Nocardiosis mimicking lung cancer in a heart transplant patient with end-stage renal disease

Respiratory Medicine Case Reports
Lea DeterdingHans-Jürgen Seyfarth

Abstract

Nocardiosis is a rare bacterial opportunistic infection that most commonly manifests as lung disease. However, disseminated infection and abscess formation can occur. Due to diverse radiographic findings and difficult cultivation it is not an easy diagnosis to make. Antibiotics such as Trimethoprimsulfamethoxazole alone or in combination with imipenem or imipenem in combination with amikacin need to be administered over a period of at least six to twelve weeks. We report a case of a 64-year old female heart transplant recipient requiring dialysis who suffered from dyspnea and a productive cough among other symptoms. Computed tomography revealed a tumor in the left upper lobe suggesting lung cancer. Both transbronchial and transthoracic biopsy could not confirm a malignant disease. Finally, Nocardia nova was isolated from a bronchoalveolar lavage and specific antibiotic treatment was initiated. As a result, the mass in the left upper lobe significantly regressed after a few weeks.

References

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Mar 23, 2017·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·David LebeauxUNKNOWN European Study Group for Nocardia in Solid Organ Transplantation
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Methods Mentioned

BETA
X-ray
biopsy
bronchoalveolar lavage

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