Search Results for: hyperkeratosis

Differential Diagnosis in Dermatopathology

Discussions

…pillary dermis and the epidermis. Both conditions may display hyperkeratosis, epidermal hyperpigmentation, papillomatosis, melanophages, and an increased number of fibrocytes in a thickened pale-staining papillary dermis. Whereas nevus verrucosus is…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Chondrodermatitis Nodularis Helicis?

…of infundibular epidermis associated with hypergranulosis and hyperkeratosis of infundibula. When animated scratching or analogous trauma supervenes, an erosion or ulceration develops, which is covered by crust. Seated beneath an ulcer or at the base…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Discoid Lupus Erythematosus versus Systemic Lupus Erythematosus? II

…nd 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, de la Brassinne M. Hyperkeratotic nail discoid lupus erythematos…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s 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 enzymes released from neutrophils. Those effects could be the re…

Differential Diagnosis in Dermatopathology

Pale-cell acanthoma vs. Psoriasis, plaque expression

A keratotic condition of the palms and soles, inherited usually, but sometimes acquired, in which involvement may be diffuse, circumscribed (including striate), or punctate.

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Occlusion Triad?

…es of the follicular occlusion triad appears to be follicular hyperkeratosis leading to retention of follicular products.” Lever WF, Schaumburg-Lever G. Bacterial disease. In: Histopathology of the skin. 7th ed. Philadelphia, PA: JB Lippincott,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Sclerotic Fibroma?

…gic analogous to patterns of epithelium such as epidermolytic hyperkeratosis, focal acantholytic dyskeratosis, cornoid lamellation, pale-cell acanthosis, and epithelial mucinosis, and to patterns of non-epithelium like keloidal collagen. Each of thos…

Histologic Diagnosis of Inflammatory Skin Diseases

Non-bullous congenital ichthyosiform erythroderma

…rmal nevus characterized histopathologically by epidermolytic hyperkeratosis. Ichthyosis linearis circumflexa is a manifestation cutaneous of Netherton’s disease marked histopathologically by spongiotic dermatitis, and nonbullous congenital ich…