septal lines

sep·tal lines

radiographic images of thickened interlobular septa, most often along the lateral border of lung, extending to pleura; Kerley A and B lines; usually caused by septal edema and fibrosis, also carcinomatosis.
References in periodicals archive ?
On the contrary, in antibiotic-induced pneumonitis, predominant radiographic findings were patchy ground-glass opacities with centrilobular opacities and interlobular septal lines.
Also, reticulations and septal lines can occasionally be seen on chest radiograph.
Recognition of septal lines (usually central Kerley A lines rather than Kerley B lines) is key to the diagnosis.