A Primary Hydatid Cyst of the Gracilis: A Case Report

Abstract

Primary hydatid disease of the skeletal muscle without systemic involvement is rare. A 40-year-old woman presented with a painful mass in her medial left upper thigh. She was misdiagnosed as having a deep intramuscular abscess and a fine needle aspiration was performed, but the fluid came out crystal clear. Further inquiry revealed that her 16-year-old daughter had been operated on twice for liver and lung hydatid disease. Thus, a provisional diagnosis of hydatid disease was made. An echinococcal haemagglutination test was positive. Ultrasonography and magnetic resonance imaging findings were consistent with a type-2 hydatid cyst showing a 'water-lily' sign. The cystic mass within the left gracilis was resected en bloc. Adjunctive albendazole chemotherapy (400 mg/day) was prescribed for 3 months. At the 22-month follow-up, the patient remained free of symptoms.

An unusual cause of circulatory disorder due to a rare intermuscular hydatid cyst of cruris: A case report

“…The primary involvement of the skeletal muscle is rare due to the contractions on muscles and high lactic acid levels [11][12][13] . Muscle involvement has been observed in the muscles of the thoracic wall, pectoralis major, sartorius, biceps brachii, gracilis, tibialis anterior, supraspinatus, biceps femoris, gluteus maximus, gastrocnemius and paravertebral muscles [3,11,[14][15][16][17][18][19] . Multiple cysts may develop and are observed in 20% of the infected individuals.…”

Primary Cystic Echinococcosis in Psoas Muscle

“…In our case, serological tests were not performed. In addition to avoiding diagnostic biopsies and being prepared during surgery, anaphylactic shock after intraoperative cyst rupture and risk of iatrogenic spread of the disease should be kept in mind (8). Also, in our case, biopsy was not performed.…”

Primary hydatid cyst as a cause of pseudotumor of the buttock

“…This infrequency of muscular locations is explained by the fact that the larvae of the parasite, taking the portal circulation, stopped in 80% of cases at the liver and lungs, in addition, there are local implantation [4][5][6][7][8][9].…”

“…MRI is the first-choice diagnostic method in hydatid disease of the soft tissues. With its high contrast resolution, it provides a better study of the locoregional extension of the lesion and its relations with the nerve and vascular pedicles, while providing a meticulous analysis of the cyst walls [5,6,9,11] Treatment of muscular echinococcosis is surgical. The best option is total surgical excision without breaking through the wall.…”