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 previous studies , it has been shown that the high mobility group ( HMG ) protein gene HMGIC at 12q15 is consistently rearranged as a consequence of these translocations .
### Output Text:
In previous studies , it has been shown that the high mobility group ( HMG ) protein gene HMGIC at 12q15 is consistently rearranged as a consequence of these translocations . 