Mandibular condylar hyperplasia: Clinical, histopathological, and treatment considerations

Francesca Angiero, Giampietro Farronato, Stefano Benedicenti, Raffaele Vinci, Davide Farronato, Sarah Magistro, Michele Stefani

Research output: Contribution to journalArticlepeer-review


Condylar hyperplasia is a rare disorder characterized by an increased volume of the condyle, ramus, and mandibular body leading to facial asymmetry. We present three cases of condylar hyperplasia: two women and one man, age range 27 to 34. Clinically, all three patients showed a deviation of the mandible to the opposite side and a protruded position of the chin, hypertrophy of the lower border of the mandible, combined with an elongation of the mandibular ramus, open-bite on the deformed side, and cross-bite on the opposite side. In all three cases, scintigraphy showed an increased uptake. Radiography and CT scanning confirmed the clinical diagnosis and patients were subjected to surgery, comprising high condylectomy on the affected side with access in the pre-tragus area. The surgical piece sent to the Institute of Pathological Anatomy for histological examination revealed a nonuniform picture, in terms of both the depth of cartilage islands and the thickness of the fibrous layer covering the joint surface. Common to all three cases, however, was the apparent evolution of fibrous tissue to cartilage, and of this to compact bone tissue. At two-four years, all cases have maintained a good occlusal response. The asymmetric deformity of the mandible resulting from the rare condition of hemimandibular hyperplasia is presented and the clinical, histopathological and therapeutic aspects discussed.

Original languageEnglish
Pages (from-to)24-32
Number of pages9
JournalCranio - Journal of Craniomandibular Practice
Issue number1
Publication statusPublished - Jan 2009

ASJC Scopus subject areas

  • Dentistry(all)
  • Otorhinolaryngology


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