Paeds radiology Flashcards
What is a common mimic for thoracic pathology in kids <5yo?
The thymus
- can be very large at times post infection, potentially mimicking a large pneumonia taking up an entire upper lobe (particularly on the Right upper lobe)
- Becomes much small after 5yo
- Ultrasound can differentiate from other structures
How useful is not seeing the appendix in a paedaitric abdominal ultrasound?
Not visualising the appendix of oedema in the R)IF has a 90% NPV for appendicitis
How useful is ultrasound for ruling out paediatric ovarian torsion?
Bilateral normal sized symmetrical ovaries has an NPV of 90%
Normal doppler of the ovary is not reassuring if there are other signs of torsion
How may a radiolucent (the majority) inhaled foreign body in the lung otherwise be detected?
It will often act as a one way valve leading to hyper-expansion of the affected side, most notable with an expiratory film
May also get unilateral atelectasis
Where can you access examples of normal xrays for a patients age?
bonepit.com
what is the most common Salter Harris fracture?
Salter Harris 2 (75%)
What is the Salter Harris classification and mnemonic?
What is a trampoline fracture?
A minor proximal tibia fracture related to axial load through the tibia
What is the significance of a bucket handle (metaphyseal corner) fracture?
Most common fracture in NAI
Approx 50% of children under 2 experiencing NAI will have this
Related to the child being shaken whilst unable to properly protect their limbs
What are the potential complications of a Salter Harris fracture?
- Worsening prognosis with higher grade, high grade at risk of growth arrest from physeal failure
- Normal fracture complications (nerve injury, vascular injury, compartment syndrome
- Complex regional pain syndrome aka reflexsympathetic dystrophy
