‘Dot in circle sign’: a characteristic finding in ultrasound and MR imaging of soft tissue mycetomas

‘Dot in circle sign’: a characteristic finding in ultrasound and MR imaging of soft tissue mycetomas

To cite: Neelakantan S, Babu AAS, Anandarajan R. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2016-216502 DESCRIPTION A 36-year-old man presented with a history of painless swelling on his right distal foot progressively increasing in size since 2 years. Physical examination revealed a non-pulsatile, non-tender, firm swelling over the medial aspect of distal r...

Experimental Treatment of a Suspected Case of Mycetoma Based on Dot-in-Circle Sign

The ependymal "Dot-Dash" sign: an MR imaging finding of early multiple sclerosis.

BACKGROUND AND PURPOSE Corpus callosum lesions are of specific interest in the evaluation of suspected multiple sclerosis in brain MR imaging. Using thin-section sagittal fluid-attenuated inversion recovery images, researchers have shown that the finding of "subcallosal striations" correlates significantly with the diagnosis of multiple sclerosis. Using the same MR imaging technique, we describ...

MR imaging of the musculoskeletal soft tissue mass: is heterogeneity a sign of malignancy?

BACKGROUND Magnetic resonance (MR) is considered the imaging modality of choice to evaluate soft tissue lesions. Whether MR imaging can be used to differentiate benign from malignant soft tissue lesions is still controversial. To elucidate this controversy, MR images of 37 patients with soft tissue masses of the musculoskeletal system were reviewed at Christchurch Hospital, New Zealand. METHO...

The “dot-in-circle” sign in musculoskeletal mycetoma on magnetic resonance imaging and ultrasonography

This study aimed to present the 'dot-in-circle' sign, which indicates the typical magnetic resonance imaging (MRI) and ultrasonographic (USG) findings for mycetoma involving soft tissue and bone. A total of 8 cases with histopathological proof of mycetoma affecting the musculoskeletal system, and that were examined via MRI and/or coexistent diagnostic ultrasonography between 2004 and 2013 in So...