Toxoplasmic encephalitis on positron emission tomography

Toxoplasmic encephalitis on positron emission tomography

A 31-year-old woman presented with a 2-day history of rightsided weakness, numbness and paresthesia. She was diagnosed with acquired immunodeficiency syndrome (AIDS) 8 months before. Her most recent CD4 count was 19 cells/cmm and her viral load was 15,000 copies/mL, and she reported taking antiretroviral therapy plus prophylactic trimethoprim-sulfamethoxazole and azithromycin. Analysis of her c...

The effect of fasting on Positron Emission Tomography (PET) imaging

As a nuclear approach, Positron Emission Tomography (PET) is a functional imaging technique which is based on the detection of gamma ray pairs emitted by a positron-emitting radionuclide. There are certain limitations to this technique such as normal tissue uptake. Therefore, it has been recommended that patients prepare before scanning. Fasting for a short while before PET imaging is an exampl...

Fluorodeoxyglucose positron emission tomography findings in NMDA receptor antibody encephalitis.

A 28-year-old woman presented with a seven day history of insomnia, and changes in mental status. She was agitated, confused with visual hallucinations and combative behaviour. On day 4, she developed partial complex seizure with impairment of awareness and automatisms of lip smacking. During the first 2 weeks, she had become increasingly drowsy and confused, her level of conciousness was sever...

Imaging Cellular Proliferation in Prostate Cancer with Positron Emission Tomography

Prostate cancer remains a major public health problem worldwide. Imaging plays an important role in the assessment of disease at all its clinical phases, including staging, restaging after definitive therapy, evaluation of therapy response, and prognostication. Positron emission tomography with a number of biologically targeted radiotracers has been demonstrated to have potential diagnostic and...

Toxoplasmic Encephalitis