Table 1:

Patient age and sex, clinical presentation, lesion location, and radiographic diagnosis

Case	Age, Sex	Clinical Presentation	Location	Radiographic Diagnosis
1	10 yr, F	Mass and bloody otorrhea for 10 days	External auditory canal, polypoid mass	Polyp
2	4 mo, M	Mass and bloody discharge for 1 month	External auditory canal, subcutaneous tissues	Sebaceous cyst, dermoid or branchial cleft cyst
3	3 mo, M	Reddish-blue nodule for 2 days	Infra-auricular, subcutaneous, and cutaneous	Lymph node, pilomatrixoma, nontuberculous mycobacterial infection
4	1 mo, M	Facial weakness, otorrhea for 1 month	Infratemporal fossa, middle ear space, bony erosion, intracranial, temporal lobe edema	LCH, neuroblastoma
5	7 mo, F	Scalp mass for 2 weeks	Subperiosteal with outer table erosion, parietal bone	Neuroblastoma metastasis, LCH, fibromatosis, other malignant tumor
6	4 mo, F	Enlarging scalp mass for 6 weeks	Cutaneous edema, subcutaneous scalp mass over coronal suture	Dermoid
7	1 mo, F	Mass over nose since birth	Subcutaneous tissue, midline nasofrontal	Neuroglial heterotopia
8	10 mo, F	Enlarging mass over nose for 3 weeks	Subperiosteal with outer table erosion, midline frontal	LCH, metastasis such as neuroblastoma, other malignant tumor
9	12 yr, F	Tremor for 6 months, recent seizure	Intracranial, extra-axial; frontal lobe edema	Tumor not otherwise specified
10	9 mo, M	Multiple skin lesions since birth, occipital lesion for 4 weeks	Innumerable scalp lesions; occipital calvarial, epidural; intracranial parietal dural-based	Referred for imaging with known diagnosis of JXG