In all the cases, the microscopic examination revealed the presence of hooklets
scattered on a degenerated necrotic background.
Essential for the cytodiagnosis of cysticercosis is identification of the parasitic fragments including its bladder wall and hooklets
. Parasitic fragments may comprise bluish, fibrillary structures, sometimes with honeycombing, calcospherules, tegument thrown into rounded wavy folds, scolex with hooklets
, and hyaline membrane surrounding it [9-11].
Echinococcus is derived from the Greek echinos meaning hedgehog or sea urchin and kokkus meaning berry, which describes the numerous, spiny hooklets
seen in the berrylike scolex of the larva form of the parasite.
These botfly larvae are fairly large, about 2 centimeters long, and have large oral hooklets
that they attach to the stomach wall.
Hemispermatophore inner capsular lobe with "crown" of 15 spines or hooklets
, median lobe with sclerotized apophyses.
Barbules, smaller fibers that branch from the barbs, can sport small hooklets
that lock onto adjacent barbs or barbules.
Each has a tiny head, with suckers - and sometimes with hooklets
- to cling to the bowel wall.
The moderate proportion of nonreproductive homoplasy centers around the loss of hooks and hooklets
. The Eucestoda show very few homoplasious losses.
To our surprise, we found the cytology smears contained characteristic parasitic elements such as scolices, hooklets
, homogeneous eosinophilic-laminated membrane [Figure 1], and calcospherules; a diagnosis of hydatid cyst in parotid gland was made.
Cytological smear prepared from the sediments (hydatid sands) of cystic fluid showed many scolices, brood capsules and detached hooklets