A case of false identity: Primary cutaneous diffuse large B-cell lymphoma masquerading as Madura Foot.

Primary cutaneous - diffuse large B-cell lymphoma - leg type (PC-DLBCL-LT) is a less frequent but more aggressive, and potentially curable, type of cutaneous B-cell lymphoma, with intermediate prognosis, that affects elderly individuals. Our patient with indurated, pigmented foot previously treated for Filariasis, now presented with ulcers, multiple discharging sinuses, clinically suspected to have Madura Foot. Histopathological examination confirmed a diagnosis of PC-DLBCL-LT after which he underwent below-knee amputation.