A 59-year-old man complained of a 1-year history of progressively worsening headaches. Neurologic examination was normal. His skin had multiple hyperkeratotic papules and bluish, nodular skin lesions. The patient’s mother and maternal grandfather had similar cutaneous lesions, but they had never undergone brain imaging. MRI was obtained. Panel A: T2 weighted, fast-field echo image.

Panel B: Blood oxygenation level-dependent image. What is your most likely diagnosis for this patient? Source : NEJM ##Disclaimer## The content provided on Docplexus is intended for educational purposes only. While we strive to ensure its accuracy, we make no warranties, explicit or implied, about the suitability, reliability, or adequacy of the information, including data visualization elements and graphics. We do not endorse any medical treatment, product, ideas or service, including the content from our…