Initial-Stage Primary Intraosseous Squamous Cell Carcinoma Derived from Odontogenic Keratocyst with Unusual Keratoameloblastomatous Change of the Maxilla: A Case Report and Literature Discussion

Figure 7

Macroscopic appearance and microscopic features of the additional surgically resected specimen. (a) Resected specimen. (b) Cystic lesion in the palatal side of the second premolar. (c) Microscopically, locally invasive daughter follicles in many bone marrow spaces (arrows). (d) Invasive solid cystic follicles with a KAB-like growth pattern (arrows) (HE; original magnification ×40 (c) and ×200 (d)).

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