Intradiploic epidermoid cysts.
We studied 37 intradiploic epidermoid cysts, reviewing typical and atypical radiological features and the differential diagnosis. The most common clinical feature was a long standing lump in the scalp, occurring in 25 patients (67.7%). Plain films were the most cost-effective radiological technique in diagnosis. The typical finding was a well-defined lytic lesion with sclerotic border, seen in 29 cases (78%). Atypical lesions were those larger than 5 cm and/or with an ill-defined edge, being observed in 8 cases (22%). CT and MRI were the best methods for assessing atypical ones. In all cases with typical radiological findings a preoperative diagnosis of intradiploic epidermoid cyst was suggested.
Arana
E
E
Department of Radiology, University Hospital La Fe, Valencia, Spain.
Latorre
F F
FF
Revert
A
A
Menor
F
F
Riesgo
P
P
Liaño
F
F
Diaz
C
C
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005260:Female; D005624:Frontal Bone / Q000473:pathology / Q000601:surgery; D019786:Gadolinium DTPA; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009942:Organometallic Compounds; D010014:Osteolysis / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D010294:Parietal Bone / Q000473:pathology / Q000601:surgery; D004369:Pentetic Acid / Q000031:analogs & derivatives; D012886:Skull / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA