A huge renal cyst mimicking ascites: a case report

Abstract

BackgroundRenal cysts are common in old patients, and usually remain untreated. Giant renal cyst measuring more than 15 cm in diameter and containing more than 1500 mls of serous fluid are rarely seen. We report a case of a 75-year-old man with a giant right renal cyst.Case presentationA 75-year-old man presented with a five years history of suprapubic pain, abdominal distension. He had no urological symptoms. Physical examination revealed a distended abdomen with shifting dullness. Routine hematology, biochemistry, and serum tumor markers were within normal limits. Erroneously diagnosed as ascites on ultrasonographic examination. Abdominal paracentesis of supposed ascites was performed. The diagnosis of giant renal cyst was finally made by Computed tomography (CT) and patient underwent continuous percutaneous catheter drainage with negative pressure, whereby 8 liters of fluid were removed with negative cytology. Subsequent Computed tomography after 6 months revealed disparition of the cysts, and the patient remained asymptomatic.ConclusionGiant renal cysts are uncommon; we conclude that the CT remains the best exam in patients evaluated for giant renal cyst. This to the best of our knowledge is the largest renal cyst in the medical literature. Studies are needed with particular attention to the factors associated with renal cyst enlargement.

Transcatheter Arterial Embolization Therapy for Huge Renal Cysts: Two Case Reports

“…The safety of draining huge renal cysts has not yet been established, because there have only been a few reports about drainage of cysts measuring more than 15 cm in diameter. Riyach et al [ 11 ] reported the removal of 8 L of fluid from a giant cyst (35 × 32 × 22 cm) with no major complications.…”

Misdiagnosed Giant Renal Cyst Managed by the General Surgeon – A Case Report

“…Without ancillary investigations, misdiagnosis of giant renal cysts is common [1][2][3][4][5]. This is often because these lesions are not associated with any pathognomonic symptoms and signs.…”

“…Approximately 2/3 rd of humans have a kidney cyst detectable by CT scan by the age of 80 years [2]. Majority of these cysts are less than 2cm in size, benign, asymptomatic and treated conservatively [4]. However, giant renal cysts greater than 15cm or containing more than 1500mls of fluid are rare [5].…”

“…The bigger the lesion, the higher the chances of associated symptoms from the mechanical pressure effect on adjacent structures as well as functional damage to the affected kidney. Curiously, some patients with massive renal cysts still remain asymptomatic for long besides the presence of an abdominal swelling [4]. The accurate diagnosis of giant renal cysts is often missed in the absence of the appropriate ancillary investigations such as excretory urography studies, contrast-enhanced computerized tomography (CECT) scan or magnetic resonance imaging (MRI) [5,6].…”

Retroperitoneal Hodgkin Lymphoma with Giant Renal Cyst: Case Report

“…Most benign renal cysts are asymptomatic and require no treatment. However, cases of huge renal cysts have been very rarely reported [2]. Hodgkin lymphoma is a rare B-cell malignant neoplasm affecting approximately 9000 new patients annually, most patients with Hodgkin lymphoma present with supradiaphragmatic lymphadenopathy, retroperitoneal and inguinal lymphadenopathy occur less frequently [3].…”