Ravi P, Thabah MM, Verghese RJ, Dineshbabu S, Kadhiravan T. Diagnosis of Undifferentiated Connective Tissue Disease in a Patient With Digital Gangrene and Positive Antinuclear Antibodies.
Cureus 2021;
13:e15883. [PMID:
34336409 PMCID:
PMC8312813 DOI:
10.7759/cureus.15883]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2021] [Indexed: 11/17/2022] Open
Abstract
The occurrence of ischemia of the digits or digital gangrene is a well-known complication of systemic autoimmune diseases, such as systemic sclerosis, systemic lupus erythematosus, and anti-phospholipid syndrome, among others. The pathophysiological mechanisms are small vessel vasculitis, vasospasm of Raynaud’s phenomenon, microthrombi due to antiphospholipid syndrome, and/or accompanying accelerated atherosclerosis. Digital ischemia can also occur in the context of disseminated bacterial infections and sepsis. We present here the case of a patient who had digital ischemia and positive antinuclear antibodies but without well-defined clinical features of a connective tissue disease. A diagnosis of undifferentiated connective tissue disease was made.
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