lass='label'>Fig. 1.</div> <div class='caption'> <p>Magnetic resonance imaging (MRI) findings. (A) Initial MRI scan shows a 6.2-cm large cystic mass in the left frontoparietal lobe (May 2007). First craniotomy and tumor removal was done. (B) An increase in the extent of the recurred tumor and surrounding peritumoral edema at the superior-lateral side of the postoperative defect was noted on several follow-up MRI scans (November 2007). (C) Clinical leptomeningeal seeding was first detected via MRI, which also shows a new ill-defined lesion with contrast enhancement in the left parietal lobe (July 2010). (D) Extracranial scalp metastasis was suspected clinically. It was detected via MRI (November 2013) and showed focal nodular enhancing lesion overlying the left temporalis muscle.</p> <

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Fig. 1.

Magnetic resonance imaging (MRI) findings. (A) Initial MRI scan shows a 6.2-cm large cystic mass in the left frontoparietal lobe (May 2007). First craniotomy and tumor removal was done. (B) An increase in the extent of the recurred tumor and surrounding peritumoral edema at the superior-lateral side of the postoperative defect was noted on several follow-up MRI scans (November 2007). (C) Clinical leptomeningeal seeding was first detected via MRI, which also shows a new ill-defined lesion with contrast enhancement in the left parietal lobe (July 2010). (D) Extracranial scalp metastasis was suspected clinically. It was detected via MRI (November 2013) and showed focal nodular enhancing lesion overlying the left temporalis muscle.