The difference between renal fluid accumulation and hydronephrosis

Jul 19, 2024 Source: Cainiu Health
Disease description:

A friend of mine has always been in good health and has never had any major illnesses. During a recent hospital checkup, he was diagnosed with hydronephrosis. I have previously heard of the term "renal effusion," and I would like to ask what the difference is between these two conditions.

Doctor's answer (1)
Dr. Yang Ziqi
The difference between renal fluid accumulation and hydronephrosis: 1. **Etiology**: The causes of the two conditions partially overlap; both may be caused by congenital malformations, urinary tract stones, tumor compression, etc. However, hydronephrosis emphasizes obstruction of the lower urinary tract or other causes such as benign prostatic hyperplasia. 2. **Symptoms**: Patients with renal fluid accumulation may experience symptoms such as flank pain, fever, nausea, and vomiting, whereas patients with hydronephrosis commonly present with difficulty urinating, abdominal mass, hematuria, and other symptoms. However, these symptoms are not absolute and the specific presentation should be evaluated according to individual circumstances. 3. **Treatment**: In terms of treatment principles, both conditions require targeted management based on their underlying causes. If caused by inflammation, antibiotics may be used; if surgical intervention is required, procedures such as percutaneous nephrostomy or ureteral reimplantation may be involved.