Search Results for: hyperkeratosis

Differential Diagnosis in Dermatopathology

Discussions

…osis.” That latter pattern is analogous to other distinctive patterns of epithelium in the skin, such as epidermolytic hyperkeratosis, focal acantholytic dyskeratosis, cornoid lamellation, and epithelial (follicular) mucinosis. When pale-cell…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…air = Suppurative infundibulitis of bacterial cause Because this lesion is domed and infundibula display hypergranulosis and hyperkeratosis, it must have been rubbed persistently and forcefully, probably because of effects pruritogenic on nerves of…

Differential Diagnosis in Dermatopathology

Discussions

…cosus and acanthosis nigricans are processes that affect the papillary dermis and the epidermis. Both conditions may display hyperkeratosis, epidermal hyperpigmentation, papillomatosis, melanophages, and an increased number of fibrocytes in a…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Chondrodermatitis Nodularis Helicis?

…eratosis surface epidermal hyperplasia, and marked hyperplasia of infundibular epidermis associated with hypergranulosis and hyperkeratosis of infundibula. When animated scratching or analogous trauma supervenes, an erosion or ulceration develops,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous Horn?

…icate whether the keratosis is a verruca, a seborrheic keratosis, or a solar keratosis (or an acrokeratosis verruciformis, a hyperkeratosis lenticularis, a keratoacanthoma). Squamous papilloma describes the appearance histopathologic of any digitate…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Discoid Lupus Erythematosus versus Systemic Lupus Erythematosus? II

…ociated with mild systemic illness. Weedon D. Skin Pathology. 2nd ed. London: Churchill Livingstone. 2004:47. “Nailbed hyperkeratosis may be observed in both SLE and discoid lupus erythematosus (DLE).” Richert B, Andre J, Bourguignon R,…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…anged as solitary units and in clusters in the epidermis common 10. No dull pink globules within the epidermis as a rule 11. Hyperkeratosis, hypergranulosis, and spinous-cell hyperplasia usual 11. Hyperkeratosis not prominent; no hypergranulosis…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Occlusion Triad?

…150;237. “The common initiating event in the three diseases of the follicular occlusion triad appears to be follicular hyperkeratosis leading to retention of follicular products.” Lever WF, Schaumburg-Lever G. Bacterial disease. In:…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Pityrosporum Folliculitis and Demodectic Folliculitis?

…al Guide to Common Disorders. Philadelphia: WB Saunders Company, 1995:383. “Pityrosporum folliculitis shows follicular hyperkeratosis, inflammation of follicular epithelium, dermal abscesses, and PAS-positive budding yeast in the follicular…