We present a case of chordoid glioma involving the third ventricle in a 42-year-old woman. CT and MR showed a homogeneously enhancing mass occupying the third ventricle, with a cystic component. Chordoid glioma should be included in the differential diagnosis of uncommon masses of the third ventricle in middle-aged women.

Adult↗

PubMedDate not supplied

Report of changing signal intensity on follow-up MRI in a case of hypothalamic hamartoma.

We present a case of hypothalamic hamartoma in which the signal intensity of the lesion significantly changed during the course of follow-up. To date, stability of the lesion morphology over time has been considered an important diagnostic criterion of hypothalamic hamartoma. Radiologists should be aware that in hypothalamic hamartoma, signal intensity can change during its natural course.

Female↗

PubMedDate not supplied

A comparative study between MR sialography and salivary gland scintigraphy in the diagnosis of Sjögren syndrome.

PURPOSE: The purpose of this work was to compare the diagnostic accuracy of MR sialography with that of salivary gland scintigraphy in Sjögren syndrome. METHOD: One hundred thirty patients clinically suspected of having Sjögren syndrome were examined by MR sialography and salivary gland scintigraphy. A labial gland biopsy was performed in all patients. Imaging findings of MR sialography and salivary gland scintigraphy were compared with the results of labial gland biopsy. RESULTS: From the results of labial gland biopsy, the diagnosis of Sjögren syndrome was established in 80 patients. Abnormally high T2 signal intensity areas on MR sialography and decreased uptake and delayed excretion of [(99m)Tc]pertechnetate on salivary gland scintigraphy were well seen in patients with Sjögren syndrome. For the diagnosis of Sjögren syndrome, salivary gland scintigraphy showed higher sensitivity than MR sialography. On the other hand, MR sialography showed higher specificity and positive predictive value (PPV) than salivary gland scintigraphy. Overall diagnostic accuracy was 83% for MR sialography and 72% for salivary gland scintigraphy. CONCLUSION: The high PPV of MR sialography suggests that MR sialography is the preferred imaging modality in patients suspected of having Sjögren syndrome.

Adolescent↗

PubMedDate not supplied

Magnetic resonance imaging as an effective tool for successful localization of superior mediastinal parathyroid adenoma.

Noninvasive diagnostic procedures for the preoperative localization of parathyroid tumors were performed on a 59-year-old woman with hypercalcemia. In this case, sonography and computed tomographic scanning could not pinpoint the location of the tumor. Thallium-201 and technetium-99m subtraction scintigraphy was also inconclusive in the precise localization of the tumor, but it did define the location retrospectively. However, magnetic resonance imaging (MRI) clearly demonstrated the parathyroid tumor as a high signal on T2-weighted image in the left upper part of the superior mediastinum. The intrathymic parathyroid oxyphil adenoma was resected. Therefore, MRI was considered an effective tool for the localization of parathyroid adenoma, particularly mediastinal parathyroid adenoma.

Adenoma↗

PubMedDate not supplied

Dihydroergotamine raises the level of serum growth hormone.

Explore the source record for details and available documents.

Adult↗