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: In 22 of the 43 non - papillary renal cell carcinomas , abnormally migrating DNA bands were detected by SSCP and / or HD analysis .
### Output Text:
In 22 of the 43 <span class="disease">non - papillary renal cell carcinomas</span> , abnormally migrating DNA bands were detected by SSCP and / or HD analysis . 