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Purpura Fulminans Secondary to Streptococcus pneumoniae Meningitis
Erick F Alvarez1, Karen E Olarte, Mayur S Ramesh
1Infectious Diseases Division, Henry Ford Hospital, 2799 W. Grand Blvd., Detroit, MI 48202, USA.
Abstract:
Purpura fulminans (PF) is a rare skin disorder with extensive areas of blueblack hemorrhagic necrosis. Patients manifest typical laboratory signs of disseminated intravascular coagulation (DIC). Our case describes a 37-year-old previously healthy man who presented with 3 days of generalized malaise, headache, vomiting, photophobia, and an ecchymotic skin rash. Initial laboratory workup revealed DIC without obvious infectious trigger including unremarkable cerebrospinal fluid (CSF) biochemical analysis. There was further progression of the skin ecchymosis and multiorgan damage consistent with PF. Final CSF cultures revealed Streptococcus pneumoniae. Despite normal initial CSF biochemical analysis, bacterial meningitis should always be considered in patients with otherwise unexplained DIC as this may be an early manifestation of infection. PF is a clinical diagnosis that requires early recognition and prompt empirical treatment, especially, in patients with progressive altered mental status, ecchymotic skin rash, and DIC.
Insights
Purpura fulminans (PF), a rare skin disorder, can present with disseminated intravascular coagulation (DIC) and skin necrosis. Early recognition of bacterial meningitis, even with normal initial CSF analysis, is crucial for prompt PF treatment.
Area of Science:
- Dermatology
- Hematology
- Infectious Diseases
Background:
- Purpura fulminans (PF) is a rare, severe dermatological condition characterized by extensive violaceous, hemorrhagic skin necrosis.
- Patients with PF often exhibit laboratory evidence of disseminated intravascular coagulation (DIC), a life-threatening systemic coagulopathy.
Observation:
- A case study details a 37-year-old male presenting with malaise, headache, vomiting, photophobia, and an ecchymotic rash.
- Initial diagnostics revealed DIC without a clear infectious source, including normal cerebrospinal fluid (CSF) biochemistry.
- The patient's condition progressed to multiorgan damage consistent with PF, with subsequent CSF cultures identifying Streptococcus pneumoniae.
Findings:
- Unexplained disseminated intravascular coagulation (DIC) and purpura fulminans (PF) should prompt consideration of bacterial meningitis, even with initially normal CSF analysis.
- Streptococcus pneumoniae was identified as the causative agent in a case of PF with DIC, highlighting infection as a potential trigger.
Implications:
- Early recognition and prompt empirical treatment of PF are critical, particularly in patients with altered mental status, ecchymotic rash, and DIC.
- This case underscores the importance of considering infectious etiologies, such as bacterial meningitis, in the differential diagnosis of unexplained DIC and PF.
- Timely CSF analysis and culture are vital for identifying infectious triggers in patients presenting with PF and DIC.
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