Differential Diagnosis in Dermatopathology

Discussions

…s of skin diseases to be studied as they should be. A case in point is the surface of a dermatofibroma where a shave biopsy may result in overdiagnosis of the lesion as a superficial type of basal-cell carcinoma, rather than as a hyperplastic respons…

Differential Diagnosis in Dermatopathology

Common baldness vs. Telogen effluvium

Loss of hair attributable either to the effects of inflammatory cells on follicles or to physiological or mechanical factors in which inflammatory cells play no role. Although the scalp is the site most often affected, any region of the skin that be…

Differential Diagnosis in Dermatopathology

Discussions

…ne” derives from Latin “acme” which means a point. Acne vulgaris and “acne” rosacea not only have elevated (gently “pointed”) lesions in common, but both favor the middle third of the face in both horizontal…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

Loss of hair attributable either to the effects of inflammatory cells on follicles or to physiological or mechanical factors in which inflammatory cells play no role. Although the scalp is the site most often affected, any region of the skin that be…

Dermatology Practical & Conceptual

Review of Practical Dermatopathology by Ronald P. Rapini

…he groundwork for the remainder of the book. It serves as the point of orientation for the reader who is looking to solve a diagnostic dilemma, as it provides differential diagnostic lists. For instance, if one identifies interstitial dermatitis unde…

Histologic Diagnosis of Inflammatory Skin Diseases

Degos’ disease (malignant atrophic papulosis)

…one of sclerosis throughout the dermis, the apex of the wedge pointing towards the subcutaneous fat Mucin discernible, especially in the zone of sclerosis, but less than that in a fully developed lesion Adnexal epithelia absent from the zone of scler…

Dermatology Practical & Conceptual

A rare case of syphilis associated with renal and hepatic involvement

…ring continued every three months in the first year and every six months in the second year. After two years TPHA ++ was still positive but VDRL and RPR remained negative. Discussion This rare case is interesting from the nephrologic point of view du…