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Epidermoid cyst

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https://www.readbyqxmd.com/read/29143062/-intracranial-cystic-lesions
#1
REVIEW
F Ahlhelm, K Shariat, S Götschi, S Ulmer
CLINICAL PROBLEM: Intracerebral cysts are common findings in imaging of the neurocranium and are not always clinically significant. The pathological spectrum of intracerebral cysts is, however, very broad and in addition to incidental findings includes developmental disorders, malformation tumors, primary and secondary neoplasms and infectious etiologies, such as cerebral abscess formation, cysticercosis or residuals after congenital cytomegalovirus infections. Intracerebral cystic defects may be caused by inflammatory central nervous system (CNS) diseases, such as multiple sclerosis as well as by mitochondriopathies, leukodystrophy, electrolyte disturbances or osmotic demyelination syndrome or brain infarctions, e...
November 15, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29135804/surgical-management-of-tumors-involving-meckel-s-cave-and-cavernous-sinus-role-of-an-extended-middle-fossa-and-lateral-sphenoidectomy-approach
#2
Daniel Q Sun, Arnold H Menezes, Matthew A Howard, Bruce J Gantz, David M Hasan, Marlan R Hansen
OBJECTIVE: To study the indications and outcomes of lateral sphenoidectomy as part of a combined skull base approach in the treatment of tumors involving Meckel's cave (MC) and cavernous sinus (CS). STUDY DESIGN: Retrospective patient series. SETTING: Tertiary referral center. PATIENTS: Twenty-two consecutive patients (mean age: 45 yr, range: 16-76) who underwent transzygomatic, extended middle fossa approaches for tumors involving MC and CS...
November 13, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29131467/central-mucoepidermoid-carcinoma-arising-from-glandular-odontogenic-cyst-confirmed-by-analysis-of-maml2-rearrangement-a-case-report
#3
Atsuhiro Nagasaki, Ikuko Ogawa, Yukiko Sato, Kengo Takeuchi, Masae Kitagawa, Toshinori Ando, Shinnichi Sakamoto, Madhu Shrestha, Kaori Uchisako, Koichi Koizumi, Shigeaki Toratani, Masaru Konishi, Takashi Takata
Central mucoepidermoid carcinoma (MEC) poses a diagnostic challenge because of its rarity and histological overlap with glandular odontogenic cyst (GOC). In MEC of both salivary glands and jaws, MAML2 arrangement has been well known as the specific gene alteration. We report a case of central MEC arising from GOC diagnosed by MAML2 fusion gene. A 57-year-old male presented a multilocular cystic lesion in left molar region of the mandible. Histopathologically, multiple cysts lined by thin cuboidal or non-keratinized squamous epithelium with small duct-like structures, mucous cells and ciliated cells were present...
November 13, 2017: Pathology International
https://www.readbyqxmd.com/read/29129844/spatial-restriction-within-intracranial-epidermoid-cysts-observed-using-short-diffusion-time-diffusion-weighted-imaging
#4
Christina Andica, Masaaki Hori, Kouhei Kamiya, Saori Koshino, Akifumi Hagiwara, Koji Kamagata, Issei Fukunaga, Nozomi Hamasaki, Michimasa Suzuki, Thorsten Feiweier, Katsutoshi Murata, Atsushi Arakawa, Kondo Akihide, Osamu Akiyama, Shigeki Aoki
We report two cases of pathologically proven intracranial epidermoid cysts. Both cases were scanned with diffusion-weighted imaging using pulsed gradient spin-echo (PGSE) and oscillating gradient spin-echo (OGSE; 50 Hz) prototype sequences with diffusion times of 47.3 ms and 8.5 ms, respectively. The apparent diffusion coefficient measured by OGSE was higher than that measured by PGSE, indicating the spatial restriction of water diffusion in the laminated keratin layers within the cyst as demonstrated by histopathology...
November 13, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29118524/collision-tumor-between-trichofolliculoma-and-melanocytic-nevus
#5
Christel Bolte, Roberto Cullen, Ivo Sazunic
Trichofolliculoma (TF) is a hamartomatous hair follicle-related tumor, clinically described as a dome-shaped papule with a central pore crossed by one or more silky white hairs. Histologically, it described as a cystic cavity containing keratinous debris, hair shaft fragments, and numerous hair follicles arising from its linings. Collision or compound tumors are a coexistence of two or more identifiable tumors in the same lesion. We present a case of a 47-year-old man with a lesion on his left cheek clinically characterized as a TF...
October 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/29089741/epidermoid-cyst-in-inguinal-canal-a-rare-presentation
#6
Sumitoj Singh, Jaspreet Singh, Brij Mohan Joshi, Mandeep Singh Sandhu, Ashok Kumar
The patients presenting with lump in inguinal area are mostly suspected as hernias. Epidermoid cyst commonly presenting in head and neck region rarely may develop from inguinal canal structures. We present here a rare case of epidermoid cyst measuring 7×8 cm as a content of inguinal canal diagnosed by ultrasonography. Surgical excision was done and confirmed as epidermoid cyst by histopathology. We conclude that cutaneous cysts in inguinal area may be a presentation and should be kept in mind for differential diagnosis...
July 2017: Nigerian Journal of Surgery: Official Publication of the Nigerian Surgical Research Society
https://www.readbyqxmd.com/read/29073668/congenital-epidermoid-cyst-presenting-as-isolated-painful-trigeminal-neuropathy-indications-for-neuroimaging-in-the-diagnostic-process
#7
Kimberley Kok, Chris Sproat, Mun-Seng Chong, Chris Chandler, Nick Thomas, Hoong-Wei Gan
This article reports a case of a cerebellopontine angle epidermoid cyst presenting as isolated painful trigeminal neuropathy. The indolent nature of these uncommon benign tumors leads to frequent delays in their presentation and diagnosis, with patients often initially undergoing dental procedures. This is illustrated in the present case reported here, which highlights the difficulties in identifying trigeminal neuralgia (TN), particularly in its early phases, and supports current recommendations for routine neuroimaging in suspected cases of painful trigeminal neuropathy, which, unlike classic TN, is caused by a disorder other than neurovascular compression (even in the absence of additional neurologic symptoms or signs) and is present particularly in younger patients with atypical features...
October 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/29050465/epidermoid-splenic-cyst-with-elevated-serum-level-of-ca19-9
#8
Natalia Buda, Anna Wszołek, Maciej Śledziński, Anton Żawrocki, Krzysztof Sworczak
No abstract text is available yet for this article.
October 19, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29019877/a-spontaneous-hematoma-arising-within-an-intrapancreatic-accessory-spleen-a-case-report-and-literature-review
#9
Guo-Dong Shan, Wen-Guo Chen, Feng-Ling Hu, Li-Hua Chen, Jing-Hua Yu, Hua-Tuo Zhu, Qi-Qi Gao, Guo-Qiang Xu
RATIONAL: Hematoma arising within an intrapancreatic accessory spleen (IPAS) is an extremely rare pathological entity. PATIENT CONCERN: We present the case of a 39-year-old man with acute abdominal pain. DIAGNOSES: The patient was initially diagnosed as pancreatic cystic neoplasm according to CT and MRI imaging. INTERVENTIONS: Distal pancreatectomy was conducted because of the possibility of malignancy. OUTCOMES: Surgical resection showed that the lesion was a hematoma in an IPAS...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28983946/human-papillomavirus-type-6-11-identified-in-an-epidermoid-cyst-of-the-scrotum
#10
Masaaki Kawase, Kiyofumi Egawa, Takaoki Ishiji, Hidemi Nakagawa
To date, epidermoid cysts associated with human papillomavirus (HPV) infection have been described mainly in palmoplantar locations, and have involved HPV types 60 and 57. In contrast, HPV-6/11 is a major cause of condyloma acuminatum. Here, we report the case of a healthy 31-year-old man who presented to our clinic with a 1-month history of a 1-cm, reddish-brown, cystic scrotal tumor with a punctum. The lesion was studied histologically, immunohistochemically and by DNA-DNAin situ hybridization. Histology revealed an epidermoid cyst with vacuolated keratinocytes with shrunken nuclei (koilocytes) in the cyst wall...
October 6, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28979663/finger-pad-squamous-cell-carcinoma-report-of-squamous-cell-carcinoma-of-the-distal-palmar-digit-and-review-of-associated-risk-factors-mimickers-and-treatment-of-squamous-cell-carcinoma-of-ventral-hand-digits
#11
Philip R Cohen, S Brian Jiang
BACKGROUND: Squamous cell carcinoma of the palmar digits is rare. PURPOSE: The authors describe a man with squamous cell carcinoma of the pulp of his left fourth finger, and review the risk factors that may be associated with squamous cell carcinoma development on the ventral digits of the hand. the authors also summarize the clinical differential diagnoses and treatment of squamous cell carcinoma at this location. METHODS: the authors retrospectively reviewed the literature using PubMed and searched for the following terms: squamous cell carcinoma, squamous cell carcinoma in situ, finger, thumb, palmar, and ventral...
August 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28966821/self-resolving-prepontine-cyst
#12
Muhammad Waqas, Inamullah Khan, Reehana Khawaja, Ayesha Quddusi, Syed Ather Enam
BACKGROUND: Intracranial prepontine cysts are rare and include epidermoid cysts, arachnoid cysts, and neurenteric cysts. Symptomatic prepontine cysts may require surgical intervention. Reports of spontaneous resolution of cysts are rare. CASE DESCRIPTION: We describe the case of a young gentleman who presented with headache and fever. Magnetic resonance imaging of the brain identified a prepontine lesion with features consistent with epidermoid cyst. During admission, the patient received symptomatic management in addition to empirical antibiotic therapy and dexamethasone...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28953141/nontraumatic-intradiploic-epidermoid-cyst-and-older-age-association-or-causality
#13
Okan Turk, Nuriye Guzin Ozdemir, Nail Demirel, Ibrahim Burak Atci, Ayhan Kanat, Coskun Yolas
BACKGROUND: Intradiploic epidermoid cysts (IEC) are rare, benign lesions derived from ectodermal remnants during neural tube closure. Their origin is still debated or unknown. OBJECTIVE: Analyzing of the patients with intradiploic epidermoid cysts operated in the authors' department. METHODS: The patients with IEC who were operated in the authors' department between January 2014 and December 2015 were investigated from data file. RESULTS: Six patients with IEC were found, reviewed the literature, and noted that these cysts usually occur in adults...
September 25, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28937919/neurosurgical-management-of-a-rare-congenital-supratentorial-neurenteric-cyst-with-associated-nasal-dermal-sinus-case-report
#14
Paul MacMahon, Stanca Iacob, Sarah E Bach, Eric T Elwood, Julian J Lin, Anthony M Avellino
The authors describe the case of a patient with the classic clinical presentation and radiographic features of a nasal dermal sinus with an associated intracranial cyst; however, histopathology revealed that the intracranial cyst was neurenteric instead of the typical epidermoid or dermoid cyst. Preoperative assessment included CT and MRI, which revealed a direct communication between the patient's nasal polypoid lesion and the anterior skull base via the foramen cecum. At the hands of a multidisciplinary plastic surgery and neurosurgery team, the patient underwent concurrent gross-total resection of the nasal polypoid lesion, the intracranial intradural cystic lesion, and their interconnecting tract...
September 15, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28932061/epidermal-cysts-a-clinicopathological-analysis-with-emphasis-on-unusual-findings
#15
Jitendra Singh Nigam, Jyotsna Naresh Bharti, Vivek Nair, Chitrawati Bal Gargade, Archana Hemant Deshpande, Biswajit Dey, Ashok Singh
BACKGROUND: Epidermoid cysts, one of the common benign intradermal or subcutaneous tumors commonly result from the trauma to the pilosebaceous unit in the hair bearing area. In areas without hair, these cysts are considered implantation and proliferation of squamous epithelium into the dermis due to injury. AIMS: The aim is to evaluate the clinicopathological details with emphasis on unusual findings related to epidermoid cysts. STUDY DESIGN: This is a retrospective cross-sectional study carried out over 2 years...
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28914873/-the-extended-endoscopic-endonasal-transsphenoidal-approach-in-surgery-for-epidermoid-cysts-of-the-chiasmatic-region
#16
D V Fomichev, P L Kalinin, M A Kutin, O I Sharipov, I V Chernov
Surgical treatment for epidermoid cysts of the chiasmatic region is a challenge because of the tendency to a massive spread of epidermoid masses through the cerebrospinal fluid pathways and a significant lesion deviation from the midline. PURPOSE: To analyze capabilities of the extended endoscopic endonasal transsphenoidal approach in surgery for epidermoid cysts. MATERIAL AND METHODS: The study included 6 patients with epidermoid cysts of the chiasmatic region who were operated on using the extended anterior endoscopic endonasal transsphenoidal approach at the Burdenko Neurosurgical Institute in the past 5 years...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28899831/acquired-chiari-i-malformation-with-syringomyelia-secondary-to-colloid-cyst-with-hydrocephalus-case-report-and-review-of-literature
#17
Amit Kumar Thotakura, Nageswara R Marabathina
INTRODUCTION: Acquired Chiari malformation and associated syringomyelia have been previously described following lumbar puncture/drainage, lumboperitoneal shunts, and spontaneous CSF leakage. In addition to these etiologies, space-occupying lesions such as meningiomas, epidermoid cysts, medulloblastomas, and arachnoid cysts are rare causes of acquired Chiari malformation and syringomyelia. We report a rare case of colloid cyst with hydrocephalus causing secondary Chiari malformation with syringomyelia...
September 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28883682/role-of-mri-in-diagnosis-of-ruptured-intracranial-dermoid-cyst
#18
Sefedin Muçaj, Mehmet Sahin Ugurel, Kreshnike Dedushi, Naser Ramadani, Naim Jerliu
INTRODUCTION: Intracranial dermoid cystic tumors account for <1% of all intracranial masses. CASE REPORT: A 52-year-old male, having headaches, nausea and is presented with a history of 2 episodes of new onset seizures. On presentation, the patient had a normal physical exam, including a complete neurological and cranial nerve exam. METHODS: Precontrast MRI; TSE/T2Wsequence in axial/coronal planes; 3D - HI-resolution T1W sagittal; FLAIR/T2W axial; FLAIR/T2W, Flash/T2W oblique coronal plane, GRE/T2W axial...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28880599/giant-plantar-epidermoid-cyst-with-invasion-of-the-interosseous-muscles
#19
Antonio Córdoba-Fernandez, Adrián Lobo-Martín, Carlos Escudero-Severín, Victoria Eugenia Córdoba-Jiménez
Epidermoid cysts of the sole of the foot are rare lesions that must be differentiated from other, more common subcutaneous pathologic abnormalities located on the sole. Cases of epidermoid cysts that extend to the interosseous musculature are rarer still. We report the case of a giant epidermal cyst in a 64-year-old individual that extended to the intrinsic musculature of the third space of the right foot and that was diagnosed after fine-needle aspiration biopsy and subsequent cytologic study. Differential diagnosis of these lesions should be made with the support of additional imaging tests, and diagnostic confirmation should always be obtained after surgical removal and subsequent histopathologic study...
July 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28880406/incidental-neuronal-intermediate-filament-inclusion-pathology-unexpected-biopsy-findings-in-a-37-year-old-woman-with-epilepsy
#20
Ellen Gelpi, Cristina Carrato, Laia Grau-López, Juan Luis Becerra, Roser Garcia-Armengol, Anna Massuet, Laura Cervera, Jordi Clarimon, Katrin Beyer, Ramiro Álvarez
We present unexpected neuropathological findings in a 37 year old woman who underwent surgery for removal of an epidermoid cyst. A first brain MRI at the age of 27 years (due to hyperprolactinemia) showed a cystic lesion in the right prepontine region involving the cisterna ambiens with supratentorial extension. The lesion remained stable until she was 32 year, when it increased in size causing partial compression of the parahippocampal gyrus, midbrain peduncle and lateral pons (Fig. 1). One year later, the patient started to present weekly seizures in form of partial focal complex seizures...
September 7, 2017: Neuropathology and Applied Neurobiology
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