Cysticercus of Taenia solium. A evaginated whole bladder worm from pork. x40

A section of cysticercus showing a solid larva of Cysticercus cellulosae, larval stage of Taenia solium.

Cysticerci of Taenia solium liberated from host tissue. Note protruding scoleces.

Cysticerci of Taenia solium in pig muscle.

A blader, Cysticercus cellulosae, is exposed from the fibrotic capsule.

The hooklets on rostellum of Cysticercus cellulosae.

The parenchymatous tissue of Cysticercus cellulosae shows thick tegumental syncytium and calcospherules (arrows). Hematoxylin-eosin stained. x400.

Cyst wall of Cysticercus cellulosae. Note the thin tegument and the excretory canals dispersed in mesenchymal tissue. Hematoxylin-eosin stained. x400.

A section of parenchymatous portion of Cysticercus cellulosae shows invaginated scolex, spiral canal and vestibule. x100.

A scolex of Taenia solium. The scolex is roughly quadrate, with a diameter of about 1mm, has four large, deeply cupped suckers and a conspicuous, rounded rostellum, armed with a double row of large and small hooks, numbering 22 to 36 and measuring 140 to 200 um and 100 to 150 um, respectively, in length. x40

The scolex of Taenia saginata shows four muscular suckers and the rostellum without a hooklet.

The scolex of Taenia solium shows four muscular suckers and the rostellum with hooklets.

A mature proglottid of Taenia solium, acetocarmine stained. Note an accessory ovarian lobe in between two ovarian lobes.