Question

Given below are two statements with respect to the diagnosis of Mycetoma. Statement I : Mycetoma usually presents early as it is very painful. Statement II : MRI shows typical ‘dot-in-circle’ sign. In the light of the above statements, choose the correct answer from the options given below:

• A. \( \text{Both Statement I and Statement II are true} \)
• B. \( \text{Both Statement I and Statement II are false} \)
• C. \( \text{Statement I is true but Statement II is false} \)
• D. \( \text{Statement I is false but Statement II is true} \)

Hint:

\textbf{Diagnostic Clue: Painless Swelling with Draining Sinuses.} In endemic areas, a painless subcutaneous mass with draining sinuses containing grains should raise suspicion for mycetoma. MRI can provide supportive diagnostic evidence with the ‘dot-in-circle’ sign.

Answer 1

The Correct Option is D

Statement I is false: Mycetoma is a chronic, progressive, granulomatous disease usually of the skin and subcutaneous tissue, most commonly affecting the foot. It is typically characterized by a triad of painless subcutaneous mass, draining sinuses, and the presence of grains (colored granules) in the discharge. The lack of significant pain in the early stages often leads to delayed presentation. Statement II is true: Magnetic Resonance Imaging (MRI) can be a valuable tool in diagnosing and assessing the extent of mycetoma. A characteristic finding on MRI is the ‘dot-in-circle’ sign, which represents the high-signal intensity of the central grain surrounded by low-signal intensity of the fibrous tissue and inflammatory cells. This sign, while not pathognomonic, is highly suggestive of mycetoma.