Post-infectious myositis ossificans in medial, lateral pterygoid muscles: A case report and review of the literature

Abstract

Myositis ossificans (MO) is a disease where heterotropic bone forms within a muscle or other type of soft tissue. MO is classified into two groups, MO progressiva and post-traumatic MO. It rarely occurs in the masticatory muscles and thus, only 20 cases involving the masticatory muscles have been reported since 2001. The majority of the reported cases occurred due to trauma, repeated injury or surgical manipulation. However, in a small number of cases, no specific traumatic event was identified as the cause of MO. To the best of our knowledge, this is the first case of post-infectious MO to be reported in the medial and lateral pterygoid muscles.

Transient Heterotopic Calcification and Unexpected Hypercalcemia after Treatment of Septic Shock

“…Myositis ossificans is another critical differential diagnosis and occurs with the formation of heterotopic bone in various tissues (9, 10) after sepsis has been reported (9). Interestingly, in our case, a lesion was observed in the liver, which was previously unreported.…”

“…However, the calcification process in damaged tissue has been reported for several conditions (1-4), including myocardial calcification (5-8) after sepsis. Sepsis, trauma, cancer or an imbalance in calcium metabolism are considered to be the triggering factors for these heterotopic calcification phenomena (8,9). Because our patient followed the pattern of sepsis deteriorating to MOF (e.g., liver dysfunction and rhabdomyolysis) and the calcifications were located in the liver and muscles, we propose that the calcium depositions formed in post-septic damaged tissue.…”

Myositis Ossificans of the Hip Due to Pyogenic Arthritis Caused by <i>Campylobacter fetus</i> Subspecies <i>fetus</i>

“…Previous reports have included cases of tetanus and odontogenic infection (12, 13). In a report of MO associated with pyogenic arthritis in pediatric patients, there were cases of post-pyogenic arthritis of the hip (14).…”

Yumuşak doku kalsifikasyonları ve ossifikasyonları: derleme

“…Bunu temporal kas ve medial pterygoid kas takip eder. 35,36 Laboratuvar testleri genellikle normal sınırlar içindedir. Ancak bazı vakalarda serumda yüksek alkalen fosfataz seviyesi bildirilmiştir .35…”

“…2 Tedavi seçenekleri kalsifiye kitlenin eksizyonu veya lezyonun gelişimi sırasında kemik morfogenetik protein tip 1 inhibitörü verilerek heterotopik ossifikasyonun durdurulmaya çalışılmasıdır. 35,36 Bu sırada hastaya dinlenme ve ilgili bölgenin kullanımını sınırlaması önerilir. Fonksiyonel kısıtlama ya da nörolojik bozukluğa yol açan lezyonların tamamının cerrahi eksizyonu ve cerrahi sonrası skar oluşumunu en aza indirmek için fizyoterapi önerilmektedir.…”