When found in the lungs, tram tracks are radiologic signs that are usually accompanied by pulmonary edema in cases of congestive heart failure and bronchiectasis.
Tram tracks are caused by bronchial wall thickening, and can be detected on a lateral chest X-ray.
[1] The term "tram tracks" is also used to describe the basement membrane duplication found on light microscopy that is characteristic of membranoproliferative glomerulonephritis (MPGN) type I.
)[2] The term has also been used to describe findings associated with optic nerve sheath meningioma.
[citation needed] where intracranial gyriform calcification (brain imaging) seen mostly in occipital and posterior parietal/temporal lobe ;this syndrome consists triad of port wine stain,seizure(usually focal but may become generalized),eye manifestation(e.g. glaucoma).