A Nasal Dermoid Sinus Cyst with Intracranial Extension into the Anterior Cranial Fossa in a 4-Year Old Child; A Case Report

Intranasal schwannomas are rare lesions, specially when they present with an intracranial extension. The fifth case in the medical literature of a naso-ethmoid schwannoma with extension into the anterior cranial fossa is presented. The magnetic resonance findings and the details of the combined intracranial / transfacial operative approach used are described. The possible origin and the clinical characteristics of this rare lesion are reviewed.

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Smell Sparing Unilateral Intracranial Dermoid Resection

Allergy & Rhinology ◽

10.2500/ar.2014.5.0074 ◽

2014 ◽

Vol 5 (1) ◽

pp. ar.2014.5.0074

Author(s):

Jessica W. Grayson ◽

Mohamad R. Chaaban ◽

Kristen O. Riley ◽

Bradford A. Woodworth

Keyword(s):

Case Report ◽

Surgical Resection ◽

Viable Alternative ◽

Endoscopic Technique ◽

Anterior Cranial Fossa ◽

Intracranial Extension ◽

Alternative Technique ◽

Falx Cerebri ◽

Glandular Secretion ◽

Cranial Fossa

Intracranial dermoid cysts are congenital ectodermal inclusion cysts that have a propensity to occur in the midline sellar, parasellar, or frontonasal regions. These cysts enlarge by means of glandular secretion and epithelial desquamation. Surgical resection has traditionally included a craniotomy, but endoscopic approaches are now used with increasing regularity. A binostril approach is normally used to access dermoid cysts due to the midline nature of the lesions. In this case report, we describe the successful surgical resection of a dermoid with 1.5-cm of intracranial extension using a unilateral endonasal endoscopic approach with no complications and with no postoperative anosmia. Although the unilateral endoscopic technique is not plausible for all epidermoid or dermoid cysts of the anterior cranial fossa, it should be considered a viable alternative technique when faced with a dermoid limited to one side of the falx cerebri.

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Pediatric Nasal Chondromesenchymal Tumors: Case Report and Review of the Literature

Pediatric Neurosurgery ◽

10.1159/000512717 ◽

2021 ◽

pp. 1-6

Author(s):

Daniel Schaerer ◽

Javan Nation ◽

Robert C. Rennert ◽

Adam DeConde ◽

Michael L. Levy

Keyword(s):

Case Report ◽

Complete Resection ◽

Intracranial Extension ◽

Transnasal Approach ◽

Second Stage ◽

Transnasal Endoscopic Approach ◽

Significant Extension ◽

Hypothalamic Pituitary Axis ◽

Initial Biopsy ◽

Cranial Fossa

Introduction: Nasal chondromesenchymal tumors (NCMT) are rare benign neoplasms that usually present in children <1 year of age. They can display rapid growth and significant local bony remodeling that can mimic a malignant process. Of the ∼50 published cases to date, few have documented the need for neurosurgical intervention. We herein report a NCMT in an infant treated with a staged cranial and transnasal approach, as well as summarize the available literature on this pathology. Case Report: A newborn male with a compromised airway was noted to have a large sinonasal lesion. After stabilization, MRI demonstrated a 4-cm enhancing mass with diffuse sinus involvement and significant extension into the anterior cranial fossa, with displacement of the optic apparatus and hypothalamic pituitary axis. After an initial biopsy, the patient underwent a bifrontal craniofacial approach at 2 months of age, followed by a second-stage transnasal endoscopic approach at 15 months which resulted in a complete resection. There were no neurosurgical complications. Pathology was consistent with a NCMT. Discussion: Although rare, neurosurgical involvement is critical for the treatment of NCMTs with intracranial extension. Staged cranial and endonasal endoscopic approaches may be needed for complete resection of such lesions.

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Olfactory Nerve Schwannoma: A Case Report and Review of the Literature

The Surgery Journal ◽

10.1055/s-0038-1669991 ◽

2018 ◽

Vol 04 (03) ◽

pp. e164-e166 ◽

Cited By ~ 4

Author(s):

Mahmoud Taha ◽

Amr AlBakry ◽

Magdy ElSheikh ◽

Tarek AbdelBary

Keyword(s):

Case Report ◽

Peripheral Nerves ◽

Traffic Accident ◽

Road Traffic ◽

Olfactory Nerve ◽

Anterior Cranial Fossa ◽

Benign Tumors ◽

Rare Entity ◽

Review Of The Literature ◽

Cranial Fossa

AbstractSchwannomas are benign tumors, which arise from the Schwann cells of the central or peripheral nerves. They form 8% of all intracranial tumors and most of the cases arise from vestibular division of the 8th cranial nerve. Rare cases are shown to arise from the olfactory or optic nerve, being devoid of myelin sheath. Up to date and according to our best of knowledge, 66 cases have been reported till now. Here we present a review of the literature and a case report of a 56-year-old male with an accidently discovered anterior cranial fossa schwannoma, following a road traffic accident. Tumor was completely excised, using a right frontal approach. Histopathology revealed Antoni-A cellular pattern. Although rare, but olfactory nerve schwannomas should be included in the differential diagnosis in anterior cranial fossa space occupying lesions, and the approach should be designed taking into consideration, this rare entity.

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