Display options
Cite
Kamalapur MG, Patil PB, Joshi S, et al. Pseudomalignant myositis ossificans involving multiple masticatory muscles: Imaging evaluation. Indian J Radiol Imaging. 2014;24(1):75-9doi: 10.4103/0971-3026.130706.
Kamalapur, M. G., Patil, P. B., Joshi, S., & Shastri, D. (2014). Pseudomalignant myositis ossificans involving multiple masticatory muscles: Imaging evaluation. The Indian journal of radiology & imaging, 24(1), 75-9. https://doi.org/10.4103/0971-3026.130706
Kamalapur, Muralidhar G, et al. "Pseudomalignant myositis ossificans involving multiple masticatory muscles: Imaging evaluation." The Indian journal of radiology & imaging vol. 24,1 (2014): 75-9. doi: https://doi.org/10.4103/0971-3026.130706
Kamalapur MG, Patil PB, Joshi S, Shastri D. Pseudomalignant myositis ossificans involving multiple masticatory muscles: Imaging evaluation. Indian J Radiol Imaging. 2014 Jan;24(1):75-9. doi: 10.4103/0971-3026.130706. PMID: 24851010; PMCID: PMC4028921.
Copy Download .nbib Format: NLM
Share it on

Indian J Radiol Imaging. 2014 Jan;24(1):75-9. doi: 10.4103/0971-3026.130706.

Pseudomalignant myositis ossificans involving multiple masticatory muscles: Imaging evaluation.

The Indian journal of radiology & imaging

Muralidhar G Kamalapur, Pritam B Patil, Shyamsundar Joshi, Dinesh Shastri

Affiliations

  1. Department of Radiodiagnosis and Imaging, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India.
  2. Department of Pathology, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India.

PMID: 24851010 PMCID: PMC4028921 DOI: 10.4103/0971-3026.130706

Abstract

Myositis ossificans is a rare cause of trismus. We present a case of pseudomalignant myositis ossificans involving medial pterygoid, lateral pterygoid, and temporalis muscles. Patient presented with gross limitation in mouth opening. There was no history of trauma. Computed tomography (CT) images revealed a bone density mass located in the region of medial and lateral pterygoid muscles on the right and temporalis muscle on the left. Magnetic resonance imaging (MRI) showed similar findings. Radiological diagnosis was pseudomalignant myositis ossificans. The masses were resected and histopathologic examination confirmed the above diagnosis. This report describes the characteristic CT and MRI features. The unique feature of this case is the absence of history of trauma with involvement of multiple masticatory muscles, which, to the best of our knowledge, has not been reported before.

Keywords: Pseudomalignant myositis ossificans; pterygoid muscles; temporal muscle

References

  1. Am J Sports Med. 1987 Mar-Apr;15(2):179-81 - PubMed
  2. J Bone Joint Surg Am. 1958 Apr;40-A(2):279-98 - PubMed
  3. J Oral Maxillofac Surg. 1984 Aug;42(8):521-6 - PubMed
  4. J Oral Maxillofac Surg. 1985 Oct;43(10):786-9 - PubMed
  5. Int J Oral Maxillofac Surg. 1998 Aug;27(4):299-302 - PubMed
  6. Orthopedics. 1999 Oct;22(10):1000, 991-5 - PubMed
  7. AJR Am J Roentgenol. 1991 Dec;157(6):1243-8 - PubMed
  8. Head Neck Oncol. 2009 Aug 12;1:30 - PubMed
  9. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1997 Dec;84(6):703-7 - PubMed
  10. J Oral Maxillofac Surg. 2002 Sep;60(9):1072-6 - PubMed
  11. AJR Am J Roentgenol. 2001 May;176(5):1165-6 - PubMed
  12. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2004 Sep;98(3):261-6 - PubMed
  13. Med Oral Patol Oral Cir Bucal. 2007 Aug 01;12(4):E277-80 - PubMed
  14. AJR Am J Roentgenol. 1978 Apr;130(4):773-6 - PubMed

Publication Types