Search Results for: hyperkeratosis

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Perforating Diseases?

…limination of a substance: elastosis perforans serpiginosa, perforating folliculitis, reactive perforating collagenosis, and hyperkeratosis follicularis et parafollicularis in cutem penetrans (Kyrle’s disease). Recently, a fifth condition,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Reactive Perforating Collagenosis?

…ythroderma (epidermolytic hyperkeratosis) for the ichthyoses. It is likely that what Kyrle described in diabetic patients as hyperkeratosis follicularis et parafollicularis in cutem penetrans was simply “perforating folliculitis” (all…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…10.60.17B: Lymphocytes around venules and in patchy lichenoid array beneath an epidermis that in foci is hypergranulotic and hyperkeratosis = “Bullous” lichen planus The tiny blister shown here is a vesicle, not a bulla, and it came into…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Verruciform Xanthoma?

…times, may go unrecognized. It is analogous to other patterns in the skin that are epithelial entirely such as epidermolytic hyperkeratosis, focal acantholytic dyskeratosis, cornoid lamellation, pale-cell acanthosis, and epithelial mucinosis and…

Dermoscopic findings in a patient with multiple piloleiomyomas

Dermoscopic findings in a patient with multiple piloleiomyomas

…ious amounts of collagen bundles. (B) The black arrows emphasize elongation of the rete ridges associated with focal compact hyperkeratosis. [Copyright: ©2012 Paschoal et al.] Discussion Cutaneous leiomyomas are rare benign tumors arising from…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…virus imposed on psoriasis. The many neutrophils signal how acute the process is; the verrucous configuration and the marked hyperkeratosis convey how chronic it is. 10.90.16A: Perivascular dermatitis, psoriasiform + 10.90.16B: Lymphocytes around…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ion of melanoma. 11.11.8A: Perivascular dermatosis, lichenoid + 11.11.8B: Lymphocytes only, acanthosis, hypergranulosis, and hyperkeratosis = Lichen planus-like keratosis, late The changes at the periphery shown here represent what is referred to as…