Histologic Diagnosis of Inflammatory Skin Diseases

Keratosis pilaris/Lichen spinulosus

Keratosis pilaris/Lichen spinulosus Presentation stereotypical Age and sex Adolescents especially, females more than males Distribution of lesions Primarily extensor surfaces Configuration of lesions Circular in lichen spinulosus Arrangement of lesi…

Differential Diagnosis in Dermatopathology

Solar keratosis vs. Bowen’s disease

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…

Differential Diagnosis in Dermatopathology

Lichen planus vs. Lichen planus-like keratosis

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…

Differential Diagnosis in Dermatopathology

Verrucous seborrheic keratosis vs. Verrucous epidermal nevus

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…

Differential Diagnosis in Dermatopathology

Verruca vulgaris vs. Verrucous solar keratosis

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…

Differential Diagnosis in Dermatopathology

Seborrheic keratosis, acanthotic type vs. Eccrine poroma

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…

Histologic Diagnosis of Inflammatory Skin Diseases

Keratosis pilaris/Lichen spinulosus

…pule on skin damaged badly by sunlight is referred to as solar keratosis. When present as a plaque it is termed Bowen’s disease, and when present as many papules in the anogenital region it is called bowenoid papulosis. Solar keratosis, Bowen&#…