Malakoplakia, a medical, surgical, pathological and radiological enigma, is an infrequent chronic inflammatory condition that can affect many organ systems, including the gastrointestinal tract, integument, skeletal system and genitourinary tract. Review of the literature has shown that malakoplakia presents in paediatric as well as adult populations, and that it is associated with impaired immune function. Variable clinical manifestations as well as the sometimes non-specific radiological findings of malakoplakia can be misleading, making diagnosis quite difficult. We present a clinical case of renal malakoplakia mimicking a malignant renal carcinoma in a 62-year-old woman. This report highlights the importance of awareness of malakoplakia in the differential diagnosis for renal masses and renomegaly. This case can serve as a reminder that things are not always what they seem, and it reinforces the idea that unusual disease entities should be explored to aid in achieving a correct diagnosis and, thus, potentially avoid unnecessary treatment.
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