A masquerade: An uncommon presentation of a dual infection of leprosy and human immunodeficiency virus.

Leprosy and human immunodeficiency virus (HIV) often mimic clinical features of connective tissue disease (CTD). They can present such as lupus, rheumatoid arthritis, scleroderma, or overlap syndromes and it sometimes creates confusion about the diagnosis. Serology may not be enough to differentiate the two and effective tissue biopsies are often the answer. We report the case of a 38-year-old female, who presented clinically with features of multisystem involvement suspected to be CTD, but was found to have dual infection: HIV and borderline tuberculoid leprosy.