Good morning, i found a visible lump under my right armpit on the outer side. it is painless and disappears with moving the skin. i am fibrocystic and concerned. when i feel under the armpit with my arms dangling down i don't feel anything. ?

Immediate exam: You should never take a chance with a lump. Although this lump could be from something relatively harmless such as a mild treatable infection, it could also be the beginning stages of a cancerous growth. The sooner a correct diagnosis is made with a visual exam and possible biopsy the better are your chances for a complete cure. Please get examined in a clinic as soon as possible.