Search Results for: scale-crust

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

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

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…

Histologic Diagnosis of Inflammatory Skin Diseases

Advantages of the Algorithmic Method

…rd watcher. Figure 6.11 A&B. Diagnosis not known. This granulomatous, lichenoid infiltrate below an epidermis covered by scale-crust also contains lymphocytes and plasma cells, one mononuclear cell sporting a “ring mitosis.” These…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…Infiltrate of inflammatory cells not wedge-shaped 3. No mounds of parakeratosis usually 3. Mounds of parakeratosis often 4. Crust above site of spongiosis or spongiotic vesiculation sometimes 4. No crust 5. Single focus of spongiosis often at the…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…mooth infundibular papules in the axillae and periareolar region of women. Seborrheic dermatitis is accompanied by mounds of scalecrust at the lips of infundibular ostia. Rosacea, and its variants, perioral and periocular dermatitis, is affiliated…