Uterine serous carcinoma (USC) has a propensity for extrauterine spread, and some suggest that this disease be staged as an ovarian cancer, and thus include omental sampling. However, given the primary organ involved, the staging recommendations do not include omental sampling. The aim of this study is to evaluate the role of omental sampling during the surgical staging of USC. We retrospectively identified cases of USC at our institution from January 1990 to June 2000 and abstracted surgical procedures, stage, and sites of metastasis. Fisher's exact test was used to calculate sensitivity, specificity, and positive and negative predictive value. We identified 65 women with USC, of which 52 underwent omental evaluation. Thirty four of the omentums were visually normal and benign on histologic review. Two were visually negative and histologically positive for metastatic serous carcinoma. The remaining 16 specimens were grossly involved with histologic confirmation of disease. The sensitivity of a visually negative omentum is 0.89 (P < 0.0001). Microscopic omental metastasis from USC is rare. When the omentum is involved, thereby upstaging the patient to stage IVB disease, the disease is generally diagnosed by gross visualization. We conclude that omental sampling does not need to be included in the routine surgical staging of USC.
- uterine serous carcinoma
- surgical staging
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