[Carcinoid tumor, a late diagnosis]. / Carcinoid tumor, een laattijdige diagnose]

Carcinoid tumor is often a late diagnosis due to the unspecificity of symptoms leading the radiologist rely on different investigation procedures. We present a case illustrating the contribution of US by demonstrating the suggestive combination of radiating mesenteric densities with a mesenteric mass.

Arthrography of the temporomandibular joint: pictorial essay.

Although arthrography of the TMJ is nowadays considered as old-fashioned, the technique remains a valuable alternative in cases where MRI is contraindicated. The authors discuss the technique of inferior joint space arthrography and present a review of typical arthrographic cases of the most common types of TMJ pathology.

Large polypoid gastric leiomyoma with intermittent duodenal prolapse.

A case of large pedunculated gastric leiomyoma with intermittent prolapse into the duodenum, causing a somewhat confusing clinical picture is presented. Ultrasound-, CT- and barium studies clearly showed the origin and extent of the tumor. Sonography was the only imaging method that showed intermittent prolapse of the tumor during examination. Imaging studies did not allow prediction of the benign nature of the tumor.

Arthro-CT in detecting sideways displacement of the temporomandibular joint disk.

One of the major disadvantages of sagittal arthrotomography of the temporomandibular joint is its limited capability to detect sideways (medial or lateral) disk displacement. Several arthrographic signs, suggesting sideways disk displacement have been described in recent reports. The most important one is the edge sign. In doubtful cases, arthro-CT can be used for depiction of medial or lateral disk displacement.

Arthrographic imaging of post-traumatic temporomandibular joint disorders.

Clinical, arthrographic and surgical findings in 20 patients who showed persisting TMJ-pain or dysfunction after an acute traumatic event were reviewed and compared to findings in a control group of 65 patients who did not remember an acute post-traumatic onset of symptoms. Anterior disk displacement (82%), disk perforation (65%) and rotational anteromedial disk displacement (34%) were the most common abnormalities encountered. Other important abnormalities were joint adhesions and capsule perforation. When compared with the control group, all these abnormalities occurred more often in traumatised joints. Arthrography was found to be highly accurate in detecting most types of abnormalities found during surgery. Arthrography is reported to be more effective than MRI in detecting disk perforations, adhesions and capsule perforations, which points to its continuing importance as an imaging tool for evaluating post-traumatic temporomandibular joint disorders.

Orbital myositis following an upper respiratory tract infection: contribution of high resolution CT and MRI.

A case of isolated unilateral extraocular muscle myositis following an acute upper respiratory tract infection is reported. Painful eye movements, restricted eye motility and exophthalmus but a normal visual acuity are the most important clinical findings. High resolution contrast enhanced CT and MRI are the imaging modalities of choice to differentiate from other orbital pathologies. The solitary enlarged muscle was clearly seen on both the contrast enhanced CT and the MR examination. Preseptal cellulitis was better seen on MRI, whereas high resolution CT was superior in the demonstration of periscleritis. Graves' ophthalmopathy and orbital cellulitis first have to be excluded. Corticosteroids are the therapy of choice in orbital myositis. A control, contrast enhanced CT after 4 weeks showed an almost normal muscle.