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Parrot's sign, [3] also known as 'Parrot's nodes' [4] and 'Parrot's bosses', [5] [6] refers to the bony growth noted at autopsy by Marie Jules Parrot and Jonathan Hutchinson on the skulls of children with congenital syphilis (CS) in the 19th century. [2] [7] Later publications also describe it as the frontal bossing that presents in the late ...
Skull bossing is a descriptive term in medical physical examination indicating a protuberance of the skull, most often in the frontal bones of the forehead ("frontal bossing"). Although prominence of the skull bones may be normal, skull bossing may be associated with certain medical conditions, [ 1 ] including nutritional, metabolic, hormonal ...
Garre's sclerosing osteomyelitis is a type of chronic osteomyelitis also called periostitis ossificans and Garré's sclerosing osteomyelitis. It is a rare disease. [1] It mainly affects children and young adults. [2] It is associated with a low grade infection, which may be due to dental caries (cavities in the teeth). [citation needed]
Compensatory growth occurs forward at the coronal suture and backward at the lambdoid suture giving respectively a prominent forehead, called frontal bossing, and a prominent back portion of the head, called coning. [10] [11] This is the most common form of craniosynostosis. [13]
PDP has a number of visible signs. Most important clinical features are: pachydermia (thickening and wrinkling of the skin), furrowing of the face and scalp, periostosis (swelling of periarticular tissue and shaggy periosteal new bone formation of long bones) and digital clubbing (enlargement of fingertips). [1]
Cranial sutures. A defining characteristic of Crouzon syndrome is craniosynostosis, which results in an abnormal head shape.This is present in combinations of: frontal bossing, trigonocephaly (fusion of the metopic suture), brachycephaly (fusion of the coronal suture), dolichocephaly (fusion of the sagittal suture), plagiocephaly (unilateral premature closure of lambdoid and coronal sutures ...
Hypertrophic osteoarthropathy is one of many distant effect disorders due to cancer, with lung cancer being the most common cause but also occurring with ovarian or adrenal malignancies. A distant effect disorder, or a paraneoplastic syndrome , affects distant areas and thus is not related to local compression or obstruction effects from the tumor.
The primary ossification center extends to form the corresponding half of the vertical part (squama) and horizontal part (orbital part) of the frontal bone. At birth the frontal bone contains two portions, separated by the metopic (frontal) suture. Metopism is the condition of having a persistent metopic suture.