Search Results for: infundibulitis

Histologic Diagnosis of Inflammatory Skin Diseases

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…suppurative infundibulitis are sent flying into the dermis on rupture of the infundibulum, the result being suppurative peri-infundibulitis in addition to infundibulitis. Microorganisms found outside infundibula in zones of suppuration are expected…

Histologic Diagnosis of Inflammatory Skin Diseases

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…rocess began as a suppurative infundibulitis. Not surprisingly, pustules are a finding common clinical in rosacea. 10.94.3A: Infundibulitis, suppurative, and peri-infundibulitis, granulomatous + 10.94.3B: Histiocytes arranged in a palisade around a…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…d not be confused with “pleomorphic,” which refers to variation in size and shape of nuclei of neoplastic cells. INFUNDIBULITIS/PERI-INFUNDIBULITIS: An inflammatory disease in which the infiltrate of inflammatory cells is present either…

Histologic Diagnosis of Inflammatory Skin Diseases

Pattern Analysis in Historical Perspective

…f that being lichen planopilaris, lupus erythematosus, and, at times, secondary syphilis. Parenthetically, longstanding peri-infundibulitis alone or peri-infundibulitis in conjunction with perifolliculitis that affects only the uppermost part of the…

Histologic Diagnosis of Inflammatory Skin Diseases

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…phae tend to parasitize cornified cells of hair, inner sheath, isthmus, and infundibulum. The fungi first induce suppurative infundibulitis and peri-infundibulitis, then granulomatous peri-infundibulitis, and, later, fibrosing peri-infundibulitis

Histologic Diagnosis of Inflammatory Skin Diseases

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…lum = Lichen planopilaris Only a sparse perivascular infiltrate of lymphocytes is residual of what once was a lichenoid peri-infundibulitis and perifolliculitis. What is seen here represents the denouement of the process, analogous to atrophic…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…t is termed “suppurative folliculitis” really is suppuration in infundibular epidermis, i.e., suppurative “infundibulitis.” Error: “Syndrome” must be distinguished clearly from “disease.” Reason: The…

Differential Diagnosis in Dermatopathology

Acne vulgaris, erythematous papule vs. Rosacea, erythematous papule

An inflammatory process, caused by the spirochete Treponema pallidum, that tends to evolve through three stages, namely, primary (typified usually by a solitary chancre), secondary (characterized by widespread macules and papules on skin and mucous…

Histologic Diagnosis of Inflammatory Skin Diseases

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…ce, mark this lesion as being that of lupus erythematosus. 10.63.10A: Perivascular dermatitis, interface, vacuolar, and peri-infundibulitis/perifolliculitis + 10.63.10B: Mucin in the reticular dermis, telangiectases, sclerosis in the upper dermis,…