Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Lentigo Maligna?

“Melanoma arising from lentigo maligna is preceded by or forms a part of a recognizable series of events affecting the melanocytic cellular system in a way similar to these stages. First, there is a long period characterized by an increase in…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Perivascular Dermatitis

See Figs. 5.16 A&B, 5.17 A&B, 5.18 A&B, 5.19 A&B, 5.20 A&B, 5.21 A&B, and 5.22 A&B Figure 5.16 A. Perivascular dermatitis, perivascular only, superficial. B. Perivascular dermatitis, perivascular only, superficial and…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.80.1A: Perivascular dermatitis, lymphocytic + 10.80.1B: Lymphocytes in tiny foci of spongiosis = Pityriasis alba  The changes could be misinterpreted as those of a flat lesion of mycosis fungoides, but the absence of any alterat…

Dermatology Practical & Conceptual

Saved by step sections: an unusual presentation of basal cell carcinoma

Abstract Background: Basal cell carcinoma usually occurs in sun exposed areas of older male individuals. Objectives: To emphasize the importance of histological step sections in the pursuit of the correct diagnosis when microscopic findings do not…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

“Cutaneous fibroma Fibroma simplex Simple fibroma of the skin, as defined above, is a benign tumor, usually appearing solitary, on the upper part of the body and the extremities, which, mainly imbedded in the skin, is only rarely and little…