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head and neck

This tag is associated with 13 posts

Left Internal Carotid Artery Occlusion

History: 70 year old male with acute onset right hemiparesis and slurred speech.  On this CT angiogram of the neck, the left internal carotid artery appears completely occluded, however, technically complete arterial occlusion can only be diagnosed on conventional catheter angiogram by ruling out a possible “string sign.”  This patient went on to have a … Continue reading

Basilar Invagination

History: 30 year old female with a history of bilateral sensorineural hearing loss.  This is the appearance of basilar invagination, of which the differential includes Paget Disease, Osteomalacia, fibrous dysplasia, achondroplasia, rickets, cleidocranial dysplasia and osteogenesis imperfecta. The diagnosis in this case was osteogenesis imperfecta, which also can cause hearing loss.

Parathyroid Adenoma

History: 50 year old female with a hot nodule on a prior Tc-99m Sestamibi scan and hypercalcemia. Given the history of hypercalcemia and hot nodule on the prior Tc-99m Sestamibi scan, this is compatible with a parathyroid adenoma, which was confirmed at surgery. Hyperparathyroidism was the etiology of the patient’s hypercalcemia.