Search Results for: lichen planus-like keratosis

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Lichen planuslike keratosis Solar keratosis with lichenoid infiltrate of lymphocytes 1. Crusts often 1. No crusts in non-traumatized lesions 2. Ortho- and parakeratosis not arranged in discrete columns 2. Ortho- and parakeratosis alternate with…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Radial Growth Phase versus Vertical Growth Phase of Melanoma?

…aternity of “vertical growth phase,” or where a solar keratosis ends and a squamous-cell carcinoma begins; solar keratosis is a superficial squamous-cell carcinoma. These exercises not only are futile, but they also deter…

Histologic Diagnosis of Inflammatory Skin Diseases

Definition of Inflammation in Historical Perspective

…n inflammatory response, e.g., seborrheic keratosis that in the face of an infiltrate of lymphocytes becomes a lichen planuslike keratosis and a certain kind of compound melanocytic nevus that, consequent to effects of lymphocytes, eventuates in a…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Lichen simplex chronicus Hypertrophic lichen planus 1. Granular zone thickened, but not with periodicity and in wedge shape 1. Granular zone often thickened focally at nearly periodic intervals and in wedge shape, especially in infundibula 2….

Differential Diagnosis in Dermatopathology

Discussions

…” 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…

See Classification of Pigmented Lesions

See Classification of Pigmented Lesions

…ous nevus, papillary dermal type Nevoid hyperkeratosis of the nipple Benign neoplasms Solar lentigo, including lichen planuslike keratosis Seborrheic keratosis Malignant neoplasms Basal cell carcinoma, pigmented Solar keratosis, pigmented…