Post-infectious glomerulonephritis in a patient with vesicorenal malacoplakia--coincidence or causal relationship?

[Malakoplakia in urology: six cases report and review of the literature]

Malakoplakia (MLP) is a rare chronic granulomatous disease that is believed to happen because of an alteration in the bacterial phagocytic system. This entity is characterized by one or multiple tumorations that can appear in any part of the body leading to it's misdiagnosing as a malignant condition. The genitourinary tract is frequently involved. Pathologic study of these lesions shows tissue infiltrated by inflammatory cells (macrophages and hystiocites) with intracytoplasmatic inclusions, which are known as Michaelis-Gutmann bodies. Usually is a benign condition self-limited and is associated with recurrent urinary tract infection (UTI), this condition has a good response to prolonged treatment with fluoroquinolones. We will report six cases that were diagnosed and treatment in our institution during an eight year period. We report still a review of the available literature.

Renal parenchymal malacoplakia: a rare cause of ARF with a review of recent literature

Renal parenchymal malacoplakia is a rare cause of acute renal failure. Traditionally, it was associated with a high mortality rate and commonly resulted in renal failure requiring renal replacement therapy. The authors report on a 70-year-old woman who presented with acute renal failure caused by renal parenchymal malacoplakia. Her renal function recovered after levofloxacin treatment. All cases reported in the English-language literature since 1990, when fluoroquinolone was first used to treat malacoplakia, were reviewed. Although some patients still had renal failure, with renal biopsy and fluoroquinolone treatment, the patient mortality rate from renal parenchymal malacoplakia is remarkably low.