Suprasellar cistern beyond the adenomas – A focused review

Congress:

ECR 2019

Poster Number:

C-3308

Type:

Educational Exhibit

Keywords:

Education and training, Diagnostic procedure, MR, CT, Neuroradiology brain, CNS

Authors:

T. Oliveira¹, M. C. Calegari², V. Trindade¹, G. Gomes¹, L. de Souza¹, G. D. D. Souza³; ¹Brasilia/BR, ²Brasília, DF/BR, ³Brasília, Di/BR

DOI:

10.26044/ecr2019/C-3308

DOI-Link:

https://dx.doi.org/10.26044/ecr2019/C-3308

Fig. 1: Pituitary macroadenoma. Sagittal T1 (A), sagittal T1 post contrast (B), coronal...

Fig. 2: Large expansive pituitary gland lesion presenting avid homogeneous contrast...

Fig. 3: MRI of intrasellar and suprasellar mass demonstrating heterogeneous contrast...

Fig. 4: Invasive growth of a pituitary macroadenoma. Up to 35% of pituitary adenomas...

Learning objectives

To demonstrate, through magnetic resonance imaging (MRI), the main intracranial tumors and pathologies that affect the suprasellar cistern, highlighting the principal findings.

Background

The suprasellar cistern is a cerebrospinal fluid-filled cistern located above the sella turcica region, under the hypothalamus and between the uncusof the temporal lobes. It represents a passageway for complex neurovascular structures, such as: optic chiasm, infundibular stalk and cerebrovascular circle of Willis. At least 30 different lesions may occur near or in pituitary gland, originating from the gland itself or adjacent structures, including cavernous sinuses and its contents, arteries, cranial nerves, meninges, cerebrospinal fluid compartments and brain parenchyma. The investigation of intrasellar and suprasellar...

Findings and procedure details

In our study, we evaluated a great number of suprasellar injuries. In most of them, the anatomic approach was followed, however many lesions affect more than one compartment, making difficult to precise its origin. For those cases, the identification of normal structures, such as the pituitary gland and its relationship with the injury helps to determine the etiology. 1 – Adenomas (Fig. 1-4): Pituitary adenomas are adenohypophysal tumors composed of secretory cells that produce pituitary hormones. Adenomas comprise the majority (80%) of the lesions. A...

Conclusion

MRI provides detailed information about the contents of sellar and suprasellar regions and it is the best imaging modality for preoperative and postoperative evaluation. The knowledge of the anatomy and main findings of principal injuries, along with clinical data, aids the correct diagnosis.

Personal information

Dra. Thaís Figueiredo Teodoro de Oliveira Resident in training. Department of Radiology, Instituto Hospital de Base do Distrito Federal. SMHS - Área Especial - Quadra 101 - Asa Sul, Brasília - DF, 70330-150. E-mail: [email protected] Gleim de Souza Dias MD, Department of Radiology, Hospital Regional da Asa Norte -SMHN - Área Especial - Quadra 101 - Asa Norte, Brasília - DF, 70710-905 /Brasília 2019. E-mail: [email protected]

References

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