Scrotal and penile edema in a patient with incomplete kawasaki disease: a case report and brief literature review.

BACKGROUND: Kawasaki disease (KD) is a medium artery vasculitis that predominantly affects children under age 5. Prompt diagnosis and treatment with IVIG and moderate dose aspirin is required to prevent the formation of coronary artery aneurysms. While scrotal edema and erythema have been seen in KD, here we present a distinctive case of incomplete Kawasaki with these features as well as penile edema. CASE PRESENTATION: A 2-year-old, unvaccinated, African American male presented with 4 days of fever, bilateral limbic sparing conjunctivitis, a papular rash, unilateral shotty cervical lymphadenopathy, mild right-hand edema, and scrotal and penile edema and erythema. His labs were significant for sterile pyuria, elevated ALT, anemia for age, and hypoalbuminemia. He was diagnosed with incomplete Kawasaki disease and was treated with IVIG and moderate dose aspirin. Echocardiogram was negative for coronary aneurysms. His symptoms resolved and he was discharged home with low dose aspirin. At his 2-week follow up, he remained well-appearing with no refractory Kawasaki symptoms. CONCLUSION: This is a unique case of penile edema in KD which to our knowledge has not been previously reported in literature. An understanding of genitourinary symptoms in Kawasaki disease can help timely diagnosis and treatment of the disease.

Myopericarditis after messenger RNA Coronavirus Disease 2019 Vaccination in Adolescents 12 to 18 Years of Age.

OBJECTIVES: To characterize the clinical course and outcomes of children 12-18 years of age who developed probable myopericarditis after vaccination with the Pfizer-BioNTech (BNT162b2) coronavirus disease 2019 (COVID-19) messenger RNA (mRNA) vaccine. STUDY DESIGN: A cross-sectional study of 25 children, aged 12-18 years, diagnosed with probable myopericarditis after COVID-19 mRNA vaccination as per the Centers for Disease Control and Prevention criteria for myopericarditis at 8 US centers between May 10, 2021, and June 20, 2021. We retrospectively collected the following data: demographics, severe acute respiratory syndrome coronavirus 2 virus detection or serologic testing, clinical manifestations, laboratory test results, imaging study results, treatment, and time to resolutions of symptoms. RESULTS: Most (88%) cases followed the second dose of vaccine, and chest pain (100%) was the most common presenting symptom. Patients came to medical attention a median of 2 days (range, <1-20 days) after receipt of Pfizer mRNA COVID-19 vaccination. All adolescents had an elevated plasma troponin concentration. Echocardiographic abnormalities were infrequent, and 92% showed normal cardiac function at presentation. However, cardiac magnetic resonance imaging, obtained in 16 patients (64%), revealed that 15 (94%) had late gadolinium enhancement consistent with myopericarditis. Most were treated with ibuprofen or an equivalent nonsteroidal anti-inflammatory drug for symptomatic relief. One patient was given a corticosteroid orally after the initial administration of ibuprofen or an nonsteroidal anti-inflammatory drug; 2 patients also received intravenous immune globulin. Symptom resolution was observed within 7 days in all patients. CONCLUSIONS: Our data suggest that symptoms owing to myopericarditis after the mRNA COVID-19 vaccination tend to be mild and transient. Approximately two-thirds of patients underwent cardiac magnetic resonance imaging, which revealed evidence of myocardial inflammation despite a lack of echocardiographic abnormalities.

Community-Acquired MRSA Pericarditis and Mediastinitis in a Previously Healthy Infant.

Invasive community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infections disproportionately affect children, but there are few pediatric reports of pericarditis and mediastinitis caused by CA-MRSA in previously healthy children. Here we report a severe case of CA-MRSA pericarditis with extension to the mediastinum and carotid sheath in a previously healthy 8-month-old infant who was successfully treated with surgical interventions and with a combination of daptomycin and vancomycin. The relatively indolent clinical course in this patient was notable given the significant extent of infection. This case highlights the potential virulence of CA-MRSA in previously healthy children and the importance of early diagnosis, prompt drainage, and appropriate antibiotic coverage.