1.Pyogenic Granuloma Arising from a Port-Wine Stain on the Scalp: A Case Report and Literature Review
Kunyong SUNG ; Chanho JEONG ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):9-12
Pyogenic granulomas (PGs), also known as lobular capillary hemangiomas, are common reactive lesions that are non-neoplastic in nature. While they typically present as isolated lesions, they can rarely develop from preexisting port-wine stains (PWSs). PWS-associated PGs may occur spontaneously but are often linked to pregnancy or prior treatments such as laser therapy, intense pulsed light therapy, or radiotherapy. Here, we report a rare case of a PG arising from a PWS on the parietal scalp of a 27-year-old man with no history of trauma or prior treatment for his PWS. Given the potential for secondary lesion development in PWS, regular monitoring is essential, particularly in patients with associated risk factors.
2.Surgical Deroofing of Auricular Pseudocysts: Two Case Reports
Kunyong SUNG ; Heejeong PARK ; Seung Ho LEE ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):5-8
An auricular pseudocyst is an uncommon, benign cystic lesion that frequently occurs in the auricles of middle-aged male patients, characterized histologically by an intracartilaginous, non-epithelial-lined cystic space. This report presents two cases of auricular pseudocysts successfully treated using deroofing procedures, with excellent long-term outcomes observed at 6-month and 5-year follow-up, respectively. Although various treatment modalities may be employed for these lesions, surgical deroofing is considered a conventional and reliable option that provides low recurrence rates and superior aesthetic outcomes.
3.Pyogenic Granuloma Arising from a Port-Wine Stain on the Scalp: A Case Report and Literature Review
Kunyong SUNG ; Chanho JEONG ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):9-12
Pyogenic granulomas (PGs), also known as lobular capillary hemangiomas, are common reactive lesions that are non-neoplastic in nature. While they typically present as isolated lesions, they can rarely develop from preexisting port-wine stains (PWSs). PWS-associated PGs may occur spontaneously but are often linked to pregnancy or prior treatments such as laser therapy, intense pulsed light therapy, or radiotherapy. Here, we report a rare case of a PG arising from a PWS on the parietal scalp of a 27-year-old man with no history of trauma or prior treatment for his PWS. Given the potential for secondary lesion development in PWS, regular monitoring is essential, particularly in patients with associated risk factors.
4.Surgical Deroofing of Auricular Pseudocysts: Two Case Reports
Kunyong SUNG ; Heejeong PARK ; Seung Ho LEE ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):5-8
An auricular pseudocyst is an uncommon, benign cystic lesion that frequently occurs in the auricles of middle-aged male patients, characterized histologically by an intracartilaginous, non-epithelial-lined cystic space. This report presents two cases of auricular pseudocysts successfully treated using deroofing procedures, with excellent long-term outcomes observed at 6-month and 5-year follow-up, respectively. Although various treatment modalities may be employed for these lesions, surgical deroofing is considered a conventional and reliable option that provides low recurrence rates and superior aesthetic outcomes.
5.Pyogenic Granuloma Arising from a Port-Wine Stain on the Scalp: A Case Report and Literature Review
Kunyong SUNG ; Chanho JEONG ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):9-12
Pyogenic granulomas (PGs), also known as lobular capillary hemangiomas, are common reactive lesions that are non-neoplastic in nature. While they typically present as isolated lesions, they can rarely develop from preexisting port-wine stains (PWSs). PWS-associated PGs may occur spontaneously but are often linked to pregnancy or prior treatments such as laser therapy, intense pulsed light therapy, or radiotherapy. Here, we report a rare case of a PG arising from a PWS on the parietal scalp of a 27-year-old man with no history of trauma or prior treatment for his PWS. Given the potential for secondary lesion development in PWS, regular monitoring is essential, particularly in patients with associated risk factors.
6.Surgical Deroofing of Auricular Pseudocysts: Two Case Reports
Kunyong SUNG ; Heejeong PARK ; Seung Ho LEE ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):5-8
An auricular pseudocyst is an uncommon, benign cystic lesion that frequently occurs in the auricles of middle-aged male patients, characterized histologically by an intracartilaginous, non-epithelial-lined cystic space. This report presents two cases of auricular pseudocysts successfully treated using deroofing procedures, with excellent long-term outcomes observed at 6-month and 5-year follow-up, respectively. Although various treatment modalities may be employed for these lesions, surgical deroofing is considered a conventional and reliable option that provides low recurrence rates and superior aesthetic outcomes.
7.Pyogenic Granuloma Arising from a Port-Wine Stain on the Scalp: A Case Report and Literature Review
Kunyong SUNG ; Chanho JEONG ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):9-12
Pyogenic granulomas (PGs), also known as lobular capillary hemangiomas, are common reactive lesions that are non-neoplastic in nature. While they typically present as isolated lesions, they can rarely develop from preexisting port-wine stains (PWSs). PWS-associated PGs may occur spontaneously but are often linked to pregnancy or prior treatments such as laser therapy, intense pulsed light therapy, or radiotherapy. Here, we report a rare case of a PG arising from a PWS on the parietal scalp of a 27-year-old man with no history of trauma or prior treatment for his PWS. Given the potential for secondary lesion development in PWS, regular monitoring is essential, particularly in patients with associated risk factors.
8.Surgical Deroofing of Auricular Pseudocysts: Two Case Reports
Kunyong SUNG ; Heejeong PARK ; Seung Ho LEE ; Sang-Yeul LEE
Korean Journal of Head and Neck Oncology 2025;41(1):5-8
An auricular pseudocyst is an uncommon, benign cystic lesion that frequently occurs in the auricles of middle-aged male patients, characterized histologically by an intracartilaginous, non-epithelial-lined cystic space. This report presents two cases of auricular pseudocysts successfully treated using deroofing procedures, with excellent long-term outcomes observed at 6-month and 5-year follow-up, respectively. Although various treatment modalities may be employed for these lesions, surgical deroofing is considered a conventional and reliable option that provides low recurrence rates and superior aesthetic outcomes.
9.Connective tissue disease is associated with the risk of posterior reversible encephalopathy syndrome following lung transplantation in Korea
Tae Jung KIM ; Hyun Joo LEE ; Samina PARK ; Sang-Bae KO ; Soo-Hyun PARK ; Seung Hwan YOON ; Kwon Joong NA ; In Kyu PARK ; Chang Hyun KANG ; Young Tae KIM ; Sun Mi CHOI ; Jimyung PARK ; Joong-Yub KIM ; Hong Yeul LEE
Acute and Critical Care 2025;40(1):79-86
Background:
Posterior reversible encephalopathy syndrome (PRES) is a rare complication of lung transplantation with poorly understood risk factors and clinical characteristics. This study aimed to examine the occurrence, risk factors, and clinical data of patients who developed PRES following lung transplantation.
Methods:
A retrospective analysis was conducted on 147 patients who underwent lung transplantation between February 2013 and December 2023. The patients were diagnosed with PRES based on the clinical symptoms and radiological findings. We compared the baseline characteristics and clinical information, including primary lung diseases and immunosuppressive therapy related to lung transplantation operations, between the PRES and non-PRES groups.
Results:
PRES manifested in 7.5% (n=11) of the patients who underwent lung transplantation, with a median onset of 15 days after operation. Seizures were identified as the predominant clinical manifestation (81.8%, n=9) in the group diagnosed with PRES. All patients diagnosed with PRES recovered fully. Patients with PRES were significantly associated with connective tissue disease-associated interstitial lung disease (45.5% vs. 18.4%, P=0.019, odds ratio=9.808; 95% CI, 1.064–90.386; P=0.044). Nonetheless, no significant variance was observed in the type of immunotherapy, such as the use of calcineurin inhibitors, blood pressure, or acute renal failure subsequent to lung transplantation.
Conclusions
PRES typically manifests shortly after lung transplantation, with seizures being the predominant initial symptom. The presence of preexisting connective tissue disease as the primary lung disease represents a significant risk factor for PRES following lung transplantation.
10.The impact of enteral feeding intolerance on the prognosis of patients with septic shock in South Korea
Hyun-Jun PARK ; Yoon Hae AHN ; Hong Yeul LEE ; Sang-Min LEE ; Jinwoo LEE
Acute and Critical Care 2025;40(2):304-312
Background:
While enteral feeding intolerance (EFI) is associated with worse clinical outcomes in critically ill patients, the relationship between the number of days of EFI and mortality outcomes remains unclear.
Methods:
We retrospectively analyzed adult patients admitted to the medical intensive care unit (ICU) with septic shock at a tertiary referral center. EFI was defined as the presence of vomiting, abdominal distension, pain, diarrhea, or radiographic evidence of ileus. EFI status was assessed daily, and we evaluated the prognostic impact of total number of EFI days during the first 3 days of enteral feeding on clinical outcomes.
Results:
A total of 94 patients were included in the analysis, with 77 (81.9%) experiencing EFI. During the first 3 days of enteral feeding, 25 patients (26.6%) experienced EFI for 1 day, 22 patients (23.4%) experienced EFI for 2 days, and 30 patients (31.9%) experienced EFI for all 3 days. The total number of EFI days was identified as an independent risk factor of 90-day mortality (adjusted hazard ratio, 1.400; 95% CI 1.021–1.919). Higher total EFI days was significantly associated with increased ICU mortality (P for trend=0.036), in-hospital mortality (P for trend=0.007), 30-day mortality (P for trend=0.004), and 90-day mortality (P for trend=0.006).
Conclusions
An increase in the total number of EFI days was significantly associated with mortality outcomes in patients with septic shock, suggesting that EFI may serve as a useful indicator for predicting outcomes in this population.

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