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Updated: Mar 26, 2026

Sexual Development and Ascospore Discharge in Fusarium graminearum
08:20

Sexual Development and Ascospore Discharge in Fusarium graminearum

Published on: March 29, 2012

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Adventitious sporulation in Fusarium: The yeast that were not

Matthew B Lockwood1, Juan Carlos Rico Crescencio2

  • 1University of Arkansas for Medical Sciences, Department of Internal Medicine, Little Rock, AR, USA.

Idcases
|January 22, 2016
PubMed

Insights

Fusarium infections in immunocompromised patients are deadly. This case report shows two patients with Fusarium survived disseminated infection and fungemia, highlighting diagnostic challenges and treatment successes.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Hematology

Background:

  • Fusarium species are emerging fungal pathogens, particularly in immunocompromised individuals.
  • Disseminated fusariosis and Fusarium fungemia are associated with high mortality rates.
  • Neutropenia, often resulting from chemotherapy for hematologic malignancies, is a significant risk factor.

Purpose of the Study:

  • To report two cases of Fusarium infection in neutropenic patients.
  • To highlight diagnostic challenges posed by yeast-like fungal growth.
  • To discuss treatment strategies and outcomes for disseminated fusariosis and fungemia.

Main Methods:

  • Case report of two neutropenic patients with Fusarium infections.
  • Review of clinical presentation, diagnostic workup, and therapeutic interventions.
  • Antifungal susceptibility testing was performed.

Main Results:

  • One patient had disseminated fusariosis secondary to acute myeloid leukemia (AML) and chemotherapy.
  • The second patient presented with Fusarium fungemia while awaiting stem cell collection for multiple myeloma.
  • Both cases exhibited yeast-like Fusarium morphology in blood cultures, delaying diagnosis.
  • Fusarium demonstrated resistance to multiple antifungals, with susceptibility only to amphotericin B.
  • Despite resistance, voriconazole was used in the disseminated case due to clinical response, and both patients achieved good outcomes.

Conclusions:

  • Fusarium infections in neutropenic patients, though often fatal, can have favorable outcomes with appropriate management.
  • The yeast-like morphology of Fusarium in blood cultures presents a diagnostic challenge.
  • Antifungal resistance is a concern, necessitating careful treatment selection and monitoring.
Keywords:
AdventitiousFusariumImmunosuppresionIsavuconazoleNeutropeniaSporulation

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