Shadow Cell

A pale, lightly eosinophilic (pink) cell, often devoid of a nucleus
Dermatology A pale pink, anuclear keratinocyte seen in skin adnexal tumours—e.g., pilomatricomas—cutaneous mixed tumours, proliferating trichilemmal tumourus, rare basal cell carcinomas, alopecia areata, onychomycosis, epidermoid cysts in Gardner syndrome, and dermoid cysts
Haematology See Ghost cell
Pathology A descriptive term that may be used for any cell that doesn’t stain—i.e., is negative by the immunoperoxidase stain—in tissues or in cytologic specimens, serving as vague tissue landmarks
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
"Shadow Cell" is the stuff of which block-buster action/adventure movies are made.
Shadow Cell is a fiction book based in the 1980s on real medical experiments previously conducted by the Nazis during WWII.
The band's next stop is tomorrow at The Lucky Dog Music Hall, 89 Green St., Worcester, where it shares the stage with Griffon, Tunnel Drill, Let Down and Shadow Cell.
Pilomatrixoma was diagnosed with the appearance of basaloid hair matrix cells and eosinophilic anucleated shadow cells under histologic examination.
Pilomatricomas more often affect younger patients, are characterized histologically by greater numbers of shadow cells, and tend to be less than 2.0 cm in size.
Pilomatricomas are composed of two types of cells namely basophilic and shadow cells with areas of calcification (Fig.
If fine-needle aspiration is performed, the diagnosis of PM may be made only if all major components of PM are present in the aspirate, including calcium deposition, basaloid cells and keratinized ghost or shadow cells. Previous studies show that the diagnostic accuracy rate of preoperatively diagnosing PM ranges from 0-30%, and histopathologic analysis is therefore necessary for a final diagnosis.
There is a study suggesting that apoptosis is the main mechanism leading to the development of the dead shadow cells and is most probably responsible for the biological behaviour of pilomatricoma.
Histological diagnosis of pilomatricoma is rarely difficult, with characteristic findings showing islands of ghost cells (also known as shadow cells) surrounded by basaloid cells (Fig.
Finding follicular bulbs, papillary mesenchymal bodies, trichohyalin granules, hair shafts, shadow cells, and focal CD34 staining in adjacent tumor stromal cells all favor benign entities.
FNA of the lesion commonly reveals basaloid cells, squamous cells, anucleate squames, shadow cells, foreign-body giant cells, polymorphs, and calcification in variable frequencies.
Tumors are well-circumscribed, dermal to subcutaneous nodules composed of several components, including basaloid proliferation, shadow cells, dystrophic calcifications, and foreign-body giant-cell reactions (figure 1).