Sarmast Shoushtari, Talaizadeh A H, Fazeli T, Rafiei A, Maraghi S, Jelowdar M.
Muscular Hydatidosis: A report of 3 cases.
Pak J Med Sci Jan ;21(2):220-2.

Hydatidosis or cystic echinococcosis is an important zoonotic parasitic disease caused by a small taenid-tape worm (Echinococcus granulosus)with worldwide distribution, particularly in developing countries where many rural inhabitants live under poor sanitary conditions. The majority of hydatid cysts are located in liver and lungs and muscular hydatid cysts are rare. This is a report of three muscular hydatid cysts from Ahvaz, southwestern part of Iran. The first patient was a 64-year-old man with liver and left thigh cysts. The muscular cyst was measured 3 × 3 cm in diameter. The second case was a 32 year male with left gluteal muscle mass of firm consistency measured 3 × 3 × 2 cm. The third case was an eighty-year old male with a soft mass tissue and painless in the left thigh measured 5 × 5 × 8 cm. Complete excision of muscle cysts was done and histopathological examination of specimens confirmed the hydatid cyst. Cysts of cases 1 and 2 were fertile with laminated and germinal layers and protoscolices and case 3 was unfertile. In the third case laminated and germinal layers were observed without any protoscolices.

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