Search Results for: vitiligo

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Langerhans’ Cell Granulomatosis?

…k et al. found by use of electron microscopy in patients with vitiligo, pentalaminar organelles in the cytoplasm of epidermal Langerhans’ cells (J Invest Dermatol 37:51). In 1965 Basset reported on a peculiar organelle that he saw through an el…

Differential Diagnosis in Dermatopathology


…e duration of it, the worse the prognosis for return of hair. Vitiligo and pitting of nails may be concurrent with alopecia areata and especially the more extensive variants of it. Histopathologically, fibrous, rather than fibrotic, tracks form in th…

Differential Diagnosis in Dermatopathology

Alopecia areata vs. Trichotillomania

An inflammatory process that is idiopathic and results in depigmentation of the skin consequent to loss of melanocytes from the epidermis, and in whitening of hair that follows loss of melanocytes from the bulb of follicles.

Histologic Diagnosis of Inflammatory Skin Diseases

Post-inflammatory pigmentary alteration

…cast. Hemochromatosis affects the skin in universal fashion. Vitiligo and disorders of depigmentation may be so extensive that they may defy determination clinical about whether the abnormality actually is the zone of light skin or of dark skin; the…

Histologic Diagnosis of Inflammatory Skin Diseases

Tinea versicolor

…on the extensor aspect of the arms, particularly in children. Vitiligo consists of depigmented macules and patches devoid of scales. Findings histopathologic Fully developed Sparse superficial perivascular infiltrate of lymphocytes; sometimes no infi…

Histologic Diagnosis of Inflammatory Skin Diseases

Study By Disease

…z #760) Viral exanthem (Quiz #821) Viral exanthem (Quiz #822) Vitiligo (Quiz #502) Wegener’s granulomatosis (Quiz #890) X-linked ichthyosis (Quiz #501) Xanthogranuloma (Quiz #106) Xanthogranuloma (Quiz #735) Zitelli’s nevus (superficial a…