← Dashboard
Image credits
Clinical images are from Wikimedia Commons and used under their free licences. Thank you to the authors.
12-lead ECG showing an irregularly irregular narrow-complex rhythm without P waves
12-lead ECG with a regular broad-complex tachycardia
12-lead ECG with a short PR interval and slurred upstroke to the QRS (delta waves)
12-lead ECG with ST elevation in leads II, III and aVF
12-lead ECG with ST elevation in the anterior chest leads
A large, broad hand next to a normal-sized hand
Abdominal ultrasound of a bowel loop with concentric rings (target sign)
Abdominal X-ray with a grossly dilated colon
Annular scaly patch with an active edge and central clearing on the arm
AP shoulder X-ray with the humeral head displaced from the glenoid
Asymmetric, irregularly bordered, variably pigmented skin lesion
Axial CT of the chest with dilated, thick-walled bronchi
Bilateral proptosis and upper lid retraction
Blast cell with a rod-shaped cytoplasmic inclusion
Blood film with sickle-shaped red cells
Blood film with small, dense red cells lacking central pallor
Bony swellings at the distal interphalangeal joints
Bright red patch on the white of the eye
Central facial erythema with papules
Central red arteriole with radiating fine vessels
Cervix with a red area around the os
Chalky subcutaneous nodules over the joints
Chest X-ray with a large left-sided area devoid of lung markings and a visible lung edge
Chest X-ray with bilateral perihilar interstitial and alveolar shadowing
Chest X-ray with right middle lobe consolidation
Chest X-ray with upper zone shadowing
Child with bright red cheeks
Child with widespread vesicles and crusts at different stages
Close-up of a pearly nodule with rolled edges and surface telangiectasia
Cloudy lens behind the pupil
Contrast CT of the chest showing an intimal flap in the aorta
Crusted vesicles on the forehead and scalp with swelling around one eye
CT head with a biconvex (lens-shaped) hyperdense collection
CT head with a crescent-shaped extra-axial collection
CT head with hyperdense blood in the basal cisterns
CT showing enlarged kidneys replaced by multiple cysts
Diffusely red eye with discharge
ECG rhythm strip showing P waves and QRS complexes occurring independently
ECG with broad QRS complexes and broad notched R waves in the lateral leads
ECG with coved ST elevation and T-wave inversion in V1–V2
ECG with progressively lengthening PR interval then a dropped beat
ECG with regular sawtooth flutter waves
ECG with tall peaked T waves
ECG with widespread concave ST elevation and ST depression in aVR
Enlarged tonsils with white exudate
Erect abdominal X-ray with dilated small bowel loops and air-fluid levels
Expanding erythematous ‘bull's-eye’ rash at the site of a tick bite
Fingers with loss of the nail-fold angle and bulbous fingertips
Fundus photograph with a pale oedematous retina and a cherry-red spot at the macula
Fundus photograph with a swollen optic disc and blurred margins
Fundus photograph with new vessel formation
Gallbladder ultrasound with echogenic stones casting acoustic shadows
Hands with swan-neck deformities of the fingers
Hip X-ray with slippage of the femoral capital epiphysis
Honey-coloured crusted lesions
Lacy white streaks (Wickham's striae) on the buccal mucosa
Large diffuse swelling of the front of the neck
Light-brown, well-defined macule on the abdomen
Linear red-brown streaks under the nail
Multiple small pearly umbilicated papules on a child's trunk
Nail with pitting and onycholysis
Neck X-ray with subglottic narrowing (steeple sign)
Non-contrast CT with bright calculi in both kidneys
Otoscopic view of a perforated tympanic membrane
Pale, glistening polyp in the nasal cavity
Palm with nodules and a cord at the base of the ring finger; fingers still extend
Pelvic X-ray with thickened, sclerotic, expanded bone
Polymorphic broad-complex tachycardia twisting around the baseline
Port-wine stain over the face
Ptosis with the eye deviated down and out
Punched-out ulcer on the heel
Purpuric rash on the lower leg of a child
Raised bright red lesion on an infant
Red eye with a hazy cornea and mid-dilated pupil
Red, swollen first metatarsophalangeal joint
Red, swollen upper eyelid
Rhythm strip of a regular narrow-complex tachycardia
Rough scaly patches on a sun-damaged scalp
Scaly patch of hair loss on the scalp
Several ulcers with violaceous undermined edges on the upper back and arm
Small vesicles on the palms and fingers
Small white spots on the buccal mucosa
Spine X-ray with fused vertebrae (bamboo spine)
Strawberry tongue and red, cracked lips
Stuck-on, warty brown lesions on the back
Swollen red eyelids
Swollen, inflamed ear canal
Tender, poorly demarcated red nodule on the shin
Thickened, discoloured, crumbly toenails
Thin blood film with ring forms inside red cells
Unilateral peritonsillar swelling with uvula deviation
Wavy, scaly linear burrow in the skin
Well-demarcated red plaques with silvery scale on the back
Wrist X-rays (two AP and one lateral view) with distal radius fractures circled
X-ray of an aggressive bone lesion of the proximal tibia
Yellow discolouration of the sclera
Yellow plaque on the upper eyelid