PMC156026_01
OPG of the mandible showing the lytic lesion in the body and ramus of the mandible.
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F1
Panoramic radiograph of the mandible revealed an irregular, lobulated, expansile osteolytic lesion 5 cm in size, extending from the mesial aspect of the 2nd molar to the ramus and coronoid process posteriorly (Figure 1).
Mucoepidermoid carcinoma, mandible. Cystic spaces (C) and nests of neoplastic squamous (N) cells along with bone spicules at the periphery (B). (H&E x 50)
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F2
Microscopic examination revealed a neoplasm composed predominantly of cystic spaces and an epidermoid component in a fibrous stroma (Figure 2).
Mucoepidermoid carcinoma. Cystic spaces lined by mucous secreting cells (M) and intermediate cells (I). (H&E x 400).
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F3
The cystic spaces were of varying sizes, lined by mucous secreting cells and cells of intermediate type (figure 3).
Mucoepidermoid carcinoma. Nest of neoplastic squamous cells (N) along with cystic spaces. (H&E x 400).
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F4
Mucinous material was seen within the cystic spaces and extravasating into the stroma (Figure 4).