carcinoma present in a lymph node of unknown primary (A, hematoxylin-eosin) lacks diffuse staining for BerEp4 (B), shows diffuse staining for cytokeratin 14 (C), except in zones of comedonecrosis, and shows patchy staining for cytokeratin 17 (D) in the metastatic epithelial component.
The most common pattern of proliferation is that of cytologically bland basaloid
cells with peripheral palisading seen within the cellular nests.
The endophytic component showed deep acanthotic growths with a periphery of mitotically active basaloid
cells and variable atypical squamous cells with frequent atypical mitoses.
The cytologic differential diagnosis of PNET includes lymphoma, neuroblastoma, embryonal rhabdomyosarcoma, small cell carcinoma, synovial sarcoma, small cell variant of melanoma, basaloid
squamous cell carcinoma and poorly differentiated non keratinized squamous cell carcinoma (13-18).
Phase I - To construct the initial data pool, the keywords "breast cancer, invasive ductal carcinoma, invasive lobular carcinoma, infiltrating ductal carcinoma, infiltrating lobular carcinoma, DCIS,ductal carcinoma, LCIS, lobular carcinoma, her2neu, her2/neu, ErbB-2, CD340, BRCA, triple negative carcinoma and basaloid
cancer" were used to search titles, abstracts, and keywords of original articles, reviews, and proceedings papers published in the SciVerse Scopus™ database (http://www.
Basosquamous cell carcinoma (metatypic carcinoma, BSCC) of the dermis is a rare clinocopathologic entity which shows basaloid
cell and squamous cell carcinoma properties.
Vulvar cancer with basaloid
histopathology in young women is often associated with HPV (69).
Well-defined, large nodular aggregates of basaloid
tumor cells extend from the epidermis into the dermis.
They also exhibited a dermal lymphocytic infiltrate with abundant plasma cells, which was focally present around the basaloid
Histological studies of HPV-induced oral cancer lesions show that the tumors are more basaloid
in nature than other oral cancer lesions.
Salivary Gland Tumour (Jerzy Klijanienko, MD, PhD,MIAC And Isam A.
Squamous cell carcinoma and basaloid
carcinoma can be differentiated from SNUC by the absence of keratinization in SNUC.