Search Results for: neoplasms

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Dermoscopy of non-pigmented eccrine poromas: study of Mexican cases

Dermoscopy of non-pigmented eccrine poromas: study of Mexican cases

…presence of a polymorphous vascular pattern is considered to be a useful clue to differentiate between benign and malignant neoplasms. Vascular patterns, including morphology and distribution of vessels, can be useful to make a specific diagnosis,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…hich are not blue but grayish brown, one may be tempted to try it.” Arnold HL, Odom RB, James WD. Melanocytic nevi and neoplasms. In: Andrew’s Diseases of the Skin. 8th ed. Philadelphia, PA: WB Saunders Co., 1990:827. “There was…

Malignant cylindroma in a patient with Brooke-Spiegler syndrome

Malignant cylindroma in a patient with Brooke-Spiegler syndrome

…f a family. J Am Acad Dermatol 1995;33:199-206. 6. Kazakov DV, Zelger B, Rutten A, et al. Morphologic diversity of malignant neoplasms arising in preexisting spiradenoma, cylindroma, and spiradenocylindroma based on the study of 24 cases, sporadic…

Differential Diagnosis in Dermatopathology

Seborrheic keratosis, acanthotic type vs. Eccrine poroma

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Sebaceous Epithelioma?

…ceous adenoma), but it is common in sebaceous carcinoma. Sebaceous hyperplasia and sebaceous adenoma are well differentiated neoplasms, whereas sebaceous carcinoma varies from being well differentiated to so poorly differentiated it may seem…

Differential Diagnosis in Dermatopathology

Discussions

…between aggregations and epidermis can be demonstrated and, therefore, they must be considered part of a spectrum of poroid neoplasms that includes eccrine poroma, dermal duct tumor, hidroacanthoma simplex (intra-epidermal nests of cuticular and…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…oamy, filled with lipid or hemosiderin pigment. Touton giant cells may be present.” From L, Assaad D. Neoplasms, pseudoneoplasms, and hyperplasia of supporting tissue origin. In: Fitzpatrick TB, Eisen AZ, Wolff K, et al., eds. Dermatology in…

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