A sellar mass as the initial presentation of pituitary infiltration by diffuse large B-cell lymphoma: a case report.

Systemic lymphoma involving the pituitary region is rare and often presents with nonspecific symptoms, making diagnosis challenging. This work reports a case of diffuse large B-cell lymphoma (DLBCL) involving the pituitary gland that initially appeared as a sellar mass. The clinical presentation, diagnostic workup (including biochemical and imaging findings), and management of this condition were discussed.