1.A Case of Mycobacterium chelonae Infection at the Site of Acupuncture.
Byeol HAN ; Min Wha CHOI ; Tae Young HAN ; June Hyunkyung LEE ; Sook Ja SON
Korean Journal of Dermatology 2017;55(10):717-720
No abstract available.
Acupuncture*
;
Mycobacterium chelonae*
;
Mycobacterium*
;
Nontuberculous Mycobacteria
2.A Sporadic Case of Verrucoid Cornifying Darier's Disease.
Byeol HAN ; Tae Young HAN ; June Hyunkyung LEE ; Sook Ja SON
Korean Journal of Dermatology 2016;54(9):755-756
No abstract available.
Darier Disease*
3.A Case of Systemic Sclerosis Manifesting as Digital Finger Ulcers and Leg Ulcers.
Byeol HAN ; Min Wha CHOI ; Sook Ja SON ; June Hyunkyung LEE ; Tae Young HAN
Korean Journal of Dermatology 2018;56(3):218-220
No abstract available.
Fingers*
;
Leg Ulcer*
;
Leg*
;
Scleroderma, Systemic*
;
Ulcer*
4.Versatility of the reverse sural fasciocutaneous flap for the reconstruction of lower leg defects caused by chronic osteomyelitis.
Archives of Plastic Surgery 2018;45(6):601-604
No abstract available.
Leg*
;
Osteomyelitis*
5.Calcium Pyrophosphate Deposit Disease of Cervical Spine Mimicking Ossification of the Yellow Ligament
Dae Ho HA ; Sung Kyun OH ; Byeol HAN
The Journal of the Korean Orthopaedic Association 2022;57(4):345-350
Calcium pyrophosphate deposition disease is deposited mainly in the knee joint or the cartilage of the wrist joint and rarely in the spine, but the transverse ligament invasion of the atlas is most common. A patient with gait disturbance showed spinal cord compression caused by thickening of the yellow ligament of the subaxial cervical spine. This paper reported two cases of calcium pyrophosphate deposition disease associated with Crown dens syndrome on a computed tomography scan of the atlantoaxial joint.
6.Clinical Features and Associated Factors of Macrolide-Unresponsive Mycoplasma pneumonia and Efficacy Comparison Between Doxycycline, Tosufloxacin and Corticostreoid as a Second-Line Treatment
Han Byeol KANG ; Youngmin AHN ; Byung Wook EUN ; Seungman PARK
Pediatric Infection & Vaccine 2024;31(1):37-45
Purpose:
This study aimed to examine the clinical features and determinants of macrolideunresponsive Mycoplasma pneumoniae pneumonia (MUMP) and to assess the differences in the time to fever resolution between doxycycline (DXC), tosufloxacin (TFX) and corticosteroid (CST) as second-line treatment.
Methods:
We retrospectively analyzed the medical records of patients under the age of 18 who were admitted to Nowon Eulji University Hospital between July 2018 and February 2020, diagnosed with mycoplasma pneumonia. Macrolide resistance was confirmed by detecting point mutations in the 23S rRNA gene. MUMP was clinically defined by persistent fever (≥38.0°C) lasting for 72 hours or more after the initiation of macrolide treatment. In cases of MUMP, patients were treated with an addition of CST, or the initial macrolide was replaced either DXC or TFX.
Results:
Out of 157 cases of mycoplasma pneumonia, 83 cases (52.9%) did not respond to macrolides. Patients with MUMP exhibited significantly higher C-reactive protein (CRP) levels (3.2±3.0 vs. 2.4±2.2 mg/dL, P=0.047), more frequent lobar/segmental infiltrations or pleural effusions (56.6% vs. 27.0%, P<0.001; 6.0% vs. 0.0%, P=0.032), and a higher prevalence of 23S rRNA gene mutations (96.4% vs. 64.6%, P<0.001) when compared to those with macrolide-susceptible M. pneumoniae pneumonia. In terms of second-line treatment, 15 patients (18.1%) responded to CST, 30 (36.1%) to DXC, and 38 (45.8%) to TFX. The time to defervescence (TTD) after initiation second-line treatment was significantly shorter in the CST group compared to the DXC (10.3±12.7 vs. 19.4±17.2 hours, P=0.003) and TFX groups (10.3±12.7 vs. 25.0±20.1 hours, P=0.043), with no significant difference observed between the DXC and TFX groups (19.4±17.2 vs. 25.0±20.1 hours, P=0.262).
Conclusions
High CRP levels, the presence of positive 23S rRNA gene mutation, lobar or segmental lung infiltration, and pleural effusion observed in chest X-ray findings were significant factors associated with macrolide unresponsiveness. In this study, CST demonstrated a shorter TTD compared to DXC or TFX. Further, larger-scale prospective studies are needed to determine the optimal second-line treatment for MUMP.
7.Clinical Features and Associated Factors of Macrolide-Unresponsive Mycoplasma pneumonia and Efficacy Comparison Between Doxycycline, Tosufloxacin and Corticostreoid as a Second-Line Treatment
Han Byeol KANG ; Youngmin AHN ; Byung Wook EUN ; Seungman PARK
Pediatric Infection & Vaccine 2024;31(1):37-45
Purpose:
This study aimed to examine the clinical features and determinants of macrolideunresponsive Mycoplasma pneumoniae pneumonia (MUMP) and to assess the differences in the time to fever resolution between doxycycline (DXC), tosufloxacin (TFX) and corticosteroid (CST) as second-line treatment.
Methods:
We retrospectively analyzed the medical records of patients under the age of 18 who were admitted to Nowon Eulji University Hospital between July 2018 and February 2020, diagnosed with mycoplasma pneumonia. Macrolide resistance was confirmed by detecting point mutations in the 23S rRNA gene. MUMP was clinically defined by persistent fever (≥38.0°C) lasting for 72 hours or more after the initiation of macrolide treatment. In cases of MUMP, patients were treated with an addition of CST, or the initial macrolide was replaced either DXC or TFX.
Results:
Out of 157 cases of mycoplasma pneumonia, 83 cases (52.9%) did not respond to macrolides. Patients with MUMP exhibited significantly higher C-reactive protein (CRP) levels (3.2±3.0 vs. 2.4±2.2 mg/dL, P=0.047), more frequent lobar/segmental infiltrations or pleural effusions (56.6% vs. 27.0%, P<0.001; 6.0% vs. 0.0%, P=0.032), and a higher prevalence of 23S rRNA gene mutations (96.4% vs. 64.6%, P<0.001) when compared to those with macrolide-susceptible M. pneumoniae pneumonia. In terms of second-line treatment, 15 patients (18.1%) responded to CST, 30 (36.1%) to DXC, and 38 (45.8%) to TFX. The time to defervescence (TTD) after initiation second-line treatment was significantly shorter in the CST group compared to the DXC (10.3±12.7 vs. 19.4±17.2 hours, P=0.003) and TFX groups (10.3±12.7 vs. 25.0±20.1 hours, P=0.043), with no significant difference observed between the DXC and TFX groups (19.4±17.2 vs. 25.0±20.1 hours, P=0.262).
Conclusions
High CRP levels, the presence of positive 23S rRNA gene mutation, lobar or segmental lung infiltration, and pleural effusion observed in chest X-ray findings were significant factors associated with macrolide unresponsiveness. In this study, CST demonstrated a shorter TTD compared to DXC or TFX. Further, larger-scale prospective studies are needed to determine the optimal second-line treatment for MUMP.
8.Clinical Features and Associated Factors of Macrolide-Unresponsive Mycoplasma pneumonia and Efficacy Comparison Between Doxycycline, Tosufloxacin and Corticostreoid as a Second-Line Treatment
Han Byeol KANG ; Youngmin AHN ; Byung Wook EUN ; Seungman PARK
Pediatric Infection & Vaccine 2024;31(1):37-45
Purpose:
This study aimed to examine the clinical features and determinants of macrolideunresponsive Mycoplasma pneumoniae pneumonia (MUMP) and to assess the differences in the time to fever resolution between doxycycline (DXC), tosufloxacin (TFX) and corticosteroid (CST) as second-line treatment.
Methods:
We retrospectively analyzed the medical records of patients under the age of 18 who were admitted to Nowon Eulji University Hospital between July 2018 and February 2020, diagnosed with mycoplasma pneumonia. Macrolide resistance was confirmed by detecting point mutations in the 23S rRNA gene. MUMP was clinically defined by persistent fever (≥38.0°C) lasting for 72 hours or more after the initiation of macrolide treatment. In cases of MUMP, patients were treated with an addition of CST, or the initial macrolide was replaced either DXC or TFX.
Results:
Out of 157 cases of mycoplasma pneumonia, 83 cases (52.9%) did not respond to macrolides. Patients with MUMP exhibited significantly higher C-reactive protein (CRP) levels (3.2±3.0 vs. 2.4±2.2 mg/dL, P=0.047), more frequent lobar/segmental infiltrations or pleural effusions (56.6% vs. 27.0%, P<0.001; 6.0% vs. 0.0%, P=0.032), and a higher prevalence of 23S rRNA gene mutations (96.4% vs. 64.6%, P<0.001) when compared to those with macrolide-susceptible M. pneumoniae pneumonia. In terms of second-line treatment, 15 patients (18.1%) responded to CST, 30 (36.1%) to DXC, and 38 (45.8%) to TFX. The time to defervescence (TTD) after initiation second-line treatment was significantly shorter in the CST group compared to the DXC (10.3±12.7 vs. 19.4±17.2 hours, P=0.003) and TFX groups (10.3±12.7 vs. 25.0±20.1 hours, P=0.043), with no significant difference observed between the DXC and TFX groups (19.4±17.2 vs. 25.0±20.1 hours, P=0.262).
Conclusions
High CRP levels, the presence of positive 23S rRNA gene mutation, lobar or segmental lung infiltration, and pleural effusion observed in chest X-ray findings were significant factors associated with macrolide unresponsiveness. In this study, CST demonstrated a shorter TTD compared to DXC or TFX. Further, larger-scale prospective studies are needed to determine the optimal second-line treatment for MUMP.
9.A Case of Nodular Colloid Degeneration in a 40-year-old Woman.
Byeol HAN ; Won Mi LEE ; Sook Ja SON ; June Hyunkyung LEE ; Tae Young HAN
Korean Journal of Dermatology 2018;56(6):393-395
Colloid degeneration of the skin is a rare, distinct clinicopathological entity characterized by the deposition of colloid material in the dermis. Nodular colloid degeneration (NCD) is a clinical variant of colloid degeneration of the skin. Herein, we report the case of a 40-year-old woman who presented with a 3-year history of multiple asymptomatic yellowish-brown, indurated papules and plaques on her forehead. Histopathologic examination of the lesion revealed deposition of amorphous pale pink homogenous colloid material with irregular clefts, fissures, and scattered pyknotic nuclei in the upper dermis. The material was negative for Congo red staining, and periodic acid-Schiff and Masson's trichrome staining revealed positive reactivity. Scattered fragmented elastic fibers were present in the colloid material on Verhoeff—Van Gieson staining. The patient was diagnosed with NCD. We propose that NCD should be considered in the differential diagnosis of long-standing facial nodules and plaques.
Adult*
;
Colloids*
;
Congo Red
;
Dermis
;
Diagnosis, Differential
;
Elastic Tissue
;
Female
;
Forehead
;
Humans
;
Skin