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Neurone specific enolase immunostaining in the diagnosis of breast carcinomas with neuroendocrine differentiation. Its usefulness and limitations
Author(s) -
Nesland Jahn M.,
Holm Ruth,
Johannessen Jan Vincents,
Gould Victor E.
Publication year - 1986
Publication title -
the journal of pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.964
H-Index - 184
eISSN - 1096-9896
pISSN - 0022-3417
DOI - 10.1002/path.1711480107
Subject(s) - immunostaining , neuroendocrine differentiation , enolase , pathology , mammary gland , medicine , biology , immunohistochemistry , breast cancer , cancer , prostate cancer
Thirty‐eight infiltrating ductal carcinomas, nine infiltrating lobular carcinomas, two tubular carcinomas and one papillary carcinoma were studied by light microscopy, immunocytochemistry and electron microscopy. Seventeen cases showed immunoreactivity for NSE. Immunostaining for different peptide‐hormones was observed in 12 of these 17 cases and in none of the 10 NSE‐negative cases used for controls. Scattered cells were positive for gastrin in five cases, pancreatic polypeptide in five, leu‐enkephalin in three, sub‐P in two, ACTH in one, bombesin in one and β‐endorphin in one case. Four cases revealed immunoreactivity for more than one peptide‐hormone. Typical neuroendocrine granules were seen in five cases (all positively stained for NSE). Small, electron dense granules of possible neuroendocrine nature were not found in any of the 33 NSE‐negative tumours. Our results confirm that immunoreactivity for NSE is present in a high proportion of breast carcinomas, but that neuroendocrine differentiation cannot be proved to be present in all these cases.