Preauricular sinus
A preauricular sinus is an epithelial tract that is positioned anterior to the crus of the helix above the tragus.
Dr Jeffrey Kalei
Author and illustrator for Hyperexcision. Interested in emergency room medicine. I have a passion for medical education and drawing.
Malignant Otitis Externa
Malignant otitis externa is an invasive bacterial infection of the external ear. It occurs in diabetic patients and other immunocompromised patients, typically following ear trauma. The mortality rate, even with the best care, is nearly 10%.
Otitis Externa
External otitis is an infection of the external auditory canal and pinna. It is commonly referred to as ‘swimmers’ ear’. It peaks between 40 and 50 years and affects men and women equally. Variations of otitis externa Variation Description Acute…
Cerumen Impaction
Cerumen (ear wax) is a normal substance that protects the ear canal. Cerumen impaction is common. It peaks between 50 and 60 years and affects men and women equally.
External Ear Diseases
Paediatrics Mock Exam 1
TOTW #78 – Immunology
Long QT Syndrome (LQTS)
Long QT syndrome is an inherited condition that is characterised by delayed repolarization of the ventricles, which increases the risk of ventricular tachyarrhythmias, leading to syncope, cardiac arrest, or sudden death. It can be diagnosed incidentally on an EKG, following…
Sick Sinus Syndrome (Sinus node Dysfunction)
Sick sinus syndrome is characterized by abnormal sinus node functioning with resultant bradycardia and cardiac insufficiency. It can be caused by many factors, both intrinsic and extrinsic Causes of sick sinus syndrome Classification Causes Intrinsic Idiopathic degenerative fibrosis (most common),…
Atrial Fibrillation
Atrial Fibrillation Atrial fibrillation is a chaotic irregular atrial rhythm, with an atrial electrical activity of about 300 – 600 bpm, resulting in an irregularly irregular ventricular rate. It peaks at 70+ years, and affects men slightly more than women.…