Search Results for: suppuration

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Histologic Diagnosis of Inflammatory Skin Diseases

Atypical mycobacterial infections

…with striking pseudocarcinomatous (infundibular and eccrine ductal) proliferation of keratocytes surmounted by scale-crusts. Suppuration may be present in all three locales, namely, the subcutaneous fat, the dermis, and both epidermal and eccrine…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…nfundibulitis, such as that shown here, leads to destruction of an infundibulum and of a follicle, it being a consequence of suppuration, granulomatous inflammation, and extensive fibroplasia, the latter manifested clinically as a scar. The…

Histologic Diagnosis of Inflammatory Skin Diseases

Nodular vasculitis

…masse; foam cells, fat “microcysts,” and membranous fat necrosis present also in lobules in the subcutaneous fat Suppuration met with in foci in lobules Granulomatous inflammation distributed near loci of fat necrosis and of suppuration

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ation in the skin. 10.38.10A: Nodular dermatitis, suppurative, and fibrosing dermatitis + 10.38.10B: A splinter in a zone of suppuration = Foreign body reaction to a splinter As a rule, foreign body reactions begin suppurative, end fibrotic, and in…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…enzymes released from polymorphonuclear leukocytes. Accumulation of pus in a cavity of a cavernous organ is called empyema. Suppuration in skin may manifest itself as tiny pustules (e.g., Munro’s microabscesses and Kogoj’s spongiform…

Histologic Diagnosis of Inflammatory Skin Diseases

α-1 antitrypsin deficiency

…subcutaneous tissue Late Ulceration deep Fibrosis in the panniculus adiposus Correlation clinicopathologic Fat necrosis and suppuration in lobules are responsible for the appearance of tender erythematous plaques and nodules. As the process becomes…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous Fat: Panniculitis

…esignation Majocchi’s granuloma fails to convey the manifold expressions morphologic of the process, they ranging from suppuration to fibroplasia. Figure 5.410 A&B. The cause of a distinctive lobular panniculitis: actinomyces. The…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…in pyoderma gangrenosum. 10.15.7A: Nodular and diffuse dermatitis, and panniculitis, septal and lobular + 10.15.7B: Foci of suppuration surrounded by histiocytes, some of them multinucleate, arranged in a palisade = Crohn’s disease Palisaded…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…Sulzberger-Garbe disease” is never made today, not even at NYU. Error: “Suppurative folliculitis” truly is suppuration in a follicle. Reason: What is termed “suppurative folliculitis” really is suppuration in…

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