Acute bone marrow necrosis caused by streptococcal infection

Area of Science:

• Pediatric Infectious Diseases
• Hematology
• Microbiology

Background:

• Acute leukemia is a serious diagnosis in children, characterized by abnormal white blood cell proliferation.
• Differential diagnosis is crucial, especially when presenting symptoms overlap with severe infections.
• Fever, hepatosplenomegaly, leukopenia, and thrombocytopenia can be indicative of both malignancy and infection.

Observation:

• An 8-year-old boy presented with a foot furuncle, high fever, severe knee pain, and hematologic abnormalities (leukopenia, thrombocytopenia), initially suspected as acute leukemia.
• Bone marrow aspirate revealed necrotic cells and Streptococcus clusters, not leukemic cells.
• Clinical signs included slight hepatosplenomegaly.

Findings:

• Microscopic examination of bone marrow aspirate identified Streptococcus clusters and necrotic cells.
• The patient's condition was attributed to a severe streptococcal infection, not acute leukemia.
• Leukopenia and thrombocytopenia resolved after treatment.

Implications:

• This case underscores the critical need to consider and rule out severe bacterial infections in pediatric patients presenting with leukemia-like symptoms.
• Early identification of infectious etiologies, like streptococcal bacteremia, is vital for appropriate and timely treatment.
• Antibiotic therapy proved effective, leading to complete clinical recovery and resolution of hematologic abnormalities.