60 RENAL CYSTS General Discussion Renal masses can be categorized into cysts, tumors, and inflammatory lesions. Autopsy results have shown that about 50% of persons older than 50 years have one or more renal cysts. Simple cysts usually are asymptomatic, but may cause flank pain, abdominal pain, hematuria, or a palpable mass. Malignant lesions may produce the same symptoms and may be associated with paraneoplastic syndromes. Inflammatory lesions are almost always associated with a history of fever, chills, or urinary tract infection. Simple renal cysts must be distinguished from complex cysts and solid masses. The ultrasound criteria for the diagnosis of a simple renal cyst include the following: (1) Spherical or ovoid shape. (2) Absence of internal echoes. (3) Presence of a thin, smooth wall that is separate from the surrounding parenchyma. (4) Enhancement of the posterior wall, indicating ultrasound transmission through the water-filled cyst. When these ultrasound criteria are met, the likelihood of malignancy is extremely small. Asymptomatic patients with incidental renal cysts that meet these criteria require no additional evaluation. When visualization of the mass is inadequate on ultrasonography or when the ultrasound shows evidence of calcifications, septa, or multiple cysts that may obscure a potential malignancy, renal CT scanning with contrast should be performed. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: ARTHRITIS AND ARTHRALGIA HAIR LOSS HYPOTHYROIDISM TRANSAMINASE ELEVATION Stay updated, free articles. Join our Telegram channel Join Tags: Instant Work-ups A Clinical Guide to Medicine Aug 17, 2016 | Posted by admin in PEDIATRICS | Comments Off on RENAL CYSTS Full access? Get Clinical Tree
60 RENAL CYSTS General Discussion Renal masses can be categorized into cysts, tumors, and inflammatory lesions. Autopsy results have shown that about 50% of persons older than 50 years have one or more renal cysts. Simple cysts usually are asymptomatic, but may cause flank pain, abdominal pain, hematuria, or a palpable mass. Malignant lesions may produce the same symptoms and may be associated with paraneoplastic syndromes. Inflammatory lesions are almost always associated with a history of fever, chills, or urinary tract infection. Simple renal cysts must be distinguished from complex cysts and solid masses. The ultrasound criteria for the diagnosis of a simple renal cyst include the following: (1) Spherical or ovoid shape. (2) Absence of internal echoes. (3) Presence of a thin, smooth wall that is separate from the surrounding parenchyma. (4) Enhancement of the posterior wall, indicating ultrasound transmission through the water-filled cyst. When these ultrasound criteria are met, the likelihood of malignancy is extremely small. Asymptomatic patients with incidental renal cysts that meet these criteria require no additional evaluation. When visualization of the mass is inadequate on ultrasonography or when the ultrasound shows evidence of calcifications, septa, or multiple cysts that may obscure a potential malignancy, renal CT scanning with contrast should be performed. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Related posts: ARTHRITIS AND ARTHRALGIA HAIR LOSS HYPOTHYROIDISM TRANSAMINASE ELEVATION Stay updated, free articles. Join our Telegram channel Join
