Do unplanned resections in soft tissue sarcomas of the extremities have an adverse impact on the prognosis? Experience of a Latin-American sarcoma reference center.

Background: Soft tissue sarcomas (STS) are rare, heterogeneous neoplasms often not optimally managed by teams without sarcoma expertise. Between 40 % and 50 % of primary resections for extremity sarcomas occur without prior biopsy, resulting in inadequate excisions, termed "unplanned resections" or "whoops surgery."

Objective: To determine the rate of unplanned resections in extremity STS referred to a high-volume sarcoma center and evaluate their impact on oncological outcomes.

Bone invasion in soft tissue sarcomas of the extremities: An underappreciated prognostic factor. Bone invasion in soft tissue sarcomas.

Background: Bone invasion is unfrequently reported in soft tissue sarcomas of the extremities (eSTS), it is difficult to assess preoperatively and its prognostic impact has not been extensively studied. The objective of this paper was to analyze the incidence and the clinical impact of histologically proven bone invasion in individuals with eSTS.

Methods: A retrospective analysis was performed using the medical files patients who had eSTS and were treated between 2012 and 2016.