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Intracranial olfactory neuroblastoma mimicking carcinoma: report of two cases
Author(s) -
NG H. K.,
POON W. S.,
POON C. Y. F.,
SOUTH J. R.
Publication year - 1988
Publication title -
histopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.626
H-Index - 124
eISSN - 1365-2559
pISSN - 0309-0167
DOI - 10.1111/j.1365-2559.1988.tb01954.x
Subject(s) - pathology , medicine , neuroblastoma , carcinoma , biology , genetics , cell culture
Two cases of olfactory neuroblastoma which presented clinically as intracranial lesions are described. Prominent features of epithelial differentiation were present, which led to initial diagnoses of poorly differentiated carcinoma. The true nature of the lesions was only established subsequently by careful histological examination, immunohistochemistry and electron microscopy. The potential towards epithelial differentiation in such tumours was emphasized and certain new histological features were described, including a biphasic epithelial and stromal pattern, papillae formation and positive staining for cytokeratin. These two cases underline the importance of exhaustive examination of poorly differentiated epithelial‐like lesions of the frontal lobes by conventional histology, immunohistochemistry and electron microscopy.