PMC5795731_01
(a-c) Photomicrograph of cytology of basal cell adenoma exhibiting clusters and cords of basaloid cells with variable amount basement membrane like stromal material and palisading of tumor cells at periphery and also in the basement membrane material (a: Leishman and Giemsa stain, x40 b-c: H and E stain, x40). (d) Photomicrograph showing histology of basal cell adenoma, the tumor was composed of bland basaloid cells separated by many abundant amorphous hyaline membranous stroma (H and E stain, x100)
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F1
The smears were cellular and comprised clusters and sheets of basaloid cells around hyaline globules and acellular dense hyaline material [Figure 1a and b]. Ribbon of basement membrane material and palisading of tumor cells at the periphery were present in some clusters [Figure 1a-c]. On histology, the tumor composed basaloid cells separated by amorphous hyaline membranous stroma [Figure 1d]. Histopathology was diagnosed as basal cell adenoma in a predominantly membranous pattern [Figure 1d].