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Bilateral accessory digastric muscles.

M R Norton1

  • 1London Hospital Medical College Dental Institute.

The British Journal of Oral & Maxillofacial Surgery
|June 1, 1991
PubMed
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Anomalies of the anterior bellies of the digastric muscles are rare but documented. Awareness is crucial for radiologists to prevent misinterpreting these anatomical variations as pathologies in the floor of the mouth.

Area of Science:

  • Anatomy
  • Radiology
  • Medical Imaging

Background:

  • Anomalies of the anterior bellies of the digastric muscles are uncommon but historically described.
  • Recent literature highlights their importance for diagnostic imaging.
  • These variations can mimic pathological findings in the head and neck region.

Purpose of the Study:

  • To raise awareness among radiologists regarding digastric muscle anomalies.
  • To differentiate these anatomical variations from abnormal lesions.
  • To improve diagnostic accuracy in the floor of the mouth and submental spaces.

Main Methods:

  • Literature review of historical and recent descriptions of digastric muscle anomalies.
  • Radiological case examples illustrating common variations.

Related Experiment Videos

  • Discussion of imaging characteristics to aid differentiation.

    • Main Results:

    • Anterior belly digastric muscle anomalies, including bilateral accessory muscles crossing the midline, are recognized variations.
    • These anomalies can present challenges in radiological interpretation.
    • Distinguishing these normal variants from pathological conditions is essential for accurate diagnosis.

    Conclusions:

    • Increased radiologist awareness of digastric muscle anomalies is necessary.
    • Understanding these anatomical variations aids in avoiding misdiagnosis.
    • Proper identification prevents unnecessary patient anxiety and further invasive investigations.