Rare Diseases Symptoms Automatic Extraction

False positive malaria rapid diagnostic test in returning traveler with typhoid fever.

[typhoid]

Rapid diagnostic tests play a pivotal role in the early diagnosis of malaria where microscopy or polymerase chain reaction are not immediately available.We report the case of a 39 year old traveler to Canada who presented with fever, headache, and abdominal pain after visiting friends and relatives in India. While in India, the individual was not ill and had no signs or symptoms of malaria. Laboratory testing upon his return to Canada identified a false positive malaria rapid diagnostic (BinaxNOW® malaria) result for P. falciparum with coincident Salmonella Typhi bacteraemia without rheumatoid or autoimmune factors. Rapid diagnostic test false positivity for malaria coincided with the presence or absence of Salmonella Typhi in the blood.Clinicians should be aware that Salmonella Typhi infection may result in a false positive malaria rapid diagnostic test. The mechanism of this cross-reactivity is not clear.

Diseases presenting "headache" symptom

  • acute rheumatic fever
  • adrenal incidentaloma
  • allergic bronchopulmonary aspergillosis
  • cadasil
  • cushing syndrome
  • cutaneous mastocytosis
  • erdheim-chester disease
  • esophageal squamous cell carcinoma
  • familial mediterranean fever
  • hereditary cerebral hemorrhage with amyloidosis
  • hydrocephalus with stenosis of the aqueduct of sylvius
  • legionellosis
  • locked-in syndrome
  • malignant atrophic papulosis
  • scrub typhus
  • severe combined immunodeficiency
  • sneddon syndrome
  • systemic capillary leak syndrome
  • thoracic outlet syndrome
  • typhoid
  • von hippel-lindau disease

This symptom has already been validated