Thecoma of the ovary is a stromal tumor composed of lipid-containing cells with a variable component of fibroblasts. To our knowledge, there have been no reports in the English literature describing detection of intracellular lipid in thecomas by preoperative imaging. We present 2 cases of thecomas of the ovary, in which intratumoral lipid was detected using dual-echo chemical shift magnetic resonance imaging.

We illustrate the fundamental theoretical principles of arterial spin-labeling (ASL) magnetic resonance imaging (MRI) and show a system that employs the second version of quantitative imaging of perfusion using a single subtraction (Q2TIPS) to quantify cerebral blood flow (CBF). We also discuss the effects of the parameters used in Q2TIPS on CBF values as measured with ASL-MRI.