Figure 2. a–d.

A 45-year-old female without history of smoking. SPN at left lung, upper lobe, inferior lingular segment (arrows). Axial TIWI image (a).The LSR₅₀₀ and LSR₁₀₀₀ values are 0.69 and 0.82, consequently on axial DWIs (b,c). The ADC value is 0.73 mm²/s (d). Histopathological diagnosis is squamous cell carcinoma

LSR: lesion spinal cord ratio; SPN: solitary pulmonary nodule