Search Results for: scale-crust

Histologic Diagnosis of Inflammatory Skin Diseases

Chondrodermatitis nodularis helicis

…amous-cell carcinoma has a horn-filled cavity in its center. Findings histopathologic Early Erosion or ulceration covered by crust and situated far above the cartilage Granulation tissue in the upper part of the dermis Fully developed Erosion,…

Histologic Diagnosis of Inflammatory Skin Diseases

Sarcoidosis

…of sarcoidosis is firm grouped papules and nodules that usually exhibit no signs of alteration of surface epidermis, such as scale or crust. Cutaneous sarcoidosis, however, comes in various visages clinical, e.g., ichthyosiform patches and plaques,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…onstrued as an inflammatory process because of the marked edema of the papillary dermis, the uneven acanthosis, and the huge scalecrust. At higher magnification, however, the diagnosis of mastocytosis becomes evident; mast cells are predominant….

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphomatoid papulosis

…obscured by the infiltrate of abnormal lymphocytes Spongiosis and spongiotic vesiculation at times Erosion, ulceration, and scalecrust sometimes, the latter at times containing neutrophils Correlation clinicopathologic Papules are formed by…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…usions of cytomegalic disease are found most readily in fibrocytes, histiocytes, and endothelial cells. 10.16.3A: Ulcer with crust + 10.16.3B: Purple inclusions in nuclei of endothelial cells = Cytomegalic inclusion disease The changes…

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

Melanocytic nevi and melanoma: overlapping criteria—the degree is the key

…rmoepidermal within the upper spinous layers, nuclear crowding with atypia in areas especially with excoriation, ulceration, scalecrust, or scarring. Accordingly, in view of the foregoing, it is essential to be knowledgeable of special sites,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…eic dermatitis, not only because the biopsy specimen did not come from the face or chest, but because there are no mounds of scalecrust at lips of the infundibular ostium. A subtle “plug” of corneocytes is present in the infundibular…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…n those in dermis, and elongated mounds of parakeratosis = Mycosis fungoides, plaque Elongated mounds of parakeratosis or of scalecrust are seen often in patches and plaques of indubitable mycosis fungoides, such as in the example depicted here….