An Aberrant Line on CT Head: The Mendosal Suture

Ruparelia, Jigish; Patidar, Rajnish K; Gosal, Jaskaran Singh; Garg, Mayank; Bhaskar, Suryanarayanan; Jha, Deepak Kumar

doi:10.1055/s-0040-1713304

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…The mendosal suture separates the interparietal bone from the supraoccipital bone in utero and typically closes prior to delivery or within the first couple of days of life [3]. If it fails to fuse, the result is an outward convex bulge of the occipital bone that produces the characteristic head shape of bathrocephaly [4]. Bathrocephaly is most commonly a benign isolated finding and is not associated with any underlying skull or brain pathology; however, there are few case reports suggesting its association with other forms of craniosynostosis [2].…”

Section: Discussionmentioning

confidence: 99%

A Variation in Newborn Head Shape

2023

Arch Pediatr

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There are many variations in newborn head shape after delivery, some of which are suggestive of underlying abnormalities warranting further evaluation while others are normal variations that will resolve with time. It is imperative that clinicians can distinguish among physical exam findings of the newborn head to guide management and decision making. The focus of this paper is to discuss a rare, but benign, variant of the newborn head shape known as bathrocephaly.

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Section: Discussionmentioning

confidence: 99%

A Variation in Newborn Head Shape

2023

Arch Pediatr

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“…[4][5][6]10,[12][13][14][15][16][17] Lastly, an open mendosal suture can be confused with a lambdoid suture during a retromastoid suboccipital approach to the brain, resulting in an errant surgical approach. 18 The purpose of this study was to (1) characterize closure of the mendosal suture among infants younger than 18 months of age; (2) determine if prolonged patency of the suture is associated with increased occipital projection (ie, bathrocephaly); and (3) elucidate the normal timing and pattern of mendosal suture fusion.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Mendosal Suture Patency in Infants Up to the Age of 18 Months

Escandón

Duarte-Bateman

Mantilla-Rivas

et al. 2022

Plastic and Reconstructive Surgery - Global Open

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Background: The mendosal suture joins the interparietal and inferior portions of the occipital bone. Persistent patency of this suture can result in bathrocephaly, an abnormal occipital projection. This study aims to determine normal temporal fusion of the mendosal suture and cranial shape of the patients with persistent suture patency. Methods: A retrospective review of head CT scans in patients aged 0–18 months who presented to the emergency department between 2010 and 2020 was completed. Presence and patency of the mendosal suture were assessed. Cranial shape analysis was conducted in the cases that presented with 100% suture patency and age-matched controls. An exponential regression model was used to forecast the timing of suture fusion. Results: In total, 378 patients met inclusion criteria. Median age at imaging was 6.8 months (IQR 2.9, 11.6). Initiation of mendosal suture fusion was observed as early as 4 days of age and was completed in all instances except one by age 18 months. Most patients had either a complete or partial suture fusion (66.7% versus 30.7%, respectively), and 2.6% of patients had 100% suture patency. Cranial shape analysis demonstrated increased occipital projection in patients with 100% suture patency compared with their controls. Exponential regression model suggested that the mendosal suture closure begins prenatally and typically progresses to full closure at the age of 6 months. Conclusions: Prevalence of a patent mendosal suture was 2.6% overall. Mendosal suture fusion initiates in-utero and completes ex-utero within the first 18 months of life. Delayed closure results in greater occipital projection.

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“…plagiocefalia posterior[3,5]. Além da escassez de literatura sobre a sutura mendosal, seu relato na população brasileira é quase desconhecido[1,3,5].…”

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