Radiology is a completely image-based subject. According to recent official subject-wise marks distribution, Radiology forms a part of General Surgery which altogether constitutes 45 marks. You’ll find approximately 7-8 questions from Radiology in the coming exam.

With a view to make your preparations more effective, we approached the famous faculty of Radiology, Dr. Khaleel Ahmed to guide you with the important topics from the NEET-PG perspective.

Dr. Khaleel Ahmed has himself prepared the list of important topics which must be thoroughly prepared & revised before the exam.

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Important Topics in Radiology



Imaging Of All Emergencies

Pneumothorax, Tension Pneumothorax, Pneumomediastinum, Pneumoperitoneum, Pneumocephalus, Aortic Dissection, Aortic Aneurysms and Rupture,pseudoaneurysms-Yin yang sign, and Pulmonary Thromboembolism

Stroke Imaging-Acute Infarct, Hyperdense MCA sign, DWI,

Head Trauma-Epidural hematoma, swirl sign, subdural hematoma, subarachnoid hemorrhage, intraparenchymal and intraventricular bleed

Abdominal Trauma-FAST, CECT liver lacerations, Spleenic injury

Acute Abdomen-Acute Pancreatitis, small and large Intestinal obstruction and Volvulus


  • Concept of KVP,MAS
  • Important Xray views like Waters View, Caldwell View,Rhese View, Strykers View, Schuller View, Lordotic and reverse lordotic view
  • Compton Effect,Photoelectric effect,Bremstrahlung Radiation
  • Mammography Technique,differences from conventional radiography
  • Hysterosalpinography images-Normal,unicornuate,bicornuate,didelphys, hydrosalpinx
  • Important IVP images like Ureterocele, Drooping Lily sign, Retrocaval Ureter

CT scan

  • CT anatomy of brain, mediastinum, lungs, and abdomen
  • Coronary calcium scoring(Agatston scoring)
  • Ct Angiography-Pulmonary thromboembolism
  • Radiation protection-lead apron, TLD batch


  • Indications/contraindications
  • MR spectroscopy
  • axial, coronal.saggital MRI images of the brain 


  • piezoelectric effect
  • Posterior acoustic shadowing and enhancement
  • FAST and EFAST
  • USG Elastography- Fibroscan
  • EUS
  • Color Doppler, Spectral Doppler
  • umbilical artery, uterine artery and fetal Mca Doppler



  • Linac
  • stereotactic radiotherapy-cyber knife, gamma knife
  • IMRT
  • Craniospinal irradiation
  • electron beam
  • proton beam-Bragg Peak

(ii) Brachytherapy

  • permanent and temporary implants
  • pure beta emitters

(iii) Systemic Radiotherapy--I-131, strontium -89, P-32

(iv)Law of Bergonie and Tribondeau

(v)Radiosensitivity of tissues and tumors

(vi)Different Iodine Isotopes-I131,I125,I124,I123

(vii)HALF LIFES Of important radioisotopes-18F,Tc99m,Iodine isotopes,P-32,CO-60,CS-137

Nuclear Medicine

  • Meckel's Diverticulum
  • Thyroid Scintigraphy, Lingual Thyroid
  • Myocardial Perfusion Imaging
  • Myocardial Infarct Imaging
  • Bone Scan
  • Sulfur Colloid Scan 
  • Tc99m-Sestamibi Scan 
  • Octreotide/somatostatin receptor scintigraphy
  • PET scan-Warburg effect,18FDG PET
  • Pet Imaging of Heart


  • Imaging of Meningioma
  • Medulloblastoma Vs Ependymoma
  • Craniopharyngioma Vs Pituitary Adenoma
  • Arachnoid Cyst Vs Epidermoid Cyst 
  • Important Named Signs-Mount Fuji Sign, Humming Bird Sign, Racing Car Sign, PANDA Sign,
  • TB Meningitis, CJD 
  • Imaging Stroke -Hyperdense MCA sign, Penumbra, CT -perfusion Imaging,
  • Intracranial bleed-Extradural, Subdural, Subarachnoid, Intraparenchymal, Intraventricular Bleeds

Respiratory Radiology

  • Normal CXR 
  • Collapse,consolidation,pleural effusion,Pneumothorax
  • Golden S sign, Luftsichel Sign, Silhouette Sign,
  • Xrays of sarcoidosis, pulmonary edema, pulmonary thromboembolism
  • CT images of Bronchiectasis, ILD, pulmonary alveolar proteinosis
  • Aspergillosis-ABPA, Air-Crescent Sign,Halo Sign
  • Hydatid of Lung/Lung Abscesses/Fungus Ball/Hydropneumothorax
  • Lucent Hemithorax/FOREIGN BODY


For complete Radiology & detailed video discussion on the above-mentioned topics, download Radiology by Dr. Khaleel Ahmed:

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