Papillary glioneuronal tumor radiologically mimicking a cavernous hemangioma with hemorrhagic onset.
Papillary glioneuronal tumor is a recently identified low-grade brain neoplasm classified as variant of ganglioglioma. Its salient morphological characteristics are the presence of pseudopapillary structures composed of blood vessels, often hyalinized, lined by uniform small astrocytes and a proliferation of neurocytic cells, eventually admixed with ganglioid and ganglion cells. We present a case of papillary glioneuronal tumor occurring in a 15-year-old female with an unusual hemorrhagic onset. The clinical, morphological and immunohistochemical features are discussed and the published literature is reviewed. This article proposes that papillary glioneuronal tumor should be included in the differential diagnosis of patients with tumoral related brain hemorrhage.
Buccoliero
Anna Maria
AM
Department of Human Pathology and Oncology, University of Florence, Florence, Italy. ambuccoliero@unifi.it
Giordano
Flavio
F
Mussa
Federico
F
Taddei
Antonio
A
Genitori
Lorenzo
L
Taddei
Gian Luigi
GL
D000293:Adolescent; D001932:Brain Neoplasms / Q000150:complications / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D002533:Cerebral Angiography; D002543:Cerebral Hemorrhage / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D018303:Ganglioglioma / Q000150:complications / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D020786:Hemangioma, Cavernous, Central Nervous System / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D025321:Surgery, Computer-Assisted; D014057:Tomography, X-Ray Computed