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A Clinical Atlas of 101 Common Skin Diseases

Granuloma Annulare

An inflammatory, i.e., granulomatous, process that usually takes the form of papules which in constellation often assume annular, arcuate, and serpiginous shapes. Many variants exist, among them widespread papules, papules in photodistribution,…

A Clinical Atlas of 101 Common Skin Diseases

Dermatofibroma

…is the case for other fibrosing dermatitides, such as scars and keloids, papules and nodules of dermatofibroma shrink in time and resolve as hyperpigmented macules, some of which even may be delled….

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…This long-standing dermatofibroma has contracted markedly by virtue of the effects of fibrosis, the result being a prominent dell. In short, the scarring process has induced a “dimple,” a sign said to be characteristic of dermatofibroma….

Histologic Diagnosis of Inflammatory Skin Diseases

Dermatofibroma

…consequence of having extended well into the subcutaneous fat Smooth and sharply circumscribed or keratotic and ill-defined Delled in center, i.e., an unprovoked “dimple” sign Thinned epidermis in the center; acanthotic epidermis at the…

Differential Diagnosis in Dermatopathology

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

…is the case for other fibrosing dermatitides, such as scars and keloids, papules and nodules of dermatofibroma shrink in time and resolve as hyperpigmented macules, some of which even may be delled….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Normal, Typical, Ordinary, Banal, and Common Nevus?

…ign pigmented skin lesions, is traditionally defined on the basis of morpho-chromatic features.” Burroni M, Rubegni P, Dell’eva G, et al. The ‘common mole’ from the point of view of digital dermoscopy analysis: subjective vs….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermatofibroma?

…that is hypopigmented in its center and hyperpigmented at its periphery. Sometimes the lesion in its terminal stage forms a dell. In short, every dermatofibroma eventually shows signs of involution. Histopathologically, the cells in dermatofibroma…