hyperostosis


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hyperostosis

 [hi″per-os-to´sis]
excessive growth of bony tissue. adj., adj hyperostot´ic.
frontal internal hyperostosis (hyperostosis fronta´lis inter´na) a new formation of bone tissue protruding in patches on the internal surface of the cranial bones in the frontal region, most commonly affecting women near menopause.
generalized cortical hyperostosis a hereditary disorder beginning during puberty, marked by osteosclerosis of the skull, mandible, clavicles, ribs, and diaphyses of long bones, associated with elevated blood alkaline phosphatase.
infantile cortical hyperostosis a syndrome seen in infants under six months of age, marked by fever, arthralgias, and swelling and cortical thickening of facial, trunk, and long bones. Called also Caffey's disease.

hy·per·os·to·sis

(hī'pĕr-os-tō'sis),
1. Hypertrophy of bone.
2. Synonym(s): exostosis
[hyper- + G. osteon, bone, + -ōsis, condition]

hyperostosis

/hy·per·os·to·sis/ (-os-to´sis) hypertrophy of bone.hyperostot´ic
hyperostosis cortica´lis defor´mans juveni´lis  an inherited disorder of limb fractures and bowing, thickening of skull bones, osteoporosis, and elevated levels of serum alkaline phosphatase and urinary hydroxyproline.
hyperostosis cortica´lis generalisa´ta  a hereditary disorder beginning during puberty, marked chiefly by osteosclerosis of the skull, mandible, clavicles, ribs, and diaphyses of long bones, associated with elevated blood alkaline phosphatase.
hyperostosis cra´nii  hyperostosis involving the cranial bones.
hyperostosis fronta´lis inter´na  thickening of the inner table of the frontal bone, which may be associated with hypertrichosis and obesity, most commonly affecting women near menopause.
infantile cortical hyperostosis  a disease of young infants, with soft tissue swelling over affected bones, fever, irritability, and periods of remission and exacerbation.

hyperostosis

(hī′pər-ŏ-stō′sĭs)
n. pl. hyperosto·ses (-sēz)
Excessive or abnormal thickening or growth of bone tissue.

hy′per·os·tot′ic (-ŏ-stŏt′ĭk) adj.

hyperostosis

See exostosis.

hyperostosis

 A proliferation of bony matrix

hy·per·os·to·sis

(hī'pĕr-os-tō'sis)
1. Hypertrophy of bone.
2. Synonym(s): exostosis.
[hyper- + G. osteon, bone, + -ōsis, condition]

hyperostosis

Abnormal thickening or growth (HYPERTROPHY) of bone, either generally or, more commonly, locally.

hyperostosis

exostosis

hy·per·os·to·sis

(hī'pĕr-os-tō'sis)
1. Hypertrophy of bone.
2. Synonym(s): exostosis.
[hyper- + G. osteon, bone, + -ōsis, condition]

hyperostosis (hī´pərostō´sis),

n 1. an excessive growth of bone, as in infantile cortical hyperostosis.
n 2. a hypertrophy of bone. See also exostosis.
hyperostosis, infantile cortical (Caffey's disease, Smyth's syndrome),
n a disease of infants; of unknown cause and characterized by tender, soft tissue swelling that is followed by hyperostosis of the cortex of the underlying bone. The mandible, clavicle, and ulna are most frequently affected.

hyperostosis

excessive growth of bony tissue.

craniomandibular hyperostosis
see craniomandibular osteopathy.
diffuse idiopathic skeletal hyperostosis (DISH)
occurs in dogs and pigs; cause unknown, possibly familial in pigs; extensive bone deposition around joints but articular surfaces not affected.
facial hyperostosis
in hyperparathyroidism resorption of cancellous bone, particularly maxillae and mandibles, and the formation of poorly mineralized osteoid and excessive fibro-osseous tissue cause deformities of the face and head that are clinically obvious and may prevent closure of the mouth. Occurs in primary and secondary hyperparathyroidism.
inherited congenital hyperostosis
see juvenile hyperostosis (below).
juvenile hyperostosis
a congenital defect of pigs. The legs of affected newborn pigs are swollen below the elbow. The piglets have difficulty standing and moving around. The bone is thick and the periosteum rough and there is extensive edema. Called also thick forelegs, inherited congenital hyperostosis.
References in periodicals archive ?
In an autopsy study, Boachie-Adjei and colleagues found hyperostosis consistent with DISH to be present in 28% of patients with an average age of 65 years.
Particularly knee OA is a chronic arthropathy characterized as degeneration and destruction of joint cartilage as well as hyperostosis.
A novel aspect of this study was that nontraumatic lesions of the clavicle are different to those found in adults in whom a much more diverse range of pathologies are commonly seen (malignancy, chronic recurrent multifocal osteomyelitis, hyperostosis, and sclerosing osteitis).
Radiological findings that differentiate schwannomas and meningiomas of the cerebellopontine angle described by Shu et al (1) Meningioma Schwannoma Localization Out of internal auditory Centered on the internal canal auditory canal Shape Wide base Usually rounded Adjacent dural Frequent Rare enhancement Hyperostosis Occurs in 70% of cases Rare
In most of the literature it is also designated as hyperostosis, exostosis and osteomas.
Examinations of Adult Human Cadavers for the Incidence of Hyperostosis Frontalis Interna.
Proteus syndrome is a rare, complex, and variable disorder characterized by the overgrowth of multiple tissues including the connective tissue nevi, the epidermal nevi, and the craniofacial hyperostosis (1).
It illustrates the analysis of radiographic changes in a specific joint and the common arthropathies that produce these changes, then the radiographic hallmarks of each, with chapters on rheumatoid arthritis, psoriatic and reactive arthritis, ankylosing spondylitis, osteoarthritis, neuropathic osteoarthropathy, diffuse idiopathic skeletal hyperostosis, gout, calcium pyrophosphate dihydrate crystal deposition disease, hydroxyapatite deposition disease, miscellaneous deposition diseases, collagen vascular diseases, juvenile idiopathic arthritis, hemophilia, and mass-like arthropathies.
Diffuse idiopathic skeletal hyperostosis (DISH) can occur at higher dosages used for prolonged periods.
Furthermore, long standing cases usually exhibit hyperostosis at the bony attachment of the masseter muscle as seen in our case.
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