Renal Actinomycosis Mimicking Renal Tumor: Case Report
Department of Internal Medicine and Psychiatry, Geshi Hospital, Kochi, Japan.Southern Medical Journal (Impact Factor: 0.93). 04/2004; 97(3):316-8. DOI: 10.1097/01.SMJ.0000072362.01568.D7
A 68-year-old man was admitted after fever and general fatigue with severe inflammatory signs and anemia. T1- and T2-weighted magnetic resonance imaging showed low- to isointensity and low-intensity tumor in the right kidney, respectively, suggesting renal actinomycosis. However, the right kidney was explored transabdominally because the possibility of renal malignant lymphoma could not be excluded. After nephrectomy, characteristic colonies of Actinomyces were seen microscopically, and the histologic diagnosis was renal actinomycosis. The patient was treated with antibiotics and made good progress after operation. This case highlights the importance of magnetic resonance imaging for the diagnosis of renal actinomycosis.
Article: Renal actinomycosis: A case report[Show abstract] [Hide abstract]
ABSTRACT: This report describes the case of a 26-year-old patient hospitalized for spontaneous abdominal pain. Palpation during clinical examination demonstrated a mass in the right abdomino-pelvic cavity. Radiological examination visualized the presence of grains suggestive of actinmycosis. The patient responded favorably to antimicrobial therapy. Actinomyces israeli is a gram-positive anaerobic bacterium that can cause tumor-like lesions usually on the face and neck and more rarely on retroperitoneal structures. Because renal involvement can require nephrectomy, diagnosis of renal actinmycosis must be made during pre-operative work-up. Ultrasound-guided needle biopsy of the lesion can achieve diagnosis and avoid nephrectomy since medical treatment using antimicrobial therapy is effective.Médecine tropicale: revue du Corps de santé colonial 07/2006; 66(3):266-8.
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ABSTRACT: Actinomycosis of the kidney is a rare bacterial infection, which poses a diagnostic challenge. Because the diagnosis can mimic a renal tumor, excision is often the diagnostic and therapeutic option. We describe the first case of renal actinomycosis in a woman with previously diagnosed renal cell carcinoma of the contralateral kidney. In contrast to most cases, sparing of her only functioning kidney was the priority that prompted a conservative diagnostic approach and treatment, as equally effective as surgery.Infectious Disease in Clinical Practice 09/2012; 20(5):362-364. DOI:10.1097/IPC.0b013e31824f8c34
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ABSTRACT: Renal actinomycosis is a rare infection caused by fungi of the genus Actinomyces. A 74-year-old male was admitted to our hospital because of gross hematuria with urinary symptoms and intermittent chills. Computed tomography of the abdomen showed thrombosis in the left renal vein and diffuse, heterogeneous enlargement of the left kidney. After nephrectomy, sulfur granules with chronic suppurative inflammation were seen microscopically, and the histopathological diagnosis was renal actinomycosis. Our case is the first report of renal actinomycosis with renal vein thrombosis.Clinical nephrology 02/2012; 77(2):156-60. DOI:10.5414/CN106885 · 1.13 Impact Factor
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