Transverse Sinus Hypoplasia as a Differential Diagnosis for Cerebral Vein Thrombosis: A Case Report

We present a 43‐year‐old female who had a history of deep vein thrombosis (DVT) and pulmonary emboli and was diagnosed with DVT. The patient reported a headache and underwent an emergency CT scan, which revealed no intracranial hemorrhage (ICH). To evaluate the possibility of CVT, the patient underwent magnetic resonance venography (MRV), which showed a defect in the right transverse sinus. To differentiate between CVT and sinus hypoplasia, MRV with gadolinium contrast was done, which revealed a right hypoplastic transverse sinus. This educational case highlights the importance of detecting hypoplastic transverse sinus from CVT, especially in patients with a possible hypercoagulative state. This differentiation will save patients from unnecessary treatment.