"Cerebral toxoplasmosis, also known as neurotoxoplasmosis, is an opportunistic infection caused by the parasite Toxoplasma gondii. It typically affects patients with HIV/AIDS and is the most common cause of cerebral abscess in these patients 6."
"T1: may be difficult to identify, but are typically isointense or hypointense 5"
"T1 C+ (Gd): lesions often demonstrate ring enhancement or nodular enhancement. An еccentric target sign on post-contrast images is also typical for this entity. 8,9"
"MR perfusion: lower perfusion compared to lymphoma, with relative cerebral blood volume"
"Cerebral toxoplasmosis, also known as neurotoxoplasmosis, is an opportunistic infection caused by the parasite Toxoplasma gondii. It typically affects patients with HIV/AIDS and is the most common cause of cerebral abscess in these patients 6."
"Toxoplasma gondii is found ubiquitously and antibodies to the organism can be identified in 30% of all humans. The rate varies greatly from population to population and has a wide reported prevalence: from 6-90% 5. In most cases, the infection is asymptomatic. However, in immunocompromised patients (especially those with HIV/AIDS), infection can become established. Cerebral toxoplasmosis is found in 10-34% of autopsies on patients with HIV/AIDS 5."
"Toxoplasma gondii is an intracellular parasite that infects birds and mammals. Its definitive host is the cat and other Felidae species. Excretion of oocytes in its faeces followed by contaminated uncooked consumption by humans can lead to human infection. In immunocompetent individuals, it primarily causes a subclinical or asymptomatic infection. In immunocompromised individuals (e.g. AIDS patients), toxoplasmosis is the most common cause of a brain abscess."
"In general, biopsy is not required and treatment is initiated and follow-up imaging performed. The exception to this rule are patients who have atypical imaging features (e.g. single lesion) or who are seronegative for Toxoplasma gondii 6."
"Toxoplasma gondii is found ubiquitously and antibodies to the organism can be identified in 30% of all humans. The rate varies greatly from population to population and has a wide reported prevalence: from 6-90% 5. In most cases, the infection is asymptomatic. However, in immunocompromised patients (especially those with HIV/AIDS), infection can become established. Cerebral toxoplasmosis is found in 10-34% of autopsies on patients with HIV/AIDS 5."
"an outermost zone of encysted organisms; Toxoplasma lesions do not have a capsule"
"reduced Cho, Cr and NAA"
Expected headings
"PET-CT and thallium SPECT"
"an outermost zone of encysted organisms; Toxoplasma lesions do not have a capsule"
"calcification: seen in treated cases; may be dot-like or thick and 'chunky'"
"reduced Cho, Cr and NAA"