PMC5286743_01
A slow-growing nodule near the right corner of the mouth with 1.8 cm in diameter, brownish-black with pearl white translucent rim surrounding it. There was the evidence of foci of erythema along the margin of the tumor
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F1
The lesion had a pearl white rim surrounding it [Figure 1].
An excision of the nodule was done under local anesthesia
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F2
An excision of the nodule was done under local anesthesia [Figure 2].
Three months follow-up of the patient revealed the scar tissue
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F3
Three-month follow-up of the patient revealed the scar tissue [Figure 3].
(a) Histopathological examination of the H and E-stained sections revealed a tumor mass which is chiefly consisting of tumor lobes and lobules of basaloid cells which is in connection to the overlying epidermis (x10) (b) the cells were arranged in a typical adenoid and lace-like pattern. The tumor cells show differentiation in the form of tubular and glandular structure (x10) (c) figure depicts high power view of the same ductulara and glandular structures (x40) (d) retraction space was seen around few tumor nests. Palisading was noted at the periphery of many nests and islands. A variable inflammatory infiltrate was present in the section (x40)
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F4
Histopathological examination of the H and E-stained section revealed a tumor mass which was chiefly consisting of lobes and lobules of basaloid cells which were in connection to the overlying epidermis [Figure 4a]. The tumor cells showed differentiation in the form of tubular and glandular structures [Figure 4b]. Figure 4c depicts high power view of the same ductular and glandular structures. Retraction spaces were seen around few tumor nests, palisading was noted at the periphery of many nests and islands [Figure 4d].