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….

Dermatology Practical & Conceptual

See Classification of Pigmented Lesions

…artomas Collagenous nevus, papillary dermal type Nevoid hyperkeratosis of the nipple Benign neoplasms Solar lentigo, including lichen planus-like keratosis Seborrheic keratosis Malignant neoplasms Basal cell carcinoma, pigmented Solar keratosi…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Regression of lichen planus-like keratosis Regression of primary cutaneous melanoma 1. Signs of residual solar lentigo or reticulated seborrheic keratosis apparent in sections of tissue sometimes 1. No residual keratocytic neoplasm such as solar…

Differential Diagnosis in Dermatopathology


…type of superficial squamous-cell carcinoma, designated solar keratosis. Clinically, pale-cell acanthoma usually develops on a leg of women as an orange to pink papule or small plaque covered by wafer-like scales. A typical lesion has a sticky surfac…

Histologic Diagnosis of Inflammatory Skin Diseases

Hand-foot-and-mouth disease

…us membranes, e.g., erythema multiforme, fixed drug eruption, lichen planus, cicatricial pemphigoid, and pemphigus vulgaris. In the case of diseases such as erythema multiforme and fixed drug eruption, blisters in the skin may form within the epiderm…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Focus of Infection?

…se considered in some relation with neuropathy:            1, lichen planus; 2, lichen simplex (Vidal); 3, herpes simplex; 4, herpes zoster; 5, eczema (neurotic); 6, alopecia areata; 7, dermatitis herpetiformis; 8, scleroderma; 9, vitiligo. Group 3:…