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尿频、脓尿、胸腔积液、血尿、尿痛、尿急
A calyceal diverticulum is a cystic cavity lined by transitional epithelium within the renal parenchyma, communicating with the pelvis or a calyx through a narrow channel. It has no secretory function but urine can reflux into it. First described by Rayer in 1841, it may be multiple, located anywhere in the kidney, though the upper calyx is more often involved.
Frequency; pyuria; pleural effusion; hematuria; dysuria; urgency
The cause is unclear; similar incidence in children and adults suggests an embryologic basis. In early embryogenesis certain 3rd and 4th ureteric branches form and then regress; if one persists as a separate branch it may form a diverticulum. By mechanism it is congenital or acquired; most childhood cases are congenital.
Observation, surgery when symptomatic
Treat stones and infection that complicate the diverticulum.
It is recommended to visit the urology department; before the visit you may first book an appointment and connect with experts through this platform.
Warm reminder: The above information is provided for health education reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek care at a regular hospital in time.
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