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Table 1 Rates of lymph node metastasis in early-staged clear cell carcinoma and serous adenocarcinoma

From: Clear cell carcinoma of the ovary: Is there a role of histology-specific treatment?

author year number of patients pT stage metastatic rate
clear cell carcinoma
Di Re[2] 1989 11 pT1 9% (1/11)
Petru[3] 1994 2 pT1 0% (0/2)
Onda[4] 1996 16 pT1/2 31% (5/16)
Baiocchi[5] 1998 21 pT1 5% (1/21)
Suzuki[6] 2000 9 pT1 11% (1/9)
Sakuragi[7] 2000 23 pT1/2 17% (4/23)
Negishi[8] 2004 46 pT1 12% (5/42)
pT2 75% (3/4)
Takano[9] 2006 173 pT1a 9% (3/36)
pT1c 7% (7/99)
pT2 13%(5/38)
Harter[10] 2007 7 pT1 0% (0/7)
Desteli[11] 2010 4 pT1 0% (0/4)
Nomura[12] 2010 36 pT1/2 6% (2/36)
Subtotal   348   11%(37/348)
Serous cystadenocarcinoma
Di Re[2] 1989 40 pT1 28% (11/40)
Petru[3] 1994 21 pT1 38% (8/21)
Onda[4] 1996 21 pT1/2 33% (7/21)
Baiocchi[5] 1998 106 pT1 26% (27/106)
Suzuki[6] 2000 13 pT1 31% (4/13)
Sakuragi[7] 2000 25 pT1/2 8% (2/25)
Morice[13] 2003 26 pT1 31% (8/26)
Negishi[8] 2004 35 pT1 4% (1/24)
pT2 36% (4/11)
Harter[10] 2007 13 pT1 15% (2/13)
Desteli[11] 2010 7 pT1 14% (1/7)
Nomura[12] 2010 12 pT1/2 50% (6/12)
Subtotal   319   25%(81/319)