1.Splenic Sclerosing Angiomatoid Nodular Transformation in an 8-Year-Old Child
Ji Yeong KIM ; Hee Jung LEE ; Eun Young JUNG ; Hye Won LEE ; Ye Jee SHIM
Journal of the Korean Society of Radiology 2025;86(1):191-198
Sclerosing angiomatoid nodular transformation (SANT) of the spleen is extremely rare in pediatric patients. Here, we report the case of an 8-year-old boy with iron-deficiency anemia and a solitary splenic mass detected using US, CT, and MRI. The patient underwent partial splenectomy, and the final diagnosis was SANT. Herein, we discuss the radiological features of splenic SANT through a review of reported cases and the differential diagnosis of other primary splenic tumors.
2.A case of SDRIFE (symmetric drug-related intertriginous and flexural exanthema) associated with denosumab
Ji-Su SHIM ; Kyung-Min AHN ; Min-Hye KIM ; Young-Joo CHO
Allergy, Asthma & Respiratory Disease 2025;13(1):39-43
Symmetric drug-related intertriginous and flexural exanthema (SDRIFE) is a rare drug-induced skin reaction characterized by distinctive rashes. It presents as sharply demarcated erythema in “V” shape on the flexural areas such as the buttocks and the groin. Additionally, it can affect other flexural regions such as the axillae, popliteal fossae, and antecubital fossae. SDRIFE typically occurs within a few days following systemic drug exposure, without prior cutaneous sensitization. It is generally associated with a favorable prognosis with no systemic involvement. Consequently, treatment usually involves discontinuation of the offending drug and symptomatic management with antihistamines, with systemic corticosteroids rarely necessary. Herein, we report a case of severe SDRIFE that developed six weeks after denosumab administration and required long-term systemic corticosteroids.
3.A case of SDRIFE (symmetric drug-related intertriginous and flexural exanthema) associated with denosumab
Ji-Su SHIM ; Kyung-Min AHN ; Min-Hye KIM ; Young-Joo CHO
Allergy, Asthma & Respiratory Disease 2025;13(1):39-43
Symmetric drug-related intertriginous and flexural exanthema (SDRIFE) is a rare drug-induced skin reaction characterized by distinctive rashes. It presents as sharply demarcated erythema in “V” shape on the flexural areas such as the buttocks and the groin. Additionally, it can affect other flexural regions such as the axillae, popliteal fossae, and antecubital fossae. SDRIFE typically occurs within a few days following systemic drug exposure, without prior cutaneous sensitization. It is generally associated with a favorable prognosis with no systemic involvement. Consequently, treatment usually involves discontinuation of the offending drug and symptomatic management with antihistamines, with systemic corticosteroids rarely necessary. Herein, we report a case of severe SDRIFE that developed six weeks after denosumab administration and required long-term systemic corticosteroids.
4.A case of SDRIFE (symmetric drug-related intertriginous and flexural exanthema) associated with denosumab
Ji-Su SHIM ; Kyung-Min AHN ; Min-Hye KIM ; Young-Joo CHO
Allergy, Asthma & Respiratory Disease 2025;13(1):39-43
Symmetric drug-related intertriginous and flexural exanthema (SDRIFE) is a rare drug-induced skin reaction characterized by distinctive rashes. It presents as sharply demarcated erythema in “V” shape on the flexural areas such as the buttocks and the groin. Additionally, it can affect other flexural regions such as the axillae, popliteal fossae, and antecubital fossae. SDRIFE typically occurs within a few days following systemic drug exposure, without prior cutaneous sensitization. It is generally associated with a favorable prognosis with no systemic involvement. Consequently, treatment usually involves discontinuation of the offending drug and symptomatic management with antihistamines, with systemic corticosteroids rarely necessary. Herein, we report a case of severe SDRIFE that developed six weeks after denosumab administration and required long-term systemic corticosteroids.
5.A case of SDRIFE (symmetric drug-related intertriginous and flexural exanthema) associated with denosumab
Ji-Su SHIM ; Kyung-Min AHN ; Min-Hye KIM ; Young-Joo CHO
Allergy, Asthma & Respiratory Disease 2025;13(1):39-43
Symmetric drug-related intertriginous and flexural exanthema (SDRIFE) is a rare drug-induced skin reaction characterized by distinctive rashes. It presents as sharply demarcated erythema in “V” shape on the flexural areas such as the buttocks and the groin. Additionally, it can affect other flexural regions such as the axillae, popliteal fossae, and antecubital fossae. SDRIFE typically occurs within a few days following systemic drug exposure, without prior cutaneous sensitization. It is generally associated with a favorable prognosis with no systemic involvement. Consequently, treatment usually involves discontinuation of the offending drug and symptomatic management with antihistamines, with systemic corticosteroids rarely necessary. Herein, we report a case of severe SDRIFE that developed six weeks after denosumab administration and required long-term systemic corticosteroids.
6.A case of SDRIFE (symmetric drug-related intertriginous and flexural exanthema) associated with denosumab
Ji-Su SHIM ; Kyung-Min AHN ; Min-Hye KIM ; Young-Joo CHO
Allergy, Asthma & Respiratory Disease 2025;13(1):39-43
Symmetric drug-related intertriginous and flexural exanthema (SDRIFE) is a rare drug-induced skin reaction characterized by distinctive rashes. It presents as sharply demarcated erythema in “V” shape on the flexural areas such as the buttocks and the groin. Additionally, it can affect other flexural regions such as the axillae, popliteal fossae, and antecubital fossae. SDRIFE typically occurs within a few days following systemic drug exposure, without prior cutaneous sensitization. It is generally associated with a favorable prognosis with no systemic involvement. Consequently, treatment usually involves discontinuation of the offending drug and symptomatic management with antihistamines, with systemic corticosteroids rarely necessary. Herein, we report a case of severe SDRIFE that developed six weeks after denosumab administration and required long-term systemic corticosteroids.
7.Splenic Sclerosing Angiomatoid Nodular Transformation in an 8-Year-Old Child
Ji Yeong KIM ; Hee Jung LEE ; Eun Young JUNG ; Hye Won LEE ; Ye Jee SHIM
Journal of the Korean Society of Radiology 2025;86(1):191-198
Sclerosing angiomatoid nodular transformation (SANT) of the spleen is extremely rare in pediatric patients. Here, we report the case of an 8-year-old boy with iron-deficiency anemia and a solitary splenic mass detected using US, CT, and MRI. The patient underwent partial splenectomy, and the final diagnosis was SANT. Herein, we discuss the radiological features of splenic SANT through a review of reported cases and the differential diagnosis of other primary splenic tumors.
8.Splenic Sclerosing Angiomatoid Nodular Transformation in an 8-Year-Old Child
Ji Yeong KIM ; Hee Jung LEE ; Eun Young JUNG ; Hye Won LEE ; Ye Jee SHIM
Journal of the Korean Society of Radiology 2025;86(1):191-198
Sclerosing angiomatoid nodular transformation (SANT) of the spleen is extremely rare in pediatric patients. Here, we report the case of an 8-year-old boy with iron-deficiency anemia and a solitary splenic mass detected using US, CT, and MRI. The patient underwent partial splenectomy, and the final diagnosis was SANT. Herein, we discuss the radiological features of splenic SANT through a review of reported cases and the differential diagnosis of other primary splenic tumors.
9.Clinical Utility of Monitoring Circulating Tumor DNA Using a Targeted Next-generation Sequencing Panel in Patients with Colorectal Cancer
Hyoeun SHIM ; Soobeen HEO ; Jiyu SUN ; Moon Ki CHOI ; Sung Chan PARK ; Chang Won HONG ; Seong Hoon KIM ; Seog-Yun PARK ; Sun-Young KONG ; Ji Yeon BAEK
Annals of Laboratory Medicine 2025;45(4):450-458
Background:
Circulating tumor DNA (ctDNA) profiling from peripheral blood allows relatively noninvasive monitoring of solid tumors; however, its utility post-surgery or chemotherapy in colorectal cancer remains underexplored. We evaluated the clinical implications of a ctDNA next-generation sequencing (NGS) panel post-surgery or chemotherapy in patients with colorectal cancer.
Methods:
We collected samples from 23 patients with colorectal cancer (17 men, median age 65 yrs) at baseline and post-surgery or chemotherapy at the National Cancer Center, Korea, between January 2021 and September 2023. ctDNA was analyzed using an NGS panel including 46 genes, and variant allele frequencies (VAFs) were determined. Followup samples were analyzed using the NGS panel or droplet digital PCR (ddPCR) when probes were available. Clinical status was compared with ctDNA results, and survival was analyzed using a time-dependent Cox model.
Results:
Mutations were identified in 13 out of 14 patients (92.8%) with stage II/III cancer and in all nine patients (100%) with stage IV cancer. Mutations were detected in KRAS (N = 15, 65%), APC (N = 8, 35%), TP53 (N = 7, 30%), PIK3CA (N = 5, 22%), and RET (N = 4, 17%). A 1% increase in KRAS and TP53 VAFs was associated with 48% and 32% increased mortality risk, respectively. Changes in VAF correlated well with clinical findings.
Conclusions
The detection of and an increase in KRAS and TP53 VAFs were associated with poor prognosis. ddPCR-based ctDNA monitoring results were comparable to those obtained with the NGS panel. ctDNA monitoring during treatment is clinically informative in managing colorectal cancer.
10.Effects of Three Kinds of Kombucha on the Surface of Composite Resin for Dental Restoration
Ye-Won SONG ; Sun-Young PARK ; Ye-Eun KIM ; Hye-Won LEE ; Jung-Yeon JAE ; Hyeon-Ji SHIM ; Hee-Jung LIM ; Im-Hee JUNG ; Do-Seon LIM
Journal of Dental Hygiene Science 2024;24(4):289-298
Background:
This study aimed to evaluate the effects of kombucha on the surface of composite resins and to examine thedegradation-inhibiting effect of adding calcium to kombucha.
Methods:
Six experimental groups were established, with three types of liquid kombucha: one with 3% added calcium,carbonated water as a positive control, and mineral water as a negative control. The pH and titratable acidity values of the experimental groups were measured. The samples were filled with condensed composite resin and placed in the experimental drinks for 5, 15, 30, and 60 minutes. The Vickers microhardness of the surface was measured before and after immersion, and the changes were compared.
Results:
The pH values of the experimental group were I’m alive (2.87±0.02), Hollys (2.95±0.01), Ediya (2.99±0.01), I’m alive +3% Ca (4.09±0.01), carbonated water (4.66±0.01), and mineral water (7.67±0.02). I’m alive (–12.35) showed the largest reduction in surface hardness, followed by Hollys (–9.78), carbonated water (–7.97), I’m alive +3% Ca (–7.82), Ediya (–7.60), and mineral water (–1.56). In the Vickers microhardness measurements, all experimental groups, except for the mineral water group, showed significant differences (p<0.05). The scanning electron microscope results showed that the experimental group and positive control had rough surfaces and micropores.
Conclusion
The surface hardness was significantly reduced in all experimental groups except for water. In particular, in the caseof kombucha with low pH, the reduction rate increased, weakening the physical properties of the material. In addition, the reduction rate of surface hardness was lower in kombucha with added calcium, and it is believed that drinking kombucha containing calcium can minimize the erosion of dental materials.

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