Choroid plexus papilloma. Light and electron microscopic study

Virchows Archiv. A, Pathological Anatomy and Histopathology
N NakashimaJ Takeuchi

Abstract

Choroid plexus papilloma (CPP) was observed by light and electron microscopy, using surgically excised tissues in 7 cases and cultivated cells. CPP cells had numerous microvillous processes showing balloon-like features, lysosomes containing haemosiderin, and highly electron-dense irregular granules about 150-300 nm in diameter. Interstitial cells with highly electron-dense cytoplasm inserted their long and thin processes into the invagination of basal plasmalemma of CPP cells, occasionally breaking down the basal lamina. Many of them were located in the intercellular space among CPP cells, sometimes adhering to the ventricular surface of CPP cells. Ruthenium red stain was positive on the surface of CPP cells and was especially intense on the surface of microvilli and cilia. In culture, CPP cells and interstitial cells migrating from the CPP cell mass showed a phagocytic activity after treatment with Latex.

References

Oct 1, 1976·Journal of Neurosurgery·N R Ghatak, J M McWhorter
May 15, 1975·The Journal of Comparative Neurology·D J Allen
Dec 1, 1965·The Journal of Cell Biology·S Ito
Oct 1, 1972·Cancer·L P CarterJ D Waggener
Jan 1, 1982·Virchows Archiv. A, Pathological Anatomy and Histology·N NakashimaJ Takeuchi
Feb 1, 1965·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·D W FAWCETT
Oct 1, 1949·Journal of Neuropathology and Experimental Neurology·N RINGERTZ, A REYMOND

❮ Previous
Next ❯

Citations

Jan 1, 1989·Veterinary Pathology·J L RibasM Toivio-Kinnucan
Oct 16, 2015·Journal of Pathology and Translational Medicine·Na Rae Kim, Sung-Hye Park
Jan 1, 1987·Virchows Archiv. A, Pathological Anatomy and Histopathology·K Neilson, J P de Chadarévian
Mar 18, 2004·Neurosurgery Clinics of North America·James S Waldron, Tarik Tihan

❮ Previous
Next ❯

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.

Related Papers

Virchows Archiv. B, Cell Pathology Including Molecular Pathology
D HopwoodI A Bouchier
The Journal of Veterinary Medical Science
F UrayamaR Yamazaki
Virchows Archiv. A, Pathological Anatomy and Histopathology
Y KameyamaY Mukai
© 2021 Meta ULC. All rights reserved