| PXE | pseudoxanthoma elasticum |
|---|---|
| RPC | reactive perforating collagenosis; relapsing polychondritis; relative proliferative capacity |
| PXE | Pseudoxanthoma Elasticum |
|---|
| pseudoxanthoma elasticum | <dermatology> A rare disorder of degeneration of the elastic fibres with tiny areas of calcification in the skin, back of the eyes (retinae), and blood vessels. Pseudoxanthoma elasticum is inherited from the parents, either as an autosomal recessive or as an autosomal dominant trait. It typically causes yellow-white small raised areas in the skin folds, often appearing in the second or third decades of life. These skin abnormalities frequently appear on the neck, armpits, and other areas that bend a great deal (referred to as flexure areas). The face is not affected. There are often see abnormalities in the retina called angioid streaks, which are tiny breaks in the elastin-filled tissue there. These eye abnormalities can lead to blindness. Other areas that can be affected in pxe include the heart which can be affected by atherosclerosis and mitral valve prolapse. Small blood vessels are abnormally fragile in patients with pxe because the blood vessel walls contain elastin and are weakened. This can lead to abnormal bleeding in such areas as the bowel and, very rarely, the uterus. Impairment of circulation to the legs can lead to pains in the legs while walking (claudication). Inheritance: ausomal recessive and autosomal dominant Abbreviation: PXE (12 Dec 1998) |
|---|---|
| pseudoxanthoma cell | <cell biology> Relatively large phagocytic cell's (macrophages) that contain numerous small lipid vacuoles or haemosiderin (or both), in organizing haemorrhagic or inflammatory lesions. (05 Mar 2000) |
| reactive perforating collagenosis | A rare skin disorder characterised by extrusion of collagen fibres through the epidermis; usually begins in infancy or childhood and appears clinically as recurrent umbilicated papules that resolve spontaneously. The condition may be inherited or acquired, the latter differing from Kyrle's disease because follicular involvement is absent. (05 Mar 2000) |
| perforating abscess | An abscess that breaks down tissue barriers to enter adjacent areas. Synonym: gravitation abscess, hypostatic abscess, migrating abscess, wandering abscess. (05 Mar 2000) |
| perforating appendicitis | Inflammation of the appendix leading to perforation of the wall of the appendix into the peritoneal cavity, resulting in peritonitis. (05 Mar 2000) |
| perforating arteries | Origin, arteria profunda femoris; distribution, as three or four vessels that pass through the aponeurosis of the adductor magnus to the posterior and anterior compartments of the thigh. Synonym: arteriae perforantes. (05 Mar 2000) |
| perforating arteries of foot | The perforating branches of the plantar metatarsal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the foot from the plantar metatarsal arteries. Synonym: ramus perforantes arteriarum metatarsearum plantarium, perforating arteries of foot. (05 Mar 2000) |
| perforating arteries of hand | The perforating branches of the palmar metacarpal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the hand from the palmar metacarpal arteries. Synonym: ramus perforantes arteriarum metacarpalium palmarium, perforating arteries of hand. (05 Mar 2000) |
| perforating arteries of internal mammary | <anatomy, artery> Small branches of the internal thoracic artery running between the costal cartilages to supply overlying skin and subcutaneous tissues. Synonym: ramus perforantes arteriae thoracicae internae, perforating arteries of internal mammary. (05 Mar 2000) |
| perforating branches | Arterial branches which penetrate a wall or pass from the anterior to the posterior aspect or compartment of a structure such as the hand or foot to anastomose or be distributed. Synonym: ramus perforans, perforating peroneal artery. (05 Mar 2000) |
| perforating branches of internal thoracic artery | <anatomy, artery> Small branches of the internal thoracic artery running between the costal cartilages to supply overlying skin and subcutaneous tissues. Synonym: ramus perforantes arteriae thoracicae internae, perforating arteries of internal mammary. (05 Mar 2000) |
| perforating branches of palmar metacarpal arteries | The perforating branches of the palmar metacarpal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the hand from the palmar metacarpal arteries. Synonym: ramus perforantes arteriarum metacarpalium palmarium, perforating arteries of hand. (05 Mar 2000) |
| perforating branches of plantar metatarsal arteries | The perforating branches of the plantar metatarsal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the foot from the plantar metatarsal arteries. Synonym: ramus perforantes arteriarum metatarsearum plantarium, perforating arteries of foot. (05 Mar 2000) |
| perforating branch of peroneal artery | <anatomy, artery> The branch of the peroneal artery that perforates the interosseous membrane just above the anterior tibiofibular ligament. Synonym: ramus perforans arteriae fibularis. (05 Mar 2000) |
| perforating fibres | Bundles of collagenous fibre's that pass into the outer circumferential lamellae of bone or the cementum of teeth. Synonym: Sharpey's fibres. (05 Mar 2000) |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|