Craniofacial fibrous dysplasia.

Fibrous dysplasia can present clinically in varied forms which may appear as collision of different pathologic processes. We report a rare case of craniofacial fibrous dysplasia with coexisting epithelial lined cyst and superimposed osteomyelitis with sequestrum formation. Its clinical features and management with possible hypotheses are described along with the post operative course. Pertinent literature has been reviewed with emphasis on pathogenesis of this unique occurrence.

Type B idiopathic bone defect of mandible: an etiopathogenic dilemma.

Etiopathogenesis of the pathologic lesions forms the basis for formulation of appropriate intervention and further prevention. There is still a vast unknown field that has to be explored to know the causative reason behind certain benign & malignant lesions. Idiopathic bone defects are nonodontogenic pseudocystic cavities that are seen in the long bones & jaw bones. Radiographic interpretation is at times inadequate in diagnosis of odontogenic & nonodontogenic radiolucent lesions involving jaw bones. Histopathology has different criteria to segregate this lesion. In this paper, we discuss a case of type B histopathological variant of idiopathic bone defect that may suggest an alternative pathogenesis from type A variant.