AA	Avascular Area
ACPA	Anticitrullinated Protein Antibody
AD	Autoimmune Disease
ALT	Alanine Transaminase
ANA	Antinuclear Antibody
ANCA	Antineutrophil Cytoplasmic Antibody
ASAS	Antisynthetase Antibodies Syndrome
AST	Aspartate Transaminase
BC	Bushy capillary
CPK	Creatine Phosphokinase
CTD	Connective Tissue Disease
DsDNA	Anti-Double-Strain DNA
ENA	Extractable Nuclear Antigens
ESR	Erythrocyte Sedimentation Rate
GC	Giant Capillary
HRCT	High-Resolution Computed Tomography
IIM	Idiopathic Inflammatory Myopathies
ILD	Interstitial Lung Disease
IPAF	Interstitial Pneumonia with Autoimmune Features
IPF	Idiopathic Pulmonary Fibrosis
LDH	Lactic Dehydrogenase
MDT	Multidisciplinary Team
NSIP	Nonspecific Interstitial Pneumonia
NVC	Nailfold Videocapillaroscopy
PMR	Polymyalgia Rheumatica
pSS	Primary Sjӧgren’s Syndrome
RP	Raynaud’s Phenomenon
SSc	Systemic Sclerosis
UIP	Usual Interstitial Pneumonia