Myositis ossificans (sporadic form)

Author: Prof. Dr. med. Peter Altmeyer

All authors of this article

Last updated on: 29.10.2020

Dieser Artikel auf Deutsch

Synonym(s)

Circumscripts Myositis ossificans; Idiopathic myositis ossificans; Peudomaligne myositis ossificans; Sporadic myositis ossificans; Sporadic myositis proliferans

Definition
This section has been translated automatically.

Rare, non-hereditary, acquired clinical picture characterized by painful nodes along tendons and tendon sheaths. These can also occur within the musculature. The changes often occur after a verifiable local trauma, but more rarely they occur spontaneously.

Etiopathogenesis
This section has been translated automatically.

Localization
This section has been translated automatically.

Mainly shoulder, neck, arms, lower legs, trunk localized; less often on the tongue or orally.

Clinical features
This section has been translated automatically.

Rapidly growing, usually painful, 1.0-5.0 cm large, inflammatory subcutaneous plates or nodules as well as rough, painful, nodular indurations of the musculature which are caked to the covering skin and the subcutis.

Histology
This section has been translated automatically.

In the dermis cell-rich, polymorphic infiltrates of epithelioid cells and some multinucleated bizarre, giant cells, heart-shaped lymphocytes, leukocytes, haemorrhages and haemosiderotic pigment. In older foci, calcification or extraosseous ossification can be detected. Subepidermally free stripes, dense, cellular infiltration of the striated musculature, partly with sarcolysis.

Literature
This section has been translated automatically.

  1. Altmeyer P et al (1983) Proliferative Myositis. Dermatologist 34: 221-224
  2. Bauer AH et al (2018) Fibrodysplasia ossificans progressiva: a current review of imaging findings. Skeletal radiol 47:1043-1050.
  3. Chevalier X et al (1993) Proliferative myositis as a complication of rheumatoid vasculitis. J Rheumatol 20: 1259-1260
  4. Kent MS et al (2002) Proliferative myositis: a rare pseudosarcoma of the chest wall. Ann Thorac Surg 73: 1296-1298
  5. Core WH (1960) Proliferative Myositis: a pseudosarcomatous reaction to injury. Arch catholic 69: 209-216
  6. Sferopoulos NK et al (2017) Myositis ossificans in children: a review. Eur J Orthop Surg Traumatol 27:491-502.https://www.ncbi.nlm.nih.gov/pubmed/28275867
  7. Turner R et al (1997) Proliferative myositis: an unusual cause of multiple subcutaneous nodules. Clin Exp Dermatol 22: 101-103

Disclaimer

Please ask your physician for a reliable diagnosis. This website is only meant as a reference.

Authors

Last updated on: 29.10.2020