Wednesday, March 5, 2008

eponyms in medicine - part 37

361 - Lewis blood group system is named after Mrs. Lewis - pregnant woman in whom anti-Lea was discovered by Mourant in 1946; function of antigens in this system are unknown.

362 - Louis - angle of is sternal angle.

363 - Yuzpe regimen is ethinyl estradiol 100 mcg and levonorgestrel 0.5 mg taken twice -12 hours apart - reduces number of anticipated pregnancies by 75-80%.

364 - Kallman’s syndrome is anosmia; hypogonadotropic hypogonadism stemming from failure of LHRH-expressing neurons to migrate - etc.

365 - Tarlov cyst is perineural cyst found in the lower spinal cord.

366 - San Joaquin valley fever is coccidiomycosis (from infection with Coccidiomycosis imites).

367 - nerve endings is free includes Merkel cell associated: found in the epidermis as small aggregates called tactile corpuscles (Merkel cell has neural crest and squamous properties); encapsulated includes Meissner’s: asymmetrical - lamellated; Pacinian: symmetrical - lamellated; Ruffini: no lamellation.

368 - Bickerstaff’s encephalitis is brain stem encephalitis

369 - Legg-Calvé-Perthes disease is self-limiting hip disorder of children - 4-8 y.o. (M:F 8:1) involving vascular compromise of the capital femoral epiphysis; perhaps some aseptic necrosis action too.

370 - Raynaud’s phenomenon is exaggerated vascular response to cold temperatures or emotional stress - manifested by symmetrical - sharply demarcated color changes of the skin of the digits due to abnormal vasoconstriction of digital arteries and cutaneous arterioles.

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