Bacterial, fungal, parasitic, and viral myositis

Area of Science:

• Infectious Diseases
• Musculoskeletal System Disorders
• Microbiology

Background:

• Infectious myositis is a rare condition affecting muscle tissue, often occurring secondary to predisposing factors like trauma or foreign bodies.
• The musculature's inherent resistance makes infection uncommon, but a diverse range of pathogens can be implicated.
• Bacterial, fungal, parasitic, and viral agents are recognized causes of infectious myositis.

Purpose of the Study:

• To provide a comprehensive overview of infectious myositis.
• To categorize the different types of infectious myositis based on causative agents and clinical presentations.
• To highlight diagnostic approaches and therapeutic strategies for infectious myositis.

Main Methods:

• Review of literature on infectious myositis.
• Categorization of bacterial myositis based on clinical and etiological factors.
• Discussion of diagnostic modalities including clinical evaluation, imaging, and laboratory testing.
• Overview of treatment principles based on pathogen identification.

Main Results:

• Bacterial myositis presents in various forms, including pyomyositis, psoas abscess, and specific infections caused by Staphylococcus aureus, Streptococcus species, and Clostridium.
• Fungal myositis primarily affects immunocompromised individuals.
• Parasitic myositis is often linked to travel history and eosinophilia, with common causes being trichinosis and cysticercosis.
• Viral infections can lead to diffuse muscle involvement, manifesting as benign acute myositis, pleurodynia, or rhabdomyolysis.

Conclusions:

• Infectious myositis requires a multi-faceted diagnostic approach combining clinical suspicion, imaging, and microbiological confirmation.
• Effective management hinges on accurate identification of the causative agent and prompt, targeted therapy.
• Understanding the diverse etiologies is crucial for timely diagnosis and appropriate treatment of infectious myositis.