Medical abbreviations and acronyms (C)
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This article contains a list of commonly used medical abbreviations and acronyms that start with the letter C and may be encountered in medicine and radiology (please keep in alphabetic order).
A - B - C - D - E - F - G - H - I - J - K - L -M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z - misc
- C
- carbon
- cervical
- caesarean (C-section)
- celsius/centigrade
- cytosine (DNA nucleotide)
- coulomb (SI unit of charge)
- cysteine
- CA
- calcification
- cancer
- carcinoma
- Ca: calcium
- CA-125: cancer antigen 125
- CA 19-9: cancer antigen 19-9
- CAA: coronary artery aneurysm
- CABG: coronary artery bypass graft
- CAC: coronary artery calcification
- CAD
- computer-aided diagnosis
- coronary artery disease
- CADASIL: cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
- CAE: coronary artery ectasia
- CAG: coronary artery graft
- CAH: congenital adrenal hyperplasia
- CAIPIRINHA: controlled aliasing in parallel imaging results in higher acceleration (Siemens)
- CAP
- chest-abdomen-pelvis
- community-acquired pneumonia
- CAPD: continuous ambulatory peritoneal dialysis
- CARASIL: cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy
- CAS: carotid artery stenosis
- CASA: computer-assisted semen analysis
- CASH: chemotherapy-associated steatohepatitis
- CAT
- computed axial tomography or computer-aided tomography
- critically appraised topic
- CBAVD: congenital bilateral absence of vas deferens
- CBC: complete blood count
- CBD: common bile duct
- CBF: cerebral blood flow
- CBH: change in bowel habit
- CBV: cerebral blood volume
- CC
- caudocranial or caudocraniad
- craniocaudad or craniocaudad
- corpus callosum
- cubic centimetre (cm3 preferred)
- CCA: common carotid artery
- CCCT: clomiphene citrate (Clomid) challenge test
- CCD: charge-coupled device
- CCF
- CCL: corpus callosum lipoma
- CCST: certificate of completion of specialist training (UK)
- CCT: certificate of completion of training (UK)
- CCU
- critical care unit
- coronary care unit
- CD
- Crohn disease
- cystic duct
- common duct
- cluster of differentiation (e.g. CD4, CD8 etc)
- clinical director
- Cd: cadmium
- cd: candela (SI unit of luminance)
- CDC: centers for disease control and prevention (US federal agency)
- C.diff: Clostridium difficile
- CDS
- carotid duplex study
- clinical decision support
- CDT
- Clostridium difficile toxin
- catheter-directed therapy
- CE: contrast-enhanced
- Ce: cerium
- CEA
- CECT: contrast-enhanced computed tomography
- CEMR: contrast-enhanced magnetic resonance
- CEUS: contrast-enhanced ultrasound
- CF: cystic fibrosis
- CFA: common femoral artery
- CFDM: cystic fibrosis-related diabetes mellitus
- CFL: calcaneofibular ligament
- CFV: common femoral vein
- CHALICE: children’s head injury algorithm for prediction of clinically important event
- CHB: complete heart block
- CHD
- common hepatic duct
- coronary heart disease
- congenital heart disease
- chem: chemistry
- CHESS: chemical shift selective pulses (all vendors)
- CHF: congestive heart failure
- CHL
- CHO: carbohydrate
- CHOP: cyclophosphamide, doxorubicin (hydroxydaunomycin), Oncovin ® (vincristine), prednisolone
- Chol: cholesterol
- CI
- confidence interval
- contraindication
- compound imaging
- Ci: curie (non-SI unit of radioactivity)
- CIA: common iliac artery
- CIDP: chronic inflammatory demyelinating polyneuropathy
- CIN
- CIRSE: Cardiovascular and Interventional Radiology Society of Europe
- CIS: clinically isolated syndrome
- CISS: constructive interference in steady state (Siemens)
- CIV: common iliac vein
- CJD: Creutzfeld-Jakob disease
- CK: creatine kinase
- CKD: chronic kidney disease
- Cl: chlorine
- CLEAR: constant level appearance
- CLIPPERS: chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids
- cm: centimetre
- CMCJ: carpometacarpal joint
- CMF: chondromyxoid fibroma
- CMP: cardiomyopathy
- CNS: central nervous system
- CMT: Charcot Marie Tooth disease
- CMV: cytomegalovirus
- CN: cranial nerve
- CNLD: chronic neonatal lung disease
- CNR: contrast-to-noise ratio
- CO
- carbon monoxide
- cardiac output
- Co: cobalt
- C/O: complaining of
- COAD: chronic obstructive airways disease
- COCP: combined oral contraceptive pill
- COH: controlled ovarian hyperstimulation
- COLD: Cowden-Lhermitte-Duclos syndrome
- COM: chronic otomastoiditis
- COP:
- cryptogenic organising pneumonia
- combined oral contraceptive pill
- COPD: chronic obstructive pulmonary disease
- Cor: coronal
- CoR: college of radiographers (UK)
- COW: circle of Willis
- CP
- cerebral palsy
- cervical position
- chest pain
- cross-polarisation
- CPA
- cerebellopontine angle
- costophrenic angle
- CPAP: continuous positive airway pressure
- CPB: cardiopulmonary bypass
- CPC: choroid plexus cyst
- CPFE: combined pulmonary fibrosis and emphysema
- CPFI: chest pain for investigation
- CPK: creatine phosphokinase
- CPR: cardiopulmonary resuscitation
- CQC: care quality commission (UK)
- CR: complete response (see RECIST)
- Cr
- creatinine
- chromium
- CRAO: central retinal artery occlusion
- CRC: colorectal cancer or colorectal carcinoma
- CRE: carbapenem-resistant enterobacteriaceae
- Creat: creatinine
- CREST: calcinosis, Raynaud phenomenon, esophageal dysmotility, sclerodactyly, telangiectasia
- CRF
- chronic renal failure
- corticotropin-releasing factor
- CRIF: closed reduction internal fixation
- CRL: crown-rump length
- CRM: circumferential resection margin
- CRP: C-reactive protein
- CRPS: complex regional pain syndrome
- CRS: chronic rhinosinusitis
- CRTX: chemoradiotherapy
- CS
- caesarean section
- cavernous sinus
- coronary sinus
- chemical shift
- Cs: caesium
- C/S: caesarean section
- cSDH: chronic subdural haemorrhage
- CSF: cerebrospinal fluid
- CS-MRI: chemical shift MRI
- CSOM: chronic serous otitis media
- CSS: Churg-Strauss syndrome
- CT: computed tomography
- CTA: computed tomography angiogram
- CTAP: computed tomography abdomen pelvis
- CTB: computed tomography brain
- CTC: computed tomography colonoscopy
- CTCA: computed tomography coronary angiogram
- CTCAP: computed tomography chest abdomen pelvis
- CTED: chronic thromboembolic disease
- CTEPH: chronic thromboembolic pulmonary hypertension
- CTG: cardiotocography
- CTH: computed tomography head
- CTIVC: computed tomography intravenous cholangiogram
- CTIVP: computed tomography intravenous pyelogram
- CTPA: computed tomography pulmonary angiogram
- CTP: computed tomography perfusion
- CTR: cardiothoracic ratio
- CTS: carpal tunnel syndrome
- CTSI: CT severity index
- CTU: computed tomography urogram
- CTV: computed tomography venogram
- CTX: chemotherapy
- CTZ: chemosensitive trigger zone
- Cu: copper (Latin: cuprum)
- CUP: cancer of unknown primary (or carcinoma of unknown primary)
- CV: curriculum vitae
- CVA: cerebrovascular accident
- CVE: cerebrovascular event
- cVEMP: cervical vestibular-evoked myogenic potentials
- CVID: common variable immune deficiency
- CVL: central venous line
- CVP: central venous pressure
- CVS
- cardiovascular system
- chorionic villous sampling
- CW Doppler: continuous wave Doppler
- CWP: coal workers' pneumoconiosis
- Cx
- cervix
- circumflex artery
- complication
- CXR: chest x-ray
- CZ: central zone (prostate)
- +<li>CVID: <a title="Common variable immunodeficiency" href="/articles/common-variable-immunodeficiency">common variable immune deficiency</a>
- +</li>