Publications by authors named "Byung-Joo Song"

Objective: To investigate the prevalence and risk factors of axillary web syndrome (AWS) in Korean patients.

Methods: This retrospective study included a total of 189 women who underwent breast cancer surgery and received physical therapy between September 2019 and August 2020. We analyzed AWS and the correlation between the patients' demographics, underlying disease, type of surgery and chemotherapy or radiation therapy, and lymphedema.

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Background: There is no proven primary preventive strategy for doxorubicin-induced subclinical cardiotoxicity (DISC), especially among patients without a cardiovascular (CV) risk. We investigated the primary preventive effect on DISC of the concomitant use of angiotensin receptor blockers (ARBs) or beta-blockers (BBs), especially among breast cancer patients without a CV risk.

Methods: A total of 385 patients who were scheduled for doxorubicin chemotherapy were screened.

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Purpose: The ACOSOG Z0011 trial demonstrated that axillary lymph node dissection (ALND) is unnecessary in select patients with cT1-2N0 tumors undergoing breast-conserving therapy with 1-2 positive sentinel lymph nodes (SLNs). However, patients with preoperatively confirmed ALN metastasis were not included and may be subjected to unnecessary ALND. The aim of this study is to identify patients who can be considered for ALND omission when the preoperative ALN biopsy results are positive.

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Background: A prediction model with high sensitivity for the detection of negative axillary involvement can reduce additional axillary surgery in patients with ductal carcinoma in situ (DCIS) upstaged to invasive cancer while saving patients with pure DCIS from unnecessary axillary surgeries. Using a nationwide database, we developed and validated a scoring system for guidance in selective sentinel lymph node biopsy omission.

Patients And Methods: A total of 41,895 patients with clinically node-negative breast cancer from the Korean Breast Cancer Registry were included.

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Background: Primary angiosarcoma of the breast is extremely rare, accounting for less than 0.05% of all primary malignancies of the breast. Here, we report here a case of primary angiosarcoma with full description of radiology and histology, including electron microscopic findings.

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Long-term venous access is usually required in patients receiving chemotherapy. We hypothesized that, out of the various central line approach techniques, the cephalic vein cut-down technique can be a safe and simple alternative in terms of surgical safety, feasibility, cost-effectiveness, and functional outcomes.We retrospectively reviewed the medical records of 569 patients who underwent implantable central venous access between January 2012 and December 2014 at our hospital.

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Background: Breast cancer is the second most prevalent malignancy among Korean women. Changes in lifestyle during and after remission of breast cancer tend to increase abdominal visceral fat, leading to increased risks of metabolic syndrome and chronic diseases.

Purpose: This cross-sectional study examined the differences in metabolic syndrome risk factors and health-related behaviors between abdominally obese and nonabdominally obese groups of Korean patients with breast cancer.

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Objective: To determine the diagnostic performance of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and DCE ultrasound (DCE-US) for predicting response to neoadjuvant chemotherapy (NAC) in breast cancer patients.

Materials And Methods: This Institutional Review Board-approved prospective study was performed between 2014 and 2016. Thirty-nine women with breast cancer underwent DCE-US and DCE-MRI before the NAC, follow-up DCE-US after the first cycle of NAC, and follow-up DCE-MRI after the second cycle of NAC.

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Purpose: Pathological complete response (pCR) of axillary lymph node (LN) is frequently achieved in patients with clinically node-positive breast cancer after neoadjuvant chemotherapy (NAC). Treatment of the axilla after NAC is not well established and the value of sentinel LN biopsy following NAC remains unclear. This study investigated the predictive value of axillary response following NAC and evaluated the predictive value of a model based on axillary response.

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Background: Despite many high-quality programs in basic surgical-skill education, the surgical skill of junior doctors varies widely. This, together with the waning interest in surgery as a career among medical students, is a serious issue confronted by hospitals and healthcare systems worldwide. We, therefore, developed and implemented an intensive one-day surgical-skill training course for two purposes; it would improve surgical skills and increase interest in surgery among medical students.

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Purpose: To determine the diagnostic performance of intravoxel incoherent motion (IVIM) diffusion-weighted (DW) magnetic resonance imaging (MRI) parameters in predicting response to neoadjuvant chemotherapy (NAC) in breast cancer patients.

Materials And Methods: Forty-six patients with stage II or III breast cancer underwent MRI including DW imaging with 10 b values before and after 2cycles of NAC. Apparent diffusion coefficient (ADC) and IVIM parameters (D, D*, and f) were obtained using histogram analysis derived from whole-tumor volumes.

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Sparganosis is a parasitic infection caused by the sparganum, the plercercoid of the genus Spirometra. The preoperative diagnosis of breast sparganosis is difficult in most cases because it is a rare parasitic infection less than 2% of all cases. We report a 62-year-old woman case of breast sparganosis that were confirmed by surgical removal of worms from the right breast.

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Background/aims: According to the results of several studies, the outcome of hepatitis C virus (HCV) reactivation is not as severe as the outcome of hepatitis B virus reactivation. The aim of this study was to evaluate the effect of pharmacological immunosuppression on HCV reactivation.

Methods: The medical records of patients who underwent systemic chemotherapy, corticosteroid therapy, or other immunosuppressive therapies between January 2008 and March 2015 were reviewed.

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Importance: Younger women (aged ≤50 years) who underwent breast conservation therapy may benefit from breast magnetic resonance imaging (MRI) screening as an adjunct to mammography.

Objective: To prospectively determine the cancer yield and tumor characteristics of combined mammography with MRI or ultrasonography screening in women who underwent breast conservation therapy for breast cancers and who were 50 years or younger at initial diagnosis.

Design, Setting, And Participants: This multicenter, prospective, nonrandomized study was conducted from December 1, 2010, to January 31, 2016, at 6 academic institutions.

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Purpose: The prognostic role of primary tumor surgery in women with metastatic breast cancer at diagnosis is contentious. A subset of patients who will benefit from aggressive local treatment is needed to be identified. Using a nationwide database, we developed and validated a predictive model to identify long-term survivors among patients who had undergone primary tumor surgery.

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Purpose: We intended to determine whether dexrazoxane (DZR) is cardioprotective during administration of adjuvant anthracycline-based chemotherapy followed by a 1-year trastuzumab treatment.

Methods: The medical records of 228 patients who underwent surgical resection and received adjuvant chemotherapy with trastuzumab for human epidermal growth factor receptor type 2 (HER2)-positive breast cancer between January 2010 and December 2014 were reviewed. Approximately 25% of patients received DZR prior to each administration of doxorubicin during doxorubicin with cyclophosphamide (AC) chemotherapy.

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Background: The aims of this study were to identify the clinical significances of the size of metastatic lymph node (mLN) and LN ratio (LNR) and to attempt to create a risk stratification for papillary thyroid carcinoma (PTC) patients.

Methods: We investigated the 435 PTC patients who underwent radioactive iodine (RAI) ablation treatment following thyroid surgery. The patients were classified into two groups (micrometastasis (pN1mic) ≤ 0.

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Background: While the majority of germline inactivating mutations in BRCA1/2 are small-scale mutations, large genomic rearrangements (LGRs) are also detected in a variable proportion of patients. However, routine genetic methods are incapable of detecting LGRs, and comprehensive genetic testing algorithm is necessary.

Methods: We performed multiplex ligation-dependent probe amplification assay for small-scale mutation negative patients at high-risk for LGR, based on previously published LGR risk criteria.

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Aims: Ki-67 is a prognostic marker in breast cancer; however, the use of the Ki-67 labelling index (LI) in clinical practice requires a consistent and easily accessible scoring method. The present study evaluated the use of the free internet-based image analysis program ImmunoRatio to score Ki-67 LI in breast cancer in comparison with manual counting.

Methods: Ki-67 immunohistochemical detection was performed in 577 breast cancer cases, and the Ki-67 LI was determined by ImmunoRatio and manual counting.

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Purpose: The purpose of this study was to prospectively evaluate the detectability and usefulness of automated whole breast ultrasound (AWUS) and to compare it with handheld breast ultrasound (HHUS) in cases with suspicious microcalcifications identified by mammography.

Methods: Forty-two patients with 43 suspicious microcalcifications (25 malignant and 18 benign) detected by mammography underwent AWUS, HHUS, and histol-ogic examination. With knowledge of the mammographic findings, HHUS was performed to assess the visibility of the microcalcifications and the presence of associated masses or ductal changes.

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Purpose: Intraductal papilloma (IDP) is a benign breast disease with malignant potential, for which complete surgical excision is usually recommended. The aim of the present study was to investigate predictive factors for upgrading patients with a benign papillary lesion (BPL).

Methods: This study was an observational study using a prospectively collected cohort.

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Hypoxia in the tumor microenvironment is the leading factor in angiogenesis. Angiogenesis can be identified by dynamic contrast-enhanced breast MRI (DCE MRI). Here we investigate the relationship between perfusion parameters on DCE MRI and angiogenic and prognostic factors in patients with invasive ductal carcinoma (IDC).

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Purpose: B-cell lymphoma 2 (BCL2) is an antiapoptosis protein and an important clinical breast cancer prognostic marker. As the role of BCL2 is dependent on the estrogen receptor (ER) status, this effect might differ according to molecular subtypes. The aim of this study was to evaluate the relationship between the prognostic outcomes and BCL2 expression among the molecular subtypes.

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Article Synopsis
  • The study aimed to assess changes in the apparent diffusion coefficient (ADC) histogram in breast cancer patients undergoing neoadjuvant chemotherapy (NAC) and to compare these changes between responders and non-responders.
  • A total of 62 patients were evaluated using 3T magnetic resonance imaging before and after two cycles of NAC, with responders defined as those showing at least a 30% reduction in tumor cells.
  • Results indicated significant increases in various ADC percentiles for all patients after NAC, with responders showing a tendency for greater increases compared to non-responders, highlighting the potential of ADC histogram analysis as a quantitative tool during treatment.
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Background: Little study of the extramammary finding of breast MRIs has been done with only descriptive work of the prevalence of location and malignancy. The purpose of the present study was to assess the prevalence, the location, and the imaging characteristics of the incidentally detected extramammary findings on breast MRI and to determine potential malignant characteristics.

Methods: The study evaluated extramammary findings in 109 patients who underwent breast MRI for the staging of breast cancer and for the follow-up of post-therapy.

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