01:146:328 Lecture Notes - Lecture 2: Hymenolepis Nana, Alveolar Hydatid Disease, Taenia Solium
20 May 2016
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Egg ingested --> egg hatches in intestine --> onchosphere --> penetrates intestine. -> circulatory system --> parenteral site --> develops into metacestode ii. iii. Protoscolex attached to germinative layers where each one can develop into an adult worm in dh a. Secondary cyst that are attached to gem layer through pedicel. Hydrated sand- secondary cyst/ protoscolices breaks free and settle to bottom of cyst a. b. Cyst infiltrates host tissue liver: multilocularis a. b. c. d. a. b. In all species, ih ingested by dh i. ii. Adult worm in dh: taenia solium --> pork tapeworm. Penetrates intestine and migrates to parenteral site and becomes a cysticercus a. b. If there is not to many then there if barely any symptoms. Space-occupying lesion --> pressure on tissue interferes with function, if decrease circulation can lead to necrosis i. ii. iii. iv. Can lead to loss of vision or eye.
