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

shadow cell

one that appears in a section only as an outline. Called also ghost cell.
References in periodicals archive ?
Worcester, where it shares the stage with Griffon, Tunnel Drill, Let Down and Shadow Cell.
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.
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).
They have a high mitotic index, and they merge imperceptibly to abruptly with the keratinizing shadow cells.
The shadow cells have abundant eosinophilic cytoplasm and a negative space where the nucleus was once located (figure 2).
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.