Search Results for: lymphocytes

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

…lar dermis. At the outset of the process, only a few granulocytes are huddled around venules; near the end of it, only a few lymphocytes are found there. 10.111.5A: Perivascular and interstitial dermatitis + 10.111.5B: Lymphocytes and eosinophils…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous T-cell lymphoma

…lly developed Dense patchy or diffuse infiltrates of small lymphocytes, plasma cells, neutrophils, eosinophils, and abnormal lymphocytes in lobules of the subcutaneous fat; some abnormal lymphocytes in mitosis common Phagocytosis of erythrocytes…

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

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

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

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

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

Post-inflammatory pigmentary alteration

…art, of postinflammatory changes. In addition to abnormal lymphocytes in the infiltrate of mycosis fungoides, there are many lymphocytes of inflammatory nature. Both types of lymphocytes in mycosis fungoides are epidermotropic and jolt melanin from…