A comparison of ultrasonography and magnetic resonance imaging in the evaluation of temporomandibular joint involvement in rheumatoid arthritis and psoriatic arthritis.

Objective: To define the diagnostic value of ultrasonographic (US) examination in comparison with magnetic resonance imaging (MRI) for the assessment of temporomandibular joint (TMJ) involvement in rheumatoid arthritis (RA) and psoriatic arthritis (PsA).

Methods: MRI and US examinations were performed in 33 patients (22 with RA and 11 with PsA). Alterations of the disc, alterations of the condyle and joint effusion were evaluated.

An unusual neck mass: the Warthin tumor.

The cystoadenolymphoma or Warthin's tumor is a benign lesion of the salivary glands and principally of the parotid gland. We report a case of a 62 year old white male seen at our Institute for evaluation of an asymptomatic right neck mass located 2 cm below the mandible at the anterior margin of the sternocleidomastoid muscle. The echography showed a lymphoid structure simulating a lymphoproliferative process.