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Table 1 Distribution of histological categories in the benign lesions

From: Three uncommon adrenal incidentalomas: a 13-year surgical pathology review

Histological category Number of cases Percentage of benign lesions Percentage of total lesions
Adenoma 31 43.1% 33.0%
Chronic inflammation 2 2.8% 2.1%
Fibrosis and hemorrhage 6 8.3% 6.4%
Ganglioneuroblastoma 1 1.4% 1.1%
Ganglioneuroma 1 1.4% 1.1%
Hyperplasia 4 5.6% 4.3%
Lipoma 1 1.4% 1.1%
Schwannoma 1 1.4% 1.1%
Pheochromocytoma 21 29.3% 22.3%
Cyst 4 5.6% 4.3%
Total 72 100% 76.6%