SLE Presenting With Unilateral Loculated Pleural Effusion in a Young Hypertensive Female: A Rare Case Report and Literature Review.

SLE can rarely present with unilateral pleural effusion or hypertension. A 28-year-old woman with loculated exudative pleural effusion was diagnosed with SLE and lupus nephritis fulfilling EULAR/ACR criteria, treated with pigtail drainage, corticosteroids, and hydroxychloroquine, with good recovery. SLE should be considered in unexplained pleural effusion for timely diagnosis.