Characteristics | Brain Metastasis group (n = 18) | Leptomeningial Metastasis group (n = 11) | No Central Nervous System-related metastasis group (n = 31) |
---|---|---|---|
Sex, n [%] | |||
 Male | 14 [78] | 7 [64] | 23 [74] |
 Female | 4 [22] | 4 [36] | 8 [26] |
Median age (years) | 63 [43–77] | 60 [49–67] | 64.5 [44–75] |
Stage, n [%] | |||
 IV | 18 [100] | 11 [100] | 31 [100] |
Histology, n [%] | |||
 Adenocarcinoma | 10 [56] | 11 [100] | 16 [52] |
 Squamous | 4 [22] | 0 | 6 [19] |
 Mixed histology | 4 [22] | 0 | 9 [29] |
Presence of extracranial metastasis, n [%] | |||
 Yes | 5 [28] | 10 [91] | 31 [100] |
 No | 13 [72] | 1 [9] | 0 [0] |
Bone metastasis | |||
 Without | 16 [89] | 2 [18] | 17 [55] |
 With | 2 [11] | 9 [82] | 14 [45] |
Lymph node metastasis | |||
 Without | 18 [100] | 11 [100] | 10 [32] |
 With | 0 [0] | 0 [0] | 21 [68] |
Pleural metastasis | |||
 Without | 17 [94] | 8 [73] | 22 [71] |
 With | 1 [5.6] | 3 [27] | 9 [29] |
Lung metastasis | |||
 Without | 16 [89] | 11 [100] | 20 [65] |
 With | 2 [11] | 0 [0] | 11 [35] |
Liver metastasis | |||
 Without | 17 [94] | 9 [82] | 21 [68] |
 With | 1 [5.6] | 2 [18] | 10 [32] |
Thyroid metastasis | |||
 Without | 17 [94] | 11 [100] | 31 [100] |
 With | 1 [5.6] | 0 [0] | 0 [0] |
Adrenal gland metastasis | |||
 Without | 18 [100] | 9 [82] | 31 [100] |
 With | 0 [0] | 2 [18] | 0 [0] |
Spleen metastasis | |||
 Without | 18 [100] | 10 [91] | 31 [100] |
 With | 0 [0] | 1 [9.1] | 0 [0] |