title: [Merkel cell carcinoma (trabecular carcinoma) of the skin].
abstract: The Merkel cell carcinoma was first designated some years ago by the descriptive term trabecular carcinoma. Both names refer to a skin tumor occurring in elderly patients. This is another example where ultrastructural differentiating criteria are necessary for a definite diagnosis i.e., identification of so-called neurosecretory-like granules by electron microscopy. We report clinical, histological, ultrastructural, and histogenetic aspects of such a disease in a woman suffering from a metastasizing Merkel cell carcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000648:ultrastructure*; D000368:Aged; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D009489:Neurosecretion; D012867:Skin / Q000648:ultrastructure; D012878:Skin Neoplasms / Q000648:ultrastructure*
vernacular_title: Merkelzell-Karzinom (Trabekuläres Karzinom) der Haut.