Malacoplakia in a renal transplant recipient.

Area of Science:

• Nephrology
• Pathology
• Transplant Surgery

Background:

• Malacoplakia is a rare inflammatory disorder.
• Histologically identified by Michaelis-Gutmann bodies within histiocytes.
• Most commonly affects the urinary tract in immunocompromised individuals.

Purpose of the Study:

• To describe a rare case of malacoplakia affecting renal allograft parenchyma.
• To present the associated imaging and histological findings.
• To review existing literature on renal malacoplakia.

Main Methods:

• Case report of a renal transplant recipient.
• Analysis of imaging studies (e.g., CT, MRI).
• Histopathological examination of the allograft tissue.

Main Results:

• Confirmed diagnosis of renal allograft parenchymal malacoplakia.
• Detailed description of characteristic imaging findings.
• Identification of pathognomonic Michaelis-Gutmann bodies on histology.

Conclusions:

• Renal allograft malacoplakia is an exceptionally rare complication.
• Early diagnosis requires awareness of its potential presentation in transplant recipients.
• Further literature review supports the rarity and unique presentation of this case.