A Swelling in the Mouth in a Chronic Hemodialysis Patient

Figure 1

(a) View of the patient’s oral cavity. (b) Cross-section through the partial mandibulectomy specimen, showing a well-delineated tumor pushing away the tooth roots. (c) Light microscopy shows a cellular fibrous stroma containing irregular woven bone trabeculae looking like Chinese letters, lined by many swollen osteoblasts, characteristic features of ossifying fibroma.

(a)

(b)

(c)