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Table 2 Histopathological diagnosis of 669 patients with sacral benign tumors and tumor-like lesions

From: Epidemiological characteristics of 1385 primary sacral tumors in one institution in China

Primary benign tumor No.(percentage) in BT/TLL No.(percentage) in all patients
Giant cell tumor 205 (30.6%) 205 (14.8%)
Neurofibroma 155 (23.2%) 155 (11.2%)
Schwannoma 119 (17.8%) 119 (8.6%)
Tuberculosis 24 (3.6%) 24 (1.7%)
Teratoma 23 (3.4%) 23 (1.7%)
Sacral canal cysts 22 (3.3%) 22 (1.6%)
Epidermoid cyst 21 (3.1%) 21 (1.5%)
Hemangioma 14 (2.1%) 14 (1.0%)
Meningeal cysts 13 (1.9%) 13 (0.9%)
Primary aneurysmal bone cyst 12 (1.8%) 12 (0.9%)
Fibrous dysplasia 9 (1.3%) 9 (0.6%)
Osteoblastoma 9 (1.3%) 9 (0.6%)
Eosinophilic granuloma 7 (1.0%) 7 (0.5%)
Simple bone cyst 5 (0.7%) 5 (0.4%)
Spinal meningioma 5 (0.7%) 5 (0.4%)
Gut-tail cyst 4 (0.6%) 4 (0.3%)
Benign fibrous histiocytoma 4 (0.6%) 4 (0.3%)
Fibromatosis 3 (0.4%) 3 (0.2%)
Diffuse giant cell tumor of tendon sheath 3 (0.4%) 3 (0.2%)
Chondroblastoma 3 (0.4%) 3 (0.2%)
Lipoma 2 (0.3%) 2 (0.1%)
Phosphouria stromal tumor 2 (0.3%) 2 (0.1%)
Osteoidosteoma 2 (0.3%) 2 (0.1%)
Leiomyoma 1 (0.1%) 1 (0.07%)
Paget disease 1 (0.1%) 1 (0.07%)
Osteochondroma 1 (0.1%) 1 (0.07%)
  1. BT/TLL benign tumor and tumor-like lesions