23) These types of proliferation are referred to as follicular induction (FI) (also known as follicular basal cell hyperplasia, (24) epidermal basaloid cell
hyperplasia (25) and basaloid epidermal proliferation).
The basal cell carcinoma palisading arrangement of basaloid cell
at periphery, squamous cell carcinoma (SCC) intercellular bridging or keratinization, malignant melanoma of large pleomorphic diffuse infiltration of large pleomorphic epithelioid tumor cell with melanin pigment and mucoepidermoid carcinoma sheets of mucous, squamous, and intermediate cells were found in Figure 1.
Basosquamous cell carcinoma (metatypic carcinoma, BSCC) of the dermis is a rare clinocopathologic entity which shows basaloid cell
and squamous cell carcinoma properties.
They also exhibited a dermal lymphocytic infiltrate with abundant plasma cells, which was focally present around the basaloid cell
Histology of excised tissue shows stratified squamous epithelium over fibrocollagenous stroma, cords and wide column of basaloid cell
extending into the dermal stroma from overlying epithelium, rich vascularity within stroma in between these cords, confirming the diagnosis of periungual eccrine poroma.
In this study basaloid cell
carcinoma of penis, esophagus and tonsil were found to be associated with alcohol and tobacco use.
Within the basaloid cell
islands may be seen eosinophilic centers of keratinisation.
Tubular and cribriform basal cell hyperplasia can be mistaken for adenocarcinoma, but again, the multilayered uniform basaloid cell
population is the key finding that aids in diagnostic recognition.
Poorly differentiated tumors have irregular larger basaloid cell
On histopathologic examination of a full-thickness biopsy specimen obtained from the patient's lesion, a tumoral structure composed of basaloid cells
was observed in the dermis and the cells showed palisade arrangement in the edges.
The histopathology of basal cell carcinoma consists of tumors of basaloid cells
with little cytoplasm and hyperchromatic nuclei.
The tumor of the follicular infundibulum also does not usually have sebaceous differentiation and is attached to the epidermis by thin branching cords of basaloid cells
with paler cytoplasm and more prominent peripheral palisading (1, 3, 6-7, 17).