Differential Diagnosis in Dermatopathology

Images

Surface of dermatofibroma affiliated with follicular germs Surface of superficial basal-cell carcinoma…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Dermatofibroma, hemorrhagic papulo-nodule Kaposi’s sarcoma, hemorrhagic papulo-nodule 1. Poorly circumscribed; border sometimes jagged 1. Well-circumscribed; border smooth 2. Epidermis acanthotic and hyperpigmented 2. Epidermis thinned a…

Differential Diagnosis in Dermatopathology

Images

Dermatofibroma, hemorrhagic papulo-nodule Kaposi’s sarcoma, hemorrhagic papulo-nodule…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Dermatofibroma Desmoplastic Spitz’s nevus 1. Acanthotic epidermis often associated with induction of folliculo-sebaceous units 1. Little or no acanthosis; no induction of folliculo-sebaceous units 2. Epidermis often thinned above the cen…

Differential Diagnosis in Dermatopathology

Nodular fasciitis vs. Malignant fibrous histiocytoma

A malignant nonepithelial neoplasm (a sarcoma) presumably of perineural fibrocytes that presents itself usually on the trunk, but sometimes elsewhere, such as the extremities, face, and scalp. A papule of it tends to become a plaque, a nodule, a tum…

Differential Diagnosis in Dermatopathology

Discussions

…r of fascia, (or the subcutaneous fat at times), analogous to dermatofibroma, an inflammatory process that results from injury to the dermis (and the uppermost part of the subcutaneous fat sometimes). Some textbooks of pathology include nodular fasci…

Dermatology Practical & Conceptual

See Classification of Pigmented Lesions

…ic lesions Inflammatory Post-inflammatory hyperpigmentation Dermatofibroma Hamartomas Collagenous nevus, papillary dermal type Nevoid hyperkeratosis of the nipple Benign neoplasms Solar lentigo, including lichen planus-like keratosis Seborrhe…

Differential Diagnosis in Dermatopathology

Images

Dermatofibroma Dermatofibrosarcoma protuberans…