3.Prognostic significance of BLK expression in R-CHOP treated diffuse large B-cell lymphoma
Soyeon CHOI ; Yoo Jin LEE ; Yunsuk CHOI ; Misung KIM ; Hyun-Jung KIM ; Ji Eun KIM ; Sukjoong OH ; Seoung Wan CHAE ; Hee Jeong CHA ; Jae-Cheol JO
Journal of Pathology and Translational Medicine 2022;56(5):281-288
Background:
The aim of the present study was to evaluate the prognostic significance of B-cell lymphocyte kinase (BLK) expression for survival outcomes in diffuse large B-cell lymphoma (DLBCL) patients treated with R-CHOP.
Methods:
We retrospectively analyzed the medical records of 89 patients from two tertiary referral hospitals. The expression of BLK, SYK, and CDK1 were evaluated in a semiquantitative method using an H-score, and the proportions of BCL2 and C-MYC were evaluated.
Results:
A total of 89 patients received R-CHOP chemotherapy as a first-line chemotherapy. The expression rates of BLK in tumor cells was 39.2% (n = 34). BLK expression status was not significantly associated with clinical variables; however, BLK expression in tumor cells was significantly associated with the expression of both C-MYC and BCL2 (p = .003). With a median follow-up of 60.4 months, patients with BLK expression had significantly lower 5-year progression-free survival (PFS) and overall survival rates (49.8% and 60.9%, respectively) than patients without BLK expression (77.3% and 86.7%, respectively). In multivariate analysis for PFS, BLK positivity was an independent poor prognostic factor (hazard ratio, 2.208; p = .040).
Conclusions
Here, we describe the clinicopathological features and survival outcome according to expression of BLK in DLBCL. Approximately 39% of DLBCL patients showed BLK positivity, which was associated as a predictive marker for poor prognosis in patients who received R-CHOP chemotherapy.
4.Early postoperative treatment of mastectomy scars using a fractional carbon dioxide laser: a randomized, controlled, split-scar, blinded study
Hyun Woo SHIN ; Sangwoo SUK ; Seoung Wan CHAE ; Kun Chul YOON ; Junekyu KIM
Archives of Plastic Surgery 2021;48(4):347-352
Background:
Mastectomy leaves unsightly scarring, which can be distressing to patients. Laser therapy for scar prevention has been consistently emphasized in recent studies showing that several types of lasers, including fractional ablation lasers, are effective for reducing scar formation. Nonetheless, there are few studies evaluating the therapeutic efficacy of ablative CO2 fractional lasers (ACFLs).
Methods:
This study had a randomized, comparative, prospective, split-scar design with blinded evaluation of mastectomy scars. Fifteen patients with mastectomy scars were treated using an ACFL. Half of each scar was randomized to “A,” while the other side was allocated to group “B.” Laser treatment was conducted randomly. Scars were assessed using digital photographs of the scar and Vancouver scar scale (VSS) scores. Histological assessments were also done.
Results:
The mean VSS scores were 2.20±1.28 for the treatment side and 2.96±1.40 for the control side. There was a significant difference in the VSS score between the treatment side and the control side (P=0.002). The mean visual analog scale (VAS) scores were 4.13±1.36 for the treatment side and 4.67±1.53 for the control side. There was a significant difference in VAS score between the treatment side and the control side (P=0.02).
Conclusions
This study demonstrated that early scar treatment using an ACFL significantly improved the clinical results of the treatment compared to the untreated scar, and this difference was associated with patient satisfaction.
5.Proto-oncogene Pokemon in thyroid cancer: a potential promoter of tumorigenesis in papillary thyroid carcinoma
Kyungseek CHANG ; Sung-Im DO ; Kyungeun KIM ; Seoung Wan CHAE ; In-gu DO ; Hyun Joo LEE ; Dong Hoon KIM ; Jin Hee SOHN
Journal of Pathology and Translational Medicine 2021;55(5):317-323
Background:
Pokemon is an oncogenic transcription regulator that plays a critical role in cellular differentiation. Although it has been found to be overexpressed in several types of cancer involving different organs, its role in thyroid gland has yet to be reported. The objective of this study was to evaluate the expression of Pokemon in papillary thyroid carcinoma (PTC) based on clinicopathological parameters.
Methods:
Tissue microarray samples derived from patients with PTC or benign thyroid disease were used to evaluate Pokemon expression based on immunohistochemical analysis. Correlations of its expression with various clinicopathological parameters were then analyzed.
Results:
Pokemon expression was observed in 22.0% of thyroid follicular cells from the normal group, 44.0% from the group with benign thyroid diseases, and 92.1% from the group with PTC (p < .001). The intensity of Pokemon expression was markedly higher in the PTC group. Pokemon expression level and PTC tumor size showed an inverse correlation. T1a tumors showed strong expression levels of Pokemon. However, larger tumors showed weak expression (p = .006).
Conclusions
Pokemon expression is associated with tumorigenesis of PTC, with expression showing an inverse correlation with PTC tumor size. This might be related to the negative regulation of aerobic glycolysis by Pokemon.
6.Early postoperative treatment of mastectomy scars using a fractional carbon dioxide laser: a randomized, controlled, split-scar, blinded study
Hyun Woo SHIN ; Sangwoo SUK ; Seoung Wan CHAE ; Kun Chul YOON ; Junekyu KIM
Archives of Plastic Surgery 2021;48(4):347-352
Background:
Mastectomy leaves unsightly scarring, which can be distressing to patients. Laser therapy for scar prevention has been consistently emphasized in recent studies showing that several types of lasers, including fractional ablation lasers, are effective for reducing scar formation. Nonetheless, there are few studies evaluating the therapeutic efficacy of ablative CO2 fractional lasers (ACFLs).
Methods:
This study had a randomized, comparative, prospective, split-scar design with blinded evaluation of mastectomy scars. Fifteen patients with mastectomy scars were treated using an ACFL. Half of each scar was randomized to “A,” while the other side was allocated to group “B.” Laser treatment was conducted randomly. Scars were assessed using digital photographs of the scar and Vancouver scar scale (VSS) scores. Histological assessments were also done.
Results:
The mean VSS scores were 2.20±1.28 for the treatment side and 2.96±1.40 for the control side. There was a significant difference in the VSS score between the treatment side and the control side (P=0.002). The mean visual analog scale (VAS) scores were 4.13±1.36 for the treatment side and 4.67±1.53 for the control side. There was a significant difference in VAS score between the treatment side and the control side (P=0.02).
Conclusions
This study demonstrated that early scar treatment using an ACFL significantly improved the clinical results of the treatment compared to the untreated scar, and this difference was associated with patient satisfaction.
7.Proto-oncogene Pokemon in thyroid cancer: a potential promoter of tumorigenesis in papillary thyroid carcinoma
Kyungseek CHANG ; Sung-Im DO ; Kyungeun KIM ; Seoung Wan CHAE ; In-gu DO ; Hyun Joo LEE ; Dong Hoon KIM ; Jin Hee SOHN
Journal of Pathology and Translational Medicine 2021;55(5):317-323
Background:
Pokemon is an oncogenic transcription regulator that plays a critical role in cellular differentiation. Although it has been found to be overexpressed in several types of cancer involving different organs, its role in thyroid gland has yet to be reported. The objective of this study was to evaluate the expression of Pokemon in papillary thyroid carcinoma (PTC) based on clinicopathological parameters.
Methods:
Tissue microarray samples derived from patients with PTC or benign thyroid disease were used to evaluate Pokemon expression based on immunohistochemical analysis. Correlations of its expression with various clinicopathological parameters were then analyzed.
Results:
Pokemon expression was observed in 22.0% of thyroid follicular cells from the normal group, 44.0% from the group with benign thyroid diseases, and 92.1% from the group with PTC (p < .001). The intensity of Pokemon expression was markedly higher in the PTC group. Pokemon expression level and PTC tumor size showed an inverse correlation. T1a tumors showed strong expression levels of Pokemon. However, larger tumors showed weak expression (p = .006).
Conclusions
Pokemon expression is associated with tumorigenesis of PTC, with expression showing an inverse correlation with PTC tumor size. This might be related to the negative regulation of aerobic glycolysis by Pokemon.
8.Cutaneous Müllerian Cyst on the Ankle: A Case Report
Junghwa YANG ; Sunmin YIM ; Heunjoo LEE ; Won-serk KIM ; Seoung Wan CHAE ; Ga-Young LEE ; Young Jun CHOI
Korean Journal of Dermatology 2020;58(4):265-268
Cutaneous Müllerian cyst (CMC) is a rare benign cystic lesion that typically occurs on the lower extremity of young females shortly after puberty. They have been widely regarded as Müllerian heterotopias due to the morphological similarities of the cyst lining cells to the epithelium of the fallopian tubes. A 16-year-old female presented with a two-year history of a solitary, subcutaneous mass involving the left ankle. She had no specific symptoms associated with the skin lesion. However, the lesion had been growing in size. Histopathological findings revealed cystic structures lined by pseudostratified ciliated cuboidal to columnar cells, accompanying intraluminal papillary projection. The immunohistochemical staining profiles, including positive staining for estrogen and progesterone receptors, were characteristic of the fallopian tube epithelium. After being surgically removed, the lesion was cured without recurrence. Based on her typical presentation and histopathological findings, we present this patient as a case of CMC.
9.Carpal Tunnel Syndrome Caused by Pseudogout
Eugene KIM ; Seoung Wan CHAE ; Hoseok LEE ; Seok Won LEE
The Journal of the Korean Orthopaedic Association 2019;54(4):372-376
Carpal tunnel syndrome (CTS) caused by pseudogout is an uncommon disease. The authors report a 65-year-old female who complained of sudden pain and neurological symptoms on her left hand. Surgical decompression was performed. In the histologic study, a calcium pyrophosphate dihydrate crystal deposit was confirmed. Her pain and neurological symptoms were relieved. Because CTS caused by pseudogout is rare, it is difficult to differentiate it from other diseases. This paper reports an uncommon case of CTS caused by pseudogout.
Aged
;
Calcium Pyrophosphate
;
Carpal Tunnel Syndrome
;
Chondrocalcinosis
;
Decompression, Surgical
;
Female
;
Hand
;
Humans
;
Median Nerve
10.Coexistence of metastatic thyroid cancer and tuberculosis in a single neck lymph node: a rare association.
Kyueng Whan MIN ; Dong Hoon KIM ; Seoung Wan CHAE ; Jin Hee SOHN ; Kyoung Min MOON
The Korean Journal of Internal Medicine 2018;33(5):1036-1037
No abstract available.
Lymph Nodes*
;
Neck*
;
Thyroid Gland*
;
Thyroid Neoplasms*
;
Tuberculosis*

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