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Background/Aim: Adoptive transfer of tumorinfiltrating lymphocytes (TILs) combined with nonmyeloablative chemotherapy (NMA) has been shown to prolong survival in patients with metastatic disease. Materials and Methods: Tissue harvesting was performed form a variety of sites. TILs were isolated, expanded and infused with bolus high-dose IL-2. Results: Between 2008 and 2018, 242 lesions were resected for TILs harvesting from a range of sites form 196 patients without mortality and with minimal morbidity. Of those harvested, 75 were unable to complete therapy because of clinical deterioration during the wait period. Of 121 evaluable treated patients, there was no effect of metastatic site biopsied on the mean fold TIL expansion. Those receiving prior ipilimumab had a higher TIL fold expansion but a lower TIL fold expansion than those exposed to anti-PD1 therapy. Conclusion: Harvesting may be safely performed with successful TIL expansion from most sites. Prior check point inhibitory immunotherapy may potentially influence TIL fold expansion.

Background For selected patients with early-stage breast cancer (BC), intraoperative radiation therapy (IORT) has emerged as a convenient alternative to standard whole breast irradiation (WBI). We report a single institution experience with IORT in terms of oncologic outcomes, toxicities, and cosmesis. Methods Clinicopathological and perioperative outcomes of patients who underwent IORT for early-stage BC at a public hospital from 2017 to 2020 were retrospectively retrieved. Toxicity was categorized to acute or chronic based on 6 months post-IORT cutoff. Results 85 patients underwent IORT and had complete data, aged 49‐85 years (mean 62). Intraoperative radiation therapy added 23 minutes on average to the total operative time. Final stage was 0, I, and II in 40%, 58.9%, and 1.1% of patients, respectively. Mean tumor size was 0.8 cm (range .1-2.1), with ductal histology comprising 94% of cases. Surgical margins were positive in 2 patients, and adjuvant WBI was required in 5 patients. After a median follow‐up of 17 months (range 3-41), none of the patients had local recurrence and no mortality was recorded. Early wound complications included wound dehiscence (n = 1), seroma/hematoma (n = 15), and re-operation with loss of nipple-areola complex (n = 1). Chronic skin toxicities were reported in 10 (12%) patients and good or excellent cosmetic outcome was reported in 93% of patients. Conclusions Utilizing IORT among low-risk early BC patients may be a safe and more convenient alternative to traditional WBI, with low toxicity rate, acceptable cosmetic results, and good oncologic outcomes at 17 months. Longer follow-up and further prospective controlled studies are needed to confirm these findings.

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9) retrospectively compared luminal node-positive patients who achieved axillary pathologic complete response after neoadjuvant treatment with those who did not, aiming to assess possible clinical and pathologic predictors of nodal response, as well as correlation between nodal response and oncologic outcomes.

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