By Timothy Craig Allen
Frozen sections are played whereas a sufferer is present process surgical procedure as a foundation for making an instantaneous prognosis that might effect remedy judgements. Frozen part analysis is usually a hugely challenging state of affairs for the pathologist who needs to render a prognosis fast for the sufferer and surgeon.
The Frozen part Library sequence will supply concise, straight forward, web site particular handbooks which are good illustrated and spotlight the pitfalls, artifacts and differential prognosis matters that come up within the moved quickly frozen part scenario.
Timothy Craig Allen, MD, JD, is the Chairman of the dept of Pathology, college of Texas healthiness technology heart at Tyler, Tyler, Texas.
Philip T. Cagle, MD, is Professor of Pathology, Weill scientific collage of Cornell collage, manhattan and Director of Pulmonary Pathology, The Methodist medical institution, Houston, Texas.
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Extra resources for Frozen Section Library: Lung
Compared to the appearance of small cell carcinoma on transbronchial biopsy, the carcinoma cells show some variability in size and focally more cytoplasm on frozen section. 2. High-power view shows classic features of small cell carcinoma on frozen section: nests of cohesive oval-to-rounded cells with relatively scant cytoplasm, smudged dark nuclear chromatin, and nuclear molding. In contrast to the typical appearance on transbronchial biopsy, crush artifact is not noted and some of the cells show nucleoli.
10 shows that the cells consistently have more cytoplasm than small cell carcinoma, although less than the classic non-small carcinoma. Most importantly, the nuclei consistently have an open chromatin with prominent nucleoli as compared to small cell carcinoma. Although small cell carcinoma on frozen section may have nucleoli and relatively more cytoplasm than on transbronchial biopsy, the overall cytologic features should allow one to distinguish a small cell carcinoma from a non-small cell carcinoma.
23. Low-power view shows edge of adenocarcinoma without extension of fibrosis or significant inflammation into adjacent lung parenchyma. The atypical epithelial proliferation of the cancer is disproportionate to the amount of surrounding fibrosis and inflammation. There are abundant macrophages within the adjacent alveolar spaces uninvolved by the cancer. 25. Papillary structures with fibrovascular cores lined by epithelial cells that uniformly exhibit cytologic pleomorphism and high nucleus–cytoplasm ratio obviously represent a papillary adenocarcinoma of the lung.