Can Endorectal Ultrasound, MRI, and Mucosa Integrity Accurately Predict the Complete Response for Mid-Low Rectal Cancer After Preoperative Chemoradiation? A Prospective Observational Study from a Single Medical Center.

Background: Patients with locally advanced rectal cancer could be managed by a watch-and-wait approach if they achieve clinical complete response after preoperative chemoradiotherapy. Mucosal integrity, endorectal ultrasound, and rectal MRI are used to evaluate clinical complete response; however, the accuracy remains questionable. Clinical practice based on those assessment methods needs more data and discussion.

Resection of multiple rectal carcinoids with transanal endoscopic microsurgery: case report.

Multiple rectal carcinoids are rare. Due to the unreliability of endoscopic polypectomy in treating these submucosal lesions, a laparotomy is usually performed. We present a case report on multiple rectal carcinoids with three carcinoid foci<10 mm in diameter located in the mid-rectum.

[Impact of neoadjuvant therapy on lymph nodes retrieval in locally advanced mid-low rectal carcinoma].

Objective: To study the impact of neoadjuvant therapy on lymph nodes retrieval in locally advanced mid-low rectal carcinoma.

Methods: Data collected from 120 patients with locally advanced mid-low rectal cancer (T2-4 and/or N1-2M0) treated from January 2005 to June 2008 was investigated. The patients were divided into two groups: the study group (n=54) was treated with neoadjuvant therapy (preoperative radiation with a total dosage of 50 Gy and synchronous 5-Fu-based chemotherapy) followed by radical tumor resection 4-6 weeks after;the control group (n=66) underwent primary surgery without neoadjuvant therapy.

Color Doppler ultrasonography appearances of renal vein thrombosis and its diagnostic value.

Objective: To evaluate color Doppler ultrasonography (CDU) appearances of renal vein thrombosis (RVT) and its diagnostic value.

Methods: Ten patients with RVT were analyzed retrospectively. Renal structure, distributions of intrarenal flow signals, echogenicity, and flow fullness in main renal veins were observed with CDU.