Which factors are used to narrow the differential diagnoses of coccidioidomycosis?

Updated: Aug 27, 2019
  • Author: Duane R Hospenthal, MD, PhD, FACP, FIDSA, FASTMH; Chief Editor: Michael Stuart Bronze, MD  more...
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A common pitfall is mistaking viral meningitis for coccidioidal meningitis in patients with meningitis and lymphocytic pleocytosis. The patient's travel history and area of residence have a major role in leading the clinician to the correct diagnosis. Findings of eosinophils in the CSF or hypoglycorrhachia are important. The progressive nature of the disease is inconsistent with a viral etiology.

The differential diagnoses of erythema nodosum are extensive. Coccidioidomycosis is perhaps one of the most significant associated conditions, and once again, the patient's travel history and area of residence are important. Patients with erythema nodosum generally have a benign course.

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