Open AccessRosette forming glioneuronal tumor of the fourth ventricle in squash cytology smear
Author(s) -
Amita Radhakrishnan Nair,
Chittoor Viswanathan Gopalakrishnan,
Tirur Raman Kapilamoorthy,
Natasha Radhakrishnan
Publication year - 2014
Publication title -
journal of cytology/journal of cytology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 19
eISSN - 0974-5165
pISSN - 0970-9371
DOI - 10.4103/0970-9371.151138
Subject(s) - medicine , fourth ventricle , cytology , rosette (schizont appearance) , ependymoma , pathology , squash , radiology , biology , immunology , botany
Rosette forming glioneuronal tumor (RGNT) is a recently recognized and extremely rare glioneuronal tumor occurring in the fourth ventricle. It is crucial for the cytopathologist to be aware of this entity as it can be easily mistaken for more common neoplasms occurring at this site. We present here the cytology of such a rare case of RGNT that was misdiagnosed as ependymoma. The varying cytological features of this entity, as well as the common diagnostic difficulties encountered in cytology, are highlighted in this report.