Dermatology Practical & Conceptual

Tufted hemangioma: clinical case and literature review

…ular polymorphism may help in the diagnosis of Kaposi sarcoma. Angiosarcomas usually affect elderly patients and have a predilection for the scalp. Multiple mitotic figures and marked atypia are the hallmarks of angiosarcomas. The differential diagno…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology


“With the high power the hyaline is seen in very varied forms, which all show the same fuchsin red reaction. The first forms a section by itself; it comprises hyaline balls of different size, which lie free between the epithelial cells, and w…

Differential Diagnosis in Dermatopathology

Study By Disease

“Blue nevus” (Jadassohn-Tièche) (Quiz #360) “Blue nevus” (Jadassohn-Tièche) (Quiz #525) “Blue nevus” (Masson’s blue neuronevus) (Quiz #359) “Collagenous” nevus, papillary dermal type* (Quiz #11…

Differential Diagnosis in Dermatopathology


Angiolymphoid hyperplasia with eosinophilia Angiosarcoma

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Angiolymphoid hyperplasia with eosinophilia Angiosarcoma 1. Dome-shaped papules, nodules, and tumors 1. Patch or plaque usually 2. Ulceration rare 2. Ulceration common 3. Well circumscribed lesion composed of relatively few thick-walled bloo…

Differential Diagnosis in Dermatopathology


Dermatofibroma and dermatofibrosarcoma protuberans are lesions made up of dense diffuse infiltrates of mesenchymal cells in company with bundles of collagen, the two together occupying at least much of the thickness of the dermis and sometimes part…