Search Results for: lymphocytes

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus

…, but compact orthokeratosis especially above foci of hypergranulosis Fully developed Superficial perivascular infiltrate of lymphocytes Bandlike infiltrate of lymphocytes across the upper part of the dermis, obscuring the dermoepidermal junction…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…and the injury must have occurred weeks before the biopsy specimen was taken, as evidenced by the nearly pure population of lymphocytes, rather than the dense infiltrate of neutrophils that appeared soon after the “bite.” 10.5.30A:…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…of a single type of cell is considered to be monomorphous [Gk. monos (single) + morphe (form)], examples of that being small lymphocytes in the inflammatory disease called polymorphous light eruption, abnormal lymphocytes in some lymphomas, and mast…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…uum of a solar lentigo is apparent at the periphery of the lesion, it being responsible for having induced the infiltrate of lymphocytes. 11.11.12A: Perivascular dermatosis, lichenoid + 11.11.12B: Lymphocytes, subepidermal blister, acanthosis,…

Histologic Diagnosis of Inflammatory Skin Diseases

The Algorithmic Method

….28), and of lymphocytes, neutrophils, and eosinophils, as in urtica (see Fig. 5.123). Figure 6.1 A&B. Identification of lymphocytes at scanning and high magnifications. Lymphocytes in this lesion of pernio, an expression of lupus erythematosus,…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…rtant differences between a cleft and a blister, the latter containing serum. 10.60.12A: Vesicular dermatitis, subepidermal, lymphocytes predominant + 10.60.12B: Vacuolar alteration and lymphocytes at the dermoepidermal junction junction, slight…

Histologic Diagnosis of Inflammatory Skin Diseases

Arthropod assaults

…osis; both may have a wedge-shaped, superficial and deep, perivascular and interstitial, mixed-cell infiltrate in which some lymphocytes may be large. The lymphocytes of lymphomatoid papulosis, however, in contrast to those of an insect…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…solitary units in the basal layer and in the spinous zone in company there with scant spongiosis; neither nuclear atypia of lymphocytes nor collections of lymphocytes are encountered consistently in flat or slightly raised lesions of mycosis…