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: Germline mutations in the 3 ' part of APC exon 15 do not result in truncated proteins and are associated with attenuated adenomatous polyposis coli .
### Output Text:
Germline mutations in the 3 ' part of <span class="disease">APC</span> exon 15 do not result in truncated proteins and are associated with attenuated <span class="disease">adenomatous polyposis coli</span> . 