadily rising, reaching approximately 1,000 annually in recent years. The 2022 annual report from the Korea Disease Control and Prevention Agency revealed that women living with HIV (WLWH) constitute 6.4% of the total confirmed people living with the HIV population, totaling 1,219 individuals. Despite this, only a few studies have focused on WLWH in Korea. This study aims to analyze the epidemiological and clinical characteristics of WLWH in Korea. Materials and Methods: We retrospectively collected data by reviewing the medical records of all WLWH who visited 10 urban referral hospitals across Korea between January 2005 and May 2023. Results: A total of 443 WLWH were enrolled in this study. The predominant risk exposure was heterosexual contact, with 235 (53%) participants either married or cohabiting with a male partner at their initial clinic visit. Among the participants, 334 (77.7%) were Korean, 27 (6.1%) were Southeast Asian, and 19 (4.3%) were African. Antiretroviral therapy was initiated by 404 WLWH (91.2%). We observed 118 pregnancies in WLWH following their HIV diagnosis, resulting in 78 live births (66.1%), 18 induced abortions (15.2%), 10 pre-viable fetal losses (8.5%), and four stillbirths (3.4%). Over a cumulative follow-up duration of 3,202.1 years, the incidence rates of breast and cervical cancers were both 2.18 per 1,000 person-years. Additionally, the incidence rates of pelvic inflammatory disease, cervical intraepithelial neoplasm (above grade II), and osteoporosis were 4.67, 11.21, and 13.39 per 1,000 patient-years, respectively. Conclusion This is the first multicenter study to investigate the clinical and epidemiological characteristics of WLWH in Korea. The incidence and prevalence of diseases in women, including breast cancer, cervical cancer, and chronic comorbidities, are high in WLWH in Korea; therefore, further research and efforts are needed to manage these diseases.

Background/Objectives: Pediatric parotid malignancies are rare but represent a critical subset of head and neck cancers. This study integrates nationwide incidence trends in Korea with detailed surgical outcomes from a single tertiary institution to better understand the characteristics and management of these tumors.Materials & Methods: Nationwide data from the Korea Central Cancer Registry (1999-2019) were analyzed to assess trends in pediatric parotid malignancy incidence. A retrospective review was conducted on 31 pediatric parotidectomy cases at a tertiary hospital from 2011 to 2024. Clinical data, surgical methods, pathology results, and follow-up outcomes were examined. Results: Nationwide analysis revealed an annual mean of 9.0 ± 4.0 cases of pediatric parotid malignancies, with a significant rise in incidence among patients aged 10-19 years (APC 5.4%, 95% CI 1.1-9.8, p=0.016). Institutional data showed that the median age of patients underwent parotidectomy was 15.0 years, with males comprising 67.7%. Among 31 cases, 19 (61.3%) were benign, primarily pleomorphic adenomas (68.4%), and 12 (38.7%) were malignant, predominantly mucoepidermoid carcinoma (87.5%). Superficial or partial parotidectomy was the most common surgical approach (71.0%), and no unexpected complications or recurrences were observed. Conclusion Pediatric parotid malignancies in Korea exhibit rising incidence rates, particularly among teenagers. Surgical outcomes confirm the predominance of pleomorphic adenomas and mucoepidermoid carcinomas. Pediatric parotid surgery is a procedure with minimized complications and a promising prognosis. Tailored treatment strategies adapted to the unique characteristics of pediatric patients are essential to optimize outcomes.

Background: While Korea maintains a low prevalence of human immunodeficiency virus (HIV), the number of newly diagnosed cases has been steadily rising, reaching approximately 1,000 annually in recent years. The 2022 annual report from the Korea Disease Control and Prevention Agency revealed that women living with HIV (WLWH) constitute 6.4% of the total confirmed people living with the HIV population, totaling 1,219 individuals. Despite this, only a few studies have focused on WLWH in Korea. This study aims to analyze the epidemiological and clinical characteristics of WLWH in Korea. Materials and Methods: We retrospectively collected data by reviewing the medical records of all WLWH who visited 10 urban referral hospitals across Korea between January 2005 and May 2023. Results: A total of 443 WLWH were enrolled in this study. The predominant risk exposure was heterosexual contact, with 235 (53%) participants either married or cohabiting with a male partner at their initial clinic visit. Among the participants, 334 (77.7%) were Korean, 27 (6.1%) were Southeast Asian, and 19 (4.3%) were African. Antiretroviral therapy was initiated by 404 WLWH (91.2%). We observed 118 pregnancies in WLWH following their HIV diagnosis, resulting in 78 live births (66.1%), 18 induced abortions (15.2%), 10 pre-viable fetal losses (8.5%), and four stillbirths (3.4%). Over a cumulative follow-up duration of 3,202.1 years, the incidence rates of breast and cervical cancers were both 2.18 per 1,000 person-years. Additionally, the incidence rates of pelvic inflammatory disease, cervical intraepithelial neoplasm (above grade II), and osteoporosis were 4.67, 11.21, and 13.39 per 1,000 patient-years, respectively. Conclusion This is the first multicenter study to investigate the clinical and epidemiological characteristics of WLWH in Korea. The incidence and prevalence of diseases in women, including breast cancer, cervical cancer, and chronic comorbidities, are high in WLWH in Korea; therefore, further research and efforts are needed to manage these diseases.

Background/Objectives: Pediatric parotid malignancies are rare but represent a critical subset of head and neck cancers. This study integrates nationwide incidence trends in Korea with detailed surgical outcomes from a single tertiary institution to better understand the characteristics and management of these tumors.Materials & Methods: Nationwide data from the Korea Central Cancer Registry (1999-2019) were analyzed to assess trends in pediatric parotid malignancy incidence. A retrospective review was conducted on 31 pediatric parotidectomy cases at a tertiary hospital from 2011 to 2024. Clinical data, surgical methods, pathology results, and follow-up outcomes were examined. Results: Nationwide analysis revealed an annual mean of 9.0 ± 4.0 cases of pediatric parotid malignancies, with a significant rise in incidence among patients aged 10-19 years (APC 5.4%, 95% CI 1.1-9.8, p=0.016). Institutional data showed that the median age of patients underwent parotidectomy was 15.0 years, with males comprising 67.7%. Among 31 cases, 19 (61.3%) were benign, primarily pleomorphic adenomas (68.4%), and 12 (38.7%) were malignant, predominantly mucoepidermoid carcinoma (87.5%). Superficial or partial parotidectomy was the most common surgical approach (71.0%), and no unexpected complications or recurrences were observed. Conclusion Pediatric parotid malignancies in Korea exhibit rising incidence rates, particularly among teenagers. Surgical outcomes confirm the predominance of pleomorphic adenomas and mucoepidermoid carcinomas. Pediatric parotid surgery is a procedure with minimized complications and a promising prognosis. Tailored treatment strategies adapted to the unique characteristics of pediatric patients are essential to optimize outcomes.

Background: While Korea maintains a low prevalence of human immunodeficiency virus (HIV), the number of newly diagnosed cases has been steadily rising, reaching approximately 1,000 annually in recent years. The 2022 annual report from the Korea Disease Control and Prevention Agency revealed that women living with HIV (WLWH) constitute 6.4% of the total confirmed people living with the HIV population, totaling 1,219 individuals. Despite this, only a few studies have focused on WLWH in Korea. This study aims to analyze the epidemiological and clinical characteristics of WLWH in Korea. Materials and Methods: We retrospectively collected data by reviewing the medical records of all WLWH who visited 10 urban referral hospitals across Korea between January 2005 and May 2023. Results: A total of 443 WLWH were enrolled in this study. The predominant risk exposure was heterosexual contact, with 235 (53%) participants either married or cohabiting with a male partner at their initial clinic visit. Among the participants, 334 (77.7%) were Korean, 27 (6.1%) were Southeast Asian, and 19 (4.3%) were African. Antiretroviral therapy was initiated by 404 WLWH (91.2%). We observed 118 pregnancies in WLWH following their HIV diagnosis, resulting in 78 live births (66.1%), 18 induced abortions (15.2%), 10 pre-viable fetal losses (8.5%), and four stillbirths (3.4%). Over a cumulative follow-up duration of 3,202.1 years, the incidence rates of breast and cervical cancers were both 2.18 per 1,000 person-years. Additionally, the incidence rates of pelvic inflammatory disease, cervical intraepithelial neoplasm (above grade II), and osteoporosis were 4.67, 11.21, and 13.39 per 1,000 patient-years, respectively. Conclusion This is the first multicenter study to investigate the clinical and epidemiological characteristics of WLWH in Korea. The incidence and prevalence of diseases in women, including breast cancer, cervical cancer, and chronic comorbidities, are high in WLWH in Korea; therefore, further research and efforts are needed to manage these diseases.

Background/Objectives: Pediatric parotid malignancies are rare but represent a critical subset of head and neck cancers. This study integrates nationwide incidence trends in Korea with detailed surgical outcomes from a single tertiary institution to better understand the characteristics and management of these tumors.Materials & Methods: Nationwide data from the Korea Central Cancer Registry (1999-2019) were analyzed to assess trends in pediatric parotid malignancy incidence. A retrospective review was conducted on 31 pediatric parotidectomy cases at a tertiary hospital from 2011 to 2024. Clinical data, surgical methods, pathology results, and follow-up outcomes were examined. Results: Nationwide analysis revealed an annual mean of 9.0 ± 4.0 cases of pediatric parotid malignancies, with a significant rise in incidence among patients aged 10-19 years (APC 5.4%, 95% CI 1.1-9.8, p=0.016). Institutional data showed that the median age of patients underwent parotidectomy was 15.0 years, with males comprising 67.7%. Among 31 cases, 19 (61.3%) were benign, primarily pleomorphic adenomas (68.4%), and 12 (38.7%) were malignant, predominantly mucoepidermoid carcinoma (87.5%). Superficial or partial parotidectomy was the most common surgical approach (71.0%), and no unexpected complications or recurrences were observed. Conclusion Pediatric parotid malignancies in Korea exhibit rising incidence rates, particularly among teenagers. Surgical outcomes confirm the predominance of pleomorphic adenomas and mucoepidermoid carcinomas. Pediatric parotid surgery is a procedure with minimized complications and a promising prognosis. Tailored treatment strategies adapted to the unique characteristics of pediatric patients are essential to optimize outcomes.