Search Results for: lymphocytes

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Parapsoriasis?

…iated with wiry bundles of collagen arrayed haphazardly in the upper part of the dermis, by an epidermis peppered in loci by lymphocytes in conjunction with scant spongiosis, by lymphocytes disposed as solitary units in the basal layer in some foci,…

Histologic Diagnosis of Inflammatory Skin Diseases

Polymorphous light eruption

…antigen in the skin that is induced or liberated by ultraviolet light. Comment Moderately dense perivascular infiltrates of lymphocytes in polymorphous light eruption tend to be positioned around venules of both superficial and deep plexuses….

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…: Vesicular dermatitis, subepidermal, lymphocytes predominant + 10.28.6B: Dense perivascular and interstitial infiltrates of lymphocytes mostly, fibrin in association with lymphocytes in the subepidermal blister, and a rare eosinophil in the dermis…

Differential Diagnosis in Dermatopathology

Discussions

…units in the basal layer. In contrast to patches, plaques of mycosis fungoides are joined by denser lichenoid infiltrates of lymphocytes and with many more lymphocytes being present in the epidermis, some of them forming collections that, if sizable…

Histologic Diagnosis of Inflammatory Skin Diseases

Toxic shock syndrome

…cattered interstitially Edema of the papillary dermis Slight spongiosis and ballooning in foci epidermal Few neutrophils and lymphocytes in spongiotic foci Fully developed Perivascular and interstitial infiltrate of lymphocytes and neutrophils…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…sis of secondary syphilis should be a consideration serious because the patchy lichenoid infiltrate is not made up mostly of lymphocytes, many of the cells in the infiltrate being too pale. The two most common patterns of secondary syphilis at a…

Histologic Diagnosis of Inflammatory Skin Diseases

Persistent light reaction

…a simulator of mycosis fungoides. Virtually all authors who have written about actinic reticuloid stress the atypicality of lymphocytes. We are not at all impressed by striking abnormalities of lymphocytes in actinic reticuloid and, moreover, are…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…vascular dermatitis, interface, vacuolar + 10.21.2B: Telangiectases, smudged appearance of the dermoepidermal interface, few lymphocytes in company with vacuolar alteration along the junction, and focal parakeratosis = Dermatomyositis The changes at…

Histologic Diagnosis of Inflammatory Skin Diseases

Sarcoidosis

…iocytes, some of them multinucleate, throughout fat lobules; some collections situated in fibrous septa Dense infiltrates of lymphocytes often surrounding granulomas; infiltrates of lymphocytes sometimes sparse Slight necrosis sometimes in the…