Search Results for: macule

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Parapsoriasis?

…uttate (dermatosis) parapsoriasis/digitate dermatosis simply are different expressions morphologic of mycosis fungoides at a macule/patch or subtle papule/plaque stage of the lymphoma. The diagnosis, in reality, for so-called parapsoriasis, then,…

Human papillomavirus-induced periungual pigmented Bowen’s disease

Human papillomavirus-induced periungual pigmented Bowen’s disease

Case report A 50-year-old male presented with an ill-defined hyperpigmented macule on the left pointer finger (Figure 1). The lesion was reportedly first evident one year prior to presentation. Clinically, the lesion was asymmetrical. Notably,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Palpable Purpura?

…often with purpuric papules. For example, septic vasculitides, such as gonococcemia and meningococcemia, consist of purpuric macules and papules positioned usually on the acra. Purpura in these instances results from infarction, thrombi having…

Differential Diagnosis in Dermatopathology

Dermatofibroma vs. Dermatofibrosarcoma protuberans

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…

Differential Diagnosis in Dermatopathology

Pyogenic granuloma, fully developed vs. Kaposi’s sarcoma, nodular

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…

Review of Atlas of Vulvar Pathology. 3rd ed. by EJ Wilkinson, IK Stone

Review of Atlas of Vulvar Pathology. 3rd ed. by EJ Wilkinson, IK Stone

…and not in the chapter on malignant tumors. A melanoma certainly can present as a papular lesion, but it can also occur as a macule, a plaque or an ulcer and it certainly is a malignant tumor. Another evident flaw in this classification is…

Histologic Diagnosis of Inflammatory Skin Diseases

Vitiligo

…pigmentation, and lesions are scaly. Piebaldism is congenital, spares the midline, and is associated with poliosis. Ash-leaf macule of epiloia has a characteristic shape and is present in a setting of other defects congenital. Findings…

Differential Diagnosis in Dermatopathology

Discussions

…that intersect the angiomatous elements and, at last, involutes by progressive fibrosis. Kaposi’s sarcoma begins as a macule or patch that is characterized histopathologically by an increase in number of endothelium-lined spaces with jagged…