Endocrine Mucin-Producing Sweat Gland Carcinoma

Oct 15, 2016 by in Dermatology Comments Off on Endocrine Mucin-Producing Sweat Gland Carcinoma

Fig. 28.1 Endocrine mucin-producing sweat gland carcinoma. Multiple solid lobules showing areas of cribriform architecture, duct-like structures, and extracellular mucin production To diagnose EMPSGC, the expression of specific neuroendocrine markers…

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Primary Mucinous Carcinoma of the Skin

Oct 15, 2016 by in Dermatology Comments Off on Primary Mucinous Carcinoma of the Skin

Fig. 27.1 Primary mucinous carcinoma of the skin. A dermal tumor consisting of small islands of epithelial tumor cells “floating” in large pools of slightly basophilic mucin separated by thin…

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Adenosquamous Carcinoma

Oct 15, 2016 by in Dermatology Comments Off on 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…

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Trichoblastic Carcinoma

Oct 15, 2016 by in Dermatology Comments Off on 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…

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Squamous Cell Carcinoma with Mucinous Metaplasia

Oct 15, 2016 by in Dermatology Comments Off on 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….

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Composite Hemangioendothelioma

Oct 15, 2016 by in Dermatology Comments Off on 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…

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Basal Cell Carcinoma with Matrical Differentiation

Oct 15, 2016 by in Dermatology Comments Off on 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…

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Lymphoepithelioma-Like Carcinoma

Oct 15, 2016 by in Dermatology Comments Off on 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…

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Carcinosarcoma

Oct 15, 2016 by in Dermatology Comments Off on 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…

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