Child's Nervous System

, Volume 30, Issue 9, pp 1583–1588

An endolymphatic sac tumor with imaging features of aneurysmal bone cysts: differential diagnostic considerations

  • Bálint Alkonyi
  • Thomas Günthner-Lengsfeld
  • Kristen Rak
  • Johannes Nowak
  • László Solymosi
  • Rudolf Hagen
Case Report



Endolymphatic sac tumors (ELSTs) are rare, slow-growing tumors of the petrous bone. Despite the typical localisation, their radiological diagnosis can be challenging due to the variety of other tumors potentially showing similar features.

Case report

We present a 16-year-old child with progressive hearing loss, vertigo, and tinnitus who had a large petrous bone lesion showing imaging features of both ELSTs and aneurysmal bone cysts (ABCs). The patient underwent preoperative embolization of the tumor-supplying vessels and subsequently a subtotal resection. Histological examination revealed an ELST.


Despite the rarity of petrous bone ABCs, they should be considered as a differential diagnostic alternative of ELSTs due to their similar imaging appearance.


Endolymphatic sac tumor Aneurysmal bone cyst Imaging Differential diagnosis 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Bálint Alkonyi
    • 1
  • Thomas Günthner-Lengsfeld
    • 1
  • Kristen Rak
    • 2
  • Johannes Nowak
    • 1
  • László Solymosi
    • 1
  • Rudolf Hagen
    • 2
  1. 1.Department of NeuroradiologyUniversitätsklinikum WürzburgWürzburgGermany
  2. 2.Department of OtorhinolaryngologyUniversitätsklinikum WürzburgWürzburgGermany

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