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: Using reverse transcriptase combined with polymerase chain reactions in the analysis of a number of lipoma cell lines and primary lipomas , it appeared that LPP is frequently rearranged also in cases without a cytogenetically detectable involvement of 3q27 - q28 .
### Output Text:
Using reverse transcriptase combined with polymerase chain reactions in the analysis of a number of <span class="disease">lipoma</span> cell lines and <span class="disease">primary lipomas</span> , it appeared that LPP is frequently rearranged also in cases without a cytogenetically detectable involvement of 3q27 - q28 . 