Subcutaneous Hydatid Cyst Research Articles

Subcutaneous Hydatid Cyst of the Thigh

Subcutaneous Hydatid Cyst of the Thigh

PRİMER SUBKUTAN KİST HİDATİK

PRİMER SUBKUTAN KİST HİDATİK

Recurrent solitary hydatid cyst of the subcutaneous tissue

A 28-year-old male patient presented with a recurrent swelling in the left lateral chest wall just below the left axilla since seven years. Patient was operated for the same swelling eight years back and its biopsy report showed hydatid cyst. Patient had not taken any antihelminthic post operatively. Based on this, diagnosis of recurrent subcutaneous hydatid cyst was made and total cystectomy was done. Post operatively patient was started on albendazole. On follow up of one year there is no recurrence. Hydatid cyst is caused by the larval stage of Echinococcus. Four species of the Echinococcus tapeworm can produce infection in humans. E. granulosus and E. multilocularis are the most common, causing cystic and alveolar echinococcosis respectively, while E. vogeli and E. oligarthrus have rarely been associated with human infection. Hydatid cyst of the subcutaneous is extremely rare. This case report highlights the rare location of the hydatid cyst as well its recurrence in rare location.

Subcutaneous hydatid cyst located in the popliteal fossa

We report an uncommon case of a primary Echinococcus cyst that developed in the subcutaneous tissue of the right popliteal fossa, at the spot of a previous wasp sting, suggesting the possibility of an unusual transmission of the eggs by insects. This unusual presentation was initially considered as a Baker cyst until parasytological results verified Echinococcus hydatidosus, the larval form of Echinococcus granulosus, as diagnosis. However, the most common path of Echinococcus granulosus infection is through contact with a definitive host or by ingestion of ova through contaminated water or food. Transmission by insects should also be reconsidered in endemic areas.

Primary cystic echinococcosis in the subcutaneous gluteal region – a case report

Cystic echinococcosis (hydatidosis, hydatid disease) belongs to the group of the most severe parasitic diseases of man and is caused by metacestodes (larvae) of Echinococcus granulosus. Dogs and other canid mammals are the definitive hosts harbouring the adult stages of the tape worm in their intestines. Proglottids containing eggs are passed in the faeces of the definitive host. The eggs are ingested by intermediate hosts (i.e. sheep, cattle, swine etc.), in which the metacestode stage develops. Humans are accidental hosts and are infected by ingestion of eggs upon contact with contaminated water, vegetables, fur (of the dogs) or contaminated hands, the subsequently developing metacestodes are usually localized in the liver, the lungs and many other organs. We report on a case of a 57 year old female patient of Turkish origin suffering from a multicystic gluteal lesion diagnosed by CT- and MRT scan. Surgical intervention revealed a subcutaneous hydatid cyst of 15 cm in diameter. Parasitological-serological examinations revealed a highly positive specific antibody level against E. granulosus arc 5 antigen. The surgically resected cysts could be identified as E. granulosus sheep strain (genotype G1). Additionally to the surgical treatment the patient received albendazole postoperatively. Primary subcutaneous cystic echinococcosis without involving thoracic or abdominal organs is extremely rare and it has not been reported so far. Since soft tissue tumors may resemble hydatid cysts, careful preoperative evaluation is critical for proper handling during surgery to avoid possible anaphylactic reactions or spillage of protoscoleces, particularly when patients are deriving from endemic areas.

Subcutaneous hydatid cysts occurring in the palm and the thigh: two case reports

IntroductionHydatid cyst disease is common in some regions of the world and is usually located in the liver and lungs. This report presents two cases of primary hydatid cysts located subcutaneously: one in the medial thigh and one in the left palm between the index and middle fingers.Case presentationsA 64-year-old male farmer visited our hospital because a swelling on the right medial thigh had grown during the last year. Superficial ultrasound and computed tomography revealed a lesion resembling a hydatid cyst. A germinative membrane was encountered during surgical excision. Pathological examination was compatible with a hydatid cyst. The second case involved a 67-year-old male farmer who complained of a swelling that had grown in his left palm in the last year. The preliminary diagnosis was a lipoma. However, a hydatid cyst was diagnosed during surgical excision and after the pathological examination. The patient did not have a history of hydatid cyst disease and hydatid cysts were not detected in other organs. There has been no disease recurrence after following both patients for 3 years.ConclusionA hydatid cyst should be considered in the differential diagnosis of subcutaneous cystic lesions in regions where hydatid cysts are endemic, and should be excised totally, with an intact wall, to avoid recurrence.