suny
Forum Newbie
Topics: 4
Posts: 5
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A 60-year-old male presents to the office and complains of muscle weakness in his extremities. Other accompanying symptoms include progressively difficulty in performing weight-carrying tasks, and a 7 kg (15 lb) weight loss during the last three months. His past medical history is insignificant. He smokes 2 packs of cigarettes daily, and consumes alcohol occasionally. His muscle strength is 3/5 in the proximal muscle groups sysmmetrically. His reflexes are normal. No sensory abnormality is present. Chest x-ray reveals a right lower lobe ill-defined mass. Which of the following is the most likely localization of the pathologic process in this patient?
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Peripheral nerves Presynaptic membrane Postsynaptic memebrane Muscle membrane Spinal cord
can any one tell me what is the diagnosis for this case?
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| drashishmahajan
Forum Senior
Topics: 6
Posts: 92
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since there is symetric muscle weakness in he elderly patient ,,, i guess ths is a type of inflamatory myopathy which in volves the muscle membrane.. there is also proximal muscle involvemnt.. also since the patient has the mmass in the lung tht takes the diagnosis to the myopathy associated wth the small cell cancer of the lung...
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| Guptashutosh
Forum Elite
Topics: 35
Posts: 354
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this is polymyositis which is associated with malignancy , here ca lung & involves proximal muscles... so far i remember it involves postsynaptic membrane
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| ts97
Forum Senior
Topics: 15
Posts: 135
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I think it's Lambert-Eaton syndrome, it affects Ca-channels, postsynaptic then
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| anjushree
Forum Guru
Topics: 64
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PRESYNAPTIC MEMB
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| robin082006
Forum Hero
Topics: 471
Posts: 5,123
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Lambert Eaton syndrome, PRESYNAPTIC MEMBE
TS97 YOU'RE RIGHT WITH THE DIAGNOSIS BUT WRONG CHOICE.
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