Is That a Lump in Your Back? Understanding Elastofibroma Dorsi!

https://youtu.be/fU4RQDaKruM

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📌 Elastofibroma Dorsi

 

Elastofibroma dorsi is a benign soft-tissue tumor commonly found in the infrascapular or subscapular region. It is bilateral in up to 30% of cases and has a slight right-sided predilection when unilateral.

 

✅ Location

• Found deep to the serratus anterior and latissimus dorsi muscles.
• Poorly defined soft-tissue mass with no true capsule.

 

✅ CT Findings

• Poorly defined soft-tissue mass.
• Attenuation similar to adjacent skeletal muscle.
• Located in the infrascapular or subscapular region.

 

✅ MRI Findings

• Alternating fibrous and fatty components.
• No identifiable capsule but relatively well-defined margins.

• Fibrous component: Isointense to muscle.
• Fatty component: High signal intensity on T1WI and T2I

• Heterogeneous low-level enhancement.

 

✅  Key Imaging Features

• Heterogeneous signal mass deep to the serratus anterior and latissimus dorsi muscles.
• Streaky internal fat signal is a distinguishing feature.
• Signal intensity similar to skeletal muscle.

 

Hashtags

#ElastofibromaDorsi, #MSKRadiology, #MRI, #SoftTissueTumor, #MusculoskeletalImaging, #ShoulderMRI, #BenignTumor,