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Radiation therapy in non-traumatic myositis ossificans of popliteal region: a case report

Published online by Cambridge University Press:  02 October 2023

Sonal Patel Shah Open the ORCID record for Sonal Patel Shah [Opens in a new window] ,
Asmita Kulshrestha Open the ORCID record for Asmita Kulshrestha [Opens in a new window] ,
Monik Patel Open the ORCID record for Monik Patel [Opens in a new window] ,
Maitrik Mehta Open the ORCID record for Maitrik Mehta [Opens in a new window] ,
Suryanarayana Kunikullaya Open the ORCID record for Suryanarayana Kunikullaya [Opens in a new window]  and
Ankit Sharma Open the ORCID record for Ankit Sharma [Opens in a new window]
Sonal Patel Shah
Affiliation:
Department of Radiation Oncology, Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad-380016, Gujarat, India
Asmita Kulshrestha*
Affiliation:
Department of Radiation Oncology, Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad-380016, Gujarat, India
Monik Patel
Affiliation:
Department of Radiation Oncology, Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad-380016, Gujarat, India
Maitrik Mehta
Affiliation:
Department of Radiation Oncology, Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad-380016, Gujarat, India
Suryanarayana Kunikullaya
Affiliation:
Department of Radiation Oncology, Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad-380016, Gujarat, India
Ankit Sharma
Affiliation:
Department of Surgical Oncology, Gujarat Cancer and Research Institute, Civil Hospital Campus, Asarwa, Ahmedabad-380016, Gujarat, India
*
Corresponding author: Dr Asmita Kulshrestha; Email: asmi.kul@gmail.com
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Abstract

Introduction:

Myositis ossificans (MO) is a rare disorder of ectopic ossification in soft tissue or muscle, usually associated with trauma or hereditary conditions. Surgical excision is the mainstay of treatment with anti-inflammatory medications. Radiotherapy is used as an adjuvant therapy, to treat residual lesions and to relieve symptoms.

Methods:

A 36-year-old male presented with a localised tender swelling in left popliteal fossa and progressive pain in lower limb for 6 weeks and restricted mobility for 3 weeks. A local excision of calcified mass arising from fascia of left popliteal fossa was consistent with MO features. Due to persistent symptoms and a residual lesion on imaging, adjuvant external beam radiation therapy (EBRT) was planned with a low dose of 10 Gy (Gray) in 2 fractions on 2 consecutive days in a prone position after 2 weeks using 6 MV (mega voltage) photon beam on linear accelerator (LINAC).

Results:

Radiotherapy resulted in a significant clinical improvement without any related acute toxicities. Patient is disease-free and on regular follow-up without any progression after 2 years.

Conclusion:

Post-operative EBRT can stabilise residual MO and treat intractable pain when lesion lies in the vicinity of a neurovascular bundle

Keywords

myositis ossificansnon-traumaticpopliteal fossaradiation therapyresidual
Type
Case Study
Information
Journal of Radiotherapy in Practice , Volume 22 , 2023 , e108
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Copyright
© The Author(s), 2023. Published by Cambridge University Press

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