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

The dot-in-circle sign of mycetoma on MRI.

Mycetoma is a chronic granulomatous disease prevalent in tropical countries, but it also occurs in Europe and the United States. Early diagnosis is important as it has therapeutic implications. Although biopsy and microbiological culture provide the definitive diagnosis, these are difficult to achieve in many instances. The dot-in-circle sign is a recently proposed magnetic resonance imaging (M...

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

Dot-in-Circle Sign - A Diagnostic MRI Sign for "Madura Foot".

Mycetoma is a slowly progressive localised, granulomatous, subcutaneous tissue infection common among adult males aged 20 - 50 years. The causing agents include both bacteria (actinomycetoma) and fungi (eumycetoma). This chronic infection was described in literature as Madura foot and eventually mycetoma, due to its etiology. Early clinical diagnosis before the appearance of sinuses and grains ...

Madura foot masquerading as a hemangioma

Mycetoma, also known as Madura foot, is a rare soft-tissue granulomatous infection caused by Actinomyces or true fungi. The MRI "dot-in-circle" sign has been described as a characteristic finding of mycetoma. This sign represents spherical T2 bright masses containing central and intervening low-signal-intensity foci. However, other soft-tissue masses can have similar appearances. We present a c...

The mystical foot with pink mushrooms: Imaging of maduromycosis - a rarity in southern Africa.

Maduromycoses (Madura foot) are chronic granulomatous subcutaneous infections endemic to certain regions, but not southern Africa. The infection is caused by both pure fungi and bacteria. Imaging plays an important role in assessing the severity of disease and the direction of its spread, assisting in treatment planning and in the monitoring of treatment response. The typical 'dot-in-circle' si...