N13.4

Clinical Causes: Kidney stones blocking the ureter Narrowing (stricture) of the ureter Tumors pressing on the ureter Congenital abnormalities present at birth Fibrosis or scarring from previous surgeries or infections Ureteral trauma or injury Urinary tract infections causing swelling or blockage Functional obstructions due to nerve issues

Key Symptoms: Pain in the flank or abdomen, which may come in waves A persistent dull ache or discomfort Urinary changes, including increased frequency or urgency Blood in the urine (hematuria) Fever and chills if an infection is present Nausea or vomiting in severe cases Swelling or palpable mass in the abdominal area

Diagnosis Path: The diagnosis of hydroureter typically involves a combination of medical history review, physical examination, and imaging tests. These may include: - Ultrasound: The primary non-invasive test used to visualize the ureter and detect dilation. - Intravenous pyelography (IVP): An X-ray test with contrast dye to evaluate urinary tract structure. - Computed tomography (CT) scan: Provides detailed images to locate obstructions or abnormalities. - Urinalysis and blood tests: To assess for infection, kidney function, and other related issues. Further assessments might be necessary to determine the underlying cause of the obstruction.

Treatment Protocols: Management of hydroureter depends on the underlying cause and severity of the condition. Common approaches include: - Observation: Mild cases without symptoms or significant dilation may be monitored over time. - Medical therapy: Use of medications to treat infections or reduce inflammation. - Surgical intervention: Required when there is a significant obstruction or anatomical abnormality. Procedures may involve: - Removing kidney stones or tumors - Correcting congenital abnormalities - Installing stents or diverting tubes to facilitate urine flow - Addressing reversible causes: Treating infections or trauma to restore normal function. Follow-up imaging and assessments are often necessary to ensure proper healing and the resolution of the dilation.