ACR	American College of Rheumatology
ANOVA	Analysis of Variance
ASyS	Anti-Synthetase Syndrome
AV/VA	Alveolar Volume
BL	B-Line
CK	Creatine Kinase
CTDs	Connective Tissue Diseases
DAD	Diffuse Alveolar Damage
DLCO	Diffusing Capacity of the Lungs for Carbon Monoxide
DM	Dermatomyositis
EC	Examiner/Operator Initials
EULAR	European Alliance of Associations for Rheumatology
FEV1	Forced Expiratory Volume in the First Second
HAQ	Health Assessment Questionnaire
HRCT	High-Resolution Computed Tomography
IBM	Inclusion Body Myositis
IIM/IIMs	Idiopathic Inflammatory Myopathies
ILD	Interstitial Lung Disease
IMACS	International Myositis Assessment and Clinical Studies
LCQ	Leicester Cough Questionnaire
LDH	Lactate Dehydrogenase
LUS/Lung US	Lung Ultrasound
MAA	Myositis-Associated Autoantibody
MDA5	Melanoma Differentiation-Associated Protein 5
MMT8	Manual Muscle Test (8 Muscles)
MRC	Medical Research Council
MSA	Myositis-Specific Autoantibody
MYOACT	Myositis Disease Activity Assessment Tool
NPV	Negative Predictive Value
NSIP	Non-Specific Interstitial Pneumonia
NXP-2	Nuclear Matrix Protein 2
OMERACT	Outcome Measures in Rheumatology
OP	Organizing Pneumonia
PFTs	Pulmonary Function Tests
PIs	Pleural Irregularities
PM	Polymyositis
PPV	Positive Predictive Value
PRO	Patient Reported Outcome
RA	Rheumatoid Arthritis
ROC	Receiver Operating Characteristic
SB	Second Operator Initials(iniziali)
SD	Standard Deviation
SGRQ	Saint George Respiratory Questionnaire
SLE	Systemic Lupus Erythematosus
SSc	Systemic Sclerosis
SRP	Signal Recognition Particle
TIF1γ	Transcription Intermediary Factor 1-gamma
TLC	Total Lung Capacity
UIP	Usual Interstitial Pneumonia
US	Ultrasound
VAS	Visual Analog Scale
VC	Vital Capacity
WS	Warrick Score