Dictionary of Medical Acronyms & Abbreviations

[ M ]

• μsec  microsecond
• MSEL  Materials Science and Engineering Laboratory; myasthenic syndrome of Eaton-Lambert
• MSEP  mean square error of prediction
• MSER  mean systolic ejection rate
• MSES  medical school environmental stress
• MSF  macrophage slowing factor; macrophage spreading factor; malignant senescent forgetfulness [Alzheimer disease]; meconium-stained fluid; Medicins sans Frontieres [Doctors without Borders]; Mediterranean spotted fever; melanocyte-stimulating factor; modified sham feeding; multiple sequence format [molecular genetics]
• MSG  molecular supergraph; monosodium L-glutamate; motion-sensitizing gradient
• MSGQ  medical student graduation questionnaire
• MSGV  mouse salivary gland virus
• MSH  medical self-help; melanocyte-stimulating hormone; melanophore-stimulating hormone; message header; Multicenter Study of Hydroxyurea
• MSHA  mannose-sensitive hemagglutination; Mine Safety and Health Administration
• MSHIF  melanocyte-stimulating hormone-inhibiting factor
• MSHR  melanocyte-stimulating hormone receptor
• MSHRF  melanocyte-stimulating hormone-releasing factor
• MSHRH  melanocyte-stimulating hormone-releasing hormone
• M-SHRSP  malignant stroke-prone spontaneously hypertensive rat
• MSHSC  multiple self-healing squamous carcinoma
• MSHT  Mount Sinai Hypertension Trial
• MSHyg  Master of Science in Hygiene
• MSI  magnetic source imaging; medium-scale integration
• MSIC  mechanically sensitive ion channels
• MSIE  Microsoft Internet Explorer
• MSIM  medical systems infrastructure modernization
• MSIS  multi-state information system
• MSJ  meatal stapedial joint
• MSK  medullary sponge kidney; Memorial Sloan-Kettering; mitogen-activated S6 kinase; musculoskeletal
• MSKCC  Memorial Sloan-Kettering Cancer Center
• MSKP  Medical Sciences Knowledge Profile
• MSL  midsternal line; multiple symmetric lipomatosis
• MSLA  morpho-synthetic lexical ambiguity; mouse-specific lymphocyte antigen
• MSLL  multifocal signal loss lesion
• MSLR  mixed skin cell-leukocyte reaction
• MSLS  Marinesco-Sjögren-like syndrome
• MSLT  Multicenter Selective Lymphadenectomy Trial; multiple sleep latency test
• MSM  medium-size molecule; men who have sex with men; midsystolic murmur; mineral salts medium
• MSMA  monosodium methanearsonate
• MSMAID  machine, suction, monitor, airway equipment, intravenous line, drugs [for bronchoscopy]
• MSMB  microseminoprotein beta
• MSMI  Multicenter Study of Myocardial Ischemia
• MS/MS  tandem mass spectrophotometry
• MSN  main sensory nucleus; Master of Science in Nursing; mildly subnormal; moesin
• MSNet  Mass Spectrometry Network
• MSO  management services organization; medial superior olive; medical staff organization
• MSOF  multiple systems organ failure
• MSOP  medical school objectives project
• MSP  macrophage stimulating protein; maximum squeeze pressure; median sagittal plane; Medicare secondary payer; microseminoprotein; Münchausen syndrome by proxy
• msp  muscle spasm
• MSPB  microseminoprotein beta
• MSPGN  mesangial proliferative glomerulonephritis
• MSPH  Master of Science in Public Health
• MSPhar  Master of Science in Pharmacy
• MSPN  medical student's progress note
• MSPQ  Modified Somatic Perception Questionnaire
• MSPS  myocardial stress perfusion scintigraphy
• MSPV  Malpais Spring virus
• MSQ  mental status questionnaire; Minnesota satisfaction questionnaire
• MSR  macrophage scavenger receptor; magnetically shielded room; Member of the Society of Radiographers; mitro-steno regurgitation; monosynaptic reflex; muscle stretch reflex
• MSRI  mixed serotonin reuptake inhibitor
• MSRPP  Multidimensional Scale for Rating Psychiatric Patients
• MSRT  Minnesota Spatial Relations Test
• MSS  Marinesco-Sjögren syndrome; Marshall-Smith syndrome; massage; Medical Superintendents' Society; Medicare Statistical System; mental status schedule; minor surgery suite; motion sickness susceptibility; mucus-stimulating substance; multiple sclerosis susceptibility; muscular subaortic stenosis
• mss  massage
• MSSA  methicillin-sensitive Staphylococcus aureus
• MSSE  multiple sclerosis self-efficacy scale; multiple self-healing squamous epithelioma
• MSSG  multiple sclerosis susceptibility gene
• MSSMI  Multicenter Study of Silent Myocardial Ischemia
• MSSVD  Medical Society for the Study of Venereal Diseases
• MST  maximal stimulation test; mean survival time; mean swell time; mercaptopyruvate sulfurtransferase; Montenegro skin test; multiple subpial transections; myeloproliferative syndrome, transient
• M-Step  maximization step
• MSTh  mesothorium
• MSTI  multiple soft tissue injuries
• MSTP  Medical Scientist Training Program [NIH]; medical student training program
• MSTS  Musculoskeletal Tumor Society
• MsTT  microsphere encapsulated tetanus toxoid
• MSU  maple sugar urine; maple syrup urine; medical studies unit; midstream specimen of urine; mid-stream urine; monosodium urate; myocardial substrate uptake
• MSUD  maple syrup urine disease
• MSurg  Master of Surgery
• MSV  maximum sustained level of ventilation; mean scale value; mean spatial velocity; Moloney sarcoma virus; monkey sarcoma virus; Muir Springs virus; murine sarcoma virus
• mSv  millisievert
• MSVC  maximal sustained ventilatory capacity
• MSW  male sex worker; Master of Social Welfare; Master of Social Work; medical social worker; multiple stab wounds
• MSWYE  modified sea water yeast extract
• MT  magnetization transfer; malaria therapy; malignant teratoma; mammary tumor; mammilothalamic tract; manual traction; Martin-Thayer [plate, medium]; mastoid tip; maximal therapy; mechanotransduction; medial thalamus; medial thickness; medical technologist; medical therapy; melatonin; membrana tympani; mesangial thickening; metallothionein; metatarsal; Metathesaurus [UMLS]; methoxytryptamine; methyltransferase; methyltyrosine; microtome; microtomography; microtubule; mid-trachea; minimal touch; minimum threshold; mitochondrial toxicity; Monroe tidal drainage; more than; motor threshold; movement time; multi-input threshold; multiple tics; Muir-Torre [syndrome]; multitest [plate]; mural thrombus or thrombosis; muscles and tendons; muscle test; music therapy; Mycobacterium tuberculosis
• M-T  macroglobulin-trypsin
• M&T  Monilia and Trichomonas
• Mt  megatonne; Mycobacterium tuberculosis
• mt  mitochondrial
• 3-MT  3-methoxytyramine
• MTA  malignant teratoma, anaplastic; medical technical assistant; medical technology assessment; medullary type adenocarcinoma; metatarsus adductus; multi-threaded architecture; myoclonic twitch activity
• mTA  meta-tyramine
• MTAC  mass transfer area coefficient
• MTACR  multiple tumor-associated chromosome region
• MTAD  membrana tympana auris dextrae
• MTAL  medullary thick ascending limb
• MTAP  methylthioadenosine phosphorylase
• MTAS  membrana tympana auris sinistrae
• MT(ASCP)  Medical Technologist certified by the American Society of Clinical Pathologists
• MTase  methyltransferase
• MTB  methylthymol blue; Michelin tire baby [syndrome]; Mycobacterium tuberculosis
• Mtb  Mycobacterium tuberculosis
• MTBE  meningeal tick-borne encephalitis; methyltertiary butyl ether
• MTBF  mean time between (or before) failures
• MTBM  mean time between maintenance
• MTBN  modifiable temporal belief network
• MTBV  Marituba virus
• MTC  magnetization transfer contrast; mass transfer coefficient; maximum tolerated concentration; maximum toxic concentration; medical test cabinet; medical training center; medullary thyroid carcinoma; metatarsocuneiform [joint]; mitomycin C
• MTCT  mother-to-child transmission
• MTD  maximum tolerated dose; mean total dose; metastatic trophoblastic disease; Midwife Teacher's Diploma; minimal topological difference; Monroe tidal drainage; multidrug therapy; multiple tic disorder; Mycobacterium tuberculosis direct test
• MTDDA  Minnesota Test for Differential Diagnosis of Aphasia
• MT-DN  multitest, dermatophytes and Nocardia [plate]
• mtDNA  mitochondrial DNA
• MTDT  modified tone decay test
• MTE  main timing event; monophasic truncated exponential
• mTERF  mitochondrial transcription termination factor
• MTET  modified treadmill exercise test
• MTF  maximum terminal flow; medical treatment facility; modulation transfer function
• mTF  mitochondrial transcription factor
• MTg  mouse thyroglobulin
• MTGA  multiple time graphic analysis
• MTGua  7-methyl-6-thioguanine
• MTGuo  7-methyl-6-thioguanosine
• MTH  mithramycin
• MTh  motor threshold
• MTHF, mTHF  5,10-methylene tetrahydrofolate
• 5-MTHF  5-methyl-tetrahydrofolate
• MTHFR  5,10-methylene tetrahydrofolate reductase
• MTI  malignant teratoma, intermediate; maximum tolerable intensity; minimum time interval; model tag image; molecular topological index; moving target indicator
• MTL  mantle zone lymphoma; medial temporal lobe
• MTLE  mesial temporal lobe epilepsy
• MTLP  metabolic toxemia of late pregnancy
• MTM  Thayer-Martin, modified [agar]; myotubular myopathy
• MT-M  multitest, mycology [plate]
• MT-MMP  membrane-type metalloproteinase
• MTMX  myotubular myopathy, X-linked
• MTO  medical technical officer; medical transport officer
• MTOC  microtubule organizing center; mitotic organizing center
• MTOP  Medical Treatment Outcomes Project
• MTOS  Major Trauma Outcomes Study
• MTP  maximum tolerated pressure; medial tibial plateau; median time to progression; metatarsophalangeal; micropayment transfer protocol; microsomal triglyceride transfer protein; microtubule protein
• MT1PA  metallothionein-1 pseudogene-A
• MTPD  mean trabecular plate density
• MTPJ  metatarsophalangeal joint
• Mt-PK  myotonic protein kinase
• MTPS  mean trabecular plate separation
• MTPT  mean trabecular plate thickness
• MTQ  methaqualone
• MTR  magnetization transfer ratio; maximum tracking rate [pacemaker]; Meinicke turbidity reaction; 5-methylthioribose; methyltetrahydrofolate:L-homocysteine; S-methyltransferase
• MTRV  Matruh virus
• MTS  magnetization transfer contrast; mechanical testing machine; Medicare transaction system; menopausal transition; mesial temporal sclerosis; methotrexate; Mohr-Tranebjaerg syndrome; multicellular tumor spheroid; musculotendinous structure
• MTST  maximal treadmill stress test
• MTT  malignant teratoma, trophoblastic; maximal treadmill test; meal tolerance test; mean transit time; methyl-thiazol-diphenyl-tetrazolium; mucous transport time; Myocarditis Treatment Trial
• MTU  malignant teratoma, undifferentiated; medical therapy unit; methylthiouracil
• MtuRRF  Mycobacterium tuberculosis ribosome recycling factor
• MTV  mammary tumor virus; metatarsus varus; Mibuna temperate virus; mild tigre virus; mouse mammary tumor virus
• MTX  methotrexate
• MT-Y  multitest yeast [plate]
• MU  megaunit; mescaline unit; methyluric [acid]; monitor unit [radiotherapy]; Montevideo unit; motion unsharpness; motor unit; mouse unit
• Mu  Mache unit
• mU  milliunit
• mu  mouse unit
• μ  Greek letter mu; chemical potential; electrophoretic mobility; heavy chain of immunoglobulin M; linear attenuation coefficient; magnetic moment; mean; micro; micrometer; micron; mutation rate; permeability
• μU  microunit
• MUA  manipulation under anesthesia; middle uterine artery; motor unit activity
• MUAP  motor unit action potential
• MUC  maximum urinary concentration; mucilage; mucin; mucosal ulcerative colitis
• muc  mucilage; mucous, mucus
• MUCV  Mucambo virus
• MUD  matched unrelated donor; minimum urticarial dose
• MUDV  Mudjinbarry virus
• MUE  motor unit estimated
• MUFA  monounsaturated fatty acids
• MUG  Massachusetts General Hospital Utility Multi-Programming System [MUMPS] Users Group
• MUGA  multiple gated acquisition [blood pool scan]
• MUGEx  multigated blood pool image during exercise
• MUGR  multigated blood pool image at rest
• MuHV  Murid herpesvirus
• mulibrey  muscle-liver-brain-eye nanism or dwarfism
• MULO  multipurpose overboot
• mult  multiple
• Multi-CSF  multi-colony-stimulating factor
• MultiODA  multivariable optimal discriminant analysis
• multip  multiparous
• MULV  Muleshoe virus
• MuLV, MuLv  murine leukemia virus
• MUMPS  Massachusetts General Hospital Utility Multi-Programming System
• MuMTv  murine mammary tumor virus
• MUNV  Munguba virus
• MUN(WI)  Munich Wistar [rat]
• MUO  myocardiopathy of unknown origin
• MUP  major urinary protein; maximal urethral pressure; motor unit potential
• mUPD  maternal uniparental disomy [UPD]
• MUPIBAC  Mupirocin in Prevention of Relapses of Wegener Granulomatosis by Elimination of Nasal Bacterial Staphylococcus aureus Carriage
• mUPID  maternal uniparental isodisomy [UPID]
• MUPIT  Martinez Universal Perineal Interstitial Template
• MURAD  Moscow-Ulm Radiation Accident Clinical History Database
• MURC  measurable undesirable respiratory contaminants
• MURCS  Müllerian duct aplasia, cervicothoracic somite dysostosis [association]
• MurNAc  N-acetylmuramate
• MURP  Master of Urban and Regional Planning
• MURV  Murre virus; Murutucu virus