1.Aggressive clinical course of extramammary Paget disease after radiotherapy.
Yunseon CHOI ; Won PARK ; Jeeyun LEE ; Eun Yoon CHO ; Goo Hyun MOON
Radiation Oncology Journal 2014;32(2):95-98
Extramammary Paget disease (EMPD) is a rare disease, especially in Asian populations. Surgical resection is considered the primary treatment option. Recently, radiotherapy has been suggested as an EMPD treatment, either as an alternative to surgical resection or in combination with surgical resection. This report reviewed a patient with EMPD who was treated with wide excision of the EMPD site followed by radiotherapy for remaining gross lymph node metastases. The aim of this report was to determine the optimal treatment for advanced EMPD.
Asian Continental Ancestry Group
;
Drug Therapy
;
Humans
;
Lymph Nodes
;
Neoplasm Metastasis
;
Paget Disease, Extramammary*
;
Radiotherapy*
;
Rare Diseases
2.Lymphovascular invasion as a negative prognostic factor for triple-negative breast cancer after surgery.
Ki Jung AHN ; Jisun PARK ; Yunseon CHOI
Radiation Oncology Journal 2017;35(4):332-339
PURPOSE: This study aimed to evaluate the prognostic effects of lymphovascular invasion (LVI) in triple-negative breast cancer (TNBC) patients who underwent surgical resection. MATERIALS AND METHODS: A total of 63 non-metastatic TNBC patients who underwent surgical resection were retrospectively investigated from 2007 to 2016 in Inje University Busan Paik Hospital. Pathological tests revealed that 12 patients (19.0%) had LVI. Approximately 61.9% (n = 39) of the patients’ samples stained positive for p53. Additional chemotherapy and radiotherapy (RT) were performed in 53 (84.1%) and 47 (74.6%) patients, respectively. RESULTS: The median follow-up period was 39.5 months (range, 5.9 to 123.0 months). The pathological T stage (p = 0.008), N stage (p = 0.014), and p53 positivity (p = 0.044) were associated with LVI. Overall, the 3-year disease-free survival (DFS) rate and overall survival (OS) rate were 85.4% and 90.2%, respectively. Ten patients (15.9%) experienced relapse. LVI (n = 12) was associated with relapses (p = 0.016). p53 positivity was correlated with poor DFS (p = 0.048). Furthermore, LVI was related to poor DFS (p = 0.011) and OS (p = 0.001) and considered as an independent prognostic factor for DFS (p = 0.039). The 3-year DFS of patients with LVI (n = 12) was only 58.3%. Adjuvant RT minimized the negative prognostic effect of LVI on DFS (p = 0.068 [with RT] vs. p = 0.011 [without RT]). CONCLUSION: LVI was related to the detrimental effects of disease progression and survival of TNBC patients. Thus, a more effective treatment strategy is needed for TNBC patients with LVI.
Busan
;
Disease Progression
;
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Prognosis
;
Radiotherapy
;
Recurrence
;
Retrospective Studies
;
Triple Negative Breast Neoplasms*
3.Can Anorectal Manometry Findings Predict Subsequent Late Gastrointestinal Radiation Toxicity in Prostate Cancer Patients?.
Yunseon CHOI ; Won PARK ; Poong Lyul RHEE
Cancer Research and Treatment 2016;48(1):297-303
PURPOSE: The purpose of this study is to investigate the influence of radiotherapy (RT) on anorectal function and radiation-induced toxicity in patients with prostate cancer. MATERIALS AND METHODS: Fifty-four patients who were treated with RT for prostate cancer (T1c-4N0-1M0) were evaluated. To assess the changes in anorectal function, two consecutive anorectal manometry readings were performed in patients, before and after 4-6 months of RT. Late gastrointestinal (GI) toxicity was defined as symptoms occurring more than 6 months after RT. The median radiation dose was 70.0 Gy (range, 66.0 to 74.0 Gy). Whole pelvis field RT was performed in 16 patients (29.6%). Grade of late radiation toxicity was defined in accordance to the severity of symptoms (Gulliford's scoring system). RESULTS: The median follow-up period was 60 months. Resting anal pressure (p=0.001), squeeze pressure (p < 0.001), and urge to defecate volume (p=0.025) were significantly reduced after RT. Fourteen patients (25.9%) experienced late GI toxicities. Among them, nine (16.7%) showed severe (grade > or = 2) late toxicities. Elevated resting and squeeze external anal sphincter pressure prior to RT and large urge to defecate volumes after RT were associated with the occurrence of late GI toxicities. CONCLUSION: RT caused symptomatic anorectal dysfunction and resulted in a weakened anal sphincter. Increased urge to defecate volumes after RT were related to late GI toxicities. Elevated resting and squeeze anal sphincter pressure prior to RT rodcan be used to identify patients with an increased risk of late GI toxicities.ConclusionRT caused symptomatic anorectal dysfunction. An increased anal pressure prior to RT and urge to defecate volume after RT was related to an occurrence of late GI toxicities. Application of ARM for screening patients who have an elevated ASP prior to RT could be helpful in identifying patients with an increased risk of late GI toxicities.
Anal Canal
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Arm
;
Follow-Up Studies
;
Humans
;
Manometry*
;
Mass Screening
;
Pelvis
;
Prostate*
;
Prostatic Neoplasms*
;
Radiotherapy
;
Reading
;
Viperidae
4.Correction: Adverse effect of excess body weight on survival in cervical cancer patients after surgery and radiotherapy.
Yunseon CHOI ; Ki Jung AHN ; Sung Kwang PARK ; Heunglae CHO ; Ji Young LEE
Radiation Oncology Journal 2017;35(4):385-385
The authors noticed that the original version of this paper contains typographical error in Fig. 2.
Body Weight*
;
Humans
;
Radiotherapy*
;
Uterine Cervical Neoplasms*
5.Lymphedema after regional nodal irradiation for breast cancer: a retrospective cohort study
Ji Sun PARK ; Young Suk KIM ; Hee Yeon KIM ; Yunseon CHOI
Annals of Surgical Treatment and Research 2024;106(6):337-343
Purpose:
We aimed to analyze the occurrence of lymphedema as a side effect in patients who underwent regional nodal irradiation (RNI) following surgery for breast cancer.
Methods:
This retrospective study was conducted on patients with breast cancer who underwent surgery from July 2014 to October 2020 at Inje University Busan Paik Hospital. The analysis included 113 cT1-3N1-3M0 breast cancer patients who underwent RNI as part of radiotherapy (RT). Mostly, surgeries were performed using breast-conserving surgery (n = 99, 87.6%), except for 14 patients with modified radical mastectomy. The total RT dose for RNI was 45–60 Gy, and the fraction size was 1.8–2.0 Gy. Most patients underwent chemotherapy (n = 98, 86.7%), including taxanes (n = 92, 81.4%).
Results:
The median follow-up was 61.1 months (range, 5.0–110.5 months). Lymphedema occurred in 54 patients (47.8%) after surgery. Twenty of them (17.7%) developed a new onset of lymphedema after RT, while 34 (30.1%) detected lymphedema before the completion of RT. Over the follow-up, 16 patients (14.2%) experienced recurrence. High radiation dose (>50.4 Gy) for RNI (P = 0.003) and taxane use (P = 0.038) were related to lymphedema occurrence after RT. Moreover, lymphedema occurrence after RT was also related to recurrence after surgical resection (P = 0.026). Breast-conserving surgery was related to early-onset lymphedema before the completion of RT (P = 0.047). Furthermore, the degree of lymph node dissection (≤4) was related to the overall occurrence of lymphedema (P = 0.045).
Conclusion
Considering a reduction in RNI dose may be beneficial in mitigating the incidence of lymphedema after RT in patients with breast cancer.
6.Maximum standardized uptake value at pre-treatment PET in estimating lung cancer progression after stereotactic body radiotherapy
Jisun PARK ; Yunseon CHOI ; Ki Jung AHN ; Sung Kwang PARK ; Heunglae CHO ; Ji Young LEE
Radiation Oncology Journal 2019;37(1):30-36
PURPOSE: This study aimed to identify the feasibility of the maximum standardized uptake value (SUVmax) on baseline 18F-fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET/CT) as a predictive factor for prognosis in early stage primary lung cancer treated with stereotactic body radiotherapy (SBRT). MATERIALS AND METHODS: Twenty-seven T1-3N0M0 primary lung cancer patients treated with curative SBRT between 2010 and 2018 were retrospectively evaluated. Four patients (14.8%) treated with SBRT to address residual tumor after wedge resection and one patient (3.7%) with local recurrence after resection were included. The SUVmax at baseline PET/CT was assessed to determine its relationship with prognosis after SBRT. Patients were divided into two groups based on maximum SUVmax on pre-treatment FDG PET/CT, estimated by receiver operating characteristic curve. RESULTS: The median follow-up period was 17.7 months (range, 2.3 to 60.0 months). The actuarial 2-year local control, progressionfree survival (PFS), and overall survival were 80.4%, 66.0%, and 78.2%, respectively. With regard to failure patterns, 5 patients exhibited local failure (in-field failure, 18.5%), 1 (3.7%) experienced regional nodal relapse, and other 2 (7.4%) developed distant failure. SUVmax was significantly correlated with progression (p = 0.08, optimal cut-off point SUVmax > 5.1). PFS was significantly influenced by pretreatment SUVmax (SUVmax > 5.1 vs. SUVmax ≤ 5.1; p = 0.012) and T stage (T1 vs. T2-3; p = 0.012). CONCLUSION: SUVmax at pre-treatment FDG PET/CT demonstrated a predictive value for PFS after SBRT for lung cancer.
Disease-Free Survival
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Electrons
;
Follow-Up Studies
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Humans
;
Lung Neoplasms
;
Lung
;
Neoplasm, Residual
;
Positron-Emission Tomography
;
Positron-Emission Tomography and Computed Tomography
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Prognosis
;
Radiosurgery
;
Recurrence
;
Retrospective Studies
;
ROC Curve
7.Efficacy of Dose-Escalated Radiotherapy for Recurrent Colorectal Cancer.
Sunmi JO ; Yunseon CHOI ; Sung Kwang PARK ; Jin Young KIM ; Hyun Jung KIM ; Yun Han LEE ; Won Yong OH ; Heunglae CHO ; Ki Jung AHN
Annals of Coloproctology 2016;32(2):66-72
PURPOSE: This study aimed to evaluate the effects of radiotherapy (RT) on progression-free survival (PFS) for patients with recurrent colorectal cancer. METHODS: We reviewed the records of 22 patients with recurrent colorectal cancer treated with RT between 2008 and 2014. The median radiation dose for recurrent disease was 57.6 Gy (range, 45-75.6 Gy). Patients were divided into 2 groups according to the type of RT: patients underwent RT without previous history of irradiation (n = 14) and those treated with secondary RT (reirradiation: n = 8) at the time of recurrence. RESULTS: The median follow-up period was 24.9 months (range, 4.5-66.6 months). Progression was observed in 14 patients (including 8 with loco-regional failure and 9 with distant metastases). Distant metastases were related to the RT dose (<70 Gy, P = 0.031). The 2-year loco-regional control (LRC), PFS, and overall survival (OS) rates were 74.6%, 45.1%, and 82.0%, respectively. The LRC rate was not different between the patients treated with RT for the first time and those treated with reirradiation (P = 0.101, 2-year LRC 79.5% vs. 41.7%). However, reirradiation was related to poor PFS (P = 0.022) and OS (P = 0.002). An escalated RT dose (≥70 Gy) was associated with a higher PFS (P = 0.014, 2-year PFS 63.5% vs. 20.8%). CONCLUSION: Salvage RT for locally recurrent colorectal cancer can be offered when surgery is impossible. Dose-escalated RT shows a possible benefit in reducing the risk of progression.
Colorectal Neoplasms*
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Disease-Free Survival
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Radiotherapy*
;
Rectal Neoplasms
;
Recurrence
8.Association between obesity and local control of advanced rectal cancer after combined surgery and radiotherapy.
Yunseon CHOI ; Yun Han LEE ; Sung Kwang PARK ; Heunglae CHO ; Ki Jung AHN
Radiation Oncology Journal 2016;34(2):113-120
PURPOSE: The association between metabolism and cancer has been recently emphasized. This study aimed to find the prognostic significance of obesity in advanced stage rectal cancer patients treated with surgery and radiotherapy (RT). MATERIALS AND METHODS: We retrospectively reviewed the medical records of 111 patients who were treated with combined surgery and RT for clinical stage 2-3 (T3 or N+) rectal cancer between 2008 and 2014. The prognostic significance of obesity (body mass index [BMI] ≥25 kg/m²) in local control was evaluated. RESULTS: The median follow-up was 31.2 months (range, 4.1 to 85.7 months). Twenty-five patients (22.5%) were classified as obese. Treatment failure occurred in 33 patients (29.7%), including local failures in 13 patients (11.7%), regional lymph node failures in 5, and distant metastases in 24. The 3-year local control, recurrence-free survival, and overall survival rates were 88.7%, 73.6%, and 87.7%, respectively. Obesity (n = 25) significantly reduced the local control rate (p = 0.045; 3-year local control, 76.2%), especially in women (n = 37, p = 0.021). Segregation of local control was best achieved by BMI of 25.6 kg/m² as a cutoff value. CONCLUSION: Obese rectal cancer patients showed poor local control after combined surgery and RT. More effective local treatment strategies for obese patients are warranted.
Female
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Follow-Up Studies
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Humans
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Lymph Nodes
;
Medical Records
;
Metabolism
;
Neoplasm Metastasis
;
Obesity*
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Prognosis
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Radiotherapy*
;
Rectal Neoplasms*
;
Retrospective Studies
;
Survival Rate
;
Treatment Failure
9.Adverse effect of excess body weight on survival in cervical cancer patients after surgery and radiotherapy.
Yunseon CHOI ; Ki Jung AHN ; Sung Kwang PARK ; Heunglae CHO ; Ji Young LEE
Radiation Oncology Journal 2017;35(1):48-54
PURPOSE: This study aimed to assess the effects of body mass index (BMI) on survival in cervical cancer patients who had undergone surgery and radiotherapy (RT). MATERIALS AND METHODS: We retrospectively reviewed the medical records of 70 cervical cancer patients who underwent surgery and RT from 2007 to 2012. Among them, 40 patients (57.1%) had pelvic lymph node metastases at the time of diagnosis. Sixty-seven patients (95.7%) had received chemotherapy. All patients had undergone surgery and postoperative RT. Median BMI of patients was 22.8 kg/m² (range, 17.7 to 35.9 kg/m²). RESULTS: The median duration of follow-up was 52.3 months (range, 16 to 107 months). Twenty-four patients (34.3%) showed recurrence. Local failure, regional lymph nodal failure, and distant failure occurred in 4 (5.7%), 6 (8.6%), and 17 (24.3%) patients, respectively. The 5-year actuarial pelvic control rate was 83.4%. The 5-year cancer-specific survival (CSS) and disease-free survival (DFS) rates were 85.1% and 65.0%, respectively. The presence of pelvic lymph node metastases (n = 30) and being overweight or obese (n = 34, BMI ≥ 23 kg/m²) were poor prognostic factors for CSS (p = 0.003 and p = 0.045, respectively). Of these, pelvic lymph node metastasis was an independent prognostic factor (p = 0.030) for CSS. CONCLUSION: Overweight or obese cervical cancer patients showed poorer survival outcomes than normal weight or underweight patients. Weight control seems to be important in cervical cancer patients to improve clinical outcomes.
Body Mass Index
;
Body Weight*
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Diagnosis
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Disease-Free Survival
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Drug Therapy
;
Follow-Up Studies
;
Humans
;
Lymph Nodes
;
Medical Records
;
Neoplasm Metastasis
;
Obesity
;
Overweight
;
Radiotherapy*
;
Recurrence
;
Retrospective Studies
;
Thinness
;
Uterine Cervical Neoplasms*
10.Being Overweight or Obese Increases the Risk of Progression in Triple-Negative Breast Cancer after Surgical Resection.
Yunseon CHOI ; Sung Kwang PARK ; Ki Jung AHN ; Heunglae CHO ; Tae Hyun KIM ; Hye Kyoung YOON ; Yun Han LEE
Journal of Korean Medical Science 2016;31(6):886-891
This study aimed to evaluate the association between body mass index (BMI) and progression in triple-negative breast cancer (TNBC). We retrospectively reviewed the medical records of 50 patients with TNBC who underwent breast-conserving surgery or mastectomy between 2007 and 2014. All patients were classified according to BMI (median 23.5 kg/m2, range 17.2-31.6 kg/m2): 31 patients (62%) were classified as being overweight or obese (BMI ≥ 23 kg/m2) and 19 patients (38%) were classified as having a normal body weight (BMI < 23 kg/m2). The median follow-up for patients was 31.1 months (range, 6.7-101.9 months). Progression occurred in 7 patients (14%), including 5 ipsilateral breast tumor recurrences, 2 regional lymph node metastases, and 5 distant metastases. Progression was significantly correlated with overweight or obese patients (P = 0.035), while none of the normal weight patients showed progression. The 3-year disease-free survival (DFS) and overall survival (OS) rates were 85.0% and 87.7%, respectively. DFS was significantly reduced in overweight or obese patients compared to that in normal weight patients (P = 0.035). However, OS was not significantly compromised by being overweight or obese (P = 0.134). In conclusion, being overweight or obese negatively affects DFS in TNBC patients.
Adult
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Aged
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Body Mass Index
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Disease Progression
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Disease-Free Survival
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Female
;
Follow-Up Studies
;
Humans
;
Middle Aged
;
Neoplasm Recurrence, Local
;
Obesity/*complications
;
Overweight/*complications
;
Prognosis
;
Retrospective Studies
;
Risk Factors
;
Survival Rate
;
Triple Negative Breast Neoplasms/*complications/mortality/*pathology