The remaining 56 nodules (in 22 patients) were found to be of benign etiology acording to the reference standard (20 granulomatous processes for sarcoidosis, 20 hemangiomas, 10 abscesses fungus, eight nodules; bacteria, two nodules), four G-CSF-related myeloid metaplasias, one hamartoma, and one infarction; Table 1). Here, CSF3 is linked to hamartoma.