1. A computer-implemented method for processing medical reports, comprising: using a processor, executing computer-readable instructions stored in non-transitory commuter-readable media to perform the steps of: a) segmenting at least parts of textual contents of a medical report into information units by applying natural language processing methods; b) classifying particular information units into either a pathological context class or a non-pathological context class using a context-free grammar specifying language construction rules within a specific medical domain, wherein the language construction rules are configured to classify each particular information unit as either a pathological finding or a non-pathological finding based on at least one of: a structure of a sentence defined by the particular information unit; a structure of a sentence fragment defined by the particular information unit; a number of words defined by the particular information unit; and the presence of negations in the particular information unit; and c) annotating the medical report by assigning at least one of said information units to at least one context meta-information determined by said context class.