The discerning influence of dynamic contrast-enhanced MRI in anticipating molecular subtypes of breast cancer through the artistry of artificial intelligence - a narrative review.

Radio genomics is an exciting new area that uses diagnostic imaging to discover genetic features of diseases. In this review, we carefully examined existing literature to evaluate the role of artificial intelligence (AI) and machine learning (ML) on dynamic contrastenhanced MRI (DCE-MRI) data to distinguish molecular subtypes of breast cancer (BC). Implications to noninvasive assessment of molecular subtype include reduction in procedure risks, tailored treatment approaches, ability to examine entire lesion, follow-up of tumour biology in response to treatment and evaluation of treatment resistance and failure secondary to tumour heterogeneity. Recent studies leverage radiomics and AI on DCE-MRI data for reliable, non-invasive breast cancer subtype classification. This review recognizes the potential of AI to predict the molecular subtypes of breast cancer non-invasively.

Virtual reality-based interventions, a neoteric approach for management and rehabilitation in patients with breast cancer.

Breast cancer (BC) patients and survivors can experience immense emotional and psychosocial trauma. Treatment modalities for BC, including surgery, chemotherapy and radiotherapy are associated with certain displeasing and undesirable effects, including physical restrictions as well as mental stress. However, it has been ascertained that appropriate supportive and rehabilitative strategies can significantly help to alleviate the distress. Along with several conventional physical therapy options, the novel Virtual Reality (VR) tool has opened a new gateway in rehabilitative approaches in patients with BC. We reviewed the role of VR based management for BC-related incapacitations and found that its efficacy is comparable to that of contemporary therapy options. It has the additional benefits of modulating pain perceptions, improving mobility, and overall enhancing the quality of life of BC survivors.

Transforming breast cancer care: harnessing the power of artificial intelligence and imaging for predicting pathological complete response. a narrative review.

This narrative review explores the transformative potential of Artificial Intelligence (AI) and advanced imaging techniques in predicting Pathological Complete Response (pCR) in Breast Cancer (BC) patients undergoing Neo-Adjuvant Chemotherapy (NACT). Summarizing recent research findings underscores the significant strides made in the accurate assessment of pCR using AI, including deep learning and radiomics. Such AI-driven models offer promise in optimizing clinical decisions, personalizing treatment strategies, and potentially reducing the burden of unnecessary treatments, thereby improving patient outcomes. Furthermore, the review acknowledges the potential of AI to address healthcare disparities in Low- and Middle-Income Countries (LMICs), where accessible and scalable AI solutions may enhance BC management. Collaboration and international efforts are essential to fully unlock the potential of AI in BC care, offering hope for a more equitable and effective approach to treatment worldwide.

Artificial intelligence-powered optimization of KI-67 assessment in breast cancer: enhancing precision and workflow efficiency. a literature review.

Breast Cancer (BC) has evolved from traditional morphological analysis to molecular profiling, identifying new subtypes. Ki-67, a prognostic biomarker, helps classify subtypes and guide chemotherapy decisions. This review explores how artificial intelligence (AI) can optimize Ki-67 assessment, improving precision and workflow efficiency in BC management. The study presents a critical analysis of the current state of AI-powered Ki-67 assessment. Results demonstrate high agreement between AI and standard Ki-67 assessment methods highlighting AI's potential as an auxiliary tool for pathologists. Despite these advancements, the review acknowledges limitations such as the restricted timeframe and diverse study designs, emphasizing the need for further research to address these concerns. In conclusion, AI holds promise in enhancing Ki-67 assessment's precision and workflow efficiency in BC diagnosis. While challenges persist, the integration of AI can revolutionize BC care, making it more accessible and precise, even in resource-limited settings.

Advancements in oligometastatic breast cancer: a comprehensive review of current strategies and the role of artificial intelligence.

In the dynamic landscape of Breast Cancer (BC), Oligo- Metastatic Breast Cancer (OMBC) presents unique challenges and opportunities. This comprehensive review delves into current strategies for addressing OMBC, covering locoregional and site-specific metastasis management, and addressing both surgical and minimally invasive therapies as essential components. Moreover, the transformative role of Artificial Intelligence (AI) is spotlighted. However, while the future looks promising, several limitations need addressing, including the need for further research, especially in diverse patient populations and resource-challenged settings. AI implementation may require overcoming the lack of Electronic Health Records acceptance in resource-challenged countries, which contributes to a scarcity of large datasets for AI training. As AI continues to evolve, validation and regulatory aspects must be continually addressed for seamless integration into clinical practice. In summary, this review outlines the evolving landscape of OMBC management, emphasizing the need for comprehensive research, global collaboration, and innovative AI solutions to enhance patient care and outcomes.

Outcomes of oncoplastic breast surgery compared to breast-conserving surgery in breast cancer patients in a developing country: a retrospective cohort study.

Background and Objective: Breast-conserving surgery (BCS) with adjuvant radiotherapy remains the standard of care for early breast cancers in Pakistan. We sought to compare the outcomes of BCS with oncoplastic surgery (OPS), a relatively infrequent approach to breast cancer treatment in the country. Methods: This retrospective cohort study was conducted at Aga Khan University Hospital and Ziauddin Hospital in Karachi. Patients who had biopsy-proven Stage-I to III breast cancer and underwent either OPS or BCS between August 1, 2016, and December 31, 2021, were identified and followed for 30 days. Data were collected by reviewing patient files and electronic records. Results: A total of 481 patients were included in the study, where 204 (42.4%) underwent BCS and 277 (57.6%) underwent OPS. Mean tumor volume (146.8 vs. 90.4 cm3), and postoperative complications (2.2 % vs. 0%) were higher in OPS while the frequency of positive margins was greater in the BCS group (15.7 % vs. 2.2 %). There were no significant differences in the histologic type of tumor between the two groups. Conclusion: OPS is a valid alternative approach to breast cancer treatment that can be offered to women with early stage, locally advanced, multifocal or tumors at complex locations owing to the reduced occurrence of positive margins and thus lowered re-excision rates.

Impact of Postoperative Antibiotic Prophylaxis on Surgical Site Infections Rates After Mastectomy with Drains but Without Immediate Reconstruction: A Multicenter, Double-Blinded, Randomized Control Superiority Trial.

BACKGROUND: There is no consensus on the use of postoperative antibiotic prophylaxis (PAP) after mastectomy with indwelling drains. We explored the utility of continued PAP in reducing surgical site infection (SSI) rates after mastectomy without immediate reconstruction and with indwelling drains. PATIENTS AND METHODS: A multicenter, two-armed, randomized control superiority trial was conducted in Pakistan. We enrolled all consenting adult patients undergoing mastectomy without immediate reconstruction. All patients received a single preoperative dose of cephalexin within 60 min of incision, and postoperatively were randomized to receive either continued PAP using cephalexin (intervention) or a placebo (control) for the duration of indwelling, closed-suction drains. The primary outcome was the development of SSI within 30 days and 90 days postoperatively. Secondary outcomes included study-drug-associated adverse events. Intention-to-treat analysis was performed using multivariable Cox regression. RESULTS: A total of 369 patients, 180 (48.8%) in the intervention group and 189 (51.2%) in the control group, were included in the final analysis. Overall cumulative SSI rates were 3.5% at 30 days and 4.6% at 90 days postoperatively. PAP was not associated with SSI reduction at 30 (hazard ratio, HR 1.666 [95% confidence interval CI 0.515-5.385]) or 90 (1.575 [0.558-4.448]) days postoperatively, or with study-drug-associated adverse effects (0.529 [0.196-1.428]). CONCLUSIONS: Continuing antibiotic prophylaxis for the duration of indwelling drains after mastectomy without immediate reconstruction offers no additional benefit in terms of SSI reduction. There is a need to update existing guidelines to provide clearer recommendations regarding use of postoperative antibiotic prophylaxis after mastectomy in the setting of indwelling drains.

Prophylactic Risk-Reducing Mastectomy (PRRM): A Set Practice or Catch-22 Situation in LMIC. A Single-Centre Prospective Cohort Study.

Background Pakistan's hereditary breast cancer has a higher-than-average prevalence. Our acceptability of prophylactic risk-reducing mastectomy (PRRM) still needs to be determined, and genetic testing still needs to be offered to all eligible. The aim is to determine the number of women presenting to our centre who availed of PRRM after positive genetic tests and the main reasons restraining them from considering PRRM.Materials and methods This study is a single-centre, prospective cohort. We collected data from 2017 to 2022 on BRCA1/2 and other (P/LP) gene-positive patients. Continuous variables are presented as means (±SD) and categorical variables in percentages, with a significant P-value of ≤ 0.05.Results Out of 477 tested individuals, only 95(20.12%) had a positive result. BRCA1/2 was positive in 70 cases, while P/LP variants were in 24 cases. Only 32.6% of eligible families underwent genetic testing, with 54.8% positivity. Altogether, 92.6% of patients had BRCA1/2-related cancers. Only 25/95(26.3%) individuals availed of PRRM, the majority had contralateral risk-reducing mastectomy 68% with a 20% reconstruction rate. The main reasons to decline PRRM were false belief of not having any disease 57.44%, followed by family/spouse pressure 51%, body appearance/societal perception, fear of complications/quality of life and financial constraints.Conclusion Genetic testing and its implications are still a grey area for LMICs, primarily due to the scarcity of centres offering genetic testing to eligible populations, followed by prevalent perceptions about prophylactic surgeries among the masses. Addressing relevant issues in LMICs is the need of time.

Recent Advancements in Gremlin-1: Breast cancer.

One of the bone's morphogenic protein (BMP) antagonists, Gremlin-1 or GREM-1, can bind directly to BMPs. GREM-1 can act in either BMP-dependent or -independent pathways, according to research. It reinforces organogenesis, tissue differentiation, and organ fibrosis. Recent research from numerous studies has demonstrated the significance of GREM-1 in the initiation, progression, and even metastasis of different cancers, including breast, cervical, gastric, and colorectal cancers. This review highlights the function of GREM-1 in the development of breast cancer and its effect on the cellular procedures and signalling pathways involved in carcinogenesis.

Comprehensive targeted treatment options available for Breast cancer stem cells; A literature review of the last 10 years' developments.

Breast Cancer Stem Cells (BCSCs), unlike normal breast cells, exhibit the potential for self-regeneration and tumour formation and express unique markers. Studies have highlighted their role in tumour progression, recurrence, and treatment resistance. BCSCs can be one of the reasons that resistance is encountered despite recent advances in the treatment of breast cancer (BC). This review underlines the clinical implications at the molecular level of different cellular pathways, cellular level interactions in Tumour Micro Environment (TME), and types of markers and receptors involved in tumorigenesis. It accentuates the importance of comprehensive targeted treatment options available for BCSCs so that targeted modalities can be introduced to deal with treatment resistance. Stem cells (SCs) are a developing field, and limited data is available from our country to use stem cell-targeted treatment plans as a therapeutic option. Therefore, this literature review will provide insight for future research in this domain.

Breast Cancer Management Consensus By The Society of Surgeons and Surgical Oncology Society of Pakistan.

The Society of Surgeons of Pakistan and The Society of Surgical Oncology of Pakistan with factions from various major centres comprising of surgical oncology, medical and radiation oncology collaborated to reach consensus on breast cancer management guidelines and a framework of "good practice" minimum standards of care. The aim of the task force was to enhance treatment standards, which have a direct correlation with improving patient mortality and morbidity and long-term survival whilst taking into consideration economic limitations of access to leading centers of excellence as well as minimum expertise required in health care. These multidisciplinary guidelines, whilst not exhaustive, aim to provide an algorithm of care for breast cancer patients at tertiary care centres and district level hospitals to provide most appropriate treatment.

An initial experience of using dual energy contrast enhanced mammography at a tertiary care hospital in Pakistan.

Objective: Contrast enhanced mammography (CEM), a relatively new and promising modality, combines mammography (MMG) with an iodinated contrast material to illuminate neovascularity within the breast; analogous to magnetic resonance imaging (MRI). CEM improves the overall sensitivity of MMG; reduces the need for unnecessary biopsies and follow-up imaging and can be considered a reasonable substitute for MRI. In Pakistan, CEM was recently introduced and to assess its usability a study was conducted on five patients before making it available as a regular investigation. Case presentations: Four out of the five patients had a clinical suspicion of malignancy with two patients having heterogeneously dense breasts and two with dense breasts. All enhancing lesions were concordant on biopsy and had similar corresponding findings on additional imaging such as ultrasound (US) and/or MRI. CEM in all four cases of biopsy proven malignancy facilitated surgical planning. The fifth patient underwent CEM for screening and was found to have no enhancing lesion. Conclusion: In low-middle-income countries (LMICs) where breast MRI is not readily available and expensive for the populace, CEM can be a reliable alternative. The initial experience with CEM at our hospital shows better visualization of malignant lesions in dense and heterogeneously dense breasts with an easy-to-perform technique and a shorter imaging time while facilitating surgical decision-making in terms of breast conservation.

Spectrum of germline pathogenic variants using a targeted next generation sequencing panel and genotype-phenotype correlations in patients with suspected hereditary breast cancer at an academic medical centre in Pakistan.

BACKGROUND: Breast cancer is the most common malignancy in women, affecting over 1.5 million women every year, which accounts for the highest number of cancer-related deaths in women globally. Hereditary breast cancer (HBC), an important subset of breast cancer, accounts for 5-10% of total cases. However, in Low Middle-Income Countries (LMICs), the population-specific risk of HBC in different ethnicities and the correlation with certain clinical characteristics remain unexplored. METHODS: Retrospective chart review of patients who visited the HBC clinic and proceeded with multi-gene panel testing from May 2017 to April 2020. Descriptive and inferential statistics were used to analyze clinical characteristics of patients. Fisher's exact, Pearson's chi-squared tests and Logistic regression analysis were used for categorical variables and Wilcoxon rank-sum test were used for quantitative variables. For comparison between two independent groups, Mann-Whitney test was performed. Results were considered significant at a p value of < 0.05. RESULTS: Out of 273 patients, 22% tested positive, 37% had a VUS and 41% had a negative genetic test result. Fifty-five percent of the positive patients had pathogenic variants in either BRCA1 or BRCA2, while the remaining positive results were attributed to other genes. Patients with a positive result had a younger age at diagnosis compared to those having a VUS and a negative result; median age 37.5 years, IQR (Interquartile range) (31.5-48). Additionally, patients with triple negative breast cancer (TNBC) were almost 3 times more likely to have a positive result (OR = 2.79, CI = 1.42-5.48 p = 0.003). Of all patients with positive results, 25% of patients had a negative family history of breast and/or related cancers. CONCLUSIONS: In our HBC clinic, we observed that our rate of positive results is comparable, yet at the higher end of the range which is reported in other populations. The importance of expanded, multi-gene panel testing is highlighted by the fact that almost half of the patients had pathogenic or likely pathogenic variants in genes other than BRCA1/2, and that our test positivity rate would have only been 12.8% if only BRCA1/2 testing was done. As the database expands and protocol-driven referrals are made across the country, our insight about the genetic architecture of HBC in our population will continue to increase.

Diagnostic accuracy of axillary nodal ultrasound after neoadjuvant chemotherapy in node-positive breast cancer patients: A validation study.

OBJECTIVE: To determine the accuracy and false negative rate of axillary ultrasound compared to sentinel node biopsy. METHODS: The retrospective study was conducted at the Aga Khan University Hospital, Karachi, from February 1 to March 31, 2021, and comprised data of breast cancer patients who had undergone neo-adjuvant chemotherapy followed by axillary lymph node dissection or axillary disease diagnosed using lymph node biopsy or sentinel lymph node biopsy between January 1, 2016, and December 30, 2020. After receiving neoadjuvant chemotherapy, axillary ultrasound findings were compared with histopathology of lymph nodes. Data was analysed using SPSS 22. RESULTS: Of the 155 patients evaluated, 104(67.1%) were diagnosed with negative axillary lymph nodes and 51(32.9%) were diagnosed with positive axillary lymph nodes post-chemotherapy. The overall mean age was 51.13±1.3 years. When histopathology results were compared with those of axillary ultrasound, 36(23.2%) cases turned out to be true positive, while 23(14,8%) were false negative, yielding a positive predictive value of 75% and negative predictive value of 65%. Axillary ultrasound had 75% accuracy, false negative rate 30%, sensitivity 61% and specificity 84.4%. CONCLUSIONS: Axillary ultrasound was found to be fairly useful, but not completely reliable, in identifying positive lymph nodes.

Current perspectives of oncoplastic breast surgery in Pakistan.

Oncoplastic breast surgery is based on the concept of tumour-specific immediate reconstruction. It combines both local and distant techniques to maintain breast texture, symmetry and cosmesis without compromising oncological outcome. The current narrative review was planned to highlight the current state and future of oncoplastic breast surgery in low- and middle-income countries where its utilisation in surgical practice remains insubstantial because majority of the surgeons who are treating breast cancer are either general surgeons or breast surgeons who do not have expertise in oncoplastic breast surgery or reconstructive surgery. Moreover, scarcity of financial resources, ignorance about oncoplastic breast surgery techniques, disfigurement distress and cultural taboos coerce women to hide in the shadows with their breast disease. Oncoplastic breast surgery needs more exposure in a developing country like Pakistan. There is a need to establish dedicated oncoplastic breast surgery training centres, fellowship programmes, workshops, and webinars to incorporate such techniques in the practice of breast surgeons.

Breast surgery super-specialization: Impact on advanced surgical training and research.

The earliest records of breast cancer (BC) date back to 3,000 - 2,500 B.C., ever since multiple curative options have been explored. First known wide margin excision was performed around 1st Century AD and a prototype of the modern-day BC surgery, Halsted radical mastectomy, was performed in the 20th Century. BC is the most common cancer in Pakistan accounting for up to 14.5% of the total cancer incidences. Accredited breast surgery fellowships were established in the UK and USA in 2002 and 2003, respectively. In Pakistan, the movement was delayed and the two-year College of Physicians and Surgeons Pakistan (CPSP) accredited breast surgery fellowship program started in 2019. The increasing annual incidence and changes in demands have led to an increased percentage of General Surgery graduates taking up specialty training. PubMed search from 1990 to 2021 showed a rising trend in the number of breast cancer publications from Pakistan; from almost no papers before 1990 to 615 between 2012 to 2021. This remarkable surge in BC-related research can be explained by the commencement of fellowship programs in breast surgery and related fields. An increase in specialist training will yield better results in the management of patients, improve clinical trials and help produce more meaningful publications from the country.

Telementoring for breast surgeons practicing in remote areas.

Telementorship allows an expert surgeon to mentor another surgeon through an advanced procedure from a remote location via 2-way audio-visual communication. The current article was planned to review the existing literature and evaluate the utility of telementorship regarding educating rural surgeons in Pakistan about multidisciplinary breast cancer care. Publications from 2016 to 2020 were searched on PubMed and GoogleScholar and 10 most recent publications were selected. Review of literature revealed that even though telementorship in this context might be comparable to onsite mentorship, multiple concerns need to be addressed before its implementation. These include lack of concrete evidence regarding its effectiveness, legal, security and financial issues. Thus, a pilot project evaluating the efficacy of telementorship needs to be conducted for rural breast surgeons working in Pakistan. If these studies show promise and an affordable, convenient and effective method of telementorship is devised, then it may become the future of breast surgery training in far-flung regions of Pakistan.

INTRA OPERATIVE FROZEN EXAMINATION OF SENTINEL LYMPH NODE IN BREAST CANCER.

BACKGROUND: Sentinel node (SN) biopsy is the standard of care for the assessment of axilla in early breast cancer patients with clinically node negative disease. Confirmed absence of tumour deposit in node on intra operative frozen section (FS) examination saves the patient from complete axillary dissection. However controversies arise when inconsistencies occur in results of frozen and permanent section. Reported sensitivity of frozen examination of sentinel node in literature ranges from 70-95%.The purpose of this study was to determine the sensitivity of frozen examination of sentinel node in breast cancer. The frozen section examination of sentinel node is not a reliable technique for accurate pathological assessment of node. METHODS: Data was collected prospectively on patients with sentinel node procedure from May to December 2013. All SNs removed at surgery were submitted for frozen section and the results were compared with permanent sections. RESULTS: Of 50 patients 16 were true positive while 32 were true negative. Two patients reported negative on FS were confirmed to be positive on permanent section. The accuracy of frozen section was 96%, with sensitivity of 89%. In false negative cases the size of nodal metastasis was significantly smaller than that of true positive, i.e., 1-2 mm. The false negative cases were further classified for assessment into technical and interpretative error. CONCLUSION: The intra operative frozen section examination is a reliable technique for the assessment of Sentinel node with a high accuracy rate to detect metastasis size of >2 mm. It spares the patient from complete axillary dissection and its subsequent morbidity of lymphedema and shoulder pain.

A rare case of a recurrent atypical adenomyoepithelial tumor of the breast: Case report.

INTRODUCTION: Adenomyoepithelial tumors of the breast are very rare tumors comprising of - fibroepithelial and myoepithelial components PRESENTATION OF THE CASE: We present the case of a 66 years old lady who presented with a right breast lump 5 cm in size, diagnosed as an atypical adenomyoepithelioma who underwent successful excision and returned two and half years later with a recurrence DISCUSSION: These tumors present a diagnostic dilemma needing histopathology for definitive diagnosis. Recurrence is not uncommon CONCLUSION: Adenomyoepitheliomas demand regular surveillance for early detection of any recurrence.