Evidence · The Case Library

The Case Library

Browse our growing library of real findings from real scans, written by the radiologists who identified them.

900,000+
Cases interpreted
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Oral & maxillofacial radiologists
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01

Case of the Month

Multiple Radiolucent Lesions Lead to Plasmacytoma Correlation

A 74-year-old male was referred for a general review of his CBCT scan with no additional clinical information provided. The scan had originally been taken to evaluate a draining fistula on tooth #30, and the large radiolucency in the lower anterior region was an incidental finding.

During comprehensive evaluation, the radiologist identified multiple low-density areas, including a second lesion in the left ramus that was not mentioned in the referral. The presence of multiple lesions raised suspicion for a systemic abnormality, prompting the radiologist to contact the referring clinic for medical history. It was then learned that the patient had a history of plasmacytoma, first identified several years prior, which had returned on his pelvic bone near a hip prosthesis. The patient had recently completed two sessions of proton radiation therapy and was awaiting a PET scan before starting chemotherapy.

This case illustrates how obtaining medical history, combined with thorough scan review, can connect seemingly unrelated findings to a known systemic condition and support the clinical team in coordinating the patient's care.

De-identified scan figureRead the case →
02

The Cases

Radiopaque Lesion at Tooth #30 Suggestive of Cemento-Osseous Dysplasia

Endodontic

A 56-year-old female's radiopaque lesion at tooth #30 was suggestive of cemento-osseous dysplasia; follow-up was recommended to rule out cementoblastoma.

De-identified scan figure

Suspected Acute Sinusitis and Foreign Body on Evaluation of a Periapical Infection

Endodontic

A 62-year-old male referred with a periapical infection had findings suggesting acute sinusitis and a suspected foreign body; ENT referral was recommended.

De-identified scan figure

Likely Buccal Bifurcation Cysts on Both a Maxillary and a Mandibular Molar

General

An 8-year-old female had likely buccal bifurcation cysts on both a maxillary and a mandibular molar, a presentation the radiologist noted is very rare.

De-identified scan figure

Cervical Spine Anomalies and Basilar Invagination on TMJ Evaluation

TMJ

A 34-year-old female's TMJ evaluation showed basilar invagination and other cervical spine anomalies, with referral recommended if not already evaluated.

De-identified scan figure

Severely Limited Airway and Likely Dual Bite Identified on General Review

General

A 37-year-old male's general review showed a severely limited airway and findings favoring a dual bite, an orthopedically unstable condylar position.

De-identified scan figure

Phleboliths in the Pterygoid Plexus Region on Medium Field of View Evaluation

General

A 43-year-old female's medium field of view scan for one tooth showed lesions strongly suggestive of phleboliths, which may indicate vascular pathology.

De-identified scan figure

Asymptomatic Ethmoid Sinus Osteoma on Evaluation of an Incidental Sinus Radiopacity

General

An asymptomatic 29-year-old male's small sinus radiopacity was consistent with an ethmoid osteoma causing no issues, so no further intervention was needed.

De-identified scan figure

Radiolucent Mandibular Lesion with Cortical Plate Loss on Evaluation of Buccal Swelling

General

A 51-year-old female's scan for buccal swelling showed no sign of root fracture but a radiolucent lesion with cortical plate loss; biopsy was recommended.

De-identified scan figure

Calcifying Anterior Maxillary Lesion Identified on Pre-Orthodontic TMJ Evaluation

Orthodontic

A 20-year-old male's pre-orthodontic scan showed a calcifying anterior maxillary lesion, and the radiologist recommended addressing it before treatment.

De-identified scan figure

Large Odontogenic Lesion Occupying the Right Maxillary Sinus on Pediatric Evaluation

General

An 11-year-old male's large lesion filling the right maxillary sinus, associated with a displaced tooth, was most suggestive of a benign cyst or tumor.

De-identified scan figure

Biopsy-Confirmed Glandular Odontogenic Cyst on Follow-Up Evaluation of a Displaced Third Molar

General

A 63-year-old female's biopsy-confirmed glandular odontogenic cyst had shrunk on follow-up, and nerve tracing was provided to support surgical planning.

De-identified scan figure

Multiple Radiolucent Lesions Lead to Plasmacytoma Correlation

General

Multiple jaw lesions in a 74-year-old male prompted the radiologist to request his medical history from the clinic, which revealed a known plasmacytoma.

De-identified scan figure

Multiple Odontogenic Keratocysts Suggesting Gorlin-Goltz Syndrome on Orthodontic Evaluation

Orthodontic

A 10-year-old male's orthodontic evaluation showed multiple odontogenic keratocysts, with findings consistent with possible Gorlin-Goltz syndrome.

Bilateral Cemento-Osseous Dysplasia in Asymptomatic Young Adult

General

An asymptomatic 24-year-old female's scan showed an extreme presentation of what appears to be florid cemento-osseous dysplasia in both jaws.

De-identified scan figure

Canalis Sinuosus Mimicking Pathology Near Anterior Tooth

General

A 67-year-old male's scan for possible pathology around tooth #6 showed canalis sinuosus, an anatomical variation, rather than resorption or pathology.

De-identified scan figure

Amorphous Radiopacity with Tooth Resorption in Patient Under Prostate Cancer Investigation

General

In a 72-year-old male under investigation for prostate cancer, a radiopacity resorbing a tooth could be atypical osteosclerosis or a metastatic focus.

De-identified scan figure

Surgical Ciliated Cysts Following Orthognathic Surgery

General

A 44-year-old female with prior orthognathic surgery had two cysts identified in the right mandible, consistent with surgical ciliated cysts.

De-identified scan figure

Suspected Fibrous Dysplasia Causing Mandibular Tooth Impaction

General

A 16-year-old female's scan for a supernumerary tooth showed a mandibular lesion suspicious for fibrous dysplasia, apparently causing a tooth's impaction.

De-identified scan figure

Sclerotic Skull Base Lesion on Routine Orthodontic Imaging

General

A 41-year-old female's orthodontic scan showed a sclerotic skull base lesion that may be reactive hyperostosis from a brain tumor, or fibrous dysplasia.

De-identified scan figure

Fungating Nasal Cavity Lesion in Patient with Cancer History

General

A 46-year-old male with a cancer history and asymptomatic palatal swelling had a large fungating nasal growth identified, and ENT biopsy was recommended.

De-identified scan figure

Cemento-Osseous Dysplasia Versus Cementoblastoma at Mandibular Third Molar

General

A suspected cementoblastoma at a 43-year-old female's third molar was identified as cemento-osseous dysplasia; the two differ in treatment implications.

De-identified scan figure

Rare Fungal Infection Identified in Evaluation of Rapidly Mobile Teeth

General

Findings around a 59-year-old female's rapidly mobile teeth suggested possible malignancy, but were determined to be a very rare, serious fungal infection.

Arrested Mesiodens Within the Nasopalatine Canal on Pre-Orthodontic Evaluation

Orthodontic

A 9-year-old male's pre-orthodontic scan showed an arrested mesiodens inside the nasopalatine canal, a very rare presentation localized with 3-D imaging.

Persistent Nasal Lesion Identified One Year After Reported Complete Excision

General

A year after a 76-year-old female's nasal lesion was excised, her scan showed it had not been completely removed and had grown; she had further surgery.

Silent Sinus Syndrome Identified on Impacted Canine Evaluation

Orthodontic

A 19-year-old female's impacted canine scan was suspicious for silent sinus syndrome, and clinical photographs confirmed orbital and facial asymmetry.

Large Spheno-Choanal Polyp Identified on Oral Surgery Referral Scan

General

An asymptomatic 83-year-old male referred for large maxillary sinuses had a lesion suggestive of a large spheno-choanal polyp, a rare incidental find.

Coronoid Hyperplasia with Zygoma Osteoma on Orthodontic Evaluation

Orthodontic

An 18-year-old female's orthodontic scan showed bilateral coronoid hyperplasia and a very rare zygoma osteoma, likely from repeated coronoid contact.

Severe Mandibulofacial Dysostosis in Patient with Treacher Collins Syndrome

Orthodontic

A 14-year-old female with Treacher Collins syndrome had severe mandibulofacial dysostosis identified on a dental, orthodontic, and surgical planning scan.

Aggressive Mixed-Density Lesion in Left Nasal Cavity

General

A 26-year-old female referred for a left nasal radiopacity had an aggressive expansile lesion identified, and urgent ENT consultation was recommended.

Parotid Gland Calcifications Suggesting Possible Unidentified Systemic Condition

General

Suspected apical periodontitis was the likely source of a 55-year-old female's swelling; parotid calcifications were possibly tied to another condition.

Exceptionally Large Submandibular Sialolith with Bone Remodeling

General

An incidental finding on a 72-year-old male's CBCT was identified as an exceptionally large submandibular sialolith, mildly remodeling the mandible.

Linear Nevus Sebaceous Syndrome with Craniofacial Involvement

General

A 9-year-old male with a questionable history of linear nevus sebaceous syndrome, which is highly uncommon, had cysts and orbital projections on imaging.

De-identified scan figure

Extensive Skull Base Lesion on Post-Orthodontic Imaging

General

What first appeared limited to the sphenoid on a 17-year-old female's post-orthodontic scan was an extensive skull base lesion reaching the optic canal.

De-identified scan figure

Suspicious Post-Surgical Changes in Patient with Undisclosed Cancer History

Orthodontic

Post-surgical skull base defects on a 51-year-old male's scan led the radiologist to contact the practice, which confirmed an undisclosed chordoma removal.

Anatomic Variation Identified on Palatal Lesion Evaluation, Preventing Unnecessary Surgery

General

A 12-year-old female's palatal swelling finding was consistent with an anatomic variation, and the surgeon advised surgery was not needed at that time.

Cemento-Ossifying Fibroma Differentiated from Cemento-Osseous Dysplasia on Follow-Up

General

Histology on a 50-year-old female's lesion could not rule out cemento-ossifying fibroma; four years later it had nearly doubled and was identified as one.

Chronic Rhinosinusitis as Source of Dental Pain on Tooth Evaluation

General

A 75-year-old male's scan for about two years of pain at tooth #2 showed no significant overt dental pathology, and the adjacent sinus was a likely source.

Recurrent Odontogenic Keratocyst with Delayed Follow-Up Imaging

General

A 24-year-old female with pain and swelling had a large recurrent odontogenic keratocyst identified, 29 months after her last radiologist-reviewed scan.

Bilateral Intraosseous Vascular Malformation of the Mandible

General

A 69-year-old male's mandible showed a likely intraosseous vascular malformation on both sides, and deferring invasive procedures was recommended.

Mandibular Bone Concavity Potentially Associated with Prolonged Botox Use

General

A 37-year-old female receiving Botox injections had a well-defined concavity identified on the mandible near the attachment of the masseter muscle.

Adenoid Cystic Carcinoma Identified in Maxillary Sinus on Facial Pain Evaluation

General

Maxillary sinus thickening suspected to be a pseudocyst showed aggressive features on the radiologist's review; biopsy confirmed adenoid cystic carcinoma.

Gardner Syndrome Identified on Supernumerary Tooth Evaluation with Family Impact

Orthodontic

Sclerotic jaw findings in a 15-year-old male led to confirmation of Gardner syndrome, and family screening found his mother's cancer at stage 2.

Dense Bone Islands and Osteomas Suggest Familial Adenomatous Polyposis on TMJ Evaluation

TMJ

Dense bone islands and osteomas on a 17-year-old male's TMJ scan strongly suggested familial adenomatous polyposis; primary care referral was recommended.

Secondary Synovial Chondromatosis and DJD Identified on TMJ Evaluation

TMJ

A 56-year-old female with jaw clicking had degenerative joint disease identified, plus a large loose body suggesting secondary synovial chondromatosis.

Condylar Osteochondroma with Secondary Synovial Chondromatosis on TMJ Mass Evaluation

TMJ

A 75-year-old female's TMJ mass evaluation identified a condylar osteochondroma, plus calcified loose bodies suggesting secondary synovial chondromatosis.

Large Soft Tissue Mass Obstructing Airway Identified on TMJ Evaluation

TMJ

A 79-year-old male's TMJ scan for ear and jaw pain showed a very large soft tissue mass obstructing his airway, and ENT referral was strongly recommended.

Maxillary Sinus Mucosal Thickening with Orbital Floor Displacement on TMJ Evaluation

TMJ

Severe sinus thickening displacing a 61-year-old female's orbital floor on a TMJ scan led the radiologist to contact the practice and stress ENT referral.

Metastatic Breast Cancer Identified on TMJ Evaluation Without Provided History

TMJ

Lesions in a 73-year-old female's TMJs and spine put metastasis in the differential; the practice confirmed a breast cancer history not in the referral.

TMJ Evaluation Identifies Base of Tongue Malignancy

TMJ

Tongue base asymmetry on a 90+ year old male's TMJ scan led the practice, on the radiologist's advice, to refer him to ENT, where carcinoma was confirmed.

Osteomyelitis with Fracture Risk Following Third Molar Extraction

TMJ

A 43-year-old female's post-extraction scan showed signs of osteomyelitis with very high fracture risk, and the radiologist contacted the practice at once.

Near-Complete Airway Obstruction from Parapharyngeal Lesion on TMJ Evaluation

TMJ

A lesion leaving a 61-year-old male only millimeters of airway led the radiologist to call the practice; the referring doctor directed him to urgent care.

Septic Arthritis of the TMJ with Rapid Condylar Destruction

TMJ

Severe condylar resorption within three months in a 21-year-old male suggested septic arthritis, and antibiotics at urgent care helped resolve symptoms.

TMD Evaluation Reveals Brain Tumor with 10-Year Comparison

TMJ

Lytic skull changes on a 69-year-old female's TMD scan, absent on a scan from 10 years earlier, led to an MRI that confirmed a brain tumor.

Breast Cancer Metastasis to Mandibular Condyle Identified on TMJ Evaluation

TMJ

A 62-year-old female's condylar changes proved to be breast cancer metastasis, and a follow-up scan two years later showed a suspected new C4 lesion.

Synovial Chondromatosis Identified on TMJ Evaluation

TMJ

On second-opinion review, a 74-year-old female's TMJ showed a large loose ossified body, with findings suggestive of rare synovial chondromatosis.

Incidental Calvarial Abnormality Identified During Pediatric Airway Evaluation

Airway

A 5-year-old's airway scan showed parietal calvarial thinning that falls in a gray zone between developmental variation and a pathologic process.

Nasopharyngeal Obstruction Identified on Routine Airway Evaluation

Airway

A lesion occluding a 14-year-old male's entire nasopharynx led the practice, on the radiologist's recommendation, to promptly refer him to ENT.

Fibrous Dysplasia of the Left Temporal Bone on Airway Evaluation

Airway

A 35-year-old male's airway and sinus scan showed temporal bone changes consistent with fibrous dysplasia, and monitoring for hearing loss was recommended.

Multiple Calcified Lymph Nodes with Airway Narrowing on Orthodontic Evaluation

Orthodontic

Likely calcified lymph nodes on a 6-year-old male's orthodontic scan led the practice, on the radiologist's advice, to refer him to pediatrics and ENT.

Large Polypoidal Lesion with Severe Airway Obstruction on Soft Palate Evaluation

Airway

A mass behind a 60-year-old male's soft palate was considerably larger on the scan than it appeared clinically, severely obstructing his airway.

Sphenochoanal Polyp and Ossified Stylohyoid Ligament on Initial Airway Exam

Airway

A 46-year-old male's initial airway exam showed a sphenochoanal polyp blocking the right choana, a rarer find than the more common antrochoanal polyp.

Silent Sinus Syndrome on Pre-Frenuloplasty TMJ and Airway Analysis

Airway

A 27-year-old male's TMJ and airway analysis before frenuloplasty showed findings consistent with silent sinus syndrome, and ENT referral was recommended.

Suspected Tonsillar Carcinoma on Mandibular Advancement Device Evaluation

Airway

A 74-year-old female's scan before a mandibular advancement device showed a tonsillar lesion suspicious for carcinoma that she had been unaware of.

Foreign Body in External Auditory Canal Identified on Airway Review

Airway

A 7-year-old male's airway review showed a foreign body partially obstructing the right ear canal, and ENT referral for its removal was recommended.

Retropharyngeal Lipoma Identified on Pre-Oral Appliance Evaluation

Airway

A 61-year-old female's scan before planned oral appliance therapy for sleep apnea showed a large retropharyngeal lipoma likely contributing to her OSA.

Persistent Oil-Based Myelogram Contrast Agent Identified on Airway Evaluation

Airway

Dense radiopacities across a 70-year-old female's skull base were likely oil-based myelogram contrast that had persisted for about 50 years.

Dual Bite with Airway Compromise on Sleep Practice Evaluation

Airway

A 51-year-old male referred by a sleep practice had a severely limited airway identified, along with condyle positioning that favored a dual bite.

Bilateral Otitis Media and Mastoiditis on Airway Evaluation

Airway

A 4-year-old with no pain had findings consistent with bilateral otitis media and mastoiditis, and after ENT placed tubes, her hearing improved.

Suspected Surgical Ciliated Cyst on Small Field of View Endodontic Scan

Endodontic

At the edge of a small field of view endodontic scan, a 20-year-old's palate showed a lesion suggestive of a surgical ciliated cyst.

Aggressive Lesion Associated with Tooth 16 on Palatal Swelling History

Endodontic

In a 46-year-old male with recent palatal swelling, a lesion at the palatal root of tooth 16 showed aggressive features, and biopsy was recommended.

Asymmetric Adenoid Tonsil Enlargement on Periapical Pathology Review

Endodontic

A 72-year-old female's CBCT for tooth #3 showed asymmetric adenoid enlargement, which nasopharyngeal cancer can resemble; ENT evaluation was recommended.

Dense Bone Island with External Root Resorption on Mandibular Evaluation

Endodontic

A 27-year-old female's tooth #30 radiopacity was more characteristic of a dense bone island, though resorption on the same tooth may still need action.

Ambiguous Radiolucency Near Nasopalatine Canal and Maxillary Central Incisor

Endodontic

A radiolucency at a 78-year-old male's central incisor could originate from the tooth or the nasopalatine canal, an ambiguity only a biopsy can resolve.

De-identified scan figure

Expansile Dentoalveolar Lesion on Endodontic Referral

Endodontic

In a 60-year-old male with palatal swelling despite vital teeth, the scan showed an expansile lesion most suggestive of ameloblastoma, a benign neoplasm.

Periapical Lesion Differentiated from Nasopalatine Duct Cyst on Endodontic Evaluation

Endodontic

Findings at a 74-year-old female's tooth #9 favored a periapical lesion over a nasopalatine duct cyst, two possibilities that call for different treatment.

Periapical Cemento-Osseous Dysplasia with Suspected Secondary Infection

Endodontic

In a 39-year-old male with lower anterior pain, findings suggested cemento-osseous dysplasia with suspected perforations; infection should be considered.

Soft Tissue Infection from Non-Healing Endodontic Lesions on Submental Mass Evaluation

Endodontic

For an 87-year-old female's chin mass, inconclusive on ultrasound, CBCT showed apical lesions with no apparent healing and suggested soft tissue infection.

Malignancy Features Identified in Lesion Initially Suspected as Endodontic Pathology

Endodontic

An apparent large endodontic lesion in an 80-year-old male was more consistent with malignancy, and the office confirmed he had multiple myeloma.

Aneurysm Coil Mass Identified on Implant Evaluation

Implant

A dense circular structure near a 66-year-old female's foramen magnum was consistent with an aneurysm coil mass, correlating with her reported surgery.

Retropharyngeal Carotid Artery Calcification on Implant Evaluation

Implant

A carotid calcification toward the midline on a 58-year-old female's implant scan suggested an uncommon retropharyngeal type that could mimic the hyoid.

Suspected Silent Sinus Syndrome Identified on Implant Evaluation

Implant

A 49-year-old male's implant scan showed a hypoplastic maxillary sinus with caved-in walls and bowed orbital floor, suspicious for silent sinus syndrome.

Implant Apex Extending into Inferior Alveolar Canal

Implant

A 37-year-old female's scan for pain after trauma showed an implant apex entering the inferior alveolar canal; neurosensory assessment was recommended.

Cosmetic Mandibular Implant with Asymmetric Positioning and Bone Erosion

Implant

A 73-year-old female with discomfort near implant 19 had an asymmetrically positioned cosmetic mandibular implant identified, with mild cortical erosion.

Suspected Metastatic Lesion Identified in Patient with Known Malignancies

Implant

In a 70-year-old male with known malignancies, one poorly defined lesion among several inflammatory ones needed metastatic disease ruled out.

Jewelry Artifact Affecting Implant Planning CBCT

Implant

A 57-year-old female's implant planning scan had artifact from several jewelry pieces left on, including an earring just outside the field of view.

De-identified scan figure

Suspected Langerhans Cell Histiocytosis on Pre-Implant Evaluation

Implant

A 48-year-old male with all-on-x planned had floating-tooth bone destruction identified; biopsy was recommended to rule out Langerhans cell histiocytosis.

Likely Impacted Foreign Body at Base of Tongue Identified on Implant Evaluation

Implant

A 71-year-old female's implant scan showed a linear radiopaque entity at the tongue base, a common site for impacted sharp food objects such as fish bones.

Middle Cranial Fossa Expansion Identified on Implant Evaluation

Implant

An implant scan of a 64-year-old male showed expansion of the middle cranial fossa, which was determined to be a slow-growing, benign brain tumor.

Fibrous Dysplasia vs. Segmental Odontomaxillary Dysplasia on Implant Evaluation

Implant

A 46-year-old female's implant site had a lesion suggesting fibrous dysplasia or rare segmental odontomaxillary dysplasia, warranting surgical caution.

Extensive Sinonasal Changes on Routine Exam

General

A 41-year-old male's scan from a routine exam and cleaning showed extensive sinonasal changes, and an expedited ENT referral was recommended.

Intracranial Finding on TMJ/Airway Scan

TMJ

A brain hyperdensity on a 73-year-old female's TMJ scan prompted the radiologist to call the practice, and an MRI the same day confirmed a meningioma.

No cases in this view yet. New cases are added as our radiologists submit them.

All cases are de-identified. Details are limited to what the submitting radiologist reported; findings are identified on imaging and confirmed through clinical correlation by the treating team.

03

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