Dataset Information

Non-functioning pituitary microadenoma in children and adolescents: Is follow-up with diagnostic imaging necessary?

ABSTRACT:

Purpose

No consensus exists regarding follow-up recommendations for suspected pituitary microadenoma in children. To address this knowledge gap, we investigated the growth potential of pituitary solid and cystic lesions <10 mm in children and evaluated the accuracy of magnetic resonance imaging (MRI) measurements.

Methods

The children included were <18 years at first pituitary MRI and radiologically diagnosed with a non-functioning microadenoma or cyst <10 mm. Lesion size at first and latest MRI as well as all individual MRI examinations were re-evaluated.

Results

In total, 74 children, median age 12 years (range 3-17), had a non-functioning microadenoma, probable microadenoma, or cyst. Of these, 55 underwent repeated MRI (median 3, range 2-7) with a median follow-up of 37 months (range 4-189). None of the pituitary lesions without hormonal disturbances increased significantly during follow-up. Two radiologists agreed that no lesion could be identified in 38/269 (14%) MRI examinations, and in 51/231 (22%) they disagreed about lesion location. In 34/460 (7%) MRI measurements size differed >2 mm, which had been considered significant progression.

Conclusion

Non-functioning pituitary microadenoma in children has small size variations, often below the spatial resolution of the scanners. We suggest lesions <4 mm only for clinical follow-up, lesions 4-6 mm for MRI after 2 years and ≥7 mm MRI after 1 and 3 years, with clinical follow-up in between. If no progression, further MRI should only be performed after new clinical symptoms or hormonal disturbances.

SUBMITTER: Borghammar C

PROVIDER: S-EPMC9813011 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Non-functioning pituitary microadenoma in children and adolescents: Is follow-up with diagnostic imaging necessary?

Borghammar Camilla C Tamaddon Ashkan A Erfurth Eva-Marie EM Sundgren Pia C PC Siesjö Peter P Elfving Maria M Nilsson Margareta M

Endocrine 20221017 1

<h4>Purpose</h4>No consensus exists regarding follow-up recommendations for suspected pituitary microadenoma in children. To address this knowledge gap, we investigated the growth potential of pituitary solid and cystic lesions <10 mm in children and evaluated the accuracy of magnetic resonance imaging (MRI) measurements.<h4>Methods</h4>The children included were <18 years at first pituitary MRI and radiologically diagnosed with a non-functioning microadenoma or cyst <10 mm. Lesion size at first ...[more]

PMID: 36251115

Similar Datasets

Project description:Background and purposeAlthough resection of a tumor by trans-sphenoidal surgery is considered the criterion standard for successful surgical treatment of functional pituitary microadenoma, MR imaging occasionally fails to visualize and identify the tumor and supplementary imaging modalities are necessary. We tested the possibility of dynamic contrast-enhanced multisection CT of the pituitary gland accompanying image reconstruction of contrast agent dynamics to identify the localizations of microadenomas and compared the diagnostic performance with conventional pituitary-targeted MR imaging.Materials and methodsTwenty-eight patients with surgically confirmed functional pituitary microadenomas (including growth hormone-, adrenocorticotropic hormone-, and prolactin-secreting adenomas) who underwent pituitary-targeted dynamic contrast-enhanced multisection CT were retrospectively investigated. We undertook image reconstruction of the dynamics of the contrast agent around the pituitary gland in a voxelwise manner, visualizing any abnormality and enabling qualification of contrast dynamics within the tumor.ResultsFifteen cases were correctly diagnosed by MR imaging, while dynamic contrast-enhanced multisection CT correctly diagnosed 26 cases. The accuracy of localization was markedly better for adrenocorticotropic hormone-secreting microadenomas, increasing from 32% on MR imaging to 85% by dynamic contrast-enhanced multisection CT. Compared with the normal pituitary gland, adrenocorticotropic hormone-secreting adenoma showed the least difference in contrast enhancement of the different functional microadenomas. Images acquired at 45-60 seconds after contrast agent injection showed the largest difference in contrast enhancement between an adenoma and the normal pituitary gland.ConclusionsDynamic contrast-enhanced multisection CT combined with image reconstruction of the contrast-enhanced dynamics holds promise in detecting MR imaging-occult pituitary microadenomas.

Project description:A long-term follow-up was made of 12 elbows operated upon between 1971 and 1986, with more than 20 years' follow-up, in nine males and three females, age at the time of surgery between 10 and 19 years . Eight right and four left elbows were involved, and there were three aetiological causes. Seven cases were sequelae of elbow fractures, of which five were supracondylar and two were of the olecranon. There were four cases of juvenile rheumatoid arthritis and one was post-osteomyelitis. The surgical technique involved a modification made by Vainio of MacAusland's technique (wider resection of the osseous ends and total covering of the bloody surfaces) [5, 9]. After extirpating the tissue blocking the joint, we proceeded to remodel the distal humerus in a wide V shape, the proximal end of the ulnar and, if necessary, the radial head. The proximal end of the ulna was sectioned transversely. All surgery was carried out sub-periosteally. Then, an interposition material was placed in one piece and sutured over the distal humerus and cut ends of the ulna and radius. The articular ends were brought together, and the capsule was closed using equidistant stitching, as is the skin. A small compression bandage was applied, and the arm was immobilised with a collar and cuff sling, with the forearm flexed to slightly less than a right angle. In ten cases, the interposition material was fascia lata grafts; in one case, skin graft and in one case, Gelfoam graft. Early rehabilitation began when post-operative pain allowed. Follow-up ranged from 25 to 32 years. Pre-surgical movement ranged between 90 degrees and 120 degrees of flexion and 30 degrees and 90 degrees of extension. Post-operative range varied between 90 degrees and 150 degrees of flexion. The five cases of full pre-operative ankylosis achieved between 90 degrees and 150 degrees of flexion and between 0 degrees and 70 degrees of extension. The total range of motion at the latest follow-up varied from 35 degrees to 150 degrees . Patients who were able to perform flexion of 120 degrees or more were considered to be excellent, those between 90 degrees and 119 degrees were graded good, from 60 degrees to 89 degrees fair and those 59 degrees or less poor. The ability to attain a hand to mouth position requires a mobility of 120 degrees . We obtained excellent results in two patients, good results in three, fair results in four and poor results in three. The fascia lata was used in 83% of cases, obtaining excellent to good results in five patients (41%). Elbow interposition arthroplasty has its indications in children and adolescents where arthrodesis or total joint replacement cannot be performed.

Project description:Gastrointestinal (GI) cytomegalovirus (CMV) disease is a major cause of morbidity and mortality in immunocompromised patients. Diagnosis of GI CMV disease mostly relies on endoscopy examination and histopathologic findings. There are limited data on the need for follow-up endoscopy with histopathologic examination in patients with upper gastrointestinal (UGI) CMV disease. All adult patients with confirmed and probable UGI CMV disease at a tertiary hospital over a 16-year period whose follow-up endoscopy was available were enrolled. The patients were classified as endoscopic responders if they showed complete or partial improvement on follow-up endoscopy, and as endoscopic nonresponders if there was no improvement or worsening. CMV tissue clearance was defined as absence of any visible CMV inclusion bodies, negative CMV immunohistochemistry and negative CMV polymerase chain reaction in follow-up biopsy tissues. During the study period, 77 patients with UGI CMV disease were analyzed. The median time to follow-up endoscopy was 19 days (interquartile range, 14-27). Of these 77 patients, 52 (68%) were classified as responders, and the remaining 25 (32%) as nonresponders. GI bleeding was more common in the nonresponders than the responders (36% vs 12%, respectively; P = 0.02). There was no significant difference in CMV tissue clearance between the responders and nonresponders (56% vs 69%, respectively; P = 0.38), median durations of treatment (20 days vs 21 days, respectively; P = 0.48), and relapse rates (10% vs 8%, respectively; P > 0.99). Multivariate analysis showed that the only independent predictive factor for relapse of CMV antigenemia or CMV GI disease was multiorgan CMV disease (odds ratio = 12.4, 95% confidence interval 1.6-97.9; P = 0.02). Endoscopic responses were obtained in about two-thirds of patients with UGI CMV disease 2 or 3 weeks after antiviral therapy. However, these follow-up endoscopic findings neither reflected CMV tissue clearance nor predicted disease relapse. These findings suggest that the routine follow-up endoscopy may not be warranted in patients with UGI CMV disease.

Dataset Information

Non-functioning pituitary microadenoma in children and adolescents: Is follow-up with diagnostic imaging necessary?

Purpose

Methods

Results

Conclusion

Publications

Non-functioning pituitary microadenoma in children and adolescents: Is follow-up with diagnostic imaging necessary?

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets