Influence of preoperative Lynch syndrome diagnosis on surgery in patients with colorectal cancer.

Lynch Syndrome (LS) can guide surgery for colorectal cancer (CRC), particularly for MLH1/MSH2 carriers, who may benefit from extended procedures: total colectomy (TC) or total proctocolectomy (TP).Investigated timing of germline genetic testing (GGT) and surgical approach in patients (pts) with LS and CRC.

Conclusions: GGT performed pre-surgery for a new diagnosis of CRC was more likely to result in extended procedures, especially in MLH1/MSH2/EPCAM carriers. More data in RC is needed to better understand the influence of GGT on surgical approach.

https://meetings.asco.org/abstracts-presentations/241883

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