Friday, 9 September 2016

Difficulties in Diagnosis of Malaria in Non-Endemic Areas: A Case Report of a Child in Brazil

A boy aged 11 years and eight months, coming from the state of Mato Grosso do Sul, mid-western region of Brazil, was taken to the teaching hospital of the Federal University of Mato Grosso do Sul with a history of high fever for 8 days, temperature peaking 40°C, especially in the evening and night. The febrile episodes lasted for about 2-3 hours, slightly easing with the use of antipyretics, and were followed by sweating and fatigue during defervescence. Also noticed were prostration, appetite loss and weight loss (approximately 2 kg in a week), in addition to diarrhea, vomiting and diffuse abdominal pain. Physical examination presented HR (heart rate) = 120 bpm, RR (respiratory rate) = 36 rpm, axillary temperature = 39.5°C, weight = 27 kg. The patient was pale, anicteric and showing intense prostration. 

Diagnosis of Malaria
The cardiopulmonary examination showed no noteworthy changes. He presented abdominal distension and relevant visceromegaly, with liver palpable at 6 cm below the RCM and 10 cm from the xiphoid process, very painful, and spleen at 4.5 cm below the left costal margin, painless. Both viscera occupied all mesogaster and hypochondria. The extremities showed no edema, and good peripheral perfusion was seen. The results of blood count and biochemical tests were: hemoglobin concentration =9.3 g/dL, hematocrit = 28%, leukocytes = 2900 mm3 (band neutrophils, 4%,segmented neutrophils, 61%, eosinophils, 3% lymphocytes, 29% monocytes 3%), platelet count = 150,000, sodium = 136 mmol/L, potassium = 4.4 mmol/L, urea = 49 mg/dL, creatinine = 0.8 mg/dL; AST = 54 U/L, ALT= 80U/L, TP = 5.9 g/dL, Alb = 2.5 g/dL, Globulins = 3.4 g/dL; TB = 0, 55 mg/dL, DB = 0.13 mg/dL, IB = 0.42 mg/dL. The occurrence of fever, pallor, hepatosplenomegaly, anemia and leukopenia has initially led to the diagnosis of visceral leishmaniasis (VL), since this disease is endemic in the state of Mato Grosso do Sul.

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