MR imaging of cavernous sinus thrombosis.

•Quantitative & qualitative parameters on CEMRI are essential for diagnosis of CST.•Enlarged sinus, compressed cavernous ICA & dilated SOV should raise a suspicion.•Heterogenous signal intensity of the sinus on plain MRI should prompt evaluation.•Bulging lateral walls with abnormal dural enhancement & filling defects are good predictors.•Filling defects on post contrast images & orbital apex involvement are also seen.