Osteosarcoma of the maxilla. Case report and ultrastructural study.
Int J Oral Maxillofac Surg
; 20(4): 232-5, 1991 Aug.
Article
en En
| MEDLINE
| ID: mdl-1940501
ABSTRACT
An osteosarcoma, occurring in the maxillary alveolar ridge of a 17-year-old girl is presented. The tumor consisted predominantly of pleomorphic, mainly osteoblast-like and anaplastic cells. At the ultrastructural level the osteoblast-like cells were characterised by excentrically situated lobed nuclei, extensively swollen, dilated and rough endoplasmic reticulum (RER), polymorphism of mitochondria and sparse Golgi-systems. The undifferentiated cells were characterized by large, electron-lucent nuclei and paucity of non-dilated RER and mitochondria. The intercellular matrix contained collagen fibers with areas of focal collections of calcification.
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Banco de datos:
MEDLINE
Asunto principal:
Neoplasias Maxilares
/
Osteosarcoma
Límite:
Adolescent
/
Female
/
Humans
Idioma:
En
Año:
1991
Tipo del documento:
Article