Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Nodular and Diffuse Dermatitis

…province of melanoma alone, they being found in various nevi, Spitz’s nevus being the prime example of that, so, too, it is for atypical lymphocytes, which not only are seen in lymphomas, but may be met with in a lymphomatoid inflammatory proc…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Epidemic of Melanoma?

…ere flat. Illustrative of this deficiency are photomicrographs shown by Allen in the 1950s in his textbook and in articles in Cancer, captioned “Active junctional nevus;” every one of those is melanoma in situ indubitable. In short, flat…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Fibromatoses?

…(hereditary polyfibromatosis) Irradiation fibromatosisStout AP. Tumors of the soft tissues. In: Atlas of Tumor Pathology. Washington, D.C.: Armed Forces Institute of Pathology, 1953; Fascicle 5, Section II. “The fibromatoses occur in…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine, Apocrine, and Apoeccrine Sweat Glands?

…um.” Sato K. Biology of the eccrine glands and apocrine sweat glands. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatology in general medicine. 4th ed. New York, NY: McGraw-Hill International Book Co., 1993:238. “In nevus seb…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Endothelial Swelling?

nevus showed prominent erythema. Microscopic examination of a specimen from the halo showed dilatation of the dermal blood vessels, thickening of the vessel walls, and swelling of the endothelial cells; cellular infiltration was totally absent.̶…

Differential Diagnosis in Dermatopathology

Discussions

…ate when they are rubbed, a phenomenon known as Darier’s sign. A solitary lesion of juvenile xanthogranuloma may be confused clinically with a Spitz’s nevus. Each may be an orange, smooth-surfaced papule. In contrast to the expression in…