MOST COMMON Cause, Type, Symptom Of Any Disease

▪MC cause of Hypoxia: *Ischemia*

▪MC cause of Inflammation: *Infection*

▪MC cause of Cell injury: *Hypoxia*

▪MC cause of Impaired Wound Healing: *Infection

▪MC cause of Acute Cor Pulmonale Pulmonary: *Embolism*

▪MC cause of Chronic Cor Pulmonale: *COPD*

▪MC cause of Superior Vena Cava Syndrome: *Small Cell Carcinoma of Lung Compression*

▪MC cause of Infection in Cystic fibrosis in Children: *Staphylococcus aureus*

▪MC cause of Infection in Cystic Fibrosis in adolescents and adults: *Pseudomonas aeruginosa *

▪MC cause of Seizure in Newborn: *Hypoxia-induced Ischemic Encephalopathy*

▪MC cause of Epiglottitis in Children: *Hemophilus influenza b*

▪MC Lesion of Diabetic Retinopathy: *Diffuse Glomerulosclerosis*

▪MC Lesion in Asbestosis: *Benign Pleural Plaques*

▪MC Benign Lesion of Liver: *Cavernous Hemangioma*

▪MC Intracranial Lesion after Head Injury: *Subdural Hemorrhage*

▪MC cranial Nerve involved in Glomus tumor: *Facial Nerve*

▪MC Nerve palsy in Diabetic Retinopathy: *Oculomotor*

▪MC Nerve for Peripheral stimulation (Supramaximal Stimulation): *Ulnar Nerve (Volar side of Wrist)*

▪MC Nerve involved in Leprosy: *1st Posterior Tibial Nerve 2nd Ulnar Nerve*

▪MC Nerve leading to Abscess: *Ulnar Nerve*

▪MC Nerve injured in anterior dislocation of shoulder: *Circumflex branch of axillary nerve*

▪MC Nerve injured in Fracture neck of Numerus: *Axillary nerve*

▪MC Nerve injured in Lunate Dislocation: *Median Nerve*

▪MC Nerve injured in Fracture medial epicondyle of Numerus: *Ulnar nerve*

▪MC Nerve injured in Supracondylar fracture of Numerus: *

1st Anterior Interosseous Nerve 2nd Median Nerve 3rd Radial Nerve*

▪MC Nerve injured in Forearm fractures especially Monteggia fracture:

*Posterior interosseous Nerve*

▪MC Nerve involved in Perilunate dislocation: *Median Nerve*

▪MC Nerve injured in Posterior Dislocation of Hip: *Sciatic nerve

▪MC Nerve injured in McBurney’s Incision: *Iliohypogastric Nerve*

▪MC Nerve involved in Thoracic outlet Syndrome: *Ulnar Nerve*

▪MC Nerve affected by Plexiform Neurofibroma: *Trigeminal Nerve*

▪MC Nerve injury in Postpartum Female: *Common Peroneal Nerve*

▪MC Route of Lead Intoxication: *Inhalation*

▪MC Occupational Cancer: *Skin(Squamous cell carcinoma)*

▪MC Mental Disorder causing death: *Alzheimer’s and Other Dementia*

▪MC Infection of Streptococcus pneumonia:  *Otitis Media*

▪MC Gram Positive organism causing meningitis: *Streptococcus pneumonia*

▪MC Gram Negative organism causing meningitis: *Neisseria meningitides*

▪MC Source of Meningococcal meningitides: *Carrier*

▪MC Legionella causing Human disease: *Legionella Pneumophilia*

▪MC Diagnostic test in Lymphogranulorum venerum:  *Cell Culture*

▪MC Infection Complicating Organ Transplantation: *CMV*

▪MC Genital Lesion in HIV patient: *Herpes*

▪MC organ affected in Amoebic Colitis: *Caecum*

▪MC organ affected in Visceral Leishmaniasis: *Spleen*

▪MC Diagnostic specimen for Visceral Leishmaniasis: *Spleen*

▪MC Parasitic Infection of CNS: *Cysticercosis*

▪MC Congenital Lesion complicated by Infective Endocarditis: *VSD*

▪MC association of Right sided aortic arch: *Tetrology of Fallot*

▪MC condition associated with Coarctation of Aorta:  *Bicuspid Aortic Valve*

▪MC Rheumatic Valvular Disease: *Mitral Regurgitation*

▪MC Renal Vein Thrombosis seen in: *Membranous Glomerulonephritis*

▪MC Ectopic Ureter associated with: *Dysuria*

▪MC Symptomatic CNS infection in: *Neonates Rubella, HSV*

▪MC Virus causing Diarrhoea in Infants: *Rota Virus*

▪MC Biochemical abnormality in Congenital Hypertrophic Pyloric Stenosis:

*Hypokalemic Hypochloremic Metabolic alkalosis with Paradoxical aciduria*

▪MC Carcinoma of Breast: *Intraductal Carcinoma*

▪MC cells damaged during Hypoxia: *Neurons*

▪MC Thyroid carcinoma: *Papillary*

▪MC Thyroid carcinoma after radiation Papillary

MC etilogical agent for Lung Abscess: *Anaerobic bacteria*

▪MC Chronic Occupational disease in world: *Silicosis*

▪MC Renal Stones: *Calcium Oxalate*

▪MC CNS Herniation: *Transtentorial Herniation*

▪MC Demyelinating Disease: *Multiple Sclerosis*

▪MC mutated gene in Human cancer: *P53*

▪MC mutation in Hereditary Spherocytosis: *Ankyrin*

▪MC mutation in Hereditary Elliptocytosis: *Spectrin*

▪MC Congenitally absent muscle in Humans: *Pectoralis Major*

▪MC weakened muscle in Osteoarthritis: *Quadriceps*

▪MC fractured bone in carpus: *Scaphoid*

▪MC Injured organ in Blunt injury abdomen: *Spleen*

▪MC Hereditary blood coagulation disorder: *Factor V Leiden*

▪MC virus associated with Transfusion Hepatitis: *HCV*

▪MC Source of Hemorrhage in Duodenal Ulcer (Arterial): *Gastroduodenal Artery*

▪MC Lobe involved in Carcinoma Prostate: *Posterior Lobe*

▪MC Zone involved in Carcinoma Prostate: *Peripheral Zone*

▪MC Node involved in Ca Prostate Metastasis: *Obturator Node*

▪MC Congenital Deformity of Urethra: *Hypospadiasis*

▪MC Cancer in Burn Scar: *Squamous Cell Carcinoma*

▪MC Origin of Melanoma: *Junctional Melanocytes*

▪MC Clinical Pattern of Basal cell carcinoma: *Nodular*

▪MC Infection in Dry Wound in Burns: *Pseudomonas*

▪MC side of Unilateral Cleft Lip: *Left*

▪MC Salivary Gland to get Stones: *Submandibular Gland*

▪MC Type of Inflammation: *Catarrhal

▪ MC Type of Hemoglobinopathy in World: *Thalassemia*

▪MC Type of mutation causing β-Thalassemia: *Splicing mutation*

▪MC type of AML: *M2*

▪MC type of AML in Down’s Syndrome: *M7*

▪MC Type of Ca Penis: *Squamous Cell Carcinoma*

▪MC Type of Malignant Melanoma: *Superficial Spreading Type*

▪MC cause of Acute Adrenocortical Insufficiency: *Abrupt withdrawal of Corticosteroids*

▪MC cause of SIADH: *Ectopic ADH by Small Cell Cancer*

▪MC cause of Hyperaldosteronism:

*Conn’s Syndrome (Adrenocortical Adenoma-Left sided MC)*

▪MC cause of Thyrotoxicosis: *Grave’s Disease*

▪MC cause of Hypothyroidism in Iodine Sufficient areas of the world:

*Autoimmune Hypothyroidism (Hashimoto’s Thyroiditis)*

▪MC cause of Primary Hyperparathyroidism: *Parathyroid Adenoma*

▪MC cause of Secondary Hyperparathyroidism: *Renal Failure*

▪MC cause of Hypoparathyroidism: *Surgical Removal of Parathyroid Gland*

▪MC cause of Panhypopituitarism: *Pituitary adenoma*

▪MC cause of Cushing’s Syndrome: *Administration of Exogenous Corticosteroids*

▪MC cause of Congenital Adrenal Hyperplasia: *21α Hydroxylase Deficiency*

▪MC cause of Right Heart Failure: *Left Heart Failure*

▪MC cause of Ascending Aorta Aneurysm: *Hypertension*

▪MC cause of Secondary Raynaud Phenomenon: *Systemic Sclerosis

▪MC cause of Acute bacterial Endocarditis: *Staphylococcus aureus*

▪MC cause of Subacute Endocarditis: *α Hemolytic Streptococci(Viridans)*

▪MC cause of Prosthetic Valve Endocarditis: *Staphylococcus  epidermidis (Coagulase negative*

▪MC cause of endocarditis in IV drug users: *Staphylococcus aureus*

▪MC cause of Bleeding during Tonsillectomy: *Paratonsillar Vein*

▪MC cause of arterial bleeding during Tonsillectomy: *Tonsillar Branch of Facial Artery*

▪MC cause of Left Recurrent Laryngeal Nerve Palsy: *Ca Bronchus*

▪MC cause of Right Recurrent Laryngeal Nerve Palsy: *Thyroid Surgery*

▪MC bacterial cause of Pustule: *Streptococcus pyogenes*

▪MC cause of Cellulitis: *Streptococcus pyogenes*

▪MC cause of Lobar Pneumonia: *Streptococcus pneumoniae*

▪MC cause of Bronchopneumonia: *Staphylococcus aureus*

▪MC cause of Otitis Media: *Streptococcus pneumonia*

▪MC cause of Septicemia in A splenic patient: *Streptococcus pneumonia*

▪MC cause of gas gangrene: *Clostridium perfringens(A type)*

▪MC cause of actinomycosis: *Actinomyces Israeli*

▪MC cause of mycetoma: *Fungi*

▪MC cause of UTI: *E.coli*

▪MC cause of Catheter associated UTI: *E.coli*

▪MC cause of Intraabdominal Abscess: *E.coli*

▪MC cause of Acute Bacterial Peritonitis: *1st E.coli 2nd Klebsiella*

▪MC cause of Salmonella gastroenteritis: *Salmonella Typhimurium*

▪MC bacterial cause of Traveller’s Diarrhoea: *ETEC*

▪MC viral cause of Traveller’s Diarrhoea: *Rotavirus*

▪MC parasitic cause of Traveller’s Diarrhoea: *Giardia*

▪MC cause of Pyrexia of Unknown Origin: *Mycobacterium tuberculosis*

▪MC cause of Bloodstained nipple discharge: *Intraductal Papilloma*

▪MC cause of Adenomatoid cancer: *Follicular Carcinoma*

▪MC cause of Thyroiditis: *Hashimoto’s Thyroiditis*

▪MC cause of Esophagitis: *Esophageal Reflux*

▪MC cause of Esophageal Perforation: *Instrumentation*

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