Primary hydatid disease of the thigh. A rare location

The multifaceted musculoskeletal hydatid disease

Musculoskeletal hydatid disease is rare and can be located anywhere but most commonly the bone and muscles of the spine, pelvis, then the lower limbs. Imaging is essential for its diagnosis, performing the pre-therapeutic assessment, guiding possible percutaneous treatments, and providing post-therapeutic follow-up. Musculoskeletal hydatidosis can take several forms that may suggest other infections and tumors or pseudotumors. MRI and CT are superior for its diagnosis but ultrasound and radiography remain the most accessible examinations in developing countries where this parasitosis is endemic. In this review, we provide an overview of this disease and describe its different imaging patterns in soft tissue and bone involvement that should be sought to support the diagnosis.

Primary giant hydatid cysts of the thigh and the gluteal region: a case report

Primary musculoskeletal echinococcosis is rare and accounts for 2-3% of the patients with hydatid disease. We report a case of giant primary hydatid cysts of the thigh and the gluteal region in an 82-year-old female, who presented with a painful multiple palpable mass. The diagnosis was confirmed by imaging and serology. Total resection was performed through an extended lateral approach of the thigh and intraoperative findings revealed infected giant hydatid cysts. The postoperative outcome was uneventful. Albendazole drug (400mg per day) was given for the next 3 months. At 6 months follow-up, the patient was satisfied with no complications or recurrence.

A case report of primary isolated extrahepatic hydatid cyst of the soft tissues of the breast and thigh

INTRODUCTION

Hydatid Disease (HD), or hydatidosis or echinococcosis, is an endemic infection and a major public health concern in the Mediterranean region. At times it involves the primary soft tissues, such as in the breast and muscle, though this is quite uncommon even in endemic areas.

PRESENTATION OF CASES

A. A 31 year-old woman complained of a gradual progressive, painless lump in the left axillary tail of spence for two years. Examination revealed a firm lump measuring 5cm × 5cm, non-mobile, in the left axillary tail of Spence. B. A 32 year-old woman presented with mild and continuous pain in lateral aspect of left thigh. On examination, there was a round, non-tender, non-mobile mass in the lateral aspect of her left thigh. Preoperative imaging studies in both patients revealed evidence of HD. Both of the patients underwent surgery and received Albendazole twice per day for 10 days, before and three months after surgery.

DISCUSSION

The disease can be diagnosed by serological and radiological modalities, both of which are not definitive. Ultrasonography should be the first diagnostic modality of soft tissue HD, however, MRI can be used to understand clearly the surgical involvements of structures. The standard treatment of soft tissue HD is surgery using pericystectomy techniques, as well as anthelmintic therapy.

CONCLUSION

HD should be suggestive in soft tissues if mass is slowly developing and presenting with local extension, particularly in endemic countries. Excision of HD using pericystectomy technique is the first choice of intervention for HD of soft tissues.

An Iranian man with increased thigh mass due to a hydatid cyst

Background: Hydatid cyst is a zoonotic infection caused by Echinococcosis granulosus. Primary single-intramuscular hydatid disease is rare, even in endemic regions of the world. Here we report the case of exceptional thigh mass due to a hydatid cyst in an Iranian man.

Case presentation: An 86-year-old man, initially presented to Velayat teaching hospital surgery clinic in May 2017 with a single right-thigh mass, but physical examinations of other organs were unremarkable. Based on sonographic findings, the differential diagnosis was hydatid cyst. He underwent surgical resection of the cyst. Histopathological results confirmed the diagnosis. There was no evidence of recurrence of the lesion during the 23-month follow-up.

Conclusion: Increase thigh mass due to a hydatid cyst is a rare event. In endemic regions with the presence of hydatid cysts, especially physicians of surgical clinics have to consider differential diagnosis of hydatid cysts in unusual locations in case of such a lesion.

Uncommon musculoskeletal femoral hydatid cyst disturbs a female for a year: Case report

"Hydatid cyst" which also known as cystic Echinococcosis is a parasitic infestation caused by the larval stage of Echinococcus granulosus. The liver and lungs are the most sites to occur. Incidence in muscles is exceptionally rare. We report a case of a 36-year-old female presented with an uncomfortable mass in the upper medial of her right thigh without any presence of other symptoms. She lived in a rural area in Manbij, which is an endemic area of hydatid cysts in Syria. She was a shepherdess; therefore she had direct contact with sheep and dogs. Ultrasound examination showed a cyst located between adductor longus muscle and gracilis muscle closed to the deep femoral artery. The patient was treated with pharmaceutical therapy for a week before cystectomy, which was done under general anesthesia. The cyst was dissected between the fibers of adductor longus muscle from the lateral side and fibers of the gracilis muscle from the medial side. The cyst with all its layers was resected. Musculoskeletal Echinococcosis is a rare disease, because of intramuscular growth of cysts is restricted by muscle's contractility, the muscles are undesirable habitat for Echinococcus granulosus and because of the hepatic barrier role. Many cysts are revealed by complications such as nerve compressions, infections simulating an acute abscess or a malignant tumor. Hydatid cyst present as mass of soft tissue, particularly in endemic areas, as a result of contaminated water. MRI considered the best technique in the diagnosis.

Primary infected hydatid cyst of the thigh in a young lady; case report with literature review

Hydatid disease present in certain parts of the world. Infection of the musculoskeletal system occur in less than 0.5%.

A 24-year-old lady had a painful mass in the inner aspect of the right thigh. MRI of the thigh showed a mixed signal intensity lesion measured about 65*100 mm, the mass was related to the muscle and the superficial femoral artery and its cavity had multiple septations.

During surgery an infected hydatid cyst of the muscle was found, evacuation was done with removal of the cyst. The patient was discharged next day and she received anthelminthic medications for 3 months.

Hydatid cyst of the muscles present with gradually enlarging mass or complications such as nerve compression, infection or rupture.

Treatment may be medical using anthelminthic medications. Complete surgical excision is the best surgical option; involvement of other organs should be excluded. Follow-up is recommended.

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Hydatid cysts could affect various body parts causing wide range of clinical presentations.

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Infection is one of the common complications of hydatid cysts.

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Surgery is the main treatment option in most of the cases.

Hydatid cyst in the vastus lateralis muscle: a case report

Hydatidosis is a zoonotic disease; human infection occurs through the consumption of food and water contaminated with the eggs of parasites of the Echinococcus type. While the liver is the most common site of infection, involvement of the musculoskeletal system is extremely rare. In the context of musculoskeletal involvement, the spine is the most commonly infected site, while the muscles are rarely infected and account for approximately <1% of cases. It has been suggested that muscles provide an unsuitable environment for the parasite, because of the presence of lactic acid. The cysts appear as slow-growing masses of soft tissue, and signs of inflammation and fistulization often coexist. We report a rare case of an hydatid cyst located in the vastus lateralis muscle of a 41-year-old man. Muscular echinococcosis is an extremely rare disease. A MRI evaluation should be taken into account as gold standard in the diagnosis. Surgical cystectomy is often indicated, and an excision with wide margins is mandatory to avoid the rupture of the cyst and anaphylaxis. Adjuvant pharmacological therapy is recommended to minimize the risk of recurrence.

Primary musculoskeletal hydatid cyst of the thigh: Diagnostic and curative challenge for an unusual localization

Primary muscular echinococcosis is an uncommon localization of hydatid cysts. The nonspecific clinical presentation and possible post-therapeutic complications lead to problems for the diagnosis of this infection and the support of the patient. The authors describe an unusual case of double hydatid cyst of the vastus intermedius muscle. After a precise preoperative evaluation based on clinical, radiological and biological examinations, a surgical excision by pericystectomy combined with perioperative chemotherapy enabled the authors to treat the patient and to prevent postoperative complications. The diagnostic tools and the treatment of this particular type of echinococcosis are discussed.