“…Early experience of cyciosporin usage in patients indicated a possible link between the drug and the development of lymphoproliferative disorders, possibly as a result of an association with the Epstein-Barr virus (Nagington & Gray 1980), A 10% incidence of lymphoma was reported in the first series of renal transplant patients receiving cyciosporin (Caine et al, 1978), Later studies have failed to confirm this high incidence with only 3 cases of lymphoma reported in a series of 58 renal transplant patients (Caine et al, 1981), Increased neoplasia is a common finding in transplant recipients (Penn 1969(Penn , 1983a, although the carcinogenic potential of cyciosporin A when used as the sole immunosuppressant agent has yet to be determined (Penn 1987), The incidence of Kaposi's sarcoma is also increased in immunosuppressed patients (Penn 1983b) and gingival Kaposi's sarcoma has occurred in two patients. This suggests the need for biopsy in cases of severe gingival overgrowth (Qunibi et al, 1988),…”