Congenital geniculate quadruple sectoranopia with occipital heterotopia

Kaori Hanai; Masato Hashimoto; Futoshi Ishikawa; Hirohiko Nakamura

doi:10.1016/j.ajoc.2020.100929

Congenital geniculate quadruple sectoranopia with occipital heterotopia

Am J Ophthalmol Case Rep. 2020 Sep 17:20:100929. doi: 10.1016/j.ajoc.2020.100929. eCollection 2020 Dec.

Authors

Kaori Hanai¹, Masato Hashimoto¹, Futoshi Ishikawa², Hirohiko Nakamura³

Affiliations

¹ Department of Ophthalmology, Nakamura Memorial Hospital, S-1, W-14, Chuo-ku, Sapporo, Japan.
² Fushiminishisen Ishikawa Eye Clinic, S-20, W-14, Chuo-ku, Sapporo, Japan.
³ Department of Neurosurgery, Nakamura Memorial Hospital, S-1, W-14, Chuo-ku, Sapporo, Japan.

Abstract

Purpose: To report a case of congenital geniculate quadruple sectoranopia associated with occipital heterotopia.

Observations: A 51-year-old healthy woman was incidentally found to have a left incongruous quadruple sectoranopia. Analysis of the macular ganglion cell complex (GCC) revealed homonymous hemianopic thinning of the inner layer of the retina. Brain magnetic resonance imaging (MRI) showed congenital occipital heterotopia, characterized by hypertrophy of the right parahippocampal gyrus, lingual gyrus, and isthmus of the cingulate gyrus, with shrinkage of the white matter. In addition, serial coronal images on a short tau inversion recovery (STIR) sequence demonstrated an atrophic right optic tract.

Conclusion and importance: Congenital geniculate quadruple sectoranopia is extremely rare and may be caused by congenital occipital heterotopia.

Keywords: Geniculate hemianopia; Incongruous homonymous hemianopia heterotopia; Quadruple sectoranopia; lateral geniculate nucleus.

Publication types

Case Reports