Adenosquamous Carcinoma
Fig. 4.1 Adenosquamous carcinoma. An erythematous nodule with erosive surface on the upper arm Pathology ASC is a biphasic tumor with an epithelial malignant component of conventional SCC, merging with…
Trichoblastic Carcinoma
Fig. 10.1 Trichoblastic carcinoma. A large, asymmetrical lesion composed of basaloid islands with central comedo-type necrosis is adjacent to more typical-appearing trichoblastoma Fig. 10.2 Trichoblastic carcinoma. A deep, infiltrative, basaloid…
Squamous Cell Carcinoma with Mucinous Metaplasia
Fig. 3.1 Squamous cell carcinoma with mucinous metaplasia. The tumor is characterized by an invasive SCC with large vacuolated cells scattered throughout the full epithelial thickness without glandular structures Fig….
Composite Hemangioendothelioma
Fig. 35.1 Composite hemangioendothelioma. The neoplasm is made of a complex admixture of histological components resembling various vascular lesions such as epithelioid hemangioendothelioma, spindle cell hemangioma, as well as angiosarcoma-like…
Basal Cell Carcinoma with Matrical Differentiation
Fig. 9.1 Basal cell carcinoma with matrical differentiation. This punch biopsy demonstrates a basaloid tumor with epidermal connection. There is peripheral palisading of basaloid nests and focal tumor–stroma clefting. Islands…
Lymphoepithelioma-Like Carcinoma
Fig. 7.1 Lymphoepithelioma-like carcinoma of the skin. An indurated lesion with a keratotic center on the face Pathology Histologically, LELCS is composed of islands of enlarged atypical polygonal epithelial cells…
Carcinosarcoma
Fig. 6.1 Carcinosarcoma. (a) The epithelial component with features of basal cell carcinoma admixed with the mesenchymal fibrosarcomatous component. (b) Close-up of the pleomorphic sarcomatous and carcinomatous components Fig. 6.2…
Overview of Allergens Present in the European, North American, and Chinese Baseline Series
Fig. 25.1 Bacitracin (NACS) 25.4 Benzocaine (EBS, NACS) (Fig. 25.2) Ethyl 4-aminobenzoate CAS Registry Number [94–09–7] Benzocaine is a local anesthetic derived from p-aminobenzoic acid. Cross-reactions with other p-amino compounds…
Clinical Features of Contact Dermatitis
Fig. 2.1 Atopic dermatitis of the antecubital fossa Fig. 2.2 Seborrheic dermatitis of the face Fig. 2.3 Seborrheic dermatitis of the medial aspect of the eyebrow Fig. 2.4 Nummular dermatitis…
Worker’s Protection: Gloves and Creams
Fig. 24.1 Hierarchical skin protection strategy Worker-related strategies, for example, skin protection, should be optimized by choice of adequate gloves, barrier creams, emollients, and skin cleaning products and by workers…
