History: In 1972, Sir Godfrey Hounsfield developed CT scan for which he was awarded Nobel prize in 1979. Through these years CT has come from one rotation in 6 minutes to one in 0.33 seconds. Principle: X rays are produced by CT machine, which are absorbed by different tissues in…
Category: PGMEE, MRCS, USMLE, MBBS, MD/MS
Medical knowledge in bullet points with understandable language, simplified images and graspable mnemonics.
PGMEE, MRCS, USMLE, MBBS, MD/MS
Enchondroma vs Chondrosarcoma (low grade) : Mnemonic
Among cartilaginous tumors, 2 pathologies can be misleading when trying to reach a correct diagnosis: enchondroma (E), a benign tumor, and low-grade chondrosarcoma (LGC), which is a low-aggressivity malignancy. This can be a problem when deciding treatment because E only requires regular follow-up, but LGC needs surgical treatment. Mnemonic: ABCDE…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Gastrointestinal Stromal Tumor (GIST) : A Comprehensive Review
Introduction: Other facts: Clinical features: Diagnosis: Role of biopsy/tissue diagnosis in GIST (current consensus): Treatment: High risk features: Choices of surgery: Aim of surgery: Prognostication: Malignant potential Comments Mortality Benign Size: up to 2 cmMitosis: up to 5/50 hpf No tumor related mortality Probably benign Size: 2-5 cmMitosis: same as…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Joint Lubrication Made Easy
Boundary lubrication A monolayer of lubricant molecule (lubricin) adsorbed on each surface (boundary) of the joint prevents direct cartilage to cartilage (articular) contact Fluid-film lubrication Cartilage surfaces are separated by a fluid film 1. Hydrodynamic lubrication: 2. Squeeze film lubrication: 2. Elastohydrodynamic lubrication: Combination of hydrodynamic and squeeze film Mixed…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Protected: MRCS Part A, September 2023 – Recalls
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PGMEE, MRCS, USMLE, MBBS, MD/MS
Surgical Anatomy of Diaphragm
Diaphragm is a thoracoabdominal organ which is musculotendinous. It is the primary muscle of respiration. Extension: There are 2 crura of diaphragm: 3 ligaments: Quadratus lumborum muscle is related to lateral arcuate whereas psoas muscle is related to medial arcuate ligament. The foramen of Morgagni shown in the above picture…
PGMEE, MRCS, USMLE, MBBS, MD/MS
SIADH Causes and Diagnosis : Mnemonics
Causes of SIADH Mnemonic: SIADH Diagnosis and Diagnostic Criteria Mnemonic: SOD-IUN TEA
PGMEE, MRCS, USMLE, MBBS, MD/MS
Basics of voiding cystourethrogram (VCUG)
The above picture shows a VCUG scan which is a commonly performed test in urology for diagnosing various conditions related to urethra, bladder as well as assessing upper tracts. Diseases that can be diagnosed using VCUG includes: So, it is always better to have an idea about interpreting the scan as…