Astrocitoma pilocítico da região selar/suprasselar determinando manifestações endócrinas / Pilocytic astrocytoma of sellar/suprasellar region determining endocrine manifestations
J. bras. patol. med. lab
; J. bras. patol. med. lab;49(2): 139-142, Apr. 2013. ilus, tab
Article
in En
| LILACS
| ID: lil-678244
Responsible library:
BR14.1
ABSTRACT
Pilocytic astrocytoma (PA) is a grade I glial neoplasm arising mainly in the cerebellum of children. Herein, the authors report a case of PA in a 21 year-old male patient, who presented headache, vomiting and delayed pubertal development. Serum level of cortisol and testosterone corresponded to 32.8 ug/dl and 0.19 ng/ml, respectively. The computed tomography/magnetic resonance (CT/RM) imaging showed an expansive process compromising suprasellar/hypothalamic region and determining hydrocephalus. The patient underwent resection of the process. Histological evaluation revealed a glial neoplasm constituted by loose glial tissue, small microcysts, areas of dense piloid tissue and Rosenthal fibers. The neoplastic cells were immunoreactive for glial fibrillary acidic protein (GFAP) and negative for chromogranin and synaptophysin. The diagnosis of PA was then established.
RESUMO
O astrocitoma pilocítico (AP) é uma neoplasia glial grau I encontrada principalmente no cerebelo de crianças. Os autores relatam um caso de AP em paciente masculino, 21 anos de idade, que apresenta cefaleia, vômitos e retardo do desenvolvimento puberal. Os níveis séricos de cortisol e testesterona corresponderam a 32,8 ug/dl e 0,19 ng/ml. A tomografia computadorizada/ressonância magnética (TC/RM) identificaram um processo expansivo que comprometia a região suprasselar/hipotalâmica e determinava hidrocefalia.O paciente foi submetido à ressecção do processo. À microscopia, foi identificada uma neoplasia glial constituída por tecido glial frouxo, pequenos microcistos, áreas de tecido piloide denso e fibras de Rosenthal. As células neoplásicas foram imunopositivas para glial fibrillary acidic protein (GFAP) e negativas para cromogranina e sinaptofisina. O diagnóstico de AP foi, então, estabelecido.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Astrocytoma
/
Brain Neoplasms
/
Diagnostic Imaging
/
Magnetic Resonance Imaging
/
Central Nervous System Neoplasms
/
Endocrine System Diseases
Type of study:
Diagnostic_studies
/
Prognostic_studies
Limits:
Humans
/
Male
Language:
En
Journal:
J. bras. patol. med. lab
Journal subject:
PATOLOGIA
Year:
2013
Document type:
Article
Affiliation country:
Brazil
Country of publication:
Brazil