What is the MRI characteristic of a plantar fibroma due to its fibrous nature?

What is the MRI characteristic of a plantar fibroma due to its fibrous nature?

• A. High T1 and high T2
• B. Low T1 and low T2
• C. Normal T1 and high T2
• D. High T1 and low T2

Answer: (B)

The characteristic appearance of a plantar fibroma on MRI is attributed to its dense fibrous tissue composition. Typically, lesions like plantar fibromas demonstrate low signal intensity on both T1-weighted and T2-weighted MRI images. This is because fibrous tissue is less hydrated, which results in lower water content and subsequently lower signal on T2-weighted images, as fluid-rich structures usually appear brighter. On T1-weighted images, the low signal is similarly a reflection of the fibrous tissue’s overall composition. T1-weighted images are better at depicting fat and fluid, where the latter appears brighter; therefore, the fibrous nature of a plantar fibroma leads to a dim appearance. Given these characteristics, recognizing the low T1 and low T2 signal intensity helps confirm the diagnosis of a plantar fibroma when viewed in the context of the imaging results.

The characteristic appearance of a plantar fibroma on MRI is attributed to its dense fibrous tissue composition. Typically, lesions like plantar fibromas demonstrate low signal intensity on both T1-weighted and T2-weighted MRI images. This is because fibrous tissue is less hydrated, which results in lower water content and subsequently lower signal on T2-weighted images, as fluid-rich structures usually appear brighter.

On T1-weighted images, the low signal is similarly a reflection of the fibrous tissue’s overall composition. T1-weighted images are better at depicting fat and fluid, where the latter appears brighter; therefore, the fibrous nature of a plantar fibroma leads to a dim appearance.

Given these characteristics, recognizing the low T1 and low T2 signal intensity helps confirm the diagnosis of a plantar fibroma when viewed in the context of the imaging results.