# Solitary Hydatid Cysts of the Body: Analysis of 1303 Cases

## TL;DR

This study analyzed 1303 cases of solitary hydatid cysts, showing they most commonly occur in the liver and lungs, with surgery as the main treatment.

## Contribution

The study provides a comprehensive analysis of solitary hydatid cysts across various anatomical locations using a large single-center dataset.

## Key findings

- Solitary hydatid cysts were predominantly found in the liver (74.3%) and lungs (19.1%).
- Surgical intervention was the primary treatment for all cyst locations.
- Medical therapy was more frequently used for liver and spleen cysts compared to other regions.

## Abstract

This study aimed to investigate solitary hydatid cysts occurring in various anatomical locations.

A retrospective single-center analysis was conducted on 1303 consecutive cases of solitary hydatid cysts identified across different body regions between 2015 and 2024.

Solitary hydatid cysts accounted for 67.7% (1303/1926) of all treated cases. Among the 1303 patients, 609 (46.7%) were male and 694 (53.3%) were female. The mean age was 35.3 ± 20.4 years, with a range from 2 to 87 years. Among pediatric cases, 153 (43.6%) were female and 198 (56.4%) were male, whereas among adults, 541 (56.8%) were female and 411 (43.2%) were male (P < .01). Cyst localization was predominantly hepatic (969 cases, 74.3%), followed by pulmonary (250 cases, 19.1%). Other sites included the spleen (21 cases, 1.6%), muscle tissue (14 cases, 1.1%), kidneys (11 cases, 0.8%), bones (10 cases, 0.8%), intracranial areas (8 cases, 0.6%), cardiac regions (6 cases, 0.5%), mediastinum (3 cases, 0.2%), pelvic space (3 cases, 0.2%), subcutaneous and soft tissue (3 cases, 0.2%), omentum (3 cases, 0.2%), diaphragm (1 case, 0.1%), and pancreas (1 case, 0.1%). The mean diameter of hydatid cysts was 72.5 ± 33.2 mm (range: 10-230 mm). Surgical intervention was the primary treatment across all cases; however, medical therapy was more frequently selected for cysts located in the liver and spleen than in other anatomical regions.

Solitary hydatid cysts typically affect the liver and lungs but may arise in any location. Surgery remains the primary treatment across all sites.