Test Yourself: Question

Hard scalp lump with headache

A 53-year-old woman presented with a left-sided hard scalp lump of about 1 year duration; it had gradually increased in size and was associated with recurrent mild headache. There was no history of trauma, and the medical history was unremarkable. There were no neurological deficits (Figs. 1, 2 and 3).

Fig. 1
figure 1

CT of the head (axial sections). a Brain window. b Bone window

Fig. 2
figure 2

MRI of the brain. a Axial T1-weighted image. b Axial T2-weighted image

Fig. 3
figure 3

Histopathological photomicrographs (hematoxylin and eosin stain). a Low power view (×20). b Higher power view (×40)