Correlation between single photon emission computed tomography, AgNOR count, and histomorphologic features in patients with active mandibular condylar hyperplasia.

Purpose: To analyze the association between nuclear medicine examination (single photon emission computed tomography [SPECT]), histology, and Argyrophilic Nuclear Organizer Region (AgNOR) count in patients with active condylar hyperplasia who have undergone condylectomy.

Patients And Methods: Eight patients with a diagnosis of active condylar hyperplasia and evidence of facial asymmetry, with progressive deformation in time and on SPECT studies, were evaluated. The relationship between the rate of technetium Tc 99 intake, cartilage layer thickness, and cellular activity measured by recounting nucleolar organizers with AgNOR was evaluated.