Bochdalek’s flower basket: applied neuroimaging morphometry and variants of choroid plexus in the cerebellopontine angles

Horsburgh, Avril; Kirollos, Ramez; Massoud, Tarik F.

doi:10.1007/s00234-012-1065-1

Cited by 26 publications

(22 citation statements)

References 18 publications

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“…Our case exhibited typical clinical and radiological features of CPP, which clinically occurred in the fourth ventricle, although the pathological findings were not typical. CPPs of the fourth ventricle are thought to be derived from embryonic choroidal remnants or normal choroid plexus protruding into the foramen of Luschka [9] , [10] . Infratentorial CPPs are evenly distributed among all age groups, while 80% of supratentorial CPPs are found in children [11] .…”

Section: Discussionmentioning

confidence: 99%

Posterior fossa choroid plexus papilloma with focal ependymal differentiation in an adult patient: A case report and literature review

Matsushita

Shimono

Goto

et al. 2019

Radiology Case Reports

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Choroid plexus papillomas (CPPs) are rare neoplasms classified as World Health Organization grade I tumors. CPPs containing other tissues have occasionally been documented in the literature. However, few of these previous reports have provided clinical and radiological information. We herein report a case of a posterior fossa CPP with focal ependymal differentiation in a 42-year-old woman who presented with a 6-month history of progressive headache. Preoperative radiological images showed a hypervascular tumor protruding into the left foramen of Luschka with perilesional edema. Gross total resection of the tumor was performed. Histopathological examination revealed that the tumor was composed of papillary structures. Immunohistochemical staining of glial fibrillary acidic protein was focally positive around the capillaries, which was suggestive of “perivascular pseudorosette” formation. Our case showed similar imaging appearances as those of CPP; thus, it seems difficult to distinguish CPP with versus without ependymal differentiation by clinical and radiological features alone. The clinical significance and pathogenesis of ependymal differentiation in CPP remain unclear, and further case reports are required.

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Section: Discussionmentioning

confidence: 99%

Posterior fossa choroid plexus papilloma with focal ependymal differentiation in an adult patient: A case report and literature review

Matsushita

Shimono

Goto

et al. 2019

Radiology Case Reports

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“…The bulbous tufts extended from the fourth ventricular choroid plexus through the foramen of Luschka have been known as the Bochdalek flower basket, which could be identified in 75% on CT and 96% on MR imaging. 17 Calcification of the region was found in 38% on normal imaging anatomy. 17 In pathological states, calcification of CPP was reported in 4.1% on plain skull radiographs and 23.8% on CT examinations in patients of all ages.…”

Section: Discussionmentioning

confidence: 99%

“… 17 Calcification of the region was found in 38% on normal imaging anatomy. 17 In pathological states, calcification of CPP was reported in 4.1% on plain skull radiographs and 23.8% on CT examinations in patients of all ages. 8 9 The feature of the calcification was commonly described as a stippled or patchy configuration that may include some degrees of hemorrhage.…”

Section: Discussionmentioning

confidence: 99%

Densely Calcified Atypical Choroid Plexus Papilloma at the Cerebellopontine Angle in an Adult

Wanibuchi¹,

Margraf²,

Fukushima

2013

J Neurol Surg Rep

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Choroid plexus papilloma is a rare benign tumor accounting for 0.5% of all intracranial tumors. The majority of choroid plexus papillomas occur during the first 2 years of life in the ventricular system. Moreover, dense calcification of the tumor is uncommon. We report an adult case of densely calcified, atypical choroid plexus papilloma that originated from the cerebellopontine angle without connection to the forth ventricle. Because the case involves a rare combination of four features—adult, dense calcification, atypical form, and cerebellopontine angle—each characteristic associated with the choroid plexus papilloma was discussed. The finding of calcification at the cerebellopontine angle in an adult should suggest the possible presence of choroid plexus papilloma.

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“…These tufts of choroid plexus protruding through the foramina of Luschka are referred to as Bochdalek's flower baskets (Blumenkörbchen). Some [6] have also referred to these lateral most extensions as "cornucopia. "…”

Section: Histologymentioning

confidence: 99%

“…A flower basket with prominent bulbous appearance, asymmetry, calcification or heavy enhancement on the imaging may occasionally lead to misdiagnosis of aneurysm or cerebellopontine angle tumor [6].…”

Section: Imagingmentioning

confidence: 99%

Choroid plexus of the fourth ventricle: Review and anatomic study highlighting anatomical variations

Tubbs

Shoja

Aggarwal

et al. 2016

Journal of Clinical Neuroscience

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Relatively few studies have been performed that comment on the morphology of the choroid plexus of the fourth ventricle. With this tissue's importance as a landmark on imaging and during surgical intervention of the fourth ventricle, the authors performed a cadaveric study to better characterize this important structure. The choroid plexus of the fourth ventricle of sixty formalin fixed adult human brains was observed and measured. The horizontal distance from the midline to the lateral most point of the protruding tip of the horizontal limbs was measured. In the majority of the sixty brain specimens, right and left horizontal limbs of the choroid plexus were seen extending from the midline and protruding out of their respective lateral apertures of the fourth ventricle and into the subarachnoid space. However, on 3.3% of sides, we found absence of an extension into the foramen of Luschka and in one specimen, this lack of extension into the foramen of Luschka was bilateral. On two sides, there was discontinuity between the midline choroid plexus and the tuft of choroid just outside the foramen of Luschka. For specimens in which choroid plexus did protrude through the foramen of Luschka (96.7%), these tufts were located anterior to the flocculus and inferolateral to the facial/vestibulocochlear nerve complex and posterosuperior to the glossopharyngeal/vagal/accessory complex. A thorough understanding of the normal and variant anatomy of the fourth ventricular choroid plexus is necessary for those who operate in or interpret imaging of this region.

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Bochdalek’s flower basket: applied neuroimaging morphometry and variants of choroid plexus in the cerebellopontine angles

Cited by 26 publications

References 18 publications

Posterior fossa choroid plexus papilloma with focal ependymal differentiation in an adult patient: A case report and literature review

Posterior fossa choroid plexus papilloma with focal ependymal differentiation in an adult patient: A case report and literature review

Densely Calcified Atypical Choroid Plexus Papilloma at the Cerebellopontine Angle in an Adult

Choroid plexus of the fourth ventricle: Review and anatomic study highlighting anatomical variations

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