Cutaneous Lymphomas and Pseudolymphomas This chapter deals primarily with primary cutaneous B- and T-cell lymphomas, that is, lymphomas that initially or primarily affect the skin, and reactive lymphoid infiltrates, which may simulate a lymphoma (pseudolymphoma). Later sections of this chapter…
This chapter includes cutaneous substances that may accumulate in abnormal amounts, such as mucin, as well as material deposits usually not present in the skin, either produced endogenously (e.g., porphyrins) or introduced as a foreign substance (e.g., tattoo pigment). Deposits…
A blister is a fluid-filled space within or beneath the epidermis. Blisters may occur as a secondary event caused by factors such as infections (e.g., viral, bacterial), ischemia (e.g., vasculitis), burns, or inflammation leading to disruption of the dermal-epidermal junction…