The "one-and-a-half" syndrome: case report

Maranhão-Filho, Péricles; Lopes, Helio F.; Vincent, Maurice B.

doi:10.1590/S0004-282X1996000400018

Abstracts

The authors describe a case of a ten-year-old boy with one-and-a-half syndrome secondary to a lesion at the dorsal tegmentum in the lower pons, and comment on the horizontal gaze physiology.

one-and-a-half syndrome; pons tegmentum; horizontal eye movements

Os autores descrevem o caso de um menino de dez anos de idade com sindrome "one-and-a-half" secundária a lesão no tegmento dorsal da porção inferior da ponte e comentam aspectos acerca da fisiologia da motilidade ocular conjugada horizontal.

sindrome "one-and-a-half; tegmento pontino; movimento ocular horizontal

The "one-and-a-half" syndrome: case report

Sindrome "one-and-a-half': relato de caso

Péricles Maranhão-Filho^I; Helio F. Lopes^II; Maurice B. Vincent^III

^IDepartment of Neurosurgery, National Cancer Institute (INCa), Rio de Janeiro, Brazil: Neurologist

^IIDepartment of Neurosurgery, National Cancer Institute (INCa), Rio de Janeiro, Brazil: Neurosurgeon

^IIIDepartment of Neurosurgery, National Cancer Institute (INCa), Rio de Janeiro, Brazil: Neurologist

ABSTRACT

The authors describe a case of a ten-year-old boy with one-and-a-half syndrome secondary to a lesion at the dorsal tegmentum in the lower pons, and comment on the horizontal gaze physiology.

Key-words: one-and-a-half syndrome, pons tegmentum, horizontal eye movements.

RESUMO

Os autores descrevem o caso de um menino de dez anos de idade com sindrome "one-and-a-half" secundária a lesão no tegmento dorsal da porção inferior da ponte e comentam aspectos acerca da fisiologia da motilidade ocular conjugada horizontal.

Palavras-chave: sindrome "one-and-a-half, tegmento pontino, movimento ocular horizontal.

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

Aceite: 19-junho-1996.

Dr. Péricles Maranhão Filho - Av. Canal de Marapendi 1680 apto 1802 - 22631-050 Rio de Janeiro RJ - Brasil. Fax 55.21 4395594. E-mail: pericles@uninet.com.br

1. André C, Castro ALZ, Vincent MB, Mattos JP, Maranhão-Filho PA, Novis SAP. Sindrome "one-and-a-half": considerações anatomoclínicas a propósito de um caso. Arq Neuropsiquiatr 1989;47:365-370.
2. Azevedo D Jr. Pontine tegmentum hematoma: a case report with the "one-and-a-half" syndrome without pyramidal tract deficit. Arq Neuropsiquiatr 1995;53:475-480.
3. Baker R, Highstein SM. Physiological identification of interneurons and motoneurons in the abducens nucleus. Brain Res 1975;91:292-298.
4. Bender MB. Brain control of conjugate horizontal and vertical eye movements: a survey of the structural and functional correlates. Brain 1980;103:23-69.
5. Bogousslavsky J, Meienberg O. Eye-movement disorders in brain-stem and cerebellar stroke. Arch Neurol 1987;44:141-148.
6. Büttner U, Fuhry L. Eye movements. Curr Opin Neurol 1995;8:77-82.
7. Christoff N, Anderson PJ, Nathanson M, Bender MB. Problems in anatomic analysis of lesions of the median longitudinal fasciculus. Arch Neurol 1960;2:293-304.
8. Cohen B, Komatsuzaki A, Bender MB. Eletrooculographic syndrome in monkeys after pontine reticular formation lesions. Arch Neurol 1968;18:78-92.
9. Fisher CM. Some neuro-ophthalmological observations. J. Neurol Neurosurg Psychiatry 1967;30:383-392.
10. Goebel HH, Komatsuzaki A, Bender MB, Cohen B. Lesions of the pontine tegmentum and conjugate gaze paralysis. Arch Neurol 1971;24:431-440.
11. Gordon RM, Bender MB. Visual phenomena in lesions of the median longitudinal fasciculus. Arch Neurol 1966;15:238-240.
12. Keller EL. Participation of medial pontine reticular formation in eye movement generation in monkey. J Neurophysiol 1974;37:316-332.
13. Kim SJ, Kang KJ, Lee AS, Lee MC. Isolated or predominant ocular motor nerve palsy as a manifestation of brain stem stroke. Stroke 1993;24:581-586.
14. Pierrot-Deseilligny CH, Chain F, Serdau M, Gray F, Lhermitte F. The "one-and-a-half" syndrome eletro-oculographic analyses of five cases with deductions about the physiological mechanisms of lateral gaze. Brain 1981;104:665-699.
15. Sharpe JA, Rosenberg MA, Hoyt WF, Daroff RB. Paralytic pontine exotropia: a sign of acute unilateral pontine gaze palsy and intemuclear ophthalmoplegia. Neurology 1974;24:1076-1081.
16. Wall M, Wray SH. The one-and-a-half syndrome: a unilateral disorder of the pontine tegmentum: a study of 20 cases and review of the literature. Neurology 1993;33:971-980.

Publication Dates

Publication in this collection
12 Nov 2010
Date of issue
Dec 1996

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] 1. André C, Castro ALZ, Vincent MB, Mattos JP, Maranhão-Filho PA, Novis SAP. Sindrome "one-and-a-half": considerações anatomoclínicas a propósito de um caso. Arq Neuropsiquiatr 1989;47:365-370.

[2] 2. Azevedo D Jr. Pontine tegmentum hematoma: a case report with the "one-and-a-half" syndrome without pyramidal tract deficit. Arq Neuropsiquiatr 1995;53:475-480.

[3] 3. Baker R, Highstein SM. Physiological identification of interneurons and motoneurons in the abducens nucleus. Brain Res 1975;91:292-298.

[4] 4. Bender MB. Brain control of conjugate horizontal and vertical eye movements: a survey of the structural and functional correlates. Brain 1980;103:23-69.

[5] 5. Bogousslavsky J, Meienberg O. Eye-movement disorders in brain-stem and cerebellar stroke. Arch Neurol 1987;44:141-148.

[6] 6. Büttner U, Fuhry L. Eye movements. Curr Opin Neurol 1995;8:77-82.

[7] 7. Christoff N, Anderson PJ, Nathanson M, Bender MB. Problems in anatomic analysis of lesions of the median longitudinal fasciculus. Arch Neurol 1960;2:293-304.

[8] 8. Cohen B, Komatsuzaki A, Bender MB. Eletrooculographic syndrome in monkeys after pontine reticular formation lesions. Arch Neurol 1968;18:78-92.

[9] 9. Fisher CM. Some neuro-ophthalmological observations. J. Neurol Neurosurg Psychiatry 1967;30:383-392.

[10] 10. Goebel HH, Komatsuzaki A, Bender MB, Cohen B. Lesions of the pontine tegmentum and conjugate gaze paralysis. Arch Neurol 1971;24:431-440.

[11] 11. Gordon RM, Bender MB. Visual phenomena in lesions of the median longitudinal fasciculus. Arch Neurol 1966;15:238-240.

[12] 12. Keller EL. Participation of medial pontine reticular formation in eye movement generation in monkey. J Neurophysiol 1974;37:316-332.

[13] 13. Kim SJ, Kang KJ, Lee AS, Lee MC. Isolated or predominant ocular motor nerve palsy as a manifestation of brain stem stroke. Stroke 1993;24:581-586.

[14] 14. Pierrot-Deseilligny CH, Chain F, Serdau M, Gray F, Lhermitte F. The "one-and-a-half" syndrome eletro-oculographic analyses of five cases with deductions about the physiological mechanisms of lateral gaze. Brain 1981;104:665-699.

[15] 15. Sharpe JA, Rosenberg MA, Hoyt WF, Daroff RB. Paralytic pontine exotropia: a sign of acute unilateral pontine gaze palsy and intemuclear ophthalmoplegia. Neurology 1974;24:1076-1081.

[16] 16. Wall M, Wray SH. The one-and-a-half syndrome: a unilateral disorder of the pontine tegmentum: a study of 20 cases and review of the literature. Neurology 1993;33:971-980.