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Table 2 Interval of metachronous ovarian metastasis and differentiation of tumors of the 177 patients

From: Ovarian metastasis from nongynecologic primary sites: a retrospective analysis of 177 cases and 13-year experience

  Colorectum
(n = 68)
Stomach
(n = 61)
Appendix
(n = 12)
Biliary Tract
(n = 7)
Pancreas
(n = 7)
Breast
(n = 6)
Small intestine
(n = 5)
Lung
(n = 3)
Bladder
(n = 2)
Unknowna
(n = 6)
Chronological sequence
Synchronous
40 (58.8%) 30 (49.2%) 10 (83.3%) 2 (28.6%) 4 (57.1%) 2 (40.0%) 1 (33.3%) 1 (50.0%) 6 (100.0%)
Metachronous 28 (41.2%) 31 (50.8%) 2 (16.7%) 5 (71.4%) 3 (42.9%) 6 (100.0%) 3 (60.0%) 2 (66.7%) 1 (50.0%)
Median intervalb
(range, months)
12.5 (2–40) 20 (1.5–240) 95, 95 51 (12–73) 112 (19–115) 54 (7–81) 18 (12–34) 4, 48 135
Differentiation
Well
10 (14.7%) 4 (33.3%) 3 (42.9%)
Moderate 42 (61.8%) 6 (9.8%) 4 (33.3%) 3 (42.9%) 2 (28.6%) 2 (40.0%) 1 (50.0%) 2 (33.3%)
Poor/undifferentiated 16 (23.5%) 52 (85.2%) 4 (33.3%) 1 (14.3%) 1 (14.3%) 5 (83.3%) 3 (60.0%) 3 (100.0%) 0 (0%) 2 (33.3%)
Not available 0 (0%) 3 (4.9%) 3 (42.9%) 1 (14.3%) 1 (16.7%) 1 (50.0%) 2 (33.3%)
  1. a The patients had neither pathology nor diagnostic imaging examinations to identify the primary cancers who were classified as the group of unknown primary sites
  2. b If the number of cases is less than 3, then the intervals are listed.