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CLINICAL PHOTOGRAPHS • VISUAL DIAGNOSIS • HIDDEN REVEALS

🔬 Spot Diagnosis

Fifty photograph-based clinical cases for rapid visual recognition. Look at the photograph first, commit to a diagnosis, then reveal the answer with the key visual clue, important differential and clinical pearl.

FREE SAMPLE Cases 1–5 are fully public. 🔒 MEMBERS Cases 6–50 remain visible but greyed and require Members Access. Images are linked from Wikimedia Commons file pages and retain their individual source/licence attribution.
Clinical photograph for Spot Diagnosis case 1CASE 01
Bedside sign

The Fingers Tell a Story

Study the photograph before revealing the diagnosis.

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Clinical photograph for Spot Diagnosis case 2CASE 02
General examination

Yellow Eyes at the Bedside

Study the photograph before revealing the diagnosis.

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Clinical photograph for Spot Diagnosis case 3CASE 03
General examination

Blue Lips, Blue Fingers

Study the photograph before revealing the diagnosis.

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Clinical photograph for Spot Diagnosis case 4CASE 04
Metabolic / Ophthalmic sign

The Yellow Plaques Near the Eyes

Study the photograph before revealing the diagnosis.

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Clinical photograph for Spot Diagnosis case 5CASE 05
Infectious disease

A Tongue That Gives the Clue

Study the photograph before revealing the diagnosis.

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Clinical photograph for Spot Diagnosis case 6CASE 06
Infectious disease

The Expanding Target

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 7CASE 07
Infectious disease

The Sandpaper Rash

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 8CASE 08
Dermatology

Sharply White Patches

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 9CASE 09
Dermatology

The Eyelid Has Lost Its Colour

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 10CASE 10
Dermatology

Silvery Plaques on the Arm

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 11CASE 11
Dermatology

A Back Covered in Scale

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 12CASE 12
Infectious dermatology

Pain Before the Rash

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 13CASE 13
Infectious dermatology

A Unilateral Band of Vesicles

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 14CASE 14
Ophthalmology / Infection

Forehead Vesicles Near the Eye

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 15CASE 15
Dermatology / Systemic disease

Tender Red Nodules on the Shins

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 16CASE 16
Dermatology / Systemic disease

Both Shins Are Painful

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 17CASE 17
Dermatology

Purple, Pruritic, Polygonal

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 18CASE 18
Oral medicine

White Lacy Lines in the Mouth

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 19CASE 19
Dermatology / Parasitology

Intense Itch Between the Fingers

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 20CASE 20
Dermatology / Parasitology

The Burrow Is the Clue

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 21CASE 21
Dermatology / Infection

Honey-Coloured Crusts

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 22CASE 22
Dermatology / Infection

Crusting Around the Nose

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 23CASE 23
Metabolic medicine

Yellow Deposits on the Eyelids

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 24CASE 24
Metabolic medicine

A Symmetric Eyelid Finding

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 25CASE 25
Lipid disorders

Nodules Over the Hands

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 26CASE 26
General examination

The Whole Face Looks Yellow

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 27CASE 27
General examination

Skin and Sclera Tell the Same Story

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 28CASE 28
Bedside sign

No Window Between the Nails

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 29CASE 29
Respiratory bedside sign

Clubbing in a Chronic Lung Patient

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 30CASE 30
Cardiovascular bedside sign

A Congenital Heart Clue in the Hands

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 31CASE 31
Infectious disease

A Vesicular Rash Across the Back

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 32CASE 32
Infectious disease

Different Stages, Same Rash

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 33CASE 33
Infectious dermatology

One Dermatome, Many Vesicles

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 34CASE 34
Infectious dermatology

The Rash Evolves Day by Day

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 35CASE 35
Dermatology

Depigmentation Around the Hands

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 36CASE 36
Dermatology

Acral White Patches

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 37CASE 37
Dermatology

Scaly Plaques on the Trunk

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 38CASE 38
Dermatology

A Scalp That Will Not Stop Scaling

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 39CASE 39
Dermatology / Systemic disease

Painful Nodules After a Systemic Illness

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 40CASE 40
Dermatology / Systemic disease

A Cluster of Shin Nodules

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 41CASE 41
Dermatology

Violaceous Papules on the Skin

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 42CASE 42
Oral medicine

A Lichenoid Pattern Near Dental Work

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 43CASE 43
Dermatology / Parasitology

Excoriated Papules After Household Spread

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 44CASE 44
Dermatology / Parasitology

A Very Itchy Wrist

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 45CASE 45
Dermatology / Infection

Crusted Lesions Across the Face

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 46CASE 46
Dermatology / Infection

A Localised Bullous Infection

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 47CASE 47
Dermatology

Thick Scale on Extensor Skin

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 48CASE 48
Dermatology

Generalised Depigmentation Pattern

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 49CASE 49
Ophthalmology / Infection

Shingles Near the Eye — Day Two

Clinical photograph and hidden diagnosis available with Members Access.

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Clinical photograph for Spot Diagnosis case 50CASE 50
Dermatology / Systemic disease

A Classic Shin Reaction Pattern

Clinical photograph and hidden diagnosis available with Members Access.

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Image sourcing: Clinical photographs are served from Wikimedia Commons. Each case page links to its exact Commons file page so the original author/source and licence can be reviewed. If a source image is later removed or renamed by Commons, that individual image may need replacement without affecting the case bank.