PMC6138846_01
a-d: Computed tomography (CT) scan of the lesion.. a: CT scan shows intact left parietal bone and skin, b: left mass destructing the temporal bone. c: the mass is larger and more destructive, with intact external auditory canal, d: the mass destructing temporal and occipital bones.
gr1.jpg
PMC6138846_01_gr1.jpg
fig0005
Computed tomography (CT) scan was done on 27 October 2017, and it revealed a large destructive mass lesion involving temporal and occipital bones, and extending to left side of the base of scalp (Fig. 1).
a-d: Histopathological pictures.. a: Low Power, Panoramic view shows pink fibrous tissue with islands of the tumor. b: High power showing well-formed clear cell membranes with empty cytoplasm and dark nucleus. c: CK 5/6 stains the cytoplasm indicating squamous cell carcinoma. d: P63 immunohistochemistry stain. The nucleus is stained indicating squamous cell carcinoma.
gr2.jpg
PMC6138846_01_gr2.jpg
fig0010
On immunohistochemistry, the carcinoma was positive for CK5/6, EMA (E29), P63 (4A4) and CK7 (Fig. 2).