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,…

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

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…

Epidermal multinucleated giant cells are not always a histopathologic clue to a herpes virus infection: multinucleated epithelial giant cells in the epidermis of lesional skin biopsies from patients with acantholytic dermatoses can histologically mimic a herpes virus infection

Epidermal multinucleated giant cells are not always a histopathologic clue to a herpes virus infection: multinucleated epithelial giant cells in the epidermis of lesional skin biopsies from patients with acantholytic dermatoses can histologically mimic a herpes virus infection

…pecimen that showed features consistent with a herpes virus infection. (A) Basophilic debris is seen within the inflammatory scale crust overlying necrosis and ulceration of the epidermis. (B) There is a suprabasilar cleft showing an intraepidermal…

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….

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,…