Arachnoid cysts of the middle cranial fossa: experience with 77 cases treated surgically.

E. Galassi, G. Gaist, G. Giuliani, E. Pozzati

Research output: Contribution to journalArticle

Abstract

Arachnoid cysts of the middle cranial fossa (Sylvian cysts), represent the most common type of intracranial leptomeningeal malformation. Among the 102 intracranial arachnoid cysts operated on at the authors' institution from January 1970 to August 1986, the 77 cases (75%) located in the middle cranial fossa are reviewed. The higher incidence in the first two decades of life (51 cases) as well as the marked predilection for the male sex (60 cases) and the left hemisphere (55 cases) are confirmed in the authors' experience. As for clinical presentation cranial deformities, symptoms of raised intracranial pressure and epilepsy constituted the most frequent features. In 13 patients a complicating lesion was associated: subdural or intracystic haematomas in 7 cases, subdural hygromas in 4 cases and, extradural haematomas in 2 cases. Based on the appearance at CT scan and the results at CT cisternography the authors proposed a classification into three basic types of increasing severity and different pathophysiologic conditions. All the patients underwent craniotomy, excision of the cyst walls and perforation into the basal cisterns. There was one postoperative death (mortality rate of 1.3%) due to meningitis. The remaining clinical results were gratifying in all three types of lesion; on follow-up CT scans the cysts of type I. and II. exhibited a steady tendency to reduction or obliteration while cerebral reexpansion seemed less evident in the third, most severe, type. The authors compare and discuss the options of radical open surgery versus shunting procedures.

Original languageEnglish
Pages (from-to)201-204
Number of pages4
JournalActa Neurochirurgica, Supplement
Volume42
Publication statusPublished - 1988

Fingerprint

Middle Cranial Fossa
Arachnoid Cysts
Cysts
Hematoma
Subdural Effusion
Mortality
Craniotomy
Intracranial Pressure
Meningitis
Epilepsy
Incidence

ASJC Scopus subject areas

  • Medicine(all)
  • Clinical Neurology

Cite this

Arachnoid cysts of the middle cranial fossa : experience with 77 cases treated surgically. / Galassi, E.; Gaist, G.; Giuliani, G.; Pozzati, E.

In: Acta Neurochirurgica, Supplement, Vol. 42, 1988, p. 201-204.

Research output: Contribution to journalArticle

Galassi, E. ; Gaist, G. ; Giuliani, G. ; Pozzati, E. / Arachnoid cysts of the middle cranial fossa : experience with 77 cases treated surgically. In: Acta Neurochirurgica, Supplement. 1988 ; Vol. 42. pp. 201-204.
@article{21ee3684004840248f9b2a2c901a67a0,
title = "Arachnoid cysts of the middle cranial fossa: experience with 77 cases treated surgically.",
abstract = "Arachnoid cysts of the middle cranial fossa (Sylvian cysts), represent the most common type of intracranial leptomeningeal malformation. Among the 102 intracranial arachnoid cysts operated on at the authors' institution from January 1970 to August 1986, the 77 cases (75{\%}) located in the middle cranial fossa are reviewed. The higher incidence in the first two decades of life (51 cases) as well as the marked predilection for the male sex (60 cases) and the left hemisphere (55 cases) are confirmed in the authors' experience. As for clinical presentation cranial deformities, symptoms of raised intracranial pressure and epilepsy constituted the most frequent features. In 13 patients a complicating lesion was associated: subdural or intracystic haematomas in 7 cases, subdural hygromas in 4 cases and, extradural haematomas in 2 cases. Based on the appearance at CT scan and the results at CT cisternography the authors proposed a classification into three basic types of increasing severity and different pathophysiologic conditions. All the patients underwent craniotomy, excision of the cyst walls and perforation into the basal cisterns. There was one postoperative death (mortality rate of 1.3{\%}) due to meningitis. The remaining clinical results were gratifying in all three types of lesion; on follow-up CT scans the cysts of type I. and II. exhibited a steady tendency to reduction or obliteration while cerebral reexpansion seemed less evident in the third, most severe, type. The authors compare and discuss the options of radical open surgery versus shunting procedures.",
author = "E. Galassi and G. Gaist and G. Giuliani and E. Pozzati",
year = "1988",
language = "English",
volume = "42",
pages = "201--204",
journal = "Acta Neurochirurgica, Supplement",
issn = "0065-1419",
publisher = "Springer Wien",

}

TY - JOUR

T1 - Arachnoid cysts of the middle cranial fossa

T2 - experience with 77 cases treated surgically.

AU - Galassi, E.

AU - Gaist, G.

AU - Giuliani, G.

AU - Pozzati, E.

PY - 1988

Y1 - 1988

N2 - Arachnoid cysts of the middle cranial fossa (Sylvian cysts), represent the most common type of intracranial leptomeningeal malformation. Among the 102 intracranial arachnoid cysts operated on at the authors' institution from January 1970 to August 1986, the 77 cases (75%) located in the middle cranial fossa are reviewed. The higher incidence in the first two decades of life (51 cases) as well as the marked predilection for the male sex (60 cases) and the left hemisphere (55 cases) are confirmed in the authors' experience. As for clinical presentation cranial deformities, symptoms of raised intracranial pressure and epilepsy constituted the most frequent features. In 13 patients a complicating lesion was associated: subdural or intracystic haematomas in 7 cases, subdural hygromas in 4 cases and, extradural haematomas in 2 cases. Based on the appearance at CT scan and the results at CT cisternography the authors proposed a classification into three basic types of increasing severity and different pathophysiologic conditions. All the patients underwent craniotomy, excision of the cyst walls and perforation into the basal cisterns. There was one postoperative death (mortality rate of 1.3%) due to meningitis. The remaining clinical results were gratifying in all three types of lesion; on follow-up CT scans the cysts of type I. and II. exhibited a steady tendency to reduction or obliteration while cerebral reexpansion seemed less evident in the third, most severe, type. The authors compare and discuss the options of radical open surgery versus shunting procedures.

AB - Arachnoid cysts of the middle cranial fossa (Sylvian cysts), represent the most common type of intracranial leptomeningeal malformation. Among the 102 intracranial arachnoid cysts operated on at the authors' institution from January 1970 to August 1986, the 77 cases (75%) located in the middle cranial fossa are reviewed. The higher incidence in the first two decades of life (51 cases) as well as the marked predilection for the male sex (60 cases) and the left hemisphere (55 cases) are confirmed in the authors' experience. As for clinical presentation cranial deformities, symptoms of raised intracranial pressure and epilepsy constituted the most frequent features. In 13 patients a complicating lesion was associated: subdural or intracystic haematomas in 7 cases, subdural hygromas in 4 cases and, extradural haematomas in 2 cases. Based on the appearance at CT scan and the results at CT cisternography the authors proposed a classification into three basic types of increasing severity and different pathophysiologic conditions. All the patients underwent craniotomy, excision of the cyst walls and perforation into the basal cisterns. There was one postoperative death (mortality rate of 1.3%) due to meningitis. The remaining clinical results were gratifying in all three types of lesion; on follow-up CT scans the cysts of type I. and II. exhibited a steady tendency to reduction or obliteration while cerebral reexpansion seemed less evident in the third, most severe, type. The authors compare and discuss the options of radical open surgery versus shunting procedures.

UR - http://www.scopus.com/inward/record.url?scp=0023785538&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023785538&partnerID=8YFLogxK

M3 - Article

C2 - 3189009

AN - SCOPUS:0023785538

VL - 42

SP - 201

EP - 204

JO - Acta Neurochirurgica, Supplement

JF - Acta Neurochirurgica, Supplement

SN - 0065-1419

ER -