History of erythema nodosum if characterized by a desquamating rash while taking thalidomide, pomalidomide, or similar drugs The development of erythema nodosum as characterized by desquamating rash while taking thalidomide or similar drugs Known prior development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs. History of hypersensitivity reactions attributed to thalidomide, lenalidomide, or pomalidomide, including prior development of erythema nodosum if characterized by a desquamating rash while taking thalidomide, lenalidomide, or pomalidomide The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs Known hypersensitivity to thalidomide, lenalidomide or pomalidomide including prior development of erythema nodosum if characterized by a desquamating rash while taking thalidomide, lenalidomide or pomalidomide The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs. The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs Patients must not have prior history of desquamating rash from thalidomide at time of study entry The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs Known prior clinically relevant hypersensitivity reaction to thalidomide, including the development of erythema nodosum if characterized by a desquamating rash The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide, lenalidomide or similar drugs The development of erythema multiforme if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking lenalidomide The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide, lenalidomide or similar drugs History of erythema nodosum, characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide, lenalidomide or similar drugs in the past The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs Known hypersensitivity to thalidomide, lenalidomide or rituximab; including the development of erythema nodosum if characterized by a desquamating rash while taking thalidomide The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs History of erythema nodosum characterized by desquamating rash while taking thalidomide or similar drugs. The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs Development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs. Patient developed erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or lenalidomide drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs History of Stevens-Johnson syndrome characterized by a desquamating rash while taking thalidomide or similar drugs. The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs The development of erythema nodosum if characterized by a desquamating rash while taking thalidomide or similar drugs