Case-based Learning
Clinical Case Library
81 worked cases — history, examination, imaging, differential, definitive diagnosis, treatment and outcome. Every case links to its full atlas page.
Draft — educational study aid, pending faculty review. Not a substitute for clinical judgement.
81 cases

Slowly enlarging swelling of the anterior maxilla
Painless swelling of the upper front gum for 8 months

Incidental multilocular radiolucency of the mandibular ramus
Lesion found on a routine radiograph before orthodontic treatment

Painless mandibular expansion with tooth displacement
Gradual swelling of the left lower jaw for 2 years

Failure of eruption of a lower third molar with cystic change
Dull ache and swelling behind the last lower right tooth

Non-healing ulcer of the lateral tongue in a smoker
Painful ulcer on the side of the tongue for 3 months

Homogeneous white patch of the buccal mucosa
White patch inside the cheek noticed by the dentist

Progressive trismus in an areca nut chewer
Unable to open the mouth wide and burning on spicy food for 2 years

Bilateral reticular white striae with erosive areas
Soreness of both cheeks, worse with spicy food, for 6 months

White plaques that wipe off in an inhaler user
White coating in the mouth and altered taste for 3 weeks

Rapidly progressive bilateral submandibular swelling with airway compromise
Severe swelling under the jaw and difficulty swallowing for 2 days

Bilateral mandibular fracture after a road traffic collision
Painful jaw, cannot bite properly after a motorcycle crash

Flattened cheek and diplopia after assault
Depressed cheek and double vision after being punched

Midface mobility and malocclusion after a high-speed collision
Face feels loose, teeth do not meet after a car crash
Progressive inability to open the mouth since childhood
Cannot open the mouth; face has grown asymmetrically

Clicking and painful jaw in a young woman
Clicking and pain in front of the ear when chewing for 8 months

Slow-growing painless lump in the parotid
Painless lump in front of the right ear enlarging over 3 years

Palatal swelling with a bluish hue in a young adult
Painless lump on the roof of the mouth for 10 months

Mealtime swelling of the submandibular gland
Painful swelling under the jaw whenever I eat, for 6 months

Dry mouth and bilateral parotid enlargement
Persistent dry mouth and gritty eyes for 2 years

Recurrent bluish swelling of the lower lip in a teenager
Painless bubble on the lower lip that bursts and comes back

Bluish floor of mouth swelling with a cervical component
Swelling under the tongue and in the neck for 4 months
Chronic jaw pain with pus discharge and a sinus tract
Persistent pain and bad-tasting discharge from the lower jaw for 3 months
Exposed necrotic bone in a patient on zoledronic acid
Rough painful area of exposed bone in the lower jaw for 4 months

Painless unilateral maxillary swelling in an adolescent
Gradual enlargement of the left cheek over 3 years

Expansile anterior mandibular lesion crossing the midline
Swelling of the lower front jaw noticed 6 months ago

Rapidly enlarging painful mandibular swelling with lip numbness
Fast-growing painful swelling of the jaw for 6 weeks
Bleeding gingival mass in pregnancy
Lump on the gum that bleeds when brushing, growing for 6 weeks

Widespread painful oral erosions preceding skin blisters
Painful sores throughout the mouth for 2 months, cannot eat

Recurrent painful oral ulcers in a young adult
Mouth ulcers every few weeks for 3 years
Febrile child with widespread oral vesicles and bleeding gingiva
Child refusing food, drooling, with fever for 3 days

Facial swelling and severe pain from a carious molar
Throbbing toothache with cheek swelling for 2 days

Delayed eruption of a maxillary canine in an adolescent
Baby canine still present at age 14

Rapidly enlarging pigmented palatal lesion
Dark patch on the roof of the mouth that has grown and started bleeding

Purple palatal lesions in an HIV-positive patient
Purple patches on the palate that are enlarging

Painless neck lump in a non-smoker with a small tonsillar primary
Lump in the neck for 3 months that does not hurt

Single tooth implant replacement in the aesthetic zone
Missing upper front tooth after a sports injury 6 months ago

Class III skeletal deformity with anterior crossbite
Lower jaw sticks out and I cannot bite my front teeth together

Newborn with a unilateral complete cleft lip and palate
Baby born with a split lip and palate, difficulty feeding

Bluish compressible lesion of the tongue that blanches
Soft bluish lump on the tongue present since childhood
Avulsed maxillary central incisor in a schoolchild
Front tooth knocked out playing football 40 minutes ago

Chronic submandibular swelling with sulphur granules
Firm lump under the jaw discharging yellow granules for 3 months

Painless mandibular expansion around an unerupted third molar
Gradual swelling at the back of the lower jaw noticed 6 months ago

Extensive mandibular radiolucency with minimal expansion
Vague discomfort in the left lower jaw; lesion found on a routine radiograph

Soap-bubble multilocular lesion expanding the mandible
Slowly enlarging hard swelling of the lower jaw for about 2 years

Pericoronal radiolucency with snowflake calcifications in a teenager
Swelling of the upper front jaw with a missing canine

Anterior mandibular swelling crossing the midline in a young adult
Expanding lump in the front of the lower jaw for 5 months
Incidental scalloped radiolucency between vital premolar roots
No symptoms — lesion seen on a radiograph taken before orthodontics

Rapidly growing painful mandibular mass with sun-ray spiculation
Painful, fast-growing swelling of the jaw with numb lower lip for 8 weeks

Firm palatal swelling in a middle-aged woman
Painless lump on the roof of the mouth, slowly growing for a year

Indurated ulcer of the lateral tongue in a smoker
Painful ulcer on the side of the tongue that has not healed for 10 weeks
![Verrucous Carcinoma — histopath image: Micrograph of penile verrucous carcinoma. The tumor is characterized by prominent papillomatosis and acanthosis [haematoxylin-eosin stain, original magnification x20].](https://upload.wikimedia.org/wikipedia/commons/2/26/Micrograph_of_penile_verrucous_carcinoma_-_20x.jpg)
Exophytic warty white plaque of the buccal mucosa in a tobacco chewer
Rough, thick white growth inside the cheek for 2 years

Acute facial swelling from a non-vital lower molar
Severe throbbing toothache with cheek swelling for 3 days
Chronic suppurative osteomyelitis of the mandible after a failed extraction site
Persistent pain, bad taste and pus from the lower jaw for 3 months
Submasseteric space infection with severe trismus
Unable to open the mouth, painful swelling at the angle of the jaw for 5 days

Bilateral submandibular swelling with raised tongue and airway threat
Rapidly increasing neck swelling, drooling and difficulty breathing for 24 hours

Flattened cheek and diplopia after an assault
Facial injury with double vision and numb cheek after being punched

Mid-face mobility and anterior open bite after a road traffic collision
Facial injury with bleeding, teeth not meeting and a long face after a car crash
Complicated crown fracture of an upper central incisor in a schoolboy
Broken front tooth with a bleeding pink spot after falling in the playground
Avulsed permanent incisor replanted after 40 minutes in milk
Front tooth knocked out during a cycling accident

Slow-growing mobile lump below the ear
Painless lump in front of and below the left ear for 3 years

Mealtime swelling of the submandibular gland
Painful swelling under the jaw that appears at mealtimes and settles after an hour

Painful clicking jaw with intermittent locking
Clicking and pain in front of the right ear, jaw sometimes locks closed
Progressive inability to open the mouth after childhood trauma
Cannot open the mouth; difficulty eating and cleaning teeth since childhood

Unilateral complete cleft lip and palate in an infant
Cleft of the lip and palate noted at birth; feeding difficulty
Facial asymmetry with a small ear and deficient ramus
One side of the face is smaller with a malformed ear

Painless unilateral maxillary enlargement in a teenager
Gradual swelling of the right cheek and upper jaw over 3 years

Well-demarcated expansile mandibular lesion with downward bowing
Painless firm swelling of the lower jaw for 18 months

Non-homogeneous white patch of the floor of mouth
White patch under the tongue noticed by the dentist

Progressive trismus and burning mouth in an areca nut chewer
Burning sensation with spicy food and progressively reduced mouth opening

Recurrent bluish swelling of the lower lip in a teenager
Painless bubble on the inside of the lower lip that bursts and returns

Soft yellowish submucosal mass of the buccal mucosa
Painless soft lump inside the cheek, slowly enlarging over 2 years
Recurrent pericoronitis from a mesioangular impacted lower third molar
Repeated painful swelling behind the last lower tooth, four episodes this year

Large lobulated palatal torus preventing denture construction
Cannot wear a new upper denture because of a bony lump on the palate

Class III skeletal pattern with maxillary deficiency and mandibular excess
Prominent lower jaw, difficulty biting with front teeth, unhappy with facial appearance
Progressive chin deviation and open bite on one side
Chin has been moving to the left over 2 years; back teeth on the right no longer meet

Single implant to replace a lost upper central incisor
Missing front tooth after trauma; wants a fixed replacement

Bleeding and bone loss around a lower molar implant
Gum bleeding and bad taste around an implant placed 6 years ago
Exposed bone after extraction in a patient on bisphosphonates
Socket not healed 3 months after a tooth extraction; bad taste
Numb lower lip after third molar removal
Lower lip and chin still numb 3 weeks after wisdom tooth removal

Rapidly spreading neck infection with skin discolouration
Painful neck swelling spreading over 24 hours with dark patches on the skin

Rapid jaw swelling with loose teeth in a child
Fast-growing swelling of the upper jaw with loose teeth over 3 weeks