Facial skeletal changes associated with hyperparathyroidism assume 3 radiographic patterns: osteitis fibrosa cystica, fibrous dysplasia, and leontiasis ossea. The 3rd pattern is unique to renal osteodystrophy. We report a case of uremic leontiasis ossea with CT images illustrating significant hypertrophy of the jaws with serpiginous tunneling within the bone and poor visualization of the cortic...

Secondary hyperparathyroidism in pseudohypoparathyroidism was suggested by Kolb (1962) based mainly on bone X-ray findings characteristic to parathyroid hyperfunction such as subperiosteal resorption and osteitis fibrosa. We have recently experienced a case of typical pseudohypoparathyroidism in which the parathyroid hormone-like calcium-mobilizing activity in urine was increased, although bone...

Although bone disease and stone disease are the universally accepted classical manifestations of primary hyperparathyroidism, clinical parathyroid bone disease is rarely seen today in the United States (<5% of patients) and Western Europe. Nevertheless, in a given patient, classical skeletal involvement can be the first sign of primary hyperparathyroidism, but not recognized because it is not u...

Osteitis fibrosa cystica is the classic patognomonic form of skeletal disease in hyperparathyroidism that characterizes with decreased cortical bone thickness compared to increased cancellous bone. We present a case of 52-year old female patient with osteolysis of the left calf on radiographic images. The bone scan detected multiple focal pathological accumulations in the skull, left tibia, bot...

The spectra of relic gravitational waves produced as a result of cosmological expansion of the inflationary models are derived in Brans-Dicke (BD)theory of gravity.The time dependence of the very early Hubble parameter and matter energy density are derived from frequency dependent spectrum of relic gravitational waves.Also it is found that Brans-Dicke scalar field contributes to the energy dens...

A correction to this paper has been published: https://doi.org/10.1007/s40620-021-01038-6

A 65-year-old man with back pain had plain radiographs that showed multiple osteolytic bone lesions of the pelvis, femur and L-spine; an magnetic resonance imaging scan of the L-spine showed extensive bony resorption with a posterior epidural mass involving the L1 spinous process; these findings suggested multiple myeloma or bony metastasis. However, all serology testing was negative. The parat...