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Rare disease
Masseter and medial pterygoid muscle hypertrophy
  1. Guruprasad R1,
  2. Sudhirkumar Rishi2,
  3. Preeti P Nair1,
  4. Shaji Thomas3
  1. 1Department of Oral Medicine and Radiology, People’s College of Dental Sciences & Research Centre, Bhopal, Madhya Pradesh, India
  2. 2Department of Oral Medicine and Radiology, Adesh Institute of Dental Sciences & Research centre, Bhatinda, Punjab, India
  3. 3Department of Oral and Maxillofacial Surgery, People’s College of Dental Sciences and Research Centre, Bhopal, Madhya Pradesh, India
  1. Correspondence to Professor Preeti P Nair, shajihoss{at}gmail.com

Summary

Hypertrophy refers to an enlargement caused by an increase in the size but not in the number of cells. Generalised masticatory muscle hypertrophy may affect the temporalis muscle, masseters and medial pterygoids in a variety of combinations. Masseteric hypertrophy may present as either unilateral or bilateral painless swelling of unknown origin in the region of angle of mandible. It is a relatively rare condition and presents a diagnostic dilemma. While the history and clinical examination are important in differentiating this benign condition from parotid or dental pathology, they cannot necessarily exclude rare malignant lesion within the muscle. Advanced imaging modalities like CT and MRI are essential to confirm the diagnosis. Here the authors are reporting a unique case of masseter muscle hypertrophy along with medial pterygoid hypertrophy which was missed clinically but confirmed using CT and MRI.

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Footnotes

  • Competing interests None.

  • Patient consent Obtained.

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