A biopsy stands for taking one small piece to understand the whole. Dream tradition reads it as a close look at a detail of your life that you suspect says more than it seems — a symbol, not a statement about the body.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.