Salt and pepper sign of the skull

Salt and

pepper sign (skull) • Renal osteodystrophy of the skull vault - Ganzer Fall bei Radiopaedia

Salt and

pepper sign (skull) • Renal osteodystrophy - metabolic superscan - Ganzer Fall bei Radiopaedia

Teenager with

seizures and an elevated parathyroid hormone level. Bone windows from an axial CT without contrast of the brain shows salt and pepper lesions diffusely throughout the skull.The diagnosis was primary hyperparathyroidism.

Salt and

pepper sign (skull) • Renal osteodystrophy of the skull vault - Ganzer Fall bei Radiopaedia

Salt and

pepper sign (skull) • Salt and pepper skull - Ganzer Fall bei Radiopaedia

Salt and

pepper sign (skull) • Hyperparathyroidism - Ganzer Fall bei Radiopaedia

Imaging of

skull vault tumors in adults. Miscellany. Paget disease (a, b) CT (a) and X-ray (b): Characteristic mixed bone lysis and sclerosis, cortical bone thickening, and expansion. Osteoporosis circumscripta cranii CT (c, d): large geographic radiolucent areas involving medullar and cortical bone in frontal and occipital regions (arrows). Amyloidoma (e, f) CT (e) and T2WI (f): Giant heterogeneous mass with marked T2 hypointensity and calcifications. Renal osteodystrophy CT (g): shows characteristic “salt-and-pepper pattern.” Brown tumor (h, i): unspecific well-defined, cystic appearance (arrows). Thalassemia CT (j): Diffuse diploic widening and “hair-on-end” appearance (arrow) with characteristic occipital bone preservation (arrowhead). Bone sarcoidosis (k, l) CT (k) and T2WI (l): Mixed predominantly lytic multiple lesions with lace-like internal pattern of calcification and T2 hypointensity (dashed arrows). Osteitis CT (m, n): Bone focal lysis and erosions of osteitis (arrows) contiguous to a frontal sinusitis complicated with intracranial laminar abscess (dashed arrow)