[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.
Département de chirurgie oncologique, CRLC Val d'Aurelle, 208, rue des Apothicaires, 34298 Montpellier cedex 5, France. pe.colombo@free.fr
P-E
PE
Colombo
E
E
Assenat
M-M
MM
Bertrand
P
P
Senesse
F
F
Bibeau
P
P
Rouanet
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