Chapter 7 Dermal Sinus Tracts

Keyword(s):  
Author(s):  
Nicole I Wolf ◽  
Inga Harting ◽  
Marius Hartmann ◽  
Alfred Aschoff ◽  
Clemens Sommer ◽  
...  

2018 ◽  
Vol 15 (03) ◽  
pp. 152-154
Author(s):  
Megan B. Garcia ◽  
Anjali N. Kunz

Abstract Prevotella species are gram-negative anaerobic commensal bacteria of the oropharynx, which frequently cause periodontal disease but are otherwise rarely implicated in serious bacterial infections. Cranial dermoid cysts are benign neoplasms that grow along the planes of the embryonic neural tube closure. In infants, they most commonly present in frontal locations, including periorbital, nasal, and within the anterior fontanelle. Although dermoid cysts are slow growing, usually uncomplicated, and easily treated definitively with surgical excision, cranial cysts located on the midline are associated with a higher risk for persistent dermal sinus tract with intracranial extension of the tumor. We describe a case of a 10-month-old male patient with an occipital midline dermoid cyst with intracranial extension, infected with Prevotella melaninogenica, and complicated by intracranial abscess formation and meningitis.This case highlights two unusual disease entities: the uncommon occipital location of a dermoid cyst, and complications of that cyst caused by a serious bacterial infection with a normal oral flora. We discuss the recommendation for neuroimaging prior to surgical excision of a midline dermoid cyst, given the risk for dermal sinus tract with intracranial communication. We also discuss potential mechanisms for bacterial inoculation of this cyst with Prevotella melaninogenica. This pathogen has not previously been reported as a complication of dermoid cysts.


Consultant ◽  
2020 ◽  
Author(s):  
Aviva Jaari Whelan ◽  
James N. Crooks
Keyword(s):  

2020 ◽  
pp. 1-8
Author(s):  
Takato Morioka ◽  
Nobuya Murakami ◽  
Masako Ichiyama ◽  
Takeshi Kusuda ◽  
Satoshi O. Suzuki

<b><i>Introduction:</i></b> The embryogenesis of limited dorsal myeloschisis (LDM) likely involves impaired disjunction between the cutaneous and neural ectoderms during primary neurulation. Because LDM and congenital dermal sinus (CDS) have a shared origin in this regard, CDS elements can be found in the LDM stalk. Retained medullary cord (RMC) is a closed spinal dysraphism involving a robust, elongated, cord-like structure extending from the conus medullaris to the dural cul-de-sac. Because the RMC is assumed to be caused by impaired secondary neurulation, concurrent RMC and CDS cannot be explained embryologically. In the present article, we report a case in which CDS elements were noted in each tethering stalk of a coexisting LDM and RMC. <b><i>Case Presentation:</i></b> A 2.5-month-old boy with left clubfoot and frequent urinary and fecal leakage had 2 tethering tracts. The upper tract, which ran from the thoracic tail-like cutaneous appendage, had CDS elements in the extradural stalk and a tiny dermoid cyst in the intradural stalk immediately after the dural entry. In the lower tract, which ran from the lumbosacral dimple, the CDS as an extradural stalk continued to the RMC at the dural cul-de-sac. Both stalks were entirely resected through skip laminotomy/laminectomy at 1 stage to untether the cord and resect the CDS elements. <b><i>Conclusion:</i></b> Surgeons should be aware that CDS elements, in addition to LDM, may coexist with RMC that extends out to the extradural space.


2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Sakina Rashid ◽  
Grace Kinabo ◽  
Marissa Kellogg ◽  
William P. Howlett ◽  
Marieke C. J. Dekker

Neural tube defects result from failure of neural tube fusion during early embryogenesis, the fourth week after conception. The spectrum of severity is not uniform across the various forms of this congenital anomaly as certain presentations are not compatible with extrauterine life (anencephaly) while, on the other hand, other defects may remain undiagnosed as they are entirely asymptomatic (occult spina bifida). We report a child with previously normal neurological development, a devastating clinical course following superinfection of a subtle spina bifida defect which resulted in a flaccid paralysis below the level of the lesion and permanent neurological deficits following resolution of the acute infection and a back closure surgery.


2001 ◽  
Vol 17 (8) ◽  
pp. 491-493 ◽  
Author(s):  
Jung-Kil Lee ◽  
Jae-Hyoo Kim ◽  
Jae-Sung Kim ◽  
Tae-Sun Kim ◽  
Shin Jung ◽  
...  
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2015 ◽  
Vol 25 (2) ◽  
pp. 238-241
Author(s):  
Mesut Mete ◽  
Tamay Simsek ◽  
Ahmet S. Umur ◽  
Mehmet Selçuki ◽  
Nurcan Umur ◽  
...  

2006 ◽  
Vol 23 (5) ◽  
pp. 569-571 ◽  
Author(s):  
R. Shane Tubbs ◽  
Philip K. Frykman ◽  
Carroll M. Harmon ◽  
W. Jerry Oakes ◽  
John C. Wellons

2002 ◽  
Vol 58 (3-4) ◽  
pp. 266-270 ◽  
Author(s):  
Ali Akhaddar ◽  
Mohamed Jiddane ◽  
Noureddine Chakir ◽  
Rachid El Hassani ◽  
Brahim Moustarchid ◽  
...  
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