Simplified Preoperative Assessment for Appendix Tumor Score

**Semantic type:** Intellectual Product

**Definition:** A set of imaging criteria, based on preoperative CT scans, used to predict the likelihood for complete cytoreduction in patients with low-grade mucinous adenocarcinoma (LGMA) of the appendix. A score is determined by the presence of scalloping at 4 anatomic sites and the absence or presence of mesenteric foreshortening of the small bowel. A score under 3 is a significant predictor for complete cytoreduction.

**Synonyms:** - SPAAT - SPAAT Score