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Spleen nodules: a potential hallmark of Visceral Leishmaniasis in young children
Fraia Melchionda1, Stefania Varani2,3, Filomena Carfagnini4
1Pediatric Hematology and Oncology Unit St. Orsola-Malpighi Hospital University of Bologna, Via Massarenti 11, Bldg 13, Bologna, 40138, Italy. fraia.melchionda@aosp.bo.it.
Insights
Visceral leishmaniasis (VL) in infants can be challenging to diagnose. Spleen nodules on ultrasound may indicate Leishmania infantum infection, aiding early detection in children.
Area of Science:
- Pediatric infectious diseases
- Parasitology
- Medical imaging
Background:
- Visceral leishmaniasis (VL), caused by Leishmania infantum, is a severe disease in the Mediterranean basin, posing significant health risks.
- Infantile VL symptoms range from sudden onset fever and vomiting to insidious fever, anorexia, and splenomegaly.
- Delayed diagnosis of VL is common, necessitating greater clinical awareness in endemic European regions.
Observation:
- Four young children in northern Italy presented with persistent fever of unknown origin.
- Diagnosis of VL was confirmed using serological and molecular methods.
- An unusual echographic pattern of multiple iso-hypoechoic nodules associated with splenomegaly was observed in these patients.
Findings:
- The study identified a distinct echographic pattern in infants diagnosed with VL.
- Multiple iso-hypoechoic spleen nodules were a consistent finding in the pediatric VL cases.
- This imaging finding was associated with confirmed Leishmania infantum infection.
Implications:
- Detection of spleen nodules may serve as a diagnostic signature for VL in infants.
- This finding can aid in the early diagnosis of systemic Leishmania infantum infection in children.
- Increased awareness of this sonographic finding can improve VL diagnosis and management in endemic areas.
Background:
Visceral leishmaniasis (VL) is a severe disease caused by Leishmania infantum in the Mediterranean basin, and is associated with considerable morbidity and mortality. Infantile VL may begin suddenly, with high fever and vomiting, or insidiously, with irregular daily fever, anorexia, and marked splenomegaly. Delays in diagnosis of VL are common, highlighting the need for increased awareness of clinicians for VL in endemic European countries.
Case Presentation:
We report 4 cases of young children in northern Italy presenting with persistent fever of unknown origin and diagnosed with VL by serological and molecular methods. At the time of diagnosis, these patients showed an unusual echographic pattern characterized by multiple iso-hypoechoic nodules associated with splenomegaly.
Conclusion:
We suggest that detection of spleen nodules represents a signature of VL in infants, thus helping to diagnose systemic Leishmania infantum infection in children.
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