Carcinoma, melanoma sick twins
Inside their innocuous hosts grin
For surface tension brings no chagrin
Another, common diagnosis will time lend
Healthy cell structures to amend
Immune systems with guile befriend
In state of denial, journey begins
Signs not to the human eye hidden
But worry has healthy mind forbidden
Asbestos, carbon dioxide, dioxin
Immune filters will certainly fend
Smoking, over eating, years of gin
Only near life's end wages will append
Per chance through pore seeps pathogen
To rally antibody troops always an antigen
Discolored figment under skin
Bright pigment from allergen
A red rash can dry with benzine
Yellowish splotch need carotene
Brownish bump harmless toxin
Black mole surely genetic origin
Benign cyst lacking needed vitamin
Purplish lesion can cure with Neosporin
Small lump only a gland that's swollen
Goiter rarely takes malignant spin
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