Primary omental tumor with ultrastructural features of cellular schwannoma and absence of S-100 antigen reactivity.

@article{Martorell1989PrimaryOT,
  title={Primary omental tumor with ultrastructural features of cellular schwannoma and absence of S-100 antigen reactivity.},
  author={M A Martorell and M. C. Calabuig and Antonio Llombart-Bosch and J. Esquerdo},
  journal={Pathology, research and practice},
  year={1989},
  volume={185 4},
  pages={480-5; discussion 486-7}
}
We report a primary well-delimited, large mesenchymal omental neoplasm which appeared in a 58 year old man without neurofibromatous traces. The histological and ultrastructural features were consistent with a Schwann cell origin. However, repeated immunohistochemical reactions failed to demonstrate protein S-100 antigen reactivity in the neoplastic cells… CONTINUE READING