Follow-up after Ductal Carcinoma In Situ Treatment.

Follow-up after ductal carcinoma in situ (DCIS) treatment is a matter of debates and a strategy has not yet been adopted. The current follow-up strategy is not distinguished from that of invasive breast cancers. Although in recent years DCIS is seen as a distinguished category of breast cancer, the follow-up strategy does not reflect this new paradigm. It continues to use the same strategy like in invasive breast cancer and practices differ widely worldwide or even in the same country. A consensus is needed to keep safety of patients and save costs without compromising the outcome.

Sentinel Lymph Node Biopsy in Breast Cancer. Principle, Difficulties and Pitfalls.

Sentinel Lymph node biopsy (SLNB) represents the standard approach in a newly diagnosed breast cancer for axillary staging in cases of clinical node negative. This represents a major prognostic factor and the biopsy of sentinel lymph node for early breast cancer is used as guidance in surgical and oncological treatment. Although for many decades, axillary lymph node dissection was the standard approach for breast cancer treatment and staging, this pathway was abandoned due to significant risk of lymphedema, infection, nerve and vessels injury or dysfunction of the shoulder. Therefore, significant improvement in the quality of life was seen for patients diagnosed with early breast cancer after SLNB was introduced as standard. The principle of SLNB is based on the hypothesis that tumor drains in the lymphatic system in an orderly manner and if the first lymphatic station is clear of disease, it is highly unlike that the tumor has spread further above. We present in our paper the indications with principles and difficulties in identification of sentinel node.

Rosai-Dorfman Disease: Breast Involvement-Case Report and Literature Review.

Background and objectives: Rosai-Dorfman disease (RDD) is a type of histiocytosis that usually appears in young adults or children as bilateral cervical lymphadenopathy, but extranodal involvement in not uncommon. Although the pathogenesis is not entirely elucidated, recent studies showed a possible neoplastic process. Materials and methods: Our manuscript presents a rare case of Rosai-Dorfman disease of the breast, the management of this rare case, and a literature review. There are few cases reported of RDD of the breast (around 90 globally reported cases); the data is poor, and the management not yet standardized for these cases. The case reported here shows the importance of correct breast investigation, breast imaging, and ultrasound-guided biopsy that provided an accurate diagnosis and guided further management. Results: Although RDD of the breast was rarely presented as bilateral disease in other case reports, our case showed bilateral breast disease with the suspicion of breast cancer on imaging. Pathology and immunohistochemistry were of critical importance and showed a specific pattern for histiocytosis. A multidisciplinary approach was taken into consideration for these cases in order to establish the approach. Some patients underwent surgery, but watchful waiting and close follow-up were the preferred approach. Conclusions: RDD of the breast is a rare form of histiocytosis, with fewer than 100 globally published cases. Although the management of this disease is not established yet by guidelines, a follow-up approach should be enough for these patients, and surgery might be overtreatment. Mortality from RDD is very low due to comorbidities. A multidisciplinary team decision is important, and abstinence might significantly benefit these patients.

Partial Breast Reconstruction with Lateral Chest Wall Perforator Flap to Facilitate Breast Conservation in Breast Cancer: First 100 Cases with Cancer Outcomes at 8 Years Follow-Up and the Lessons Learned.

BACKGROUND: This is a prospective cohort study of partial breast reconstruction (PBR) with a lateral chest wall perforator flap (LCWPF) to facilitate breast conservation surgery (BCS) for women undergoing surgery for breast cancer. The study was undertaken to study the clinical and cancer outcomes. METHODS: Patients diagnosed with ductal carcinoma in situ (DCIS) or breast cancer who consented to undergo BCS with PBR with LCWPF were included in the study. A prospective database has been maintained to collect information on clinico-pathological features, complications, and follow-up. Patients were asked to complete an anonymised PROM questionnaire over the years. The hospital electronic records were interrogated for women who have completed 5 years follow-up to assess for development of recurrence/events. RESULTS: A total of 105 patients underwent PBR with LCWPFs between 2011 and 2018. Of these, 74% underwent cancer resection and PBR as one operation whilst 26% underwent PBR as a two-stage approach. The median tumor size on pre-op imaging was 30 mm for the one-stage approach and 39.5 mm for the two-stage approach (p-value=0.003). The complication rates were low and the re-operation rate for close margins was 10%, with 4% eventually requiring mastectomy. Good-to-excellent esthetic outcomes were reported in more than 80% of cases by patients and clinicians. The local recurrence rate (LR) was 2%, distant recurrence rate 10.5%, disease free survival (DFS) 86%, distant disease-free survival (DDFS) 89% and overall survival (OS) 94.8% at 4.5 years median follow-up. This procedure provides an effective oncological approach, avoiding mastectomy with a good-to-excellent cosmetic outcome. The follow-up data establishes the safety of this approach. DISCUSSION: This is the first published series of recurrence and survival data in patients undergoing PBR. We intend to continue with data collection to assess long-term outcomes beyond 10 years. The authors would recommend consideration of this technique to facilitate BCS and avoid mastectomy. REGISTRATION: Not applicable.