Blue Finger Syndrome: An Unusual Presentation of Rheumatoid Arthritis.

Blue Finger Syndrome (BFS) is a benign and rare condition with an idiopathic aetiology. It is characterised by an acute bluish discoloration of fingers which may be accompanied by pain. This is a case of a middle aged female who presented with painless bluish discoloration of right hand and was diagnosed to have BFS. Though BFS is idiopathic, our patient on evaluation was found to have an underlying Rheumatoid Arthritis (RA). Patients with RA are subject to Raynaud's phenomenon; but BFS presenting in a patient with RA is a rare scenario.