Diploic Space

The diploic space has been identified as an additional site of reabsorption of cerebrospinal fluid csf.

Diploic space. Diploic veins are veins in the diploic space of the skull the space between inner and outer tables. In adults in whom yellow marrow has supplanted the red marrow of childhood or in whom there is simply a greater proportion of yellow marrow this space is visualized as increased si on t1wi. The diploic space is the marrow containing area in the skull vault between the inner and outer layers of compact dense bone. The diploic space is the marrow containing area in the skull vault between the inner and outer layers of compact dense bone.

They develop fully by the age of two years. They are lined by a single layer of endothelium supported by elastic tissue. The diploic veins are large thin walled valveless veins that channel in the diploë between the inner and outer layers of the cortical bone in the skull. They are depicted in all kinds of atlases.

Herein the anatomy and physiology of the diploic veins are reviewed. Thus expansion of this structure most commonly occurs in the setting of chronically increased intramedullary hematopoiesis. Diffuse osteopenia prominent vascular markings in skull thin and large calvarium with shallow diploic space multiple wormian bones small mandible with infantile obtuse angle and short ascending rami hypoplastic facial bones open cranial fontanelles thin short clavicles dwarfism abnormally gracile ribs involving the posterior segments of the upper ribs slender long bones kyphosis. The widened appearance is most commonly bilateral.

Diploic veins diploic space arteriovenous fistula cerebrospinal fluid diploic venous system. In adults in whom yellow marrow has supplanted the red marrow of childhood or in whom there is simply a greater proportion of yellow marrow this space is visualized as increased si on t1wi. The diploic space is the medullary cavity of the skull and a location of normal physiologic hematopoiesis in adults.