focal lesion


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focal lesion

Etymology: L, focus hearth + laesio, hurting
an infection, tumor, or injury that develops at a restricted or circumscribed area of tissue.

focal lesion

A lesion of a small definite area.
See also: lesion
References in periodicals archive ?
Interventional radiology studies, such as transhepatic portal venous insulin sampling (54) and selective pancreatic arterial calcium stimulation (51), have been used to localize focal lesions.
Moreover, since state-of-the-art Doppler ultrasound is not widely available, saline infusion sonography should remain the method of choice for detecting focal lesions in many institutions, she said.
Also, focal lesions may make the endometrium thicker focally.
By USG we saw 98 cases of focal lesions of these 27% were primary, 22% metastases, 5% were heamangiomas, 35% liver abscesses, 4% cysts and remaining 5% as hydatids (Figure-2).
A) Axial FLAIR images show two bilateral focal lesions (arrows) in the occipital lobes with a hyperintense centre and with a mildly hypointense rim.
Bone imaging studies showed two small focal lesions in left distal index and little fingers.
These focal lesions revealed by SPECT/CT offer evidence of organic injury in patients whose conventional neuroimaging studies do not reveal any anatomic abnormalities (9).
Inoculation of horses with VACV-P1V (n=3) and VACV-P2V (n=3) resulted in mild and focal lesions in four animals (two animals inoculated with each virus), characterized by papules, ulcers and mild scabs.
Magnetic resonance imaging of the brain demonstrated focal lesions in both sides of the mastoid cavity; there was no involvement of the brain parenchyma.
7% of the patients, D & C failed to detect intrauterine disorders, especially focal lesions of the endometrium.
The liver weighed 1600 g and was sectioned to reveal a dark red-brown, homogenous cut surface with no focal lesions.