Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

ABSCESS [L. abscessus (a going away)]: Clinically, a circumscribed collection of pus and histopathologically a localized collection of neutrophils. An abscess may form in the epidermis, both surface and infundibular, eccrine ducts, dermis, and subcu…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Wide and Deep Excision for Melanoma?

“Widths of excision as much as 100 mm from the edge of the lesion have been advocated and most surgeons have practiced wide excision with a 50-mm margin area without anatomical limitations.” McLeod GRC. Malignant melanoma: primary trea…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Study By Disease

“Blue nevus” (Jadassohn-Tièche) (Quiz #360) “Blue nevus” (Jadassohn-Tièche) (Quiz #525) “Blue nevus” (Masson’s blue neuronevus) (Quiz #359) “Collagenous” nevus, papillary dermal type* (Quiz #11…

Differential Diagnosis in Dermatopathology

Discussions

Criteria for differentiation of xanthogranuloma from necrobiotic xanthogranuloma pertain to lesions of xanthogranuloma that are developed fully and of necrobiotic xanthogranuloma that are evolving still. These two conditions, at those different stag…