A 68-year-old female presents with a four month history of wei | Neurology collections 2020

A 68-year-old female presents with a four month history of weight loss, headaches and had recently developed
double vision.
Six years previously she underwent a right mastectomy for breast carcinoma and remains on treatment with
tamoxifen.
Examination revealed tenderness over the temporal region and a left sixth nerve palsy.
Her chest x ray was reported as normal, but she had an ESR of 100 mm/hr (0-30) and her Hb was 10.8 g/dL
(11.5-16.5).
Which of the following statements is correct?