In the sentence extracted from biomedical literature, identify all the disease entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="disease"> to denote a disease.

### Input Text: To evaluate this prevalence , we performed biochemical analysis of very long chain fatty acids in 14 male patients ( age ranging from 12 - 45 yr at diagnosis ) previously diagnosed as having primary idiopathic adrenocortical insufficiency .
### Output Text:
To evaluate this prevalence , we performed biochemical analysis of very long chain fatty acids in 14 male patients ( age ranging from 12 - 45 yr at diagnosis ) previously diagnosed as having primary idiopathic <span class="disease">adrenocortical insufficiency</span> . 