NEET PG 2025: Important Topics For Radiology

When it comes to NEET PG preparations, all 19 subjects are equally important. As per the latest exam pattern, there is negative marking for every incorrect question. 

So, to improve your chances of scoring better and bagging a good rank, you must cover all subjects thoroughly. But then, the extensiveness of the syllabus and the shortage of time make this an arduous task. 

But don’t worry. PrepLadder has the perfect solution!

As you get closer to the exam date, make the most of your available time by studying the high-yield topics for all the subjects. Today, we will be discussing all the high-yield topics for Radiology. 

Stay tuned to our blog and YouTube channel to get the most updated list of important must-read topics on every subject.

Moving forward, keep the PrepLadder app handy to stay on top of your NEET PG 2025 preparations. 

Let’s dive in!

High-Yield Topics for Radiology 

Radiology is a part of General Surgery, and according to the latest exam pattern, 45 questions will be asked from Radiology, Orthopedics, and Anesthesia together. You can expect around 7-8 questions from Radiology along with several integrated questions from different subjects.  

Basics of X ray/ Fluoroscopy/ Mammography 

• Types of radiation 
• Types of investigation 
• X ray vs gamma rays 
• Types of radiography 
• Fluroscopy 

Basics of CT 

• CT principle 
• CT vs X ray 
• CT vs MRI 
• Axial CT
• Spiral CT 
• HRCT (high resolution computed tomography)

Basics of USG 

• Advantages and disadvantages of USG 
• Modes of ultrasound
• Doppler effect 
• Spectral doppler 
• Duplex doppler 
• Black and white principle of ultrasound

Angiography 

• CT angiography 
• MR angiography 
• DSA - Fluoroscopy 

Basics of MRI 

• MRI principle 
• T1 vs T2 MRI 
• Diffusion weighted images 
• Gradient ECHO sequences & SWI 
• Advances in the MRI sequence 

Interventional Radiology 

• Vascular Intervention Radiology 
• Seldinger technique 
• Puncture technique 
• Embolic Agents

Radiation units/ radiation protection/ radiation hazards and dose limits  

• Dose limitation 
• Radiation protection 
• Radiation hazards 
• Radiation effects 
• Acute radiation syndrome 

Contrast Media 

• Iodinated contrast media 
• Gadolinium contrast 
• Contrast enhanced ultrasound 
• Barium contrast 
• Negative contrast media 

Respiratory radiology 

• Modalities for the imaging of the chest 
• Normal anatomy in chest x ray 
• Whiteout hemithorax 
• Blackout hemithorax
• Pnemothorax 
• Pleural effusion 
• Pneumomediastinum 
• Bronchiactasis 
• Coin in trachea Vs esophagus 
• Localization of pathologies 
• Bulging fissure sign 
• Air fluid level 
• Intestinal lung disease 
• Sarcoidosis 
• Asbestosis 
• Lung cancer 

Cardiovascular radiology 

• Kartagener’s syndrome 
• Identifying heart chamber and vessels 
• Heart appearances 
• Pericardial effusion 
• Mitral stenosis left arterial enlargement 
• Congestive heart failure
• Pathology in the heart 
• Micky mouse sign 

Neuroradiology 

• Anatomy on the angiography 
• MR angiography 
• CNS trauma and various type of hemorrhage
• Types and identification of hemorrhage 
• Diffuse axonal injury  
• Tension pneumocephalus 
• Appearance of hemorrhage on MRI based on its duration 
• Stroke
• Dural venous sinus  thrombosis
• Raised ICT 
• Cognitive CMV 
• Headache with meningeal irritation 
• Parkinson, Parkinson plus dementia 
• Demyelinating lesions
• Leukodystrophy 
• Vascular malformations 
• Neurocutaneous syndrome/ Phakometosis 
• Brain tumors 
• Congenital malformations 

Head and neck radiology 

• PNS & orbit x ray views 
• CT PNS 
• PNS pathologies 
• Trauma 
• Pott’s puffy tumors 
• Temporal bone 
• CSOM and its complications 
• Carotid body =tumor 
• Vestibular Schwannoma
• Ranula 
• Sialolitiasis 
• Coin in trachea 
• Orbit 

Gastrointestinal Radiology 

• Pneumoperitoneum
• Esophageal disorders 
• Hiatal hernia
• Congenital diaphragmatic hernia  
• Pyloric stenosis 
• Bubble signs 
• Gastric ulcer 
• Bowel obstruction
• Intussusception 
• Sigmoid valvulus 
• ILEO - CECAL TB 
• Colitis 
• Diverticulosis 
• IBD 
• Hirschsprung disease 
• Acute appendicitis 

Hepatobiliary and Pancreatic Radiology 

• Triple phase liver CT 
• T Tube cholangiogram 
• PTC 
• Pathologies of liver 
• Pathologies of gallbladder
• Pathologies of bile duct 
• Pathologies of pancreas 
• RENAL HALO sign

Genitourinary radiology 

• IVP 
• RGP 
• MCU 
• RGU
• Computed topography IUP/IVP
• MRI urography 
• Congenital anomalies of the kidney 
• Urolithiasis 
• Other classification seen in kidney 
• Pyelonephritis 
• TB of the urinary tract 
• Ureter appearance 
• Bladder appearance 
• Urethral pathology 
• Renal mass 
• Renal cystic lesions 
• Renal papillary necrosis 
• Renal vascular pathology 
• Adrenal lesions 

OBG imaging 

• Hysterosalpingography 
• Early pregnancy ultrasound
• Biometry 
• Ectopic pregnancy 
• Twin pregnancy 
• Molar pregnancy 
• Nuchal translucency 
• Nuchal fold thickness 
• Anomaly scan 
• Obstetric doppler 
• PCOS vs OHSS 
• Uterine anomalies
• Ovarina mass 

Breast imaging and testicular imaging

• Mammography 
• Breast ultrasound 
• Testicular imaging 

Musculoskeletal radiology 

• Metabolic and endocrine pathologies
• Skull appearances
• Congenital abnormalities
• Vertebral appearances 
• Upper limb fracture 
• Bone tumors 
• Ankylosing spondylitis 
• Arthropathy 
• Avascular necrosis 

Nuclear medicine 

• Modalities used in nuclear medicine 
• Renal scan 
• Bone scan
• TC 99 Pertechnetate scan 
• Cardiac scans 
• Hida scan
• Sulphur colloid scan 
• MIBG, DOPA PET 
• PRT scan 

Radiotherapy 

• Agents used for radiotherapy 
• Half life of radioisotopes 
• Craniospinal irradiation

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