[Clinicopathological features and prognostic analysis of esophageal sarcomatoid carcinoma].

Objective: To analyze the clinicopathological characteristics and prognosis of a rare histological type of esophageal cancer-sarcomatoid carcinoma.

Methods: Clinicopathological data of 31 patients with esophageal sarcomatoid carcinoma who underwent surgery in the Department of Thoracic Surgery of Zhejiang Cancer Hospital from Jan 2000 to Dec 2009 were collected and analyzed. The survival analysis was performed using Kaplan-Meier method.

[Analysis of prognostic factors in patients with cervical squamous cell carcinoma of stage Ib and IIa].

Objective: To analyze the prognostic factors in patients with cervical squamous cell carcinoma of stage Ib and IIa treated by surgery, and to investigate their guide roles in available post-operation adjuvant therapy.

Methods: The clinicopathologic records of 306 patients with cervical squamous cell carcinoma of stage Ib and IIa who underwent radical hysterectomy and pelvic lymphadenectomy were retrospectively analyzed, and the prognostic factors were explored by univariate and multivariate methods. Independent prognostic factors were identified by COX proportional hazards regression model.

[Clinicopathological and immunohistochemical analysis of gastrointestinal, urinary and perineal stromal tumors].

Objective: To study the histogenesis and pathological characteristics of gastrointestinal stromal tumors (GIST) and GIST type stromal tumor (ST) beyond the gastrointestinal tract.

Methods: A retrospective study was carried out on leiomyoma, leiomyosarcoma and neurilemoma (46 cases in gastrointestinal tract and l3 cases in urinary tract and perineal area). 4 antibodies (CD117, CD34, SMA, S-100) were used for immunohistochemical staining.