International Journal of Clinical Pediatrics, ISSN 1927-1255 print, 1927-1263 online, Open Access
Article copyright, the authors; Journal compilation copyright, Int J Clin Pediatr and Elmer Press Inc
Journal website https://ijcp.elmerpub.com

Case Report

Volume 14, Number 1, June 2025, pages 13-19

Unveiling the Unexpected: A Rare Case of Silent Pediatric Cardiac Myxoma Mimicking Infection in an Eleven-Year-Old Girl

Figures

Figure 1.
Figure 1. (a) Contrast-enhanced CT image at the level of aortic root demonstrating 4 × 5 cm heterogeneous appearing left atrial mass arising from the interatrial septum (arrow). (b) Mass demonstrating patchy enhancement secondary to intra-tumoral hemorrhage, necrosis and calcification (arrows). CT: computed tomography.
Figure 2.
Figure 2. CTA of the right and left lower extremity demonstrating complete occlusion of the right common femoral artery (arrow). CTA: computed tomography angiography.
Figure 3.
Figure 3. Timeline.

Tables

Table 1. Differential Diagnosis
 
Infectious
  Cellulitis
  Erysipelas
  Septic emboli
Rheumatologic
  Cutaneous small-vessel vasculitis
  Henoch-Schonlein purpura
  Cryoglobulinemic vasculitis
  Polyarteritis nodosa
Cardiac
  Rheumatic heart disease
  Embolization of cardiac mass
    Rhabdomyoma
    Fibroma
    Myxoma

 

Table 2. Inflammatory Markers
 
LaboratoryValueReference range
CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; IL-6: interleukin-6; LDH: lactate dehydrogenase.
ESR35< 20 mm/h
CRP20.89Up to 5.0 mg/L
LDH383Female: 135 - 214 U/L
Ferritin82.6Female: 13 - 150 ng/mL
Creatinine kinase415< 300 U/L
IL-64.8< 5 pg/mL

 

Table 3. Complete Blood Count With Differential Profile
 
LaboratoryValueReference range
RBC: red blood cell; WBC: white blood cell.
WBC total14,0004,000 - 11,000/UL
RBC total4.85Female: 3.8 - 5.8/UL
Platelet count600,000150,000 - 400,000/UL
Neutrophils5840-75%
Lymphocytes3520-45%
Monocytes72-10%
Eosinophils01-6%
Basophils00-1%
Hemoglobin10.9Female: 11.6 - 16.5 g/dL