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A Clinical Atlas of 101 Common Skin Diseases

Melanoma

…A patch may become a plaque or upon it may develop a papule, nodule, or tumor. A papule may develop into a nodule or tumor. The surface of an elevated lesion of melanoma tends to be uneven. When a melanoma is no longer flat, it has capability to met…

Therapeutic Strategies in Dermatology

Melanoma: Key Points

…ple). Nodular melanoma (NMM) typically presents as a solitary nodule that arises from a preexisting nevus or de novo. It may grow rapidly in thickness without radial spread (extension along the surface of the skin). Lentigo maligna melanoma (LMM) pre…

Histologic Diagnosis of Inflammatory Skin Diseases

Rheumatoid nodule

Rheumatoid nodule Presentation stereotypical Age and sex Children and adults, more often females Distribution of lesions Near joints, especially elbows, and along bony structures, particularly extensor surfaces of forearms Individual lesions Nodules…

Differential Diagnosis in Dermatopathology

Subcutaneous granuloma annulare vs. Rheumatoid nodule

…A patch may become a plaque or upon it may develop a papule, nodule, or tumor. A papule may develop into a nodule or tumor. The surface of an elevated lesion of melanoma tends to be uneven. When a melanoma is no longer flat, it has capability to met…

Histologic Diagnosis of Inflammatory Skin Diseases

Rheumatoid nodule

…A patch may become a plaque or upon it may develop a papule, nodule, or tumor. A papule may develop into a nodule or tumor. The surface of an elevated lesion of melanoma tends to be uneven. When a melanoma is no longer flat, it has capability to met…

Therapeutic Strategies in Dermatology

Porokeratosis: Overview

…ubsequent steps Large lesions may be surgically excised. Any nodules arising in lesions of porokeratosis should be biopsied to exclude the development of squamous cell carcinoma. Pitfalls The diagnosis of porokeratosis should be confirmed by biops…

Therapeutic Strategies in Dermatology

Keloids and Hypertrophic Scars: Clinical Cases

…althy-appearing female Exophytic firm non-inflammatory tender nodule, approximately 1 cm diameter, on the right earlobe Diagnosis: keloid Treatment options discussed: intralesional corticosteroids, surgical excision, possibly both Patient opts for in…

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