Elastofibroma

CLINICAL SUMMARY

Elastofibroma is a slow-growing, reactive lesion that is found almost exclusively between the scapula and chest wall. These lesions are more frequent in older patients and are common incidental discoveries on thoracic imaging. Excision is reserved for symptomatic lesions.

DIAGNOSTIC FEATURES

History	50 to 70 years old Slowly enlarging mass Pain with shoulder movement
Location	Distinctive location (>90%) deep to tip of scapula Can be bilateral
MRI	Ovoid mass between the scapula and chest wall T1 sequences show distinctive thin streaks of fat signal T2 sequences demonstrate heterogeneous pattern and indistinct margins