WebbNon-small cell lung carcinoma, abbreviated NSCLC, is a malignant epithelial neoplasm of the lung that is not small cell carcinoma of the lung. It is umbrella term that includes squamous cell carcinoma of lung, … Webb3 jan. 2009 · Abstract. Combined small cell lung carcinomas (CSCLCs) are small cell lung carcinomas (SCLCs) containing discrete areas of non–small cell morphologic components, found in up to 30% of SCLCs. We assessed immunophenotypic and genotypic similarity between the distinct morphologic constituents in 7 CSCLCs.
Small round cell tumours - Libre Pathology
WebbSolar lentigo. Solar lentigines are benign lesions occurring on sun- exposed skin. Pathogenesis is related to repeated intermittent sun exposure and ultraviolet-induced mutations leading to enhanced melanin production and abnormal pigment retention by keratinocytes. Histologically, there is a conspicuous bulb-like elongation of rete ridges … WebbSmall lymphocytic lymphoma (SLL) and chronic lymphocytic leukemia (CLL) are histologically indistinguishable CLL defined as having circulating B lymphocytes > 4000/mm3 Architecture effaced by sheets of small B lymphocytes Predominant population similar to cells of primary follicles Clumped chromatin, small or inconspicuous nucleoli im.kendallhunt.com lesson 11
Small round blue cell tumors of the sinonasal tract: a differential ...
WebbHistology of herpes infections. The histology of herpes infections is very distinctive. The low power pattern of a typical lesion is of an intraepidermal blister (Figure 1). The key feature is acantholysis with solitary keratinocytes within the blister cavity (Figures 1,2,3). Keratinocytes will show nuclear changes in viral infection. WebbHistology of mycosis fungoides. In mycosis fungoides, the histopathology is characterised by infiltrates of malignant T-cells. These are small to medium in size, and characteristically have irregular cerebriform nuclei. The clinical stages ( patch, plaque, tumour) correlate with the progressive density of malignant T-cells. WebbSmall cell carcinoma is a neuroendocrine neoplasm; ultrastructurally, the cells contain cytoplasmic dense-core granules which stain positive with neuroendocrine markers (such as chromogranin). Small cell carcinoma … imkentheman