[Is endoscopic ultrasound-guided fine needle aspiration of mesorectal lymph nodes infallible for the locoregional staging of rectal cancer? Report of a false-positive case].
The authors report a case of false-positive ultrasound-guided fine needle aspiration in the initial staging of a rectal cancer. A 46 year-old patient presented with a middle third tumor of the rectum staged T2-T3 by MRI and endorectal ultrasonography. Ultrasound-guided fine needle aspiration of mesorectal nodes showed adenocarcinomatous cells. A subtotal proctectomy was performed without neoadjuvant treatment. Histological report showed a well differentiated adenocarcinoma pT2pN0 (42 examined lymph nodes). The authors discuss the different hypothesis to explain the discordance between preoperative staging and definitive histological results.
Colombo
P-E
PE
Département de chirurgie oncologique, CRLC Val d'Aurelle, 208, rue des Apothicaires, 34298 Montpellier cedex 5, France. pe.colombo@free.fr
Assenat
E
E
Bertrand
M-M
MM
Senesse
P
P
Bibeau
F
F
Rouanet
P
P
D044963:Biopsy, Fine-Needle / Q000379:methods; D005189:False Positive Reactions; D006801:Humans; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D015203:Reproducibility of Results; D014463:Ultrasonography