"A helpful mnemonic for remembering these stages is "Vegans Can't Get Neurocysticercosis"."
"Neurocysticercosis is a parasitic CNS infection caused by the pork tapeworm Taenia solium, which is endemic in most low-income countries where pigs are raised. This form of cysticercosis is a relevant cause of seizures in endemic areas."
"Infection, which leads to extraintestinal disease (including neurocysticercosis), usually occurs as a result of eating food or drinking water contaminated by human faeces containing T. solium eggs. This is distinct from the 'normal' life cycle in which the undercooked pork is eaten and the larval cysts contained within mature into an adult intestinal tapeworm 3."
"Extra-intestinal infection undergoes specific clinical and imaging changes at it progresses through four stages of infection 1."
Expected headings
"Stages"
"Location"
"Parenchymal"
"Subarachnoid/intraventricular"
"Stage"
"Vesicular"
"Colloidal vesicular"
"Granular nodular"
"Nodular calcified"
"colloidal vesicular: parasite dies within 4-5 years 1 untreated, or earlier with treatment, and the cyst fluid becomes turbid; as the membrane becomes leaky oedema surrounds the cyst; this is the most symptomatic stage"
"colloidal vesicular: parasite dies within 4-5 years 1 untreated, or earlier with treatment, and the cyst fluid becomes turbid; as the membrane becomes leaky oedema surrounds the cyst; this is the most symptomatic stage"
"granular nodular: oedema decreases as the cyst retracts further; enhancement persists"
"nodular calcified: end-stage quiescent calcified cyst remnant; no oedema"