Describe post-traumatic cyst-like lesions etiology and present its characteristic imaging features. Depict how imaging can have a crucial role distinguishing these benign lesions and other pathologic entities,
preventing unnecessary invasive procedures.
Post-traumatic cyst-like lesions are an infrequent complication of fractures in children.
To our knowledge,
no more than 30 cases have been reported. 1-4 They most commonly affect the distal radius following a greenstick or torus fracture. 1 They are usually asymptomatic,
are not associated with pathologic fractures and typically resolve spontaneously in 1 to 3 years. 2 Most are found in the distal radius,
with an age range of 2.5 to 15 years. 1 Although etiology is still controversial,
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,
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...
Post-traumatic cyst-like lesions are rare complications of fractures in the paediatric population.
In most cases,
the typical radiographic appearance of a new cyst-like lesion near a healing fracture in a child should make the diagnosis and radiologist should be familiar with this tumor-like lesion.
MR or CT can be used to confirm it and prevent unwarranted investigations.
de Boeck H.
Posttraumatic cyst-like lesions of cortical bone in children.
Acta orthopaedica Belgica.
Post-traumatic cystic lesion following fracture of the radius.
Paediatric post-traumatic osseous cystic lesion following a distal radial fracture.
Journal of radiology case reports....