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| LETTER TO EDITOR |
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| Year : 2022 | Volume
: 17
| Issue : 4 | Page : 1027 |
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Radiography in dermatomyositis
Lakshmi Bishnoi, Suresh Vasant Phatak, Pratik Jayprakash Bhansali, Rishabh Surendra Gupta
Department of Radiodiagnosis, Jawaharlal Nehru Medical College, Wardha, Maharashtra, India
| Date of Submission | 25-Jan-2021 |
| Date of Acceptance | 05-Jun-2022 |
| Date of Web Publication | 10-Feb-2023 |
Correspondence Address:
Dr. Suresh Vasant Phatak
Department of Radiodiagnosis, Jawaharlal Nehru Medical College, Sawangi (Meghe), Wardha, Maharashtra
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/jdmimsu.jdmimsu_36_21
How to cite this article:
Bishnoi L, Phatak SV, Bhansali PJ, Gupta RS. Radiography in dermatomyositis. J Datta Meghe Inst Med Sci Univ 2022;17:1027 |
Sir,
Dermatomyositis is a rare disorder.
The idiopathic inflammatory myopathy is considered to be a group of chronic systemic connective tissue disorders, which mainly consists of diseases such as dermatomyositis, polymyositis, and inclusion body myositis. Dermatomyositis and polymyositis occur more frequently than Inclusion body myositis.[1] Because of overlapping features of polymyositis and dermatomyositis, misdiagnosis is common. Muscle biopsy can make accurate diagnosis of different subtypes of myositis.[2] Radiographs in the acute phase of dermatomyositis can demonstrate distinct thickening of soft tissues at the proximal parts of the limbs, increased radio density of the subcutaneous tissue and muscle, coupled with poor appreciation of the subcutis-muscle interface.[3],[4],[5] While in chronic phase, the most pathognomonic radiographic findings are soft tissue calcifications, detected in approximately 25%–50% of patients. They can potentially cause contractures and lead to localized muscle atrophy. Bone loss of long bones and other complications, such as compression fractures of vertebral bodies or avascular necrosis secondary to steroid therapy, may also be associated with this.[6] Four different patterns of calcification are described in literature in diagnosed cases of dermatomyositis which include superficial nodular/clump such as calcific masses, deep calcaneal masses, deep linear/sheet like calcifications occurring in fascial planes and a rare manifestation of diffuse superficial lace like/reticular calcification which involving entire body surface[7],[8] [Figure 1]a and [Figure 1]b. | Figure 1: (a and b) Radiograph pelvis AP and lateral view showing combination of calcification patterns namely superficial clump like calcified masses, deep-seated calcified masses, deep linear sheet like masses occurring in fascial planes and superficial lace like calcification
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Financial support and sponsorship
Nil.
Conflicts of interest
There are no conflicts of interest.
| References | |  |
| 1. | Ungprasert P, Leeaphorn N, Hosiriluck N, Chaiwatcharayut W, Ammannagari N, Raddatz DA. Clinical features of inflammatory myopathies and their association with malignancy: A systematic review in Asian population. ISRN Rheumatol 2013;2013:509354.  |
| 2. | Ernste FC, Reed AM. Idiopathic inflammatory myopathies: Current trends in pathogenesis, clinical features, and up-to-date treatment recommendations. Mayo Clin Proc 2013;88:83-105. |
| 3. | Resnick D, Kransdorf MJ. Dermatomyositis, polymyositis, and other inflammatory myopathies. In: Bone and Joint Imaging. Philadelphia: Elsevier Saunders; 2005. p. 337-43. |
| 4. | Schwartz Doria A, Babyn P. Imaging investigation of arthritis in children. In: Imaging of Arthritis and Metabolic Bone Diseases. Philadelphia: Sounders Elsevier; 2009. p. 428-56. |
| 5. | Greenspan A, Gershwin ME. Connective tissue arthropathies. In: Greenspan A, Gershwin ME, editors. Imaging in Rheumatology. Philadelphia: Wolters Kluwer; 2018. p. 316-20. |
| 6. | Sudoł-Szopińska I, Jacques T, Gietka P, Cotten A. Imaging in dermatomyositis in adults and children. J Ultrasonogr 2020;20:e36. |
| 7. | Agarwal V, Sachdev A, Dabra AK. Case 104: Calcinosis in juvenile dermatomyositis. Radiology 2007;242:307-11. |
| 8. | Blane CE, White SJ, Braunstein EM, Bowyer SL, Sullivan DB. Patterns of calcification in childhood dermatomyositis. AJR Am J Roentgenol 1984;142:397-400. |
[Figure 1]
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