Keywords:
Trauma, Diagnostic procedure, Plain radiographic studies, MR, CT, Musculoskeletal bone
Authors:
G. Freire1, R. Cruz2, M. H. Valentim3, C. Silva1, T. G. Marques1, P. D. Afonso4; 1Loures/PT, 2PT, 3Lisboa/PT, 4Lisbon/PT
DOI:
10.1594/essr2018/P-0077
Imaging findings OR Procedure Details
On plain radiographs,
post-traumatic cyst-like lesions appear as a non-expansile lucent lesion.
They appear proximal to the compression site and are usually identified 2-4 months after a minor fracture.3 This means that,
when formed,
these lesions might be occult unless the patient has a long-term imaging follow-up or is evaluated for pain or re-injury of the same limb.3.
Sequential radiographs show the lesions migrating away from the growth-plate.4
These lesions have a distinct appearance on magnetic resonance imaging (MRI) and computed tomography (CT).
Both can confirm the diagnosis without the need for biopsy,
demonstrating subperiosteal location,
intralesional fatty marrow,
periosteal stripping and possibly smaller adjacent lesions.
We present three cases studied with plain radiographs,
CT and MRI.
Follow-up imaging was also performed.