Diagnosis and treatment experience of rectal carcinoid (a report of 312 cases)

Objective To explore the diagnosis of rectal carcinoid tumors and to adopt the best method of treatment. Patients and methods A group of 312 cases of pathologically confirmed rectal carcinoid were analyzed retrospectively. Data were obtained retrospectively from a database of all colorectal malignancies at Qilu Hospital from January 2004 to December 2012. 4072 colorectal malignant tumors and 312 rectal carcinoid tumors were diagnosed. Endoscopic resection was performed on 44 patients, while the other 248 underwent anus partial extended radical polypectomy. We evaluated the clinical manifestations, diagnosis, treatment and follow-ups regarding carcinoids and the relation between tumor diameter and the rate of recurrence or metastasis after surgery. Results There is no recurrence or metastasis after the transanal local resection in 284 cases with the tumor diameter less than 2 cm, 6 months to 7 years' follow-up. While, in 12 cases with the tumor diameter more than 2 cm radical surgery was performed, 8 cases had liver metastases at the time of the diagnosis of rectal carcinoid, 4 cases had no recurrence or metastasis after two and a half years' of follow ups, there is no recurrence or metastasis in 4 cases of multiple rectal carcinoids, whom all underwent radical surgery, follow ups continued for 2 years. Conclusion Early diagnosis and treatment is important for rectal carcinoids, local resection is a simple, safe and effective treatment for carcinoids with a tumor diameter less than 2 cm.