Microfilaments in the cytoplasm of a neuron.

Nervous System Marker - Neurofilaments are the intermediate filaments of neurons and their processes. Positive staining with antibodies to NF is seen in neuroblastoma, medulloblastoma, and retinblastoma. Staining has been seen in non-neural neoplasms, such as Merkel cell carcinoma, and in a variety of endocrine tumors.

Intermediate fibers of neurons