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a condition with clinical signs of fracture but no radiographic evidence; after 2-4 weeks, radiographic imaging shows new bone formation; magnetic resonance imaging frequently confirms the fracture before changes are evident on radiography; commonly seen in the navicular bone of the wrist.
a fracture that cannot be detected by radiographic standard examination until several weeks after injury. The break is most likely to occur in the ribs, tibia, metatarsals, hip, or navicular. It is accompanied by the usual signs of pain and trauma and may produce soft tissue edema. Magnetic resonance imaging or a bone scan may be used to confirm a suspected occult fracture.
oc·cult frac·ture(ŏ-kŭlt' frak'shŭr)
A condition in which there are clinical signs of fracture but no radiologic evidence; after 3-4 weeks, radiologic imaging shows new bone formation.
A fracture that is suspected based on clinical grounds (e.g., guarding, pain, and swelling) but not seen on x-rays. The fracture may be seen with bone scans or magnetic resonance imaging.
See also: fracture