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Many people with Marfan syndrome grow to above-average height, and some have disproportionately long, slender limbs with thin, weak wrists and long fingers and toes. The Steinberg sign, also known as the thumb sign, is one of the clinical examination tests for Marfan disease in the hands.
It remains unconfirmed whether composer Sergei Rachmaninoff's abnormally large reach on a piano was a result of arachnodactyly due to Marfan syndrome, as the pianist exhibited no other signs of the disease. [6]
Joint hypermobility syndrome shares symptoms with other conditions such as Marfan syndrome, Ehlers-Danlos Syndrome, and osteogenesis imperfecta. Experts in connective tissue disorders formally agreed that severe forms of Hypermobility Syndrome and mild forms of Ehlers-Danlos Syndrome Hypermobility Type are the same disorder. [citation needed]
Dolichonychia is a medical condition in which the nail beds of the fingers and toes are abnormally long and slender, specifically, a finger nail index of 1.30 or more, [1] it is a common feature in people with connective tissue disorders, such as Ehlers–Danlos syndromes, Marfan syndrome, and hypohidrotic ectodermal dysplasia., [2] it often appears alongside arachnodactyly and/or ...
Ligamentous laxity, or ligament laxity, is a cause of chronic body pain characterized by loose ligaments.When this condition affects joints in the entire body, it is called generalized joint hypermobility, which occurs in about ten percent of the population, and may be genetic.
Marfanoid (or Marfanoid habitus) is a constellation of signs resembling those of Marfan syndrome, including long limbs, with an arm span that is at least 1.03 of the height of the individual, and a crowded oral maxilla, sometimes with a high arch in the palate, arachnodactyly, and hyperlaxity.
Dural ectasia is common in Marfan syndrome, [3] occurring in 63–92% of people with the syndrome. [11] It may also occur in Ehlers-Danlos Syndrome , neurofibromatosis type I , [ 12 ] ankylosing spondylitis , [ 1 ] and is associated with spondylolisthesis , vertebral fractures, [ 13 ] scoliosis , tumors or trauma .
Congenital contractural arachnodactyly (CCA), also known as Beals–Hecht syndrome, is a rare autosomal dominant congenital connective tissue disorder. [1] As with Marfan syndrome , people with CCA typically have an arm span that is greater than their height and very long fingers and toes . [ 2 ]