IHC test (ImmunoHistoChemistry): The ImmunoHistoChemistry test finds out if there is too much HER2 protein in the cancer cells. The results of the IHC test can be: 0 (negative), 1+ (also negative), 2+ (borderline), or 3+ (positive â HER2 protein overexpression).
Theme is defined as a main idea or an underlying meaning of a literary work that may be stated directly or indirectly. Major and minor themes are two types of themes that appear in literary works. A major theme is an idea that a writer repeats in his work, making it the most significant idea in a literary work. A minor theme, on the other hand, refers to an idea that appears in a work briefly and gives way to another minor theme.
Here are a few pointers to make it easy to understand: 1  A theme is the underlying dominant idea in every written piece, while a motif is a repetition of certain patterns, ideas or images to reinforce the main theme. 2  A theme is broader than a motif. 3  The author uses motifs to highlight the theme of his story.