“ Also known as a unicameral bone cyst, it is more common in males and most common from 5-15 years of age ( 70%). PLAIN FILM • Central m...
“
Also known as a unicameral bone cyst, it is more common in males and most common from 5-15 years of age (70%).
PLAIN FILM
• Central metaphyseal/diaphyseal lesion in a long tubular bone (especially proximal humerus, proximal femur and tibia).
• It is a well-defined central lucency lying in the long axis of the bone and marginated by a thin sclerotic rim.
• The bone is typically mildly expanded (symmetrical).
• Look for a fracture and subsequent ‘fallen fragment’.
Simple bone cyst. Frontal radiograph of the left shoulder demonstrating a lucent expansile lesion with a narrow zone of transition centred on the metadiaphyseal region. There is an associated fracture with a fragment at the inferior aspect of the lesion in keeping with a ‘fallen fragment’ sign that is pathognomonic of a simple bone cyst.
”
- For Radiology Cases, Discussion join: Radiology Made Easy on Facebook
- Subscribe to our youtube channel for FRCR radiology case discussion
- Join our Telegram group: Radiology Made Easy
