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Retrospective Study
©The Author(s) 2025.
World J Gastroenterol. Oct 14, 2025; 31(38): 110557
Published online Oct 14, 2025. doi: 10.3748/wjg.v31.i38.110557
Table 3 Pathological characteristics of esophageal mucosal tumors with different degrees of differentiation, n (%)

LGIN (n = 71)
HGIN (n = 97)
Early cancer (n = 65)
Superficial cancer (n = 31)
P value
Lesion location0.033
    Upper 1/318 (25.4)b9 (9.3)a10 (15.4)2 (6.5)
    Middle 1/336 (50.7)48 (49.5)34 (52.3)14 (45.2)
    Lower 1/317 (23.9)40 (41.2)21 (32.3)15 (48.4)
Lesion length (cm)< 0.001
    ≤ 246 (64.8)b,c,d25 (25.8)a12 (18.5)a9 (29.0)a
    > 2 and < 522 (31.0)b,c58 (59.8)a37 (56.9)a14 (45.2)
    ≥ 53 (4.2)c,d14 (14.4)16 (24.6)a8 (25.8)a
Circumferential extent< 0.001
    < 1/259 (83.1)b,c,d60 (61.9)a31 (47.7)a17 (54.8)a
    ≥ 1/2 and < 3/412 (16.9)27 (27.8)16 (24.6)3 (9.7)
    ≥ 3/40 (0)b,c,d10 (10.3)a,c,d18 (27.7)a,b11 (35.5)a,b
Invasion depth< 0.001
    M171 (100)c,d97 (100)c,d0 (0)a,b0 (0)a,b
    M20 (0)c0 (0)c36 (55.4)a,b,d1 (3.2)c
    M30 (0)c,d0 (0)c,d29 (44.6)a,b,d5 (16.1)a,b,c
    SM10 (0)d0 (0)d0 (0)d23 (74.2)a,b,c
    SM20 (0)0 (0)0 (0)2 (6.5)
Vertical margin< 0.001
    Positive0 (0)d0 (0)d4 (6.2)5 (16.1)a,b
    Negative71 (100)d97 (100) d61 (93.8)26 (83.9)a,b
Horizontal margin0.001
    Positive0 (0)d5 (5.2)6 (9.2)6 (19.4)a
    Negative71 (100)d92 (94.8)59 (90.8)25 (80.6)a
Lymphatic invasion0.364
    Positive0 (0)0 (0)1 (1.5)0 (0)
    Negative71 (100)97 (100)64 (98.5)31 (100)
Vascular invasion< 0.001
    Positive0 (0)d0 (0)d0 (0)d8 (25.8)a,b,c
    Negative71 (100)d97 (100)d65 (100)d23 (74.2)a,b,c
Multiple lesions17 (23.9)b7 (7.2)a8 (12.3)6 (19.4)0.015
Paris classification0.001
    0-I3 (4.2)0 (0)1 (1.5)0 (0)
    0-IIa4 (5.6)11 (11.3)10 (15.4 )3 (9.7)
    0-IIb59 (83.1)c,d74 (76.3)42 (64.6)a18 (58.1)a
    0-IIc5 (7.0)9 (9.3)6 (9.2)3 (9.7)
Mixed type0 (0)c,d3 (3.1)d7 (10.8)a7 (22.6)a,b


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