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Journal Information

Online ISSN
1305-3124

Established
1993

Editors-in-Chief
​Cihat Şen, ​Nicola Volpe

Editors
Daniel Rolnik, Mar Gil, Murat Yayla, Oluş Api

Statistics Editor
Resul Arısoy

Article info

Retrocerebellar arachnoid cyst. Perinatal Journal 2014;22(3):SE31-32 DOI: 10.2399/prn.14.S001084

Author(s) Information

Hicran Acar Şirinoğlu,
Resul Arısoy,
Emre Erdoğdu,
Oya Demirci,
Kaan Pakay,
Oya Pekin,
Murat Muhcu

  1. Zeynep Kamil Kadın Doğum Hastalıkları ve Çocuk Hastalıkları Hastanesi, Perinatoloji Kliniği- İstanbul TR
Correspondence

Hicran Acar Şirinoğlu, Zeynep Kamil Kadın Doğum Hastalıkları ve Çocuk Hastalıkları Hastanesi, Perinatoloji Kliniği- İstanbul TR,

Publication History
Conflicts of Interest

No conflicts declared.

Objective 
To present a prenatally diagnosed case of retrocerebellar arachnoid cyst and discussion of management for this case.
Case 
A 24 years old, gravida 1, parity 0 pregnant woman was referred to our unit because of fetus with retrocerebellar arachnoid cyst at 22 weeks gestation. A detailed ultrasound scan was revealed a single live fetus with cranial retrocerebellar arachnoid cyst that is 28mm*22mm in diameter, cisterna magna that is 13.18mm in diameter and normal cerebellum(5th-50thh). After genetic counseling about the fetus prognosis; amniocentesis was performed. The result of fetal karyotype was 46 XX.
Conclusion 
Cystic anomalies are easily recognizable in the axial transcerebellar plane in the fetus. However, their differential diagnosis can be particularly diffucult. Retrocerebellar arachnoid cyst is a cerebrospinal fluıd collection and sonographically it appears as a sonolucent cystic mass. Retrocerebellar arachnoid cyst can be diagnosed by prenatal sonography into second trimester, but it should be distinquished from mega cisterna magna, Blake's pouch cyst, Dandy-Walker malformation
Keywords

Retrocerebellar arachnoid cyst, prenatal diagnosis

File/Dsecription
Figure 1
Retrocerebellar cyst
Figure 2
Cisterna magna