scholarly journals A Rare Third Ventricular Dermoid Cyst in an Adult With Imaging Characteristics Consistent With a Colloid Cyst

Cureus ◽  
2022 ◽  
Author(s):  
Cody Woodhouse ◽  
Khaled Abdel Aziz ◽  
Dorian M Kusyk ◽  
Kristen Stabingas ◽  
Feifan Chen ◽  
...  
Keyword(s):  
Dermoid Cyst ◽  
Colloid Cyst ◽  
Imaging Characteristics

scholarly journals Suprasellar dermoid cyst associated with colloid cyst of the third ventricle: Disordered embryogenesis or a mere coincidence?

2013 ◽  
Vol 04 (03) ◽  
pp. 345-347 ◽  
Author(s):  
Nilesh Kurwale ◽  
Rajinder Kumar ◽  
Sharma C Mehar ◽  
Bhavani Shankar Sharma
Keyword(s):  
Dermoid Cyst ◽  
Third Ventricle ◽  
Early Adulthood ◽  
Colloid Cyst ◽  
The Third ◽  
Congenital Lesions ◽  
Colloid Cysts

ABSTRACTIntracranial dermoid cyst and colloid cysts of the third ventricle are rare benign congenital lesions of early adulthood. Both lesions are thought to be congenital in origin however association is rare. Only one case of this association has been reported. We report a 22-year-old male with suprasellar dermoid cyst and colloid cyst of the third ventricle presenting simultaneously. Embryogenesis of this association has been discussed.

Analysis of the growth pattern of a dermoid cyst

2014 ◽  
Vol 14 (6) ◽  
pp. 621-625 ◽  
Author(s):  
Andrew A. Fanous ◽  
Puneet Gupta ◽  
Veetai Li
Keyword(s):  
Dermoid Cyst ◽  
Growth Pattern ◽  
Linear Growth ◽  
Pediatric Population ◽  
Mass Effect ◽  
Imaging Studies ◽  
Unique Case ◽  
Imaging Characteristics ◽  
First Time ◽  
Prompt Diagnosis

Dermoid cysts are rare lesions of the CNS with a slow rate of growth. For this reason, they are rarely discovered during infancy. Although benign, these cysts may be associated with devastating complications due to mass effect or meningitis. The discovery of completely asymptomatic dermoid cysts in the pediatric population is exceedingly rare; however, correct and prompt diagnosis is crucial for early surgical treatment to minimize morbidity and mortality. The authors report the unique case of a posterior fossa dermoid cyst discovered in a 5-month-old girl and monitored for 2.5 years with serial imaging studies before performing a resection. The imaging characteristics of dermoid cysts are reviewed, and the challenges associated with the radiographic diagnosis of such lesions are discussed. Analyzing the growth of this particular cyst on MRI allowed comment, for the first time to the authors' knowledge, regarding the growth rate of dermoid cysts. Unlike true tumors, which grow in an exponential pattern, the dermoid cyst in the reported case exhibited a linear growth pattern. The increase in volume followed the classic appearance of a cuboid sequence, which is also consistent with linear growth in all 3 dimensions.

The High Resolution Scanning Transmission Electron Microscope

1974 ◽  
Vol 32 ◽  
pp. 316-317
Author(s):  
A. V. Crewe
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
High Vacuum ◽  
Scanning Transmission Electron Microscope ◽  
Ultra High Vacuum ◽  
Resolving Power ◽  
Imaging Characteristics ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
The Moment

The high resolution STEM is now a fact of life. I think that we have, in the last few years, demonstrated that this instrument is capable of the same resolving power as a CEM but is sufficiently different in its imaging characteristics to offer some real advantages.It seems possible to prove in a quite general way that only a field emission source can give adequate intensity for the highest resolution^ and at the moment this means operating at ultra high vacuum levels. Our experience, however, is that neither the source nor the vacuum are difficult to manage and indeed are simpler than many other systems and substantially trouble-free.

Letter: Dermoid cyst and fistula of the nose

1974 ◽  
Vol 110 (1) ◽  
pp. 129c-129
Author(s):  
G. C. Szalay
Keyword(s):  
Dermoid Cyst

Dermoid Cyst of the Cecum

1956 ◽  
Vol 31 (4) ◽  
pp. 447-450 ◽  
Author(s):  
John M. Gowdy
Keyword(s):  
Dermoid Cyst

Prevotella melaninogenica Meningitis and Abscess: A Complication of the Removal of a Midline Dermoid Cyst

2018 ◽  
Vol 15 (03) ◽  
pp. 152-154
Author(s):  
Megan B. Garcia ◽  
Anjali N. Kunz
Keyword(s):  
Dermoid Cyst ◽  
Bacterial Infections ◽  
Surgical Excision ◽  
Sinus Tract ◽  
Neural Tube Closure ◽  
Intracranial Extension ◽  
Dermal Sinus ◽  
Oral Flora ◽  
Prevotella Melaninogenica ◽  
Dermal Sinus Tract

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.

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