When associated with spindle cells, as they very frequently are in tumors with mixed histology, malignant giant cells tend to form loosely cohesive aggregate structures on cytological examination.
42.
He was the first to describe the cytological appearance of cervical cells in folate deficiency, which had certain similarities with pre-neoplastic changes ( Nel, JT ).
43.
Signet ring and clear cell adenocarcinoma are no longer histological subtypes, but rather cytological features that can occur in tumour cells of multiple histological subtypes, most often solid adenocarcinoma.
44.
Until recently, members of this genus were included in the genus " Arabis ", but have been separated from that genus based on recent genetic and cytological data.
45.
CytoJournal : Desmoplastic small round cell tumour : Cytological and immunocytochemical features-Nara M Granja1, Maria D Begnami2, Jeni Bortolan2, Adhemar Longatto Filho3, 4 and Fernando C Schmitt5
46.
Panigrahi, G . ( 1992b ) Taxonomic, cytological and genetical observations on certain species of Cyclosorus parasiticus ( L . ) Farwell complex ( Thelypteridaceae Ching ex Pichi Sermolli ).
47.
This system has been replaced ( though not entirely displaced ) over the last 60 years by multivariable classifications based on ever more data . cytological, protein and DNA evidence was added.
48.
Apoptosis is characterized by well defined cytological and molecular events including a change in the refractive index of the cell, cytoplasmic shrinkage, nuclear condensation and cleavage of DNA into regularly sized fragments.
49.
Herb Wagner performed a cytological investigation in 1954 which showed that " A . ?trudellii " was a sterile triploid, wherein about 72 chromosomes paired and about 36 remained unpaired.
50.
There is no cytological evidence for sexual recombination, and meiosis has never been observed, but population genetic evidence supports the view that " Symbiodinium " periodically undergo events of sexual recombination.
