Search Results for: clear-cell variant of squamous-cell carcinoma

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Lymphocytic Infiltration of Jessner?

…pression of discoid lupus erythematosus when the reticular dermis houses formidable mucin, but neither eosinophils or plasma cells. In our view, lymphocytic infiltration of Jessner and Kanof simply is tumid lupus erythematosus. “Although many…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Malignant Spitz Nevus?

…ns of melanocytes. Every “metastasizing Spitz nevus” is a melanoma misdiagnosed as a Spitz nevus. “Spindle cell and epithelioid cell nevi with atypia and metastasis (malignant Spitz nevus) . . . At the Armed Forces Institute of…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Ichthyoses?

…ts of a clinical spectrum of disorders; generalized forms may be bullous, and localized forms may resemble linear nevi. Intracellular and intercellular edema gives the epidermis a characteristic reticular pattern in histological sections….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Capillaritis?

…affect capillaries. Small-vessel vasculitides, when developed fully, are characterized by (1) an infiltrate of inflammatory cells and (2) either fibrin in the wall of vessels or thrombi in the lumen of them, or both of those findings together. The…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Figurate Erythemas?

…te”, numerous eosinophils are present in the infiltrate. If it comes from the outer margin of the annulus, many plasma cells, in addition to lymphocytes, may be met with. The more plasma cells, the more likely it is that spirochetes of…

The long history of a melanoma associated with a congenital large plaque type blue nevus with subcutaneous cellular nodules

The long history of a melanoma associated with a congenital large plaque type blue nevus with subcutaneous cellular nodules

…a simulating a blue nevus [1]. A peculiar type of blue nevus is the so-called large plaque type blue nevus with subcutaneous cellular nodules (LPTBN-SN), a clinical variant characterized by large dimensions, plaque-like features, localization on the…

Differential Diagnosis in Dermatopathology

Discussions

…isualizable; hardly ever are melanophages noted in lichenoid purpura. The lichenoid purpura of Gougerot-Blum is one of three variants histopathologic of persistent purpuric dermatitides, a group of idiopathic, usually asymptomatic, conditions that…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cytophagic Panniculitis?

…culitis, deemed it to be a disease that clinically was confined mostly to the skin; cytopathologically, the neoplastic mononuclear cells exhibited little or no nuclear atypia; and biologically, the disease was benign. Winkelmann called the process…