Lipomas of quadrigeminal cistern: report of 12 cases with clinic and radiologic features

Yılmaz, Muhittin; Egemen, Emrah; Tekiner, Ayhan

doi:10.5137/1019-5149.jtn.8694-13.1

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…MRI follow-is not recommended, as majority of incidental lipomas are stable over time (28,29). In contrast to our patient, in all previous published cases, the lipomas were described as separate from the neurohypophysis, and did not create interpretational difficulties.…”

Section: Discussioncontrasting

confidence: 66%

“…Anyway, evidence for a causative correlation is not currently available, and conservative management has been demonstrated the most appropriate approach in asymptomatic intracranial lipomas. Furthermore, MRI follow-is not recommended, as majority of incidental lipomas are stable over time ( 28 , 29 ). In contrast to our patient, in all previous published cases, the lipomas were described as separate from the neurohypophysis, and did not create interpretational difficulties.…”

Section: Discussionmentioning

confidence: 99%

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Case Report: Lipoma of the Tuber Cinereum Mimicking a Pituitary Gland Abnormality in a Girl With Central Precocious Puberty

et al. 2021

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IntroductionMagnetic Resonance Imaging (MRI) is the best approach to investigate the hypothalamic-pituitary region in children with central precocious puberty (CPP). Routine scanning is controversial in girls aged 6-8 year, due to the overwhelming prevalence of idiopathic forms and unrelated incidentalomas. Cerebral lipomas are rare and accidental findings, not usually expected in CPP. We report a girl with CPP and an unusually shaped posterior pituitary gland on SE-T1w sequences.Case DescriptionA 7.3-year-old female was referred for breast development started at age 7. Her past medical history and physical examination were unremarkable, apart from the Tanner stage 2 breast. X-ray of the left-hand revealed a bone age 2-years ahead of her chronological age, projecting her adult height prognosis below the mid parental height. LHRH test and pelvic ultrasound were suggestive for CPP. Routine brain MRI sequences, SE T1w and TSE T2w, showed the posterior pituitary bright spot increased in size and stretched upward. The finding was considered as an anatomical variant, in an otherwise normal brain imaging. Patient was started on treatment with GnRH analogue. At a thorough revaluation, imaging overlap with adipose tissue was suspected and a new MRI scan with 3D-fat-suppression T1w-VIBE sequences demonstrated a lipoma of the tuber cinereum, bordering a perfectly normal neurohypophysis. 3D-T2w-SPACE sequences, acquired at first MRI scan, would have provided a more correct interpretation if rightly considered.ConclusionThis is the first evidence, to our knowledge, of a cerebral lipoma mimicking pituitary gland abnormalities. Our experience highlights the importance of considering suprasellar lipomas in the MRI investigation of children with CPP, despite their rarity, should the T1w sequences show an unexpected pituitary shape. 3D-T2w SPACE sequences could be integrated into standard ones, especially when performing MRI routinely, to avoid potential misinterpretations.

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Section: Discussioncontrasting

confidence: 66%

Section: Discussionmentioning

confidence: 99%

Case Report: Lipoma of the Tuber Cinereum Mimicking a Pituitary Gland Abnormality in a Girl With Central Precocious Puberty

et al. 2021

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“…At present, with the use of prenatal ultrasound control, it is more frequent to detect these cases from 26 weeks of gestation 1,5,9,10,11 . The clinical diagnosis is made from the CT where the calcifications can be observed, mainly in the tubularnodular variety 1,5,6,7,8,9,10,11,12 , Magnetic resonance imaging is the test of choice not only for the characterization and extension of lipoma but also for the dysgenesis or agenesis of the corpus callosum; masses follow the signal intensity of fat in all sequences, appearing T1 and T2 with hyperintensity, however the fat suppression secuency FAT-SAT allows identify fat suppression sequence [5][6][7] . These two imaging techniques were performed in the exposed case 13,14,15 .…”

Section: Discussionmentioning

confidence: 99%

“…There are few differential diagnoses, including dermoid cysts and teratoma 15 . For the treatment of such anomalies, surgical procedures are not recommended, except when there is a hydrocephalus [5][6][7] , the reasons are due to the high vascularity, adhesion and infiltration of the capsule to the adjacent tissues, their null growth 1,3,5,7,8,9,10,11,12,14 , most of the literature reviews recommend symptomatic treatment with anticonvulsants in patients with epilepsy such as the patient treated in the case exposed, anti-migraine prophylaxis and multidisciplinary stimulation in patients with Maturation delay learning points…”

Section: Discussionmentioning

confidence: 99%

Lipoma of the callosum corpus: A case report and literature review

Charry¹,

Calle‐Toro

Serrano

et al. 2021

revchilneurocir

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Introducción: El lipoma intracraneal es una malformación congénita muy rara, que representa menos del 0,1% de los tumores intracraneales; son causadas por la persistencia anormal de un foco de meninges primitivas, que de una forma poco clara hasta el momento, se induce a diferenciarse en adipocitos. Presentación del caso: Este artículo reporta el caso de una mujer de 27 años que consultó al servicio de urgencias de un Hospital Universitario de Colombia por clínica de cefalea de larga evolución asociada a un episodio tónico clónico generalizado. En la exploración neurológica no presento signos de focalización o alteraciones, la tomografía computarizada (TC) evidenció una lesión hipodensa en la región interhemisférica, sospechando lipoma del cuerpo calloso (CC), que fue confirmado por espectroscopia de resonancia magnética nuclear (RMN). Teniendo en cuenta la ubicación de la lesión y posible patología, se inició tratamiento médico, se observó que la paciente permaneció estable durante los 6 meses de control. A continuación se realiza, la revisión de la literatura sobre Lipoma del cuerpo calloso. Conclusiones: El lipoma del cuerpo calloso es una enfermedad benigna rara, cuyo manejo quirúrgico es infrecuente y el control farmacológico es favorable, como se describe en este caso de una mujer de 27 años diagnosticada con esta patología.

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