Hydatid Cyst in the Lumbar Paravertebral Muscle: A Case Report.

Homa Sadeghian,Rouzbeh Motiei-Langroudi

doi:10.7759/cureus.5353

Abstract

A hydatid cyst is a zoonotic disease caused by the worm Echinococcus granulosus. In endemic regions, it is a well-known differential diagnosis of cystic lesions, especially in the liver, lungs, brain, and vertebral column. Primary paravertebral muscle involvement, however, is rarely reported. In the current report, we present the case of an 11-year-old girl complaining of back pain with a well-defined single cystic lesion in her lumbar paravertebral multifidus muscle evident in imaging studies. The patient had no concomitant lesion in her systemic evaluation. The cyst was resected totally with its daughter cysts, and the pathology confirmed the diagnosis of a hydatid cyst. Although the paravertebral muscle is an extremely rare site of infection for a hydatid cyst, it should be kept in mind in mass lesions with a cystic nature.

Highlights

A hydatid cyst or hydatidosis is a zoonotic disease with a worldwide distribution
We present the case of an 11-year-old girl complaining of back pain with a well-defined single cystic lesion in her lumbar paravertebral multifidus muscle evident in imaging studies
The paravertebral muscle is an extremely rare site of infection for a hydatid cyst, it should be kept in mind in mass lesions with a cystic nature

Summary

Introduction

A hydatid cyst or hydatidosis is a zoonotic disease with a worldwide distribution. The disease may be responsible for approximately 1% of surgeries for mass lesions in endemic regions [1,2,3]. Musculoskeletal involvement is rare and contributes to 0.5%-5% of cases of hydatid cysts and is almost always secondary to liver or lung infection [2]. There are only a few cases reporting the primary involvement of paravertebral muscles [2,5,8,9,10]. We present a case of a single hydatid cyst involving the paravertebral multifidus muscle in a young girl complaining of back pain. How to cite this article Sadeghian H, Motiei-Langroudi R (August 09, 2019) Hydatid Cyst in the Lumbar Paravertebral Muscle: A Case Report. The mother and all daughter cysts were resected along with a very thin layer of surrounding muscle (Figure 2). The mother lesion (red arrow) with a daughter cyst (green arrow) after surgical resection. The patient and her family had given their consent for all diagnostic and therapeutic (surgery and further medications) procedures, as well as the publication of the report

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Disclosures