sessile hydatid


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hydatid

 [hi´dah-tid]
2. any cystlike structure.
hydatid disease an infection, usually of the liver, caused by larval forms (hydatid cysts) of tapeworms of the genus Echinococcus, and characterized by the development of expanding cysts. In the infection caused by E. granulosus, single or multiple cysts that are unilocular in character are formed, and in that caused by E. multilocularis, the host's tissues are invaded and destroyed as the cysts enlarge by peripheral budding. Called also echinococcosis.
hydatid of Morgagni a cystlike remnant of the müllerian duct attached to a testis or fallopian tube.
sessile hydatid the hydatid of Morgagni connected with a testis.
stalked hydatid the hydatid of Morgagni connected with a fallopian tube.

appendix of testis

[TA]
a vesicular nonpedunculated structure attached to the cephalic pole of the testis; a vestige of the cephalic end of the paramesonephric (müllerian) duct.

sessile hydatid

Morgagnian hydatid connected with a testicle.
See also: hydatid

hydatid

1. a hydatid cyst.
2. any cyst-like structure.

hydatid cyst
the larval stage of the tapeworm Echinococcus granulosus or E. multilocularis, containing daughter cysts, each of which, if fertile, will have many protoscoleces; it is the cause of hydatid disease. Called also Echinococcus cyst and hydatid.
hydatid disease
an infection in humans, sheep, cattle, pigs and horses, and occasionally in many other mammal species. The infection is usually of the liver or lungs, caused by larval forms (hydatid cysts) of tapeworms of the genus Echinococcus, and characterized by the development of expanding cysts. In the infection caused by E. granulosus, single or multiple cysts that are unilocular in character are formed, and in that caused by E. multilocularis, the host's tissues are invaded and destroyed as the cyst(s) enlarge by peripheral budding. Called also echinococcosis.
false hydatid
see cysticercustenuicollis.
Morgagni's hydatid
sessile hydatid
the hydatid of Morgagni connected with a testis.
stalked hydatid
the hydatid of Morgagni connected with an oviduct.