Low-Grade Fibromyxoid Sarcoma

Oct 15, 2016 by in Dermatology Comments Off on Low-Grade Fibromyxoid Sarcoma

Fig. 29.1 Low-grade fibromyxoid sarcoma. Histological appearance with spindle and stellate-shaped cells, in a whorled or linear arrangement, and with collagenized and myxoid areas Fig. 29.2 Low-grade fibromyxoid sarcoma. Collagenized…

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Primary Cutaneous Adenoid Cystic Carcinoma

Oct 15, 2016 by in Dermatology Comments Off on Primary Cutaneous Adenoid Cystic Carcinoma

Fig. 17.1 Primary cutaneous adenoid cystic carcinoma. There are nests and islands of cytologically monotonous cells with cribriform architecture Fig. 17.2 Primary cutaneous adenoid cystic carcinoma. In areas, the growth…

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Malignant Proliferating Trichilemmal Tumor

Oct 15, 2016 by in Dermatology Comments Off on Malignant Proliferating Trichilemmal Tumor

Fig. 11.1 Malignant proliferating trichilemmal tumor. A single hard, slow-growing nodular swelling 3 × 3 cm on the scalp. The lesion relapsed one year after excision Pathology The diagnosis of malignancy in…

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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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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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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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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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