Table 1.

Clinicopathologic characteristics of patients with multiple and solitary colorectal carcinomas

M-CRNs (n = 57)S-CRCs (n = 69)
Gender
    Male14 (50%)42 (61%)
    Female14 (50%)26 (38%)
    Missing data01 (2%)
Mean age
    (y)68.063.6
    (range)(29-90)(32-86)
Location
    Distal22 (39%)33 (48%)
    Proximal33 (58%)29 (42%)
    Missing data2 (3%)7 (10%)
Stage
    Adenoma*13 (23%)NA
    Cancers
    I-II23 (40%)28 (41%)
    III-IV21 (37%)39 (57%)
    Missing data02 (2%)
Histology
    Cancer/cancer16 (57%)
    Cancer/adenoma*12 (43%)NA
    Missing data0
Number of tumors
    Two27 (96%)NA
    Three1 (4%)

Abbreviations: CRNs, colorectal neoplasias; distal, descending and sigmoid colon and rectum; proximal, cecum, ascending, and transverse colon; NA, not applicable.

  • *All adenomas showed advanced histology (size of all lesions was >10 mm and histologic findings showed-high grade dysplasias and/or villous histology).