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Previous Volume 335:876-881 September 19, 1996 Number 12 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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Presentation of Case

A 59-year-old man was admitted to the hospital because of a painful preauricular mass.

He had been well until five months earlier, when he noticed a mild hearing impairment in the right ear. Several weeks later, the hearing loss worsened. Evaluation by an otologist showed no evidence of an acoustic neuroma. A cranial magnetic resonance imaging (MRI) scan (Figure 1) showed that the articular disk was absent; there was gross expansion of the joint capsule, with heterogeneous signal characteristics on T₁-weighted and T₂-weighted images, as well as heterogeneous enhancement. Low-signal regions were interpreted as areas of . . . [Full Text of this Article]

Differential Diagnosis

Clinical Diagnosis

Dr. R. Bruce Donoff's Diagnosis

Pathological Discussion

Anatomical Diagnoses

Addendum

References

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