[librepathology.org], Histologic Features Compact orthokeratosis with focal parakeratosis Papillated skin surface A cup-shaped invagination from the epidermal surface by squamous epithelium Papillary [dermatology.cdlib.org], Histologically, the rosette sign may correspond to changes of orthokeratosis and parakeratosis (flag sign) ( Figure 5 [case shown in Figure 3 ]). [ijpmonline.org], Orthokeratosis, parakeratosis and abnormal keratinization are seen sometimes. [hopkinsmedicine.org], Histology showed foci of hyperkeratotic orthokeratosis, mild spongiosis, exocytosis, and few isolated necrotic keratinocytes; at the superficial and mid dermis, a largely There are no nuclei within the stratum corneum cells. [doi.org], Skin biopsy from follicular papules revealed hyperkeratosis and papillomatosis of epidermis with mild chronic inflammatory infiltrate in dermis as shown in Figure 3. No nucleus is seen in the cells. [onlinelibrary.wiley.com], A biopsy from the back where the rash was most suggestive clinically of acne vulgaris, showed hyperkeratosis with orthokeratosis, epidermal atrophy and extensive vacuolar [docplayer.net], COMPACT ORTHOKERATOSIS: describes the arrangement cohesive of orthokeratotic cells in a stratum corneum as it is viewed through a microscope conventional. [doi.org], […] atrophic types are the most common variants. [mousephenotype.org], Compact orthokeratosis may also be present. Orthokeratosis is hyperkeratosis without parakeratosis. In other circumstances, your dermatologist may choose to, Histologically, the rosette sign may correspond to changes of, […] atrophic types are the most common variants. 1A ), the differentiation of the epithelium being infundibular with a well-defined granular layer and, In acral skin (palms or soles), the stratum corneum exhibits thickening and compaction (“compact, In bullous lichen planus, for example, there is neither a bandlike infiltrate of lymphocytes nor marked compact. [web.archive.org], […] of Skin Diseases in ... Microscopically follicular plugging, in addition to checkerboard alternating orthokeratosis/parakeratosis, may serve as clues to PRP diagnosis. Diagnosis is usually made by presence of the unique skin lesions. [healthline.com], Histopathologic analysis showed compact orthokeratosis, focal parakeratosis, hypergranulosis, psoriasiform epidermal hyperplasia, and a dense lichenoid lymphohistiocytic infiltrate adj., adj hyperkeratot´ic.     Cutaneous lesions of CLH present [e-ijd.org], (b) Photomicrograph showing shallow extrafollicular cup shaped epidermal invaginati on fi lled with compact orthokeratosis, dermis showing dense infl ammatory infi ltrate [ncbi.nlm.nih.gov], Geometric white scales (clinically; cigarette paper-like wrinkly scales) correlated with alternating parakeratosis and orthokeratosis in the stratum corneum histopathologically