Surgical marker navigation system in breast conserving surgery and excision of non-palpable lesions: first Spanish single-center experience.

Background: Due to the establishment of screening mammography for breast cancer detection, the number of non-palpable lesions has increased. Thus, an optimal localization system is mandatory for the excision of non-palpable breast tumors.

Objective: The aim of the study is to report the feasibility Surgical Marker Navigation (SMN) system Sirius Pintuition® for the excision of non-palpable breast tumors and non-palpable axillary lymph nodes.

Treatment of metastatic squamous cell carcinoma arising in sacrococcygeal pilonidal sinus: a case report series.

Background: Squamous cell carcinoma (SCC) arising in a sacrococcygeal pilonidal sinus is rare, with cases of metastatic disease being even rarer. Among published cases, almost none have reported on systemic treatment.

Objective: This disease has a poorer prognosis than other forms of cutaneous SCC; therefore, our objective is to shed some light on the treatment of metastatic disease.

I Radioactive Seed Localization vs. Conventional Surgery for the Treatment of Mesenchymal Tumours: A Propensity Score Matching Analysis.

Purpose: Radioguided localization can assist the surgery of hard-to-find lesions. The aim was to evaluate the results of the I Radioactive Seed Localization (RSL) technique to guide a margin-free tumoral resection of mesenchymal tumours compared to conventional surgery and its influence in oncological outcomes.

Methods: Retrospective observational study of all consecutive patients who underwent I RSL for the surgery of a mesenchymal tumour from January 2012 to January 2020 in a tertiary referral centre in Spain.

Impact of unplanned resection and re-excision of a soft tissue sarcoma on prognosis.

Introduction: Up to 40% of all initial operations for soft tissue sarcoma (STS) are unplanned, which would leave residual macroscopic tumor in more than 50% of the cases. The effect this has on local recurrence rate, metastases rate and survival has never been fully established, due to the lack of randomized studies.

Methods: Retrospective review of patients with STS treated in our unit between January 2001-January 2016.

Conservative treatment for infiltrating breast cancer. Ten years follow-up experience.

Introduction: We retrospectively analyze our experience in conservative treatment for infiltrating advanced breast cancer before implementation of selective sentinel node biopsy, specially focusing on characteristics, incidence, treatment and evolution of local-regional recurrences, disease-free survival time, overall survival and patient's satisfaction.

Material And Methods: From January 1984 to 31st December 1998, 739 female patients were operated in our institution, diagnosed as having infiltrating breast cancer. One hundred and eighty-eight patients (25.