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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2021; 31(02): 468-471
DOI: 10.1055/s-0041-1734331
Case Report

Spinal Eumycetoma: A Rare Cause of Lumbar Canal Stenosis and Significance of “Dot in Circle”

Radha Sarawagi
1   Department of Radio Diagnosis and Imaging, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
,
Jitendra Sharma
1   Department of Radio Diagnosis and Imaging, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
,
Rajesh Malik
1   Department of Radio Diagnosis and Imaging, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
,
Aman Kumar
1   Department of Radio Diagnosis and Imaging, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
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Abstract

Mycetoma is a chronic granulomatous disease that is more common in tropical regions with predominant involvement of foot. Spinal mycetoma presenting as lumbar canal stenosis is extremely rare. We hereby present a case of fungal eumycetoma of vertebral column in a 42-year-old male who presented with chronic progressive low back pain and features of lumbar canal stenosis without any skin swelling or discharging sinuses. The “dot-in-circle” sign, a highly specific magnetic resonance imaging (MRI) and ultrasonography (USG) sign of mycetoma has been described in the literature as a pathognomonic feature of mycetoma involving the musculoskeletal system. We describe the importance of characteristic imaging features with dot in circle sign in the diagnosis of eumycetoma of lumbar spine.

Keywords

dot-in-circle - eumycetoma - lumbar spine - magnetic resonance imaging - ultrasonography


Publication History

Article published online:
27 July 2021

© 2021. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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