Calcified Granulomatous Pneumocystis Jirovecii Pneumonia in a Toddler with Severe Combined Immunodeficiency—A Case Report

Pneumocysis jirovecii pneumonia (PJP) is a type of originating from the fungus Pneumocystis jiroveci and major cause serious in immunocompromised conditions. PJP typically appears as bilateral diffuse pulmonary infiltrates. Granulomatous an uncommon form pneumocystis infection, occurring only 3% to 5% patients. Calcification exceptional. We present 9-month-old boy affected by Severe Combined Immunodeficiency (SCID) that has been diagnosed at age 7 months following lung infection. He underwent routine total-body magnetic resonance imaging (MRI) prior allogeneic hematopoietic stem cell transplantation (HSCT). The MRI showed significant alterations parenchyma; hence, computer tomography was performed showing presence 11 calcified granulomatous nodules. report unique case toddler SCID. Awareness this rare yet possible presentation patients with SCID important given potential clinical implications when managing patient undergoing HSCT it further enhances importance advanced radiologic HSCT.