Search Results for: neoplasms with infundibular differentiation

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A Clinical Atlas of 101 Common Skin Diseases

Cysts and Cystic Hamartomas

Papules, nodules, and tumors that, on gross examination, are usually skin colored and, on histopathologic examination, consist of an epithelium-lined sac that contains fluid, cells, or both in the case of true cysts and of cysts that are associated…

A Clinical Atlas of 101 Common Skin Diseases

Molluscum Contagiosum

A hyperplasia of infundibular epithelium consequent to the effects of infection by a pox virus and manifesting itself clinically as one or more skin-colored, smooth-surfaced, dome-shaped papules, each with a central umbilication filled with horny…

Therapeutic Strategies in Dermatology

Folliculitis (including pseudofolliculitis barbae): Key Points

…lammation is limited to the hair follicle, classic signs of infection (dolor, calor, rubor, and tumor) may be absent, making differentiation from milaria, papulovesicular viral exanthems, and acneiform eruptions difficult. Folliculitis is a common…

A Clinical Atlas of 101 Common Skin Diseases

Nevus Sebaceus

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…

A Clinical Atlas of 101 Common Skin Diseases

Dermatofibrosarcoma Protuberans

A malignant nonepithelial neoplasm (a sarcoma) presumably of perineural fibrocytes that presents itself usually on the trunk, but sometimes elsewhere, such as the extremities, face, and scalp. A papule of it tends to become a plaque, a nodule, a…

Therapeutic Strategies in Dermatology

Pemphigus Vulgaris & Paraneoplastic Pemphigus: Key Points

…malignancy (most commonly non-Hodgkin lymphoma) or with Castleman’s disease (especially in children). Less common underlying neoplasms include Hodgkin lymphoma, chronic lymphocytic leukemia, thymoma, lung carcinoma, and sarcoma. The pathogenic…

Therapeutic Strategies in Dermatology

Oral Hairy Leukoplakia: Key Points

…may remit spontaneously in 10% of cases. OHL will also resolve in association with immune reconstitution due to anti-retroviral medications. Pseudo-OHL is clinically similar but does not contain EBV, allowing differentiation by histological…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…monstrate eccrine differentiation may recapitulate either mature or embryonic eccrine gland structure. For example, ductular differentiation in eccrine neoplasms may be either well developed, with a prominent luminal cuticle, or primitive, showing…

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