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Results for “ADRENAL GLAND DISEASES”

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At least 451 records · Page 25Linked to original sources
PubMed1992

Characteristics and management of patients with fetal neuroblastoma.

At 35 weeks 6 days of gestational age, ultrasound evaluation of the fetal abdomen showed a mixed cystic mass in the superior pole of the left kidney. The mass was suspected to be an adrenal hemorrhage or neuroblastoma. The diagnosis was fetal neuroblastoma. Differential diagnosis enabled the fetal neuroblastoma to be distinguished from adrenal hemorrhage. The parameters of diagnosis of fetal neuroblastoma include no specific ultrasonographic pattern, lack of palpability, and no tumor markers. However, certain features do characterize fetal neuroblastoma, such as little metastases, complete resection at operation, and excellent prognosis. In cases of suspected neuroblastoma, a laparotomy performed as soon as possible is generally regarded as the best course of treatment. Nonetheless, biological analyses of the tumor may prove in the future to be necessary for determining whether or not laparotomy is the best treatment.

Adrenal Gland Diseases↗
PubMed2006

[The new role for endoscopic ultrasound in endocrinology: imaging of the adrenals and the endocrine pancreas].

Endoscopic ultrasound imaging of the adrenals and the endocrine pancreas enriches the diagnostic repertoire and improves the clinical opportunities of endocrinology. Its resolution enables detection of tumors as small as 2-3 mm. Endoscopic ultrasound imaging is especially relevant in the diagnosis of insulinomas and primary hyperaldosteronism, because it has direct consequences in planning a diagnostic and therapeutic strategy.

Adrenal Gland Diseases↗
PubMed1991

Diagnosis and imaging of the fetal and neonatal abdominal mass: an integrated approach.

Almost all of the renal causes of NAM and adrenal neuroblastoma, the most common nonrenal cause, can be categorized as cystic or solid by sonography. Evaluation with CT is usually the most appropriate next step for assessment of solid renal tumors lacking clinical features of RVT. Renal scintigraphy and diuretic renal scintigraphy offer valuable information about relative individual kidney GFR and excretory function, whether normal, partially, or completely obstructed. Many dilated urinary tracts, especially those diagnosed in utero, are found to resolve spontaneously when serial studies are performed. The informed pediatrician should play a major role in the selection of diagnostic procedures and determination of management strategy. Only he or she has the detailed clinical knowledge of the patient that can give appropriate direction to the consultants. A tentative algorithm for imaging studies in the evaluation of NAM is presented in Figure 1 and emphasizes the functionally more informative radionuclide studies 15,25,26 over the traditional radiocontrast studies.

Abdominal Neoplasms↗
PubMed1989

Magnetic resonance imaging of the kidneys and adrenal glands.

A simple renal cyst will have low signal intensity on T1-weighted SE images with short TE and short TR because of the long T1 values of the cyst fluid. With increasing TE and TR, cysts demonstrate increased signal intensity due to the long T2 values of the cyst fluid. On T1-weighted images a complicated cyst will have higher signal intensity than a simple cyst; it may not be possible to differentiate these complicated cysts from solid masses. MRI seems to be useful in identifying simple cyst fluid and, therefore, has potential in characterization of cystic lesions considered complex by CT or ultrasound. Unfortunately, imaging techniques have not yet been optimized, diagnostic criteria are somewhat vague, and accuracy has not been established in a representative patient population. Solid masses often can be identified and differentiated from simple, uncomplicated cysts on MR images. The inability to differentiate among various types of solid tumors or to separate these from complicated cysts or inflammatory masses remains a limitation. Most lesions are more readily seen on contrast-enhanced CT than on MR images and therefore the role of MRI in the detection and diagnosis of renal cell carcinoma remains limited. Although the high detection rate of renal cell carcinoma is encouraging, CT is still more sensitive than MR in demonstrating solid lesions less than 3 cm in diameter. MRI cannot be used as a screening modality for renal tumors. MRI seems quite helpful in the staging of renal cell carcinoma. Macroscopic extension into the perinephric fat, tumor extension into the renal vein and the inferior vena cava, and macroscopic metastases to other organs are readily seen. Furthermore, differentiation between enlarged nodes and vessels is possible with MRI. Some authors recommended the use of MRI to stage renal cell carcinoma in patients with known contraindication to contrast, prior suboptimal bolus contrast enhanced CT scan, and equivocal CT findings. MRI can replace the inferior vena cavagram in the staging work-up and MR may be superior to CT for planning the surgical approach in Stage IIIA lesions by determining the upper extent of tumor thrombus within the inferior vena cava or the right atrium.(ABSTRACT TRUNCATED AT 400 WORDS)

Adrenal Gland Diseases↗
PubMed1986

Delineation of adrenal in controls and nontumorous adrenal disorders by real-time ultrasonic-scanner.

In 90 control subjects, 90% of the right adrenal and 38% of the left were delineated by sector US scanner. A longitudinal scan from an intercostal space in the mid-axillary line and a right-anterior-transverse scan from the intercostal space were useful in displaying the right adrenal, and an anterior-transverse scan from the epigastrium was also useful in showing the left adrenal. The latter was not as clear as the right. Moreover, a transverse scan from the left flank did not fully display the whole image of the left adrenal. The sizes of both adrenal images were somewhat smaller than those made by computerized tomography (CT), as shown in our previous study. Although the left adrenal in one case of congenital adrenogenital syndrome and those in three cases of Cushing's disease could not be delineated, all of the enlarged right adrenals in these cases were demonstrated by ultrasonic scanning (US). These results suggest the clinical usefulness of US for the detection of affected, nontumorous right adrenals.

Adolescent↗
PubMed1993

Adrenal, pancreatic, and scrotal ultrasound in endocrine disease.

Ultrasound is an ancillary tool in adrenal imaging in adults and a primary tool in children. Intraoperative sonography is the method of choice for pancreatic endocrine tumors. In the scrotum, the benign adrenal rest tumors must be distinguished from the more common malignant mass.

Adrenal Gland Diseases↗