1. A computing system comprising: a non-transitory computer readable medium storing one or more software modules including computer executable instructions; and one or more hardware processors in communication with the non-transitory computer readable medium and configured to execute the one or more software modules in order to cause the computing system to: display, on a display of the computing system, a first medical image of a first medical exam, the first medical image including a lesion; in response to one or more inputs, determine a length measurement of the lesion included in the displayed first medical image; in response to determining the length measurement of the lesion, provide a user interface on the display of the computing system including characteristics of lesions that are selectable by a user in order to indicate one or more characteristics of the measured lesion; receive, via the user interface, selection of one or more characteristics; generate an annotation for the lesion based on the length measurement and the one or more selected characteristics; associate an index with the lesion and the generated annotation, the index enabling association of at least one of other length measurements or annotations related to the lesion in at least a second medical image of a second medical exam with at least one of the length measurement or the annotation of the lesion in the first medical image; display, on the display of the computing system, the second medical image of the second medical exam; determine a location of the length measurement of the lesion included in the displayed first medical image; and automatically position an adjustable measurement indicator at a location in the displayed second medical image corresponding to the location of the length measurement of the lesion included in the displayed first medical image.