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Clinical Problem Solving: Radiology
June 2002

Diagnosis Radiology Quiz

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Copyright 2002 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2002

Arch Otolaryngol Head Neck Surg. 2002;128(6):724. doi:

Epidermoids are ectoderm-lined (squamous epithelium) inclusion cysts that arise from trapped pouches of ectoderm near normal folds or from failure of surface ectoderm to separate from the neural tube during normal embryological development between 3 and 5 weeks' gestation. They can also occur as a result of traumatic implantations that force skin tissue to be trapped in the subcutaneous tissue (eg, iatrogenic, stab, or puncture wounds).1

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