title: Unidentified structures in tumor cells.
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary* / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure*; D006801:Humans; D008175:Lung Neoplasms / Q000648:ultrastructure*; D008207:Lymphatic Metastasis; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged