CT and MR imaging of craniopharyngioma

Tsuda, Masashi; Takahashi, Syouki; Higano, Shuichi; Kurihara, Noriko; Ikeda, Hidetoshi; Sakamoto, Kiyohiko

doi:10.1007/s003300050184

Cited by 42 publications

(12 citation statements)

References 12 publications

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“…10,11 CT scans play an important role in identifying calcifications. Typical imaging features include a well-defined cystic lesion with calcification in the suprasellar region; however, a cystic lesion is may be less common for ectopic craniopharyngiomas.…”

Section: Discussionmentioning

confidence: 99%

Isolated cerebellopontine angle craniopharyngioma

Yan

Tang

et al. 2009

Journal of Clinical Neuroscience

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Section: Discussionmentioning

confidence: 99%

Isolated cerebellopontine angle craniopharyngioma

Yan

Tang

et al. 2009

Journal of Clinical Neuroscience

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“…With the exception of some authors working with IR-T1 [9] and magnetization transfer [6] pulse sequences, most studies have used conventional sequences, including rapid acquisition with relaxation enhancement (RARE)-derived, SE-T1, and SE-T2 sequences [4,5,14], to characterize craniopharyngiomas; however, with these T1-and T2-weighted images it is not possible to accurately observe the different cystic signal intensities patterns and to, therefore, differentiate proteic-like from fatty or hematic-like patterns. The IR-T1-weighted images are very heavily T1-weighted, whereas SE-T1-weighted images are mildly T1-weighted with large PD and T2-weighted influence.…”

Section: Discussionmentioning

confidence: 99%

“…In order to recognize the different contents within craniopharyngiomas, most authors have used SE T1-and T2-weighted sequences [4,5], whereas some have used unusual pulse sequences such as magnetization transfer [6]; however, these sequences on their own do not allow a reliable tissue characterization in every tumor. Other less used sequences, such as T1-weighted IR and inphase and opposed-phase GRE, will probably expand the identification of different semiological patterns in these tumors.…”

Section: Introductionmentioning

confidence: 99%

Craniopharyngiomas: identification of different semiological patterns with MRI

Mollá¹,

Martí‐Bonmatí

Revert

et al. 2001

Eur Radiol

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Our objectives were to analyze different semiological patterns in craniopharyngiomas studied with CT and MR sequences. Retrospective study of 26 patients with confirmed craniopharyngiomas. All cases were examined with CT and MR imaging using a variety of pulse sequences (spin echo, inversion recovery, gradient echo in-phase and opposed-phase). The analyzed component patterns were classified as solid, calcium, proteic-like, cerebrospinal fluid (CSF)-like, hematic-like, and fatty patterns. The different patterns were related by means of contingency tables and the Fisher exact test and also to epidemiological findings and tumor size. A solid pole was detected in all patients, whereas a cystic component was present in 92.3% of the cases. Calcification was visualized in 65.3%, proteic-like in 53.8%, CSF-like in 23%, hematic-like in 19.2%, and fatty component in 15.3%. There were no statistical associations between patterns, with the exception that in no case did CSF-like and proteic-like patterns coexist ( P=0.004). Tumor size was related to components. Hematic-like (17.0+/-18.9 vs 3.9+/-2.6 mm, non-present vs present) and CSF-like (16.9+/-19.6 vs 6.5+/-4.0 mm) patterns were observed most frequently in smaller tumors, whereas larger tumors usually had proteic-like (5.9+/-5.4 vs 21.1+/-21.0 mm) and calcified (4.6+/-1.9 vs 19.1+/-19.9 mm) patterns. Computed tomography and a combination of different MR images frequently allow the detection of different semiological patterns in these tumors. Semiological patterns were correlated only to tumor size.

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“…In autopsy series, pituitary lesions turn out to be non-functioning adenomas in about 50%, the other 50% mainly being hormonal active adenomas (2,29). Moreover, in the vast majority of patients, MRI can with adequate accuracy differentiate between pituitary adenomas and craniopharyngiomas (30,31) and between pituitary adenoma and pituitary hypertrophy (32). A second limitation of this study might be the definition of growth.…”

Section: Non-functioning Pituitary Macroadenomasmentioning

confidence: 90%

The natural course of non-functioning pituitary macroadenomas

Dekkers¹,

Hammer²,

Keizer³

et al. 2007

eur j endocrinol

167

129

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Objective: The natural history of non-functioning pituitary macroadenomas (NFMA) has not been completely elucidated. Therefore, we evaluated pituitary function, visual fields, and tumor size during long-term follow-up of non-operated patients with NFMA. Design: Follow-up study. Patients: Twenty-eight patients (age 55G3 years) with NFMA, not operated after initial diagnosis, were included. Results: Initial presentation was pituitary insufficiency in 44%, visual field defects in 14%, apoplexy in 14%, and chronic headache in 7% of the patients. The duration of follow-up was 85G13 months. Radiological evidence of tumor growth was observed in 14 out of 28 patients (50%) after duration of follow-up of 118G24 months. Six patients (21%) were operated, because tumor growth was accompanied by visual field defects. Visual impairments improved in all the cases after transsphenoidal surgery. Spontaneous reduction in tumor volume was observed in eight patients (29%). No independent predictors for increase or decrease in tumor volume could be found by regression analysis. Conclusion: Observation alone is a safe alternative for transsphenoidal surgery in selected NFMA patients, without the risk of irreversibly compromising visual function. European Journal of Endocrinology 156 217-224

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CT and MR imaging of craniopharyngioma

Cited by 42 publications

References 12 publications

Isolated cerebellopontine angle craniopharyngioma

Isolated cerebellopontine angle craniopharyngioma

Craniopharyngiomas: identification of different semiological patterns with MRI

The natural course of non-functioning pituitary macroadenomas

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