Search results
Results From The WOW.Com Content Network
The middle phalanges' (often those of the 2nd, 3rd and 5th digits of the hands) angel shape is caused by an abnormal development of the epiphysis, metaphysis, and diaphysis of said phalanges; the wings are formed by an abnormal dyaphysis, the angel's skirt is from a cone-shaped epiphysis, and the head is formed by an abnormal distal pseudoepophysis.
This deformity is caused by a widening of the epiphyseal plate of the fifth finger's distal phalange. [12] Another proposed cause involves the abnormal insertion of the flexor digitorum profundus in the volar area of the fifth finger's distal phalange. [13] It is thought to be an autosomal dominant trait with reduced penetrance. [14]
Facial anomalies included broad nasal bridge, microretrognathia, abnormal helices, and cleft palate. Other features included distal digital hypoplasia, lung hypoplasia, and urogenital abnormalities, including shawl scrotum, uterus bicornis, and renal cysts. They were discordant for diaphragmatic hernia, cleft lip, and Dandy–Walker anomaly.
In human anatomy, the radial (RCL) and ulnar (UCL) collateral ligaments of the metacarpophalangeal joints (MCP) of the hand are the primary stabilisers of the MCP joints. [1] A collateral ligament flanks each MCP joint - one on either side. Each attaches proximally at the head of the metacarpal bone, and distally at the base of the phalynx.
Pycnodysostosis also causes problems that may become evident with time. Aside from the broken bones, the distal phalanges and the collar bone can undergo slow progressive deterioration. Vertebral defects may permit the spine to curve laterally resulting in scoliosis. The dental problems often require orthodontic care and cavities are common.
Gross clubbing – Thickening of the whole distal (end part of the) finger (resembling a drumstick) Hypertrophic osteoarthropathy – Shiny aspect and striation of the nail and skin; Schamroth's sign or Schamroth's window test (originally demonstrated by South African cardiologist Leo Schamroth on himself) [16] is a popular test for clubbing.
Yunis–Varon syndrome (YVS), also called cleidocranial dysplasia with micrognathia or absent thumbs and distal aphalangia, [1] [2] is an extremely rare [3] autosomal recessive [4] multisystem congenital disorder [5] which affects the skeletal system, ectodermal tissue, heart and respiratory system.
Heberden's nodes are hard or bony swellings that can develop in the distal interphalangeal joints (DIP) (the joints closest to the end of the fingers and toes). [1] They are a sign of osteoarthritis and are caused by formation of osteophytes (calcific spurs) of the articular (joint) cartilage in response to repeated trauma at the joint.