Histological appearances of the levator palpebrae superioris muscle in the Marcus Gunn phenomenon.

نویسندگان

  • R W Lyness
  • J R Collin
  • R A Alexander
  • A Garner
چکیده

The levator palpebrae superioris muscles from 12 cases of Marcus Gunn phenomenon were examined histologically by means of histochemistry and morphometry. The appearances were of a neurogenic atrophy with pathological changes occurring in both the affected side and the clinically normal side, suggesting that the causative lesion was located in the central nervous system.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Muscle spindles in the levator palpebrae superioris muscle of human foetuses.

Studies were performed on the levator palpebrae superioris muscle, isolated from foetuses aged 17 to 30 weeks. The number of muscle spindles varied from 2 in the 17th week to 7 in the 30th week. The length of the muscle spindles ranged from 20 to 500 microm, and the diameter varied from 10 to 70 microm. These observations show that the number of muscle spindles in levator palpebrae superioris m...

متن کامل

Marin-Amat syndrome: a case of acquired facial synkinesis.

To cite: Malhotra A. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013010030 DESCRIPTION Marin-Amat syndrome is a form of acquired facial synkinesis manifesting as involuntary eyelid closure on jaw opening. This often occurs following the aberrant regeneration of the facial nerve after a peripheral facial palsy. It is less recognised form of oculofacial synkine...

متن کامل

Marcus-gunn phenomenon with- mitral valve prolapse

Marcus-gunn phenomenon is a congenital and sometimes hereditary anomaly, in which a ptotic eyelid retracts momentarily when the mouth is open, or the jaw is moved. These associated movements attributed to abnormal connections between the central mechanisms innervating the pterygoid and elevator muscles. Sometimes this anomaly is associated with dual,s retraction syndrome, duplex kindneys and ur...

متن کامل

Ptosis induced by topical steroid eye drops

Rationale:Ptosis is a rare complication of periocular steroid use. Studies report that local injections of steroids produce ptosis. We describe the first 2 cases of ptosis because of long-term treatment with topical steroid eye drops. Patient concerns: Two cases admitted to our hospital because of ptosis of their right eye after long-term treatment with topical steroid eye drops. Both of them h...

متن کامل

The nerve center of the rat extrinsic ocular muscles as studied using horseradish peroxidase.

1) The author established the representation of the lower motor center of all the extrinsic ocular muscles by means of HRP labeling in the rat. 2) The muscles which are supplied by the neurons on both sides of the oculomotor nuclei are the levator palpebrae superioris, superior rectus, medial rectus, inferior oblique, inferior rectus, superior oblique and lateral rectus. 3) The muscles which ar...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The British journal of ophthalmology

دوره 72 2  شماره 

صفحات  -

تاریخ انتشار 1988