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Histologic Diagnosis of Inflammatory Skin Diseases

Images

…replete with fibrin, is typical of rheumatoid nodule. Findings similar to these are met with in some patients with rheumatic fever. 10.93.2A: Panniculitis, lobular, granulomatous + 10.93.2B: Epithelioid histiocytes aligned in a palisade aro…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Figurate Erythemas?

…hema, annular eruption of lupus erythematosus, and the carrier state of chronic granulomatous disease. How dire is the prognosis for a student for comprehending the meaning of figurate erythemas becomes apparent in the opening sentence of the section…

Histologic Diagnosis of Inflammatory Skin Diseases

Farmyard pox

…wane and become dark Differential diagnosis clinical Pyogenic granuloma resembles farmyard pox, especially in the weeping stage of it, but pyogenic granuloma favors sites such as face, sole, and nail fold. Cowpox presents itself as widespread vesicu…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Discoid Lupus Erythematosus Versus Systemic Lupus Erythematosus?* I

…develop systemic disease…” McKee PH, Calonje E, Granter SR. Pathology of the Skin. 3rd ed. 2005:775. Once upon a time, dermatologists and pathologists could never conceive of psoriasis, dermatitis herpetiformis, and granuloma faciale/erythema…

Histologic Diagnosis of Inflammatory Skin Diseases

Psoriasis

Psoriasis Presentation stereotypical Age and sex Persons of any age and of both sexes Distribution of lesions Localized, e.g., single papule or plaque, or universal, i.e., erythroderma; between these extremes, a preference for elbows and knees, scal…

Histologic Diagnosis of Inflammatory Skin Diseases

Seborrheic dermatitis

…that widen infundibular ostia. Dermatophytosis in the form of Majocchis granuloma may involve the face by red scaly plaques that do not favor “seborrheic sites.” Dandruff should be considered in the differential diagnosis, but it…

Histologic Diagnosis of Inflammatory Skin Diseases

Incontinentia pigmenti

…tophytes, but, on occasion, eosinophils predominate in foci of spongiosis. Infundibulitides that represent a response to dermatophytes, such as that named for Majocchi, nearly always are suppurative, but, episodically, neutrophils in that circumstanc…

Differential Diagnosis in Dermatopathology

Discussions

…lymphocytes accompanied by extravasated erythrocytes early and siderophages later. The persistent purpuric variant of Doucas and Kapetenakis is marked by spongiosis. The expression of the process known for Majocchi is typified by annular lesions clin…

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