Adrenal tumours in Chinese.

Patients with adrenal tumours were identified (n = 412). Among them, 43% (176 patients) had primary and 57% (236 patients) had secondary tumours. Of the primary tumours, 71% were adenomas, but adrenal cortical carcinoma 6.8% (12 cases), phaeochromocytoma 9.7% (17 cases), neuroblastoma 6.2% (11 cases), ganglioneuroma 1.1% (2 cases) and myelolipoma 4% (7 cases) were also seen. Rare tumours like lipoma and haemangioma were also found. Most of the metastatic tumours were carcinomas (88.2%), mainly from lung (33.2%), stomach (15.9%) and oesophagus (17.3%).