1. A method for distinguishing between specific subtypes of lung cancer in a subject in need, the method comprising: obtaining a biological sample from said subject; determining an expression profile of at least one nucleic acid sequence selected from the group consisting of SEQ ID NOS: 1-8; a fragment thereof and a sequence having at least about 80% identity thereto in said sample; and comparing said expression profile to a reference expression profile; wherein the comparison of said expression profile to said reference expression profile is indicative of said lung cancer.