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Table 2 Tumor characteristics

From: Impact of peritumoral brain edema on pre- and postoperative clinical conditions and on long-term outcomes in patients with intracranial meningiomas

 

All patients

No. (%)

No edema

No. (%)

Edema < 51.95 cm3

No. (%)

Edema ≥ 51.95 cm3

No. (%)

p value

Tumor side

    

0.285

 Right

312 (44.8)

165 (45.6)

89 (43.0)

58 (45.7)

 

 Left

308 (44.3)

160 (44.2)

99 (47.8)

49 (38.6)

 

 Both

76 (10.9)

37 (10.2)

19 (9.2)

20 (15.7)

 

Tumor site

     

 Convexity

202 (29)

82 (22.7)

74 (35.7)

46 (36.2)

< 0.001

 Falx/parasagittal

107 (15.4)

36 (9.9)

50 (24.2)

21 (16.5)

< 0.001

 Sphenoid wing medial

98 (14.1)

55 (15.2)

23 (11.1)

20 (15.7)

0.318

 Sphenoid wing lateral

35 (5)

15 (4.1)

6 (2.9)

14 (11)

NK*

 Cavernous sinus

19 (2.7)

17 (4.7)

2 (1)

–

NK*

 Tuberculum sellae

50 (7.2)

44 (12.2)

4 (1.9)

2 (1.6)

< 0.001

 Olfactory groove meningiomas

35 (5)

6 (1.7)

13 (6.3)

16 (12.6)

NK*

 Tentorium

41 (5.9)

23 (6.4)

14 (6.8)

4 (3.1)

NK*

 Intraventricular

9 (1.3)

3 (0.8)

4 (1.9)

2 (1.6)

NK*

 Orbital

16 (2.3)

15 (4.1)

1 (0.5)

–

NK*

 Petroclival

37 (5.3)

31 (8.6)

6 (2.9)

–

NK*

 Cerebellopontine angle

35 (5)

29 (8)

6 (2.9)

–

NK*

 Cerebellum convexity

4 (0.6)

1 (0.3)

2 (1)

1 (0.8)

NK*

 Foramen magnum

2 (0.3)

–

2 (1)

–

NK*

 Clivus

2 (0.3)

2 (0.5)

–

–

NK*

 NK

3 (0.4)

2 (0.5)

–

1 (0.8)

 

Tumor volume (median (IQR))

13.95 (4.53–38.35)

5.26 (2.39–11.70)

27.10 (13.75–49.15)

43.30 (22.55–75.55)

< 0.001

 NK

24 (3.4)

24 (6.6)

–

–

 

Tumor characteristics

     

 Tumor margin

    

< 0.001

  Regular

290 (41.7)

230 (63.5)

45 (21.7)

15 (11.8)

 

  Irregular

390 (56)

119 (32.9)

159 (76.8)

112 (88.2)

 

  NK

16 (2.3)

13 (3.6)

3 (1.4)

–

 

 Peritumor rim

    

< 0.001

  Present

144 (20.7)

120 (33.1)

20 (9.7)

4 (3.1)

 

  Absent

511 (73.4)

216 (59.7)

178 (86)

117 (92.1)

 

  NK

41 (5.9)

26 (7.2)

9 (4.3)

6 (4.7)

 

 Signal intensity on T2-weighted imaging

    

0.003

  Hypointense

52 (7.5)

31 (8.6)

14 (6.8)

7 (5.5)

 

  Isointense

424 (60.9)

238 (65.7)

117 (56.5)

69 (54.3)

 

  Hyperintense

135 (19.4)

49 (13.5)

49 (23.7)

37 (29.1)

 

  Mixed**

41 (5.9)

19 (5.2)

15 (7.2)

7 (5.5)

 

  NK

44 (6.3)

25 (6.9)

12 (5.8)

7 (5.5)

 

 Tumor enhancement

    

< 0.001

  Homogenous

439 (63.1)

262 (72.4)

118 (57)

59 (46.5)

 

  Heterogenous

234 (33.6)

83 (22.9)

85 (41.1)

66 (52)

 

  NK

23 (3.3)

17 (4.7)

4 (1.9)

2 (1.6)

 

 Tumor blood supply

    

< 0.001

  Meningeal

271 (38.9)

233 (64.4)

32 (15.5)

6 (4.7)

 

  Meningeal and pial

371 (53.3)

102 (28.2)

155 (74.9)

114 (89.8)

 

  Pial

15 (2.2)

7 (1.9)

6 (2.9)

2 (1.6)

 

  NK

39 (5.6)

20 (5.5)

14 (6.7)

5 (3.9)

 
  1. Variables with significant differences between the three groups are highlighted in bold
  2. No. number, NK not known, IQR interquartile range, p value p value for differences between the three groups (without and with edema) (Fisher’s exact test for categorical variables, Kruskal–Wallis test for continuous variables)
  3. *Dichotomous variables with less than 50 occurrences in one of the categories in all patients were not tested for differences between the three groups (without and with edema)
  4. **Tumors with extensive signal differences
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European Journal of Medical Research

ISSN: 2047-783X

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