Chronic pulmonary histoplasmosis-a scoping literature review

Jacob Baker, Chris Kosmidis, Anna Rozaliyani, Retno Wahyuningsih, David W. Denning

Research output: Contribution to journalReview articlepeer-review

4 Citations (Scopus)

Abstract

Chronic pulmonary histoplasmosis (CPH) is an uncommon manifestation of Histoplasma infection with features similar to pulmonary tuberculosis (TB). In endemic areas, it may be misdiagnosed as smear-negative pulmonary TB. Historical case series mainly from patients with presumed TB described a high frequency of cavitation and poor prognosis, likely resulting from delayed presentation. More recent reports suggest that CPH can present with nodules, lymphadenopathy, or infiltrates, with cavities being a less common feature. Emphysema is the main risk factor for cavitary CPH. CPH is therefore an umbrella term, with chronic cavitary pulmonary histoplasmosis and Histoplasma nodules being the main long-term manifestations in nonimmunocompromised individuals. Diagnosis relies on a high index of suspicion, use of fungal culture of respiratory samples, antibody testing, and compatible radiological picture. Treatment with itraconazole for at least 12 months is recommended. Morbidity from CPH results from slow progression of cavities and gradual loss of lung function, especially if not recognized and treated. Studies on the epidemiology of CPH are needed in order to improve understanding of the disease.

Original languageEnglish
Article numberofaa119
JournalOpen Forum Infectious Diseases
Volume7
Issue number5
DOIs
Publication statusPublished - 2020

Keywords

  • Cavitation
  • Chronic pulmonary histoplasmosis
  • Histoplasma
  • Nodule
  • Tuberculosis

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