PMC5820862_01
X-ray skull was normal showing no bony lesion or lytic lesion. Inset (upper left) demonstrates the occipital swelling of the case
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F1
Skull X-ray and all the laboratory investigations were normal [Figure 1].
Cytological smear showing cohesive clusters and scattered single meningothelial cells having indistinct cytoplasmic borders, round to oval nuclei and inconspicuous nucleoli. Inset (lower left) exhibits a psammomatous calcification. (Leishman-Giemsa, x400)
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F2
Cytologically, smears were highly cellular, consisting predominantly of cohesive clusters, some seen as small tight whorls and scattered single cells [Figure 2].
Section showing dermal proliferation of spindle-shaped meningothelial cell in whorls and psammoma bodies (H and E, x100)
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F3
Psammoma bodies were noted [Figure 3].
Section showing immunostaining positivity for epithelial membrane antigen in meningothelial cells (x100)
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F4
Immunohistochemical analysis of the tissue was done and was found positive for epithelial membrane antigen (EMA) [Figure 4].