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Table 2 Characteristics of atypical endometriosis with ovarian malignancy (N = 12)

From: Association between atypical endometriosis and ovarian malignancies in the real world

Category Number
Age (years, range) 36.3 ± 5.2 (29 ~ 46)
Parity (range) 0.8 ± 1.0 (0 ~ 2)
Tumor size (cm, range) 8.8 ± 3.1 (1.2 ~ 15)
Tumor marker (U/mL)
 CA-125 122.9 ± 113.1
 CA-19–9 43.8 ± 65.3
Location of atypical endometriosis
 Right ovary 6
 Left ovary 6
Histopathology
 Borderline malignancy (n = 3) Mucinous (n = 2), Seromucinous (n = 1)
 Invasive carcinoma (n = 9)
  Clear cell carcinoma (5) Stage Ic
  Endometrioid adenocarcinoma (2) Stage Ib, Ic
  Mixed (clear cell + endometrioid) (1) Stage IIb
  Seromucinous carcinoma (1) Stage IIb