HYDATID CYST LOCATED IN THE PSOAS MUSCLE CAUSING INTERMITTENT LIMB PAIN

INTERNATIONAL SCIENTIFIC RESEARCH CONGRESS DEDICATED TO THE 30TH ANNIVERSARY OF BAKU EURASIA UNIVERSITY, Baku, Azerbaycan, 28 Nisan 2022

Abstract

Cystic hydatid, also called cystic echinocosis; It is a zoonotic disease caused by the

larvae of the parasite called Echinococcus granulosus, where the adult form lives in the small

intestines of meat-eating animals such as dogs, wolves and foxes. After ingestion of parasite

eggs by mouth and respiration, it causes significant mortality and morbidity by forming cysts

in internal organs such as liver, lung, spleen and brain. Although rare, these cysts can be

localized in unexpected parts of the body. In this study we aimed to present a case of young

man who was infected by cystic hydatid located in his right psoas muscle.

A 32 year old male patient working as a farmar in rural area with no medical history

develops intermittent pain and parasthesia in right lower limb and inguinal region. After his

first examination in outer clinic he was referred to our center with prediagnosis of deep

venous thrombosis or possible compression of any mass to right iliac vein in psoas muscle

neighberhood. He was admitted to our department. The doppler ultrasound showed no

thrombosis in lower extremities and veins were coppressible. An CT scan of the abdomen

showed around 4-5 cm mass in right psoas muscle close to common iliac vein reported as

lymphangiomas. Operation was planned and through right retroperitoneal approach iliac vein

and artery were explored. The mass located on psoas muscle adherent to both iliac vein and

femoral nerve showed cystic formation. It was carefully dissected from the muscle, vein and

nerve. The sample was sent for pathologic diagnosis. The report came as cystic echinocosis.

The patient was treated with albendazole for 2 months postoperatively. He was very well on

his 6th month follow-up.

Cystic hydatid is reported in almost every internal organ but formation of cyst in

iliopsoas region on a muscle is rare. In the treatment of such lesions, surgical excision and

post-operative albendazole therapy provide adequate recovery.

Keywords: Cystic hydatid; psoas muscle; mass; limb pain; iliopsoas region.