© Angel Fernandez Flores, MD, PhD
Aka actinic reticuloid.
An UVR- or visible light-induced eczema.
Most severe in summer.
Pruritic scaly erythematous eruption in the sun-exposed areas, including head, neck, face and arms.
It can mimick a lymphoma.
Later, thickened lichenified plaques appear.
Parakeratosis, acanthosis and spongiosis.
Superficial perivascular inflammatory infiltrate, made of lymphocytes, mainly CD8+, some of them even convoluted.
Scattered eosinophils and plasma cells.
Multinucleated stellate myofibroblasts.
Sometimes multinucleated giant cells related to dermal elastosis.
Dense cellular infiltrate in papillary and reticular dermis, even involving the subcutis.
Multinucleate myofibroblasts are common.
Other eczemas, Seborrheic dermatitis, Atopic dermatitis: clinical information required.
Mycosis fungoides: atypical lymphocytes; Pautrier´s microabscesses; lymphocytes in a single row in the basal epidermal layer. Most cases are CD4+. Eosinophils and plasma cells are rare
© Angel Fernandez Flores