Subcutaneous abscesses caused by Ochroconis gallopavum

Area of Science:

• Medical Mycology
• Hematology
• Infectious Diseases

Background:

• Subcutaneous fungal infections can pose significant challenges, particularly in immunocompromised individuals.
• Acute myeloblastic leukemia (AML) severely compromises the immune system, increasing susceptibility to opportunistic infections.

Observation:

• A patient diagnosed with acute myeloblastic leukemia developed a subcutaneous infection.
• Histological examination revealed dematiaceous, septate hyphae characteristic of a fungal etiology.
• A darkly pigmented fungus, identified as Ochroconis gallopavum (Dactylaria gallopava), was isolated from the infection site.

Findings:

• The isolated Ochroconis gallopavum exhibited typical mycological features.
• The patient received treatment with antileukemic drugs and 5-fluorocytosine for six months.
• Post-mortem examination confirmed widespread leukemic infiltrates but no evidence of systemic fungal invasion.

Implications:

• This case highlights Ochroconis gallopavum as a potential pathogen in immunocompromised patients, specifically those with hematological malignancies.
• The study underscores the importance of accurate mycological identification for targeted treatment strategies.
• Further research is needed to understand the pathogenesis and optimal management of O. gallopavum infections in leukemia patients.