Ga FAPI PET in a Renal Transplant Patient with Disseminated Nocardiosis-A Worthwhile Imaging Modality for Infection Imaging.

Nocardiosis, an opportunistic infection occurs in immunodeficient population commonly in organ transplant recipients. Patients with risk factors likely chronic corticosteroids and immunosuppressants consumption usually have a higher tendency for disseminated infections with formation of deep abscesses at various sites in the body. Functional imaging with PET, being a whole body imaging offers information about the various sites of disease, thereby assisting the treatment planning, treatment response and also to identify the sites of biopsy. 68Ga FAPI PET serves this purpose as previous studies in various other infections have shown activated fibroblasts with increased FAP expression at the infective foci.