Search Results for: eosinophils

Histologic Diagnosis of Inflammatory Skin Diseases

Drug eruptions

…ytes (some of them in clusters), and the presence at times of eosinophils; each of those signify likelihood, in the setting of a lichenoid dermatitis, of a drug being causative. All the changes just mentioned may not be present together in a particul…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Churg-Strauss Granuloma and Allergic Granulomatosis?

…In short, the granulomas they described, despite the numerous eosinophils associated with them, cannot be said to be allergic on grounds histopathologic alone. Thus, on the basis of a single finding histopathologic, i.e., an “allergic granuloma…

Histologic Diagnosis of Inflammatory Skin Diseases

Urticaria

…deep perivascular infiltrate of lymphocytes, neutrophils, and eosinophils, they being positioned very close to venules Fully developed Sparse to moderately dense superficial and, often, deep perivascular, and predominantly interstitial infiltrate of…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…d interstitial infiltrate of many neutrophils and innumerable eosinophils in infundibula and sebaceous lobules = Eosinophilic pustular folliculitis Because eosinophils are more conspicuous than neutrophils in this condition, it has been termed &#8220…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…ic fibers in elastosis perforans serpiginosa, and of numerous eosinophils on collagen, as happens in “flame figures.” The term degeneration, rather than necrosis, is proper for these changes because necrosis is possible only for cells tha…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…terstitial dermatitis, mixed-cell + 10.89.1B: Lymphocytes and eosinophils around venules and a few eosinophils in the interstitium = Pruritic urticarial papules and plaques of pregnancy  The findings pictured can be distinguished from those of a resp…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…stitial dermatitis + 10.19.3B: Collections of neutrophils and eosinophils in dermal papillae and in a subepidermal space = Dermatitis herpetiformis: Neutrophils are the first to arrive in dermal papillae of dermatitis herpetiformis and are joined the…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…rivascular dermatitis, interface, lichenoid + 10.25.2B: A few eosinophils in an infiltrate of lymphocytes mostly = Drug eruption The presence of eosinophils in a lesion that otherwise is indistinguishable histopathologically from that of Mucha-Haberm…

Histologic Diagnosis of Inflammatory Skin Diseases

Eosinophilic folliculitis

…rough papules often reveal suppurative infundibulitis rich in eosinophils. Differential diagnosis clinical Suppurative infundibulitis of another kind, either infectious or noninfectious, may be indistinguishable. Insect “bites” induce pap…