Invasive Group A Streptococcus Infection Leading to Toxic Shock Syndrome, Myositis, and Likely Necrotizing Fasciitis in a Patient with Pemphigus Vulgaris
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October 6, 2026
Clinical Report: Invasive Group A Streptococcus Infection in Pemphigus Vulgaris
Background
Pemphigus vulgaris (PV) is an autoimmune blistering disorder that predisposes patients to skin and soft tissue infections. Invasive group A streptococcal infections are associated with high mortality rates, ranging from 70% to 100%. Understanding the interplay between PV and bacterial infections is crucial for improving patient outcomes.
Data Highlights
Parameter | Value |
|---|---|
Patient Age | 44 years |
Body Mass Index | 40 kg/m2 |
Mortality Rate of Invasive Group A Streptococcus | 70% to 100% |
Key Findings
The patient had a severe exacerbation of pemphigus vulgaris prior to the infection.
Invasive group A streptococcus was isolated from all blood culture bottles.
Clinical symptoms included fever, tachycardia, and worsening pain with edema and erythema.
Computed tomography revealed diffuse soft tissue thickening and extensive venous thrombosis.
Multidisciplinary care was essential in managing the patient's complex condition.
Clinical Implications
Healthcare providers should be vigilant for signs of invasive group A streptococcal infections in patients with pemphigus vulgaris, especially during exacerbations.
Conclusion
This case highlights the complexities involved in managing invasive group A streptococcal infections in patients with pemphigus vulgaris.
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Association of serious infections with pemphigus and pemphigoid: analysis of the Nationwide Inpatient Sample.
Based on findings from:
Invasive Group A Streptococcus Toxic Shock Syndrome, Myositis, and Probable Necrotizing Fasciitis in Pemphigus Vulgaris
Annals Of Internal Medicine: Clinical Cases, 2026.
https://www.acpjournals.org/doi/10.7326/aimcc.2026.0295
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