[Clinico-pathological study of extraocular muscles: a case of chronic progressive external ophthalmoplegia and a case of myotonic dystrophy].

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  • Author(s): Oohira A;Oohira A; Nishikawa T; Taneda S
  • Source:
    Nippon Ganka Gakkai zasshi [Nippon Ganka Gakkai Zasshi] 2012 Jul; Vol. 116 (7), pp. 657-63.
  • Publication Type:
    Case Reports; English Abstract; Journal Article
  • Language:
    Japanese
  • Additional Information
    • Source:
      Publisher: Nihon Ganka Gakkai Country of Publication: Japan NLM ID: 7505716 Publication Model: Print Cited Medium: Print ISSN: 0029-0203 (Print) Linking ISSN: 00290203 NLM ISO Abbreviation: Nippon Ganka Gakkai Zasshi Subsets: MEDLINE
    • Publication Information:
      Original Publication: Tokyo : Nihon Ganka Gakkai
    • Subject Terms:
      Myotonic Dystrophy/*pathology ; Oculomotor Muscles/*pathology ; Ophthalmoplegia, Chronic Progressive External/*pathology; Adult ; Female ; Humans ; Male
    • Abstract:
      Background: A small number of patients with ocular motility disorder suffer from myodystrophic disease. Clinico-pathological reports on the extraocular muscles of such patients are rare. CASE 1: A 23-year-old woman complained of a 40 prism diopter (PD) exotropia and slight ptosis palpebrae OD. Adduction was restricted bilaterally. Chronic progressive external ophthalmoplegia was suspected. The medial rectus muscle, which was resected as a part of strabismus surgery, was examined by light-microscopy. Muscle fibers were atrophic and many ragged-red-fibers were present. Eye alignment was 8 PD exophoric at 14 months after surgery. CASE 2: A 34-year-old man suffering from myotonic dystrophy presented with a 60 PD exotropia and bilateral ptosis palpebrae. Adduction was restricted bilaterally. Exotropia and ptosis OS were corrected surgically. Microscopic examination of the medial rectus muscle revealed increased adipose and collagen tissues. The muscle fibers were significantly reduced in diameter and contained multiple nuclei. The levator palpebrae muscle showed moderate atrophic change. The patient was 12 PD exophoric one month after surgery and 25 PD exotropic 8 months after surgery, and was satisfied with the results.
      Conclusion: Whenever properly indicated surgical correction is useful in treating and diagnosing strabismus due to myodystrophy when combined with pathological examinations.
    • Publication Date:
      Date Created: 20120801 Date Completed: 20121018 Latest Revision: 20151008
    • Publication Date:
      20221213
    • Accession Number:
      22844785