Scurvy
Rare before 6 months of age since the storage of vitamin C in neonate is generally adequate
• Wimberger sign: presence of a sclerotic rim around epiphysis
• White line of frankel:dense zone of provisional calci­fication at the growing metaphysis
• Trumerfeld zone:a lucent zone below white line due to lack of mineralisation
• Pelkan spur:as the area is prone to fractures manifesting at cortical margin
• Osteoporosis
• Subperiosteal haemorrhage.
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