Coca Cola bottle sign:
Seen in thyroid eye disease/ Graves ophthalmopathy
Oreo Cookie sign:
Seen in pericardial effusion (lateral radiograph)
Egg in cup:
Seen in constrictive pericarditis (cup = calcification)
Pancake brain:
Seen in alobar holoprosencephaly [prosencephalon (the forebrain of the embryo) fails to develop into two hemispheres]
Lemon & Banana sign:
Seen in antenatal USG of spina bifida
Celery stalk metaphysis:
Seen in congenital rubella syndrome: Characterized by longitudinally aligned vertical bands of sclerosis
Coffee bean sign:
X-Ray sign of Sigmoid volvulus
