The pool can be naturally occurring, as in the case of multiple pathogen strains in a blood sample, multiple types of cells in a cancerous tissue sample, or multiple isoforms of mRNA in a cell.
In the case of prostate cancer, a cancerous cell line showed an increase in the amount of both sialic acid and mannose, as compared to normal cells.
In the case of breast cancer, more than 20% of the cancerous tissue may be left behind.
In the case of TFIIS, the non-cancerous MCF10A cell line was dramatically less affected than MCF7 cells.
Examples include the removal of a fallopian tube in the case of an ectopic pregnancy, removal of a pregnant cancerous uterus, or an appendectomy.
In the case of studies involving tumorigenic tissue, the existence of non-cancerous control tissue from the same patient was a requirement.
In the cases of upregulation of claudin expression, the barrier function of the cancerous epithelia changes, as they often display a disorganized arrangement of tight junction strands with increased permeability to paracellular markers.
Only a handful of other studies have assessed multiple genes in paired cases of cancerous and adjacent normal breast tissues.
More frequent is the case of a tumour presenting as a fistula, that is, the fistula being a consequence of the cancerous process, although we have found only two cases of fistula-generating melanomas reported in the literature.
More frequent is the case of a tumour presenting as a fistula, that is, the fistula being a consequence of the cancerous process.
