Search Results for: suppuration

Histologic Diagnosis of Inflammatory Skin Diseases

Deep fungal infections

…dradenitis suppurative, basically, are suppurative infundibulitides associated with granulomatous inflammation and fibrosis. Suppuration in infundibula eventuates often in draining sinuses. No organisms are demonstrable because the process essential…

Histologic Diagnosis of Inflammatory Skin Diseases

Cat-scratch disease

…d the lymph nodes of patients affected by cat-scratch disease, it being found especially in macrophages and free in zones of suppuration and necrosis. Isolation of the organism from the blood of patients has been recorded. Bibliography Bibliography…

Histologic Diagnosis of Inflammatory Skin Diseases

Arthropod assaults

…S. Dermatoses from ticks. J Am Acad Dermatol 2003;49:363-92; quiz 393-6. Shim H, Phelps RG. Intravascular fibrin thrombi and suppuration as a clue to tick bite reaction. J Cutan Pathol. 1997;24:124. (abstract) Zhu YI, Stiller MJ. Arthropods and skin…

Histologic Diagnosis of Inflammatory Skin Diseases

Infundibulitis secondary to medications systemic

…undibulitis of any noninfectious cause, with the exception of those medications topical that induce comedones in addition to suppuration, e.g., ones that are incorporated into an oil base. In short, there is no way to identify with specificity…

Differential Diagnosis in Dermatopathology

Discussions

…another by conventional microscopy. In perforating folliculitis, the epithelial channel is formed always by an infundibulum, suppuration is prominent, elastic fibers in the channel are few if present at all, and, as a, rule only a single focus of…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…y be considered “suppurative folliculitis” (even if that term is not correct precisely) is extension directly of suppuration from an infundibulum to a follicle seated immediately beneath and in continuity with it, the parts of a true…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ase in nodular vasculitis, where the arteritis induces extensive fat necrosis in adjacent lobules, followed, in sequence, by suppuration, granulomatous inflammation, and fibrosis. 10.84.2A: Vasculitis, large-vessel, mixed-cell + 10.84.2B: A mix of…

Differential Diagnosis in Dermatopathology

Discussions

…re it tends to predominate in lesions developed fully, whereas in acne vulgaris it is incidental to the suppurative process. Suppuration is common in papules of acne vulgaris where large abscesses in the dermis are accompanied by evidences of a…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ve nature of the infundibulitis. 10.27.4A: Pustular dermatitis, infundibular + 10.27.4B: Innumerable eosinophils in zones of suppuration = Eosinophilic pustular folliculitis Although changes identical with these can be seen in Ofuji’s…