PMID: 11326642May 1, 2001Paper

Expression of cytokeratins and additional markers in undifferentiated lymph node metastases of the neck

Anticancer Research
S Bartel-FriedrichH J Holzhausen

Abstract

A variety of carcinomas (CA) can metastasize to the lymph nodes of the neck. Differentiation of CA in the lymph nodes according to their resemblance to the structure of origin is the basis of histopathological diagnosis. However, during the course of the disease, e.g. tumor recurrence after ablative surgery, these tissues can completely lose the ability to imitate typical structures of the organ that gave rise to malignant transformation. This can result in the inability of the pathologist to identify the origin of the metastases. The identification of the large group of cytokeratins (CK) as a member of the family of intermediate filaments has improved the diagnosis of epithelial tissues. An attempt was made to use CK antibodies to identify the organ of origin of poorly differentiated and anaplastic lymph node metastases of the neck. We investigated 34 routinely fixed (formalin/paraffin) lymph node metastases of the neck or specimens of these metastases. The tumors differed in terms of suspected primary tumor site and differentiation. Depending on the case history, diagnosis was performed by hematoxylin-eosin staining and by immunohistochemical staining of sections using antibodies against CK (CK nos. 1-10-11, 5-6, 6-8, 7, 8, 8...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.