Hydatid Cyst: WHO Stage and First-Line Treatment (2025)
Gives the WHO 2025 first-line treatment for a hydatid cyst.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Organ
- Liver
- Ultrasound stage
- CE1: single cyst with a double wall (active)
- Largest cyst diameter in cm
- 7
- Complicated
- No
- Communication with the bile ducts
- No
- Multiple cysts, mixed stages, or several organs
- No
- Facility tier
- Tier 3: plus laparoscopy, PAIR, catheterization, CT
- Weight in kg
- 60
Result: Liver CE1 7 cm: PAIR (puncture, aspiration, injection, re-aspiration) with albendazole (tier 3-4).
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Organ
- Ultrasound stage
- Largest cyst diameter in cm
- Complicated (rupture, infection, fistula, compression)
- Communication with the bile ducts
- Multiple cysts, mixed stages, or several organs
- Facility tier
- Weight in kg (for albendazole)
How this is calculated
Citation
WHO guidelines for the treatment of patients with cystic echinococcosis. Geneva: WHO; June 2025. Recommendations 1-7, Fig. 1 (pp. viii-x) and the implementation considerations. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.