PMC3485757_01
Hematoxylin and eosin stain (100x) showed aggregates of atypical epithelial cells and associated lymphoid tissue supported by fibrous connective tissue.
CRIM.ONCMED2012-241816.001.jpg
PMC3485757_01_CRIM.ONCMED2012-241816.001.jpg
fig1
The patient underwent surgical excision of the new lesion in his right premaxillary space. The pathology revealed LELCS (Figure 1) with infraorbital nerve invasion and vascular invasion as well as positive superficial, medial and deep margins and an indeterminant lateral margin.
Immunohistochemical staining (100x) positive for CK-5/6.
CRIM.ONCMED2012-241816.002.jpg
PMC3485757_01_CRIM.ONCMED2012-241816.002.jpg
fig2
Immunohistochemical staining was positive for pancytokeratin and CK-5/6 (Figure 2).