Differential Diagnosis in Dermatopathology

Discussions

…catagen follicles, as they always do, enter telogen, at which point the follicles come to rest at the base of the uppermost portion of a follicle, i.e., the isthmus. At that juncture, follicles in a section from a biopsy specimen are in telogen and i…

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

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…