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

Histologic Diagnosis of Inflammatory Skin Diseases

Grover’s disease

…usually by smooth or only slightly scaly and/or crusted erythematous papules that result from discrete foci of acantholytic cells in the epidermis and a superficial infiltrate of inflammatory cells. The papillary dermis may be edematous to some…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…over’s disease Parakeratosis in Darier’s disease is arranged in a short column, as it sometimes is in the Darier variant of Grover’s disease, but in all five variants histopathologic of Grover’s disease, parakeratosis may be…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…pemphigus foliaceus, pemphigus erythematosus, and fogo selvagem, and from staphylococcal scalded-skin syndrome. Acantholytic cells can be seen atop the base of the blister, to wit, the uppermost part of the spinous zone. If bacteria are demonstrated…

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

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Discoid Lupus Erythematosus versus Systemic Lupus Erythematosus? II

…Chilblain LE E. Lupus panniculitis (LE profundus) 1. With discoid LE 2. With systemic LE II. Subacute cutaneous LE A. Papulosquamous B. Annular C. Syndromes commonly exhibiting similar morphology 1. Neonatal LE 2. Complement deficiency syndrome…

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

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…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…