Respiratory Epithelium Lined Cyst of the Maxilla: Differential Diagnosis

Figure 2

Histological aspect of radicular cyst: (a) cystic cavity containing hemorrhagic exudate and neutrophils lined exclusively by ciliated pseudostratified columnar epithelium. The wall of the cyst consists of fibrous connective tissue with an intense chronic inflammatory infiltrate. (HES, ×6.4). (b) High magnification showing the ciliated pseudostratified columnar epithelium and inflammatory infiltrate represented by lymphocytes, plasma cells, and some neutrophils (HES, ×60).

(a)

(b)