study_ing
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ok guys need some concise clues for distinguishing marfan's from other syndromes which have marfan features associated with them...( keep confusisng them  )
i thought id use family history, but 30 % of marfan's are sporadic, so thats not reliable.
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| study_ing
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ok i came across one hint..
thromboebolism sugeests?
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| study_ing
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homocystinuria
•FAIR COMPLEXION, THROMBOEMBOLISM AND OSTEOPOROSIS ---->TOWARDS HOMOCYSTINURIA
•LENS DISLOCATION DOWNWARDS ( IN MARFAN'S UPWARDS )
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http://www.gpnotebook.co.uk/simplepage.cfm?ID=138...
this was a good one..
- inheritance:
Marfan's - autosomal dominant homocystinuria - autosomal recessive - lens dislocation:
Marfan's - upward lens dislocation -
homocystinuria - downward lens dislocation aortic incompetence: Marfan's - aortic incompetence may occur homocystinuria - heart rarely affected intellectual development: homocystinuria - mental retardation other principle features: Marfan's - flat feet, herniae, scoliosis; there is a 50% reduction in life expectancy -
homocystinuria - osteoporosis, recurrent thromboembolism; characteristic laboratory features - plasma methionine and homocystine levels are elevated, homocystine is excreted in the urine, plasma cystine levels are reduced, positive urine cyanide-nitroprusside test; response to treatment with pyridoxine
Thank u God 
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Mucosal neuromas occur in all MEN2B patients, and marfanoid habitus occurs in 65%. About 5% of MEN2 cases are MEN2B
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the remaining ones i guess are rare stuff we dont need to know
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