Differential Diagnoses for Each Case
Case 1: Rt hand and Fingers pain with stiffness in the morning
- Single most likely diagnosis: Rheumatoid Arthritis (RA) - Morning stiffness and pain in the hands and fingers are common symptoms of RA.
- Other Likely diagnoses:
- Osteoarthritis (OA) - Although OA is more common, the morning stiffness and elbow rash make RA more likely.
- Psoriatic Arthritis (PsA) - The elbow rash could be psoriatic, suggesting PsA.
- Do Not Miss:
- Septic Arthritis - Although less likely, septic arthritis is a medical emergency that requires prompt treatment.
- Rare diagnoses:
- Scleroderma - A rare autoimmune disease that can cause hand and finger pain.
Case 2: Young male with behavioural changes and hallucinations
- Single most likely diagnosis: Schizophrenia - The presence of auditory hallucinations, thought insertion, and persecutory delusions are characteristic of schizophrenia.
- Other Likely diagnoses:
- Bipolar Disorder with Psychotic Features - Although less likely, bipolar disorder can present with psychotic symptoms.
- Substance-Induced Psychosis - The patient's symptoms could be caused by substance use.
- Do Not Miss:
- Neurosyphilis - A rare but serious condition that can cause psychiatric symptoms.
- Rare diagnoses:
- Temporal Lobe Epilepsy - A rare condition that can cause hallucinations and other psychiatric symptoms.
Case 3: H/o fall, left side u/L and lower limb weakness
- Single most likely diagnosis: Stroke - The patient's symptoms, including weakness and upgoing plantar reflex, suggest a stroke.
- Other Likely diagnoses:
- Spinal Cord Injury - The patient's history of fall and weakness suggest a possible spinal cord injury.
- Multiple Sclerosis (MS) - Although less likely, MS can cause weakness and neurological symptoms.
- Do Not Miss:
- Spinal Epidural Hematoma - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Amyotrophic Lateral Sclerosis (ALS) - A rare neurodegenerative disease that can cause weakness.
Case 4: Father with b/l Red eyes
- Single most likely diagnosis: Viral Conjunctivitis - The patient's symptoms, including red eyes and a history of similar symptoms in his child, suggest viral conjunctivitis.
- Other Likely diagnoses:
- Bacterial Conjunctivitis - Although less likely, bacterial conjunctivitis is a possible diagnosis.
- Allergic Conjunctivitis - The patient's symptoms could be caused by an allergic reaction.
- Do Not Miss:
- Gonococcal Conjunctivitis - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Sjögren's Syndrome - A rare autoimmune disease that can cause conjunctivitis.
Case 5: Rectal bleeding
- Single most likely diagnosis: Hemorrhoids - The patient's symptoms, including rectal bleeding, suggest hemorrhoids.
- Other Likely diagnoses:
- Diverticulitis - Although less likely, diverticulitis can cause rectal bleeding.
- Inflammatory Bowel Disease (IBD) - The patient's symptoms could be caused by IBD.
- Do Not Miss:
- Colorectal Cancer - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Angiodysplasia - A rare condition that can cause rectal bleeding.
Case 6: Lady trying to be pregnant
- Single most likely diagnosis: Infrequent Intercourse - The patient's symptoms, including infrequent intercourse, suggest that this is the most likely cause of her infertility.
- Other Likely diagnoses:
- Polycystic Ovary Syndrome (PCOS) - Although less likely, PCOS is a common cause of infertility.
- Male Factor Infertility - The patient's husband's fertility could be a contributing factor.
- Do Not Miss:
- Tubal Damage - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Endometriosis - A rare condition that can cause infertility.
Case 7: 36wk pregnant lady with abdominal pain
- Single most likely diagnosis: Pre-eclampsia - The patient's symptoms, including abdominal pain and hypertension, suggest pre-eclampsia.
- Other Likely diagnoses:
- Placental Abruption - Although less likely, placental abruption can cause abdominal pain.
- Urinary Tract Infection (UTI) - The patient's symptoms could be caused by a UTI.
- Do Not Miss:
- Eclampsia - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Hepatitis - A rare condition that can cause abdominal pain during pregnancy.
Case 8: Guy with sleep issues
- Single most likely diagnosis: Sleep Disorder - The patient's symptoms, including excessive sleepiness, suggest a sleep disorder.
- Other Likely diagnoses:
- Depression - Although less likely, depression can cause sleep disturbances.
- Anxiety - The patient's symptoms could be caused by anxiety.
- Do Not Miss:
- Sleep Apnea - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Narcolepsy - A rare condition that can cause excessive sleepiness.
Case 9: Lady with dysthymia and major depression
- Single most likely diagnosis: Depression - The patient's symptoms, including feelings of loneliness and unhappiness, suggest depression.
- Other Likely diagnoses:
- Anxiety - Although less likely, anxiety can contribute to the patient's symptoms.
- Somatization Disorder - The patient's symptoms could be caused by a somatization disorder.
- Do Not Miss:
- Bipolar Disorder - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Borderline Personality Disorder - A rare condition that can cause emotional dysregulation.
Case 10: Thin elderly female with a bruise on center of her chest
- Single most likely diagnosis: Rib Fracture - The patient's symptoms, including a bruise on the chest and rib fractures, suggest a rib fracture.
- Other Likely diagnoses:
- Pulmonary Contusion - Although less likely, a pulmonary contusion can cause chest pain.
- Cardiac Contusion - The patient's symptoms could be caused by a cardiac contusion.
- Do Not Miss:
- Aortic Dissection - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Pneumothorax - A rare condition that can cause chest pain.
Case 11: Pt with high bp
- Single most likely diagnosis: Hypertension - The patient's symptoms, including high blood pressure, suggest hypertension.
- Other Likely diagnoses:
- White Coat Hypertension - Although less likely, white coat hypertension can cause elevated blood pressure readings.
- Secondary Hypertension - The patient's symptoms could be caused by an underlying condition.
- Do Not Miss:
- Pheochromocytoma - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Hyperaldosteronism - A rare condition that can cause hypertension.
Case 12: NEONATE PE
- Single most likely diagnosis: Normal Newborn - The patient's symptoms, including a normal physical exam, suggest a normal newborn.
- Other Likely diagnoses:
- Congenital Heart Disease - Although less likely, congenital heart disease can cause symptoms in a newborn.
- Respiratory Distress Syndrome - The patient's symptoms could be caused by respiratory distress syndrome.
- Do Not Miss:
- Infection - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Genetic Disorder - A rare condition that can cause symptoms in a newborn.
Case 13: THYROID PE- Goitre
- Single most likely diagnosis: Goiter - The patient's symptoms, including a goiter, suggest a goiter.
- Other Likely diagnoses:
- Hypothyroidism - Although less likely, hypothyroidism can cause a goiter.
- Hyperthyroidism - The patient's symptoms could be caused by hyperthyroidism.
- Do Not Miss:
- Thyroid Cancer - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Thyroiditis - A rare condition that can cause a goiter.
Case 14: 3 month old Cough
- Single most likely diagnosis: Viral Infection - The patient's symptoms, including a cough and apneic episodes, suggest a viral infection.
- Other Likely diagnoses:
- Respiratory Syncytial Virus (RSV) - Although less likely, RSV can cause symptoms in a 3-month-old.
- Pertussis - The patient's symptoms could be caused by pertussis.
- Do Not Miss:
- Pneumonia - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Congenital Heart Disease - A rare condition that can cause symptoms in a 3-month-old.
Case 15: 9 month old with yellowish Vomit
- Single most likely diagnosis: Pyloric Stenosis - The patient's symptoms, including yellowish vomit and a mass in the right epigastric region, suggest pyloric stenosis.
- Other Likely diagnoses:
- Gastroesophageal Reflux Disease (GERD) - Although less likely, GERD can cause symptoms in a 9-month-old.
- Intussusception - The patient's symptoms could be caused by intussusception.
- Do Not Miss:
- Volvulus - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Congenital Diaphragmatic Hernia - A rare condition that can cause symptoms in a 9-month-old.
Case 16: Smoker with chest pain
- Single most likely diagnosis: Coronary Artery Disease - The patient's symptoms, including chest pain and a history of smoking, suggest coronary artery disease.
- Other Likely diagnoses:
- Pulmonary Embolism - Although less likely, pulmonary embolism can cause chest pain.
- Pneumonia - The patient's symptoms could be caused by pneumonia.
- Do Not Miss:
- Aortic Dissection - A rare but serious condition that requires prompt treatment.
- Rare diagnoses:
- Lung Cancer - A rare condition that can cause chest pain in a smoker.