What is a hyperintense lesion on ovary?
Hyperintensity within an ovarian lesion on unenhanced T1-weighted images may be related to the presence of fat, hemorrhage, or proteinaceous-mucinous material. Fat-saturated T1-weighted sequences must be performed to differentiate between these components.
What does T2 hyperintense cyst mean?
If a T2-hyperintense mass has a thin rim of peripheral enhancement and no internal enhancement, it is a truly cystic (ie, fluid-filled) lesion. Ganglia are very common and should be considered whenever a periarticular mass with these characteristics is identified at MR imaging (Fig 1).
What does T2 hypointense lesion mean?
T2 heterogeneous hypointense or mixed signal solid lesions have intermediate signal or T2 inhomogeneous signal with a mixture of T2 low and bright signal (higher than that of the outer myometrium or skeletal muscle). These may represent either benign or malignant lesions, either primary or secondary 3, 8.
What is a lesion on your ovary?
Common benign solid tumors include fibromas and thecomas. Fibromas are the most common benign ovarian neoplasms. These tumors occur most commonly in women of postmenopausal age. They are unilateral and are often at least 3 cm in size. Fibromas are connective-tissue tumors that arise from the ovarian cortical stroma.
What is a T2 hyperintense mass?
The T2 signal was reported as hyperintense if equal to or greater than the signal intensity of the axillary lymph nodes. Pathology results or 2 years of imaging follow-up were recorded. Comparisons were made between mass descriptors and clinical outcomes.
What is the difference between a lesion and a tumor?
A bone lesion is considered a bone tumor if the abnormal area has cells that divide and multiply at higher-than-normal rates to create a mass in the bone. The term “tumor” does not indicate whether an abnormal growth is malignant (cancerous) or benign, as both benign and malignant lesions can form tumors in the bone.
What are T2 lesions?
T2 weighted imaging identifies MS lesions as high signal foci against the low signal background of white matter. However, periventricular lesions are often indistinguishable from the adjacent CSF which is also of high signal with T2 weighting.
What does a hypointense ovarian lesion on a T2 weighted MRI mean?
A hypointense ovarian lesion on T2 weighted MRI is usually a sign of benignity. The low signal is considered to be due to fibrosis and blood products 1. Lesions that can give this appearance include 1: 1. Lin EC, Escott E, Garg K. Practical differential diagnosis for CT and MRI. Thieme. (2008) ISBN:1588906558.
What are T2-hyperintense foci?
Background: T2-hyperintense foci are one of the most frequent findings in cerebral magnetic resonance imaging (MRI). They can pose serious diagnostic problems which is reflected by their English name and abbreviation – UBOs (Unidentified Bright Objects).
What is the most common T2 hypointense lesion?
The most common T2-hypointense tubal lesion is hematosalpinx (discussed later), followed by tubal leiomyoma, fibroma, and abscess. Although extrauterine leiomyomas are uncommon, they can arise from a fallopian tube or round ligament.
Are adnexal lesions T2 hyperintense or T2 mild?
The majority of adnexal lesions contain cystic components and are, therefore, T2 hyperintense.