Disseminated Nocardia asteroides with pustules

Area of Science:

• Medical Mycology
• Infectious Diseases
• Transplantation Immunology

Background:

• Disseminated nocardiosis is a severe opportunistic infection primarily affecting immunocompromised hosts.
• Nocardia asteroides typically causes pleuropulmonary disease, but dissemination can lead to varied clinical presentations.
• Renal transplant recipients are particularly vulnerable due to long-term immunosuppression.

Observation:

• A case of disseminated Nocardia asteroides infection is presented in a renal transplant recipient.
• The patient exhibited cavitary lung lesions and cutaneous pustules.
• These findings highlight the diverse manifestations of Nocardia infection.

Findings:

• Disseminated nocardiosis, though rare, can present with mucocutaneous lesions such as pustules.
• The initial presentation may not always be overtly pulmonary, complicating early diagnosis.
• This case underscores the importance of considering nocardiosis in the differential diagnosis of skin lesions in immunosuppressed patients.

Implications:

• Clinicians should maintain a high index of suspicion for disseminated nocardiosis in immunocompromised patients with unexplained pustules.
• Prompt diagnosis and appropriate antimicrobial therapy are critical for improving outcomes in disseminated nocardiosis.
• This case contributes to the understanding of Nocardia asteroides's clinical spectrum in solid organ transplant recipients.