Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report

Skull base osteomas are rare tumors, typically asymptomatic and without specific clinical manifestations. These are slow-growing benign tumors that, in some cases, can reach significant sizes and exert a mass effect on surrounding neural and vascular structures located at the skull base, leading to...

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Main Authors: Bechev K., Stoitsev Ts., Markov D., Aleksiev V., Markov S.
Format: Article
Language:English
Published: Sciendo 2025-06-01
Series:Acta Medica Bulgarica
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Online Access:https://doi.org/10.2478/amb-2025-0049
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author Bechev K.
Stoitsev Ts.
Markov D.
Aleksiev V.
Markov S.
author_facet Bechev K.
Stoitsev Ts.
Markov D.
Aleksiev V.
Markov S.
author_sort Bechev K.
collection DOAJ
description Skull base osteomas are rare tumors, typically asymptomatic and without specific clinical manifestations. These are slow-growing benign tumors that, in some cases, can reach significant sizes and exert a mass effect on surrounding neural and vascular structures located at the skull base, leading to corresponding clinical symptoms. Tumors located on the posterior wall of the sphenoid sinus may appear on magnetic resonance imaging (MRI) and computed tomography (CT) as osteomas, polyps originating from the mucosa of the sphenoid sinus, chordomas, or chondrosarcomas. During the second and third decades of life, chordomas and osteomas are commonly encountered tumors. The two imaging modalities are interrelated and complementary since CT visualizes bony structures effectively, while MRI is superior for soft tissues and brain parenchyma. In the present case report, we describe a 29-year-old woman presenting with symptoms of numbness in the right limbs, dizziness, and nausea, without vomiting. She reported dropping objects with her right hand. An MRI of the brain was performed, revealing a lesion localized on the posterior wall of the sphenoid sinus, extending to the clivus and infiltrating the inferior surface of the sella turcica. The lesion showed increased signal intensity on T2-weighted sequences. Given the small size of the tumor and the absence of corresponding clinical manifestations, the lesion is subject to clinical monitoring. Surgical approaches for the removal of such tumors include the endoscopic transsphenoidal approach to the skull base or the sublabial transsphenoidal approach. Complications associated with these surgical interventions may involve dural laceration and subsequent cerebrospinal fluid leakage, as well as potential damage to critical vessels or nerves.
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spelling doaj-art-8245d5c58b4e4ea999f6787b3777fd942025-08-20T03:22:33ZengSciendoActa Medica Bulgarica2719-53842025-06-01522788210.2478/amb-2025-0049Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case ReportBechev K.0Stoitsev Ts.1Markov D.2Aleksiev V.3Markov S.41University Hospital Pulmed, Medical University – Plovdiv, Bulgaria2Medical Faculty, Medical University – Plovdiv, Bulgaria3General and Clinical Pathology, Medical University – Plovdiv, Bulgaria4Cardiovascular Surgery, Medical University – Plovdiv, Bulgaria5Department of Otorhinolaryngology, Medical University - Plovdiv, BulgariaSkull base osteomas are rare tumors, typically asymptomatic and without specific clinical manifestations. These are slow-growing benign tumors that, in some cases, can reach significant sizes and exert a mass effect on surrounding neural and vascular structures located at the skull base, leading to corresponding clinical symptoms. Tumors located on the posterior wall of the sphenoid sinus may appear on magnetic resonance imaging (MRI) and computed tomography (CT) as osteomas, polyps originating from the mucosa of the sphenoid sinus, chordomas, or chondrosarcomas. During the second and third decades of life, chordomas and osteomas are commonly encountered tumors. The two imaging modalities are interrelated and complementary since CT visualizes bony structures effectively, while MRI is superior for soft tissues and brain parenchyma. In the present case report, we describe a 29-year-old woman presenting with symptoms of numbness in the right limbs, dizziness, and nausea, without vomiting. She reported dropping objects with her right hand. An MRI of the brain was performed, revealing a lesion localized on the posterior wall of the sphenoid sinus, extending to the clivus and infiltrating the inferior surface of the sella turcica. The lesion showed increased signal intensity on T2-weighted sequences. Given the small size of the tumor and the absence of corresponding clinical manifestations, the lesion is subject to clinical monitoring. Surgical approaches for the removal of such tumors include the endoscopic transsphenoidal approach to the skull base or the sublabial transsphenoidal approach. Complications associated with these surgical interventions may involve dural laceration and subsequent cerebrospinal fluid leakage, as well as potential damage to critical vessels or nerves.https://doi.org/10.2478/amb-2025-0049sphenoid sinusosteomas of the sphenoid sinusmri examination of the skull basect of the paranasal sinuses and skull basechordoma of the sphenoid sinustranssphenoidal approaches to the skull base
spellingShingle Bechev K.
Stoitsev Ts.
Markov D.
Aleksiev V.
Markov S.
Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report
Acta Medica Bulgarica
sphenoid sinus
osteomas of the sphenoid sinus
mri examination of the skull base
ct of the paranasal sinuses and skull base
chordoma of the sphenoid sinus
transsphenoidal approaches to the skull base
title Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report
title_full Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report
title_fullStr Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report
title_full_unstemmed Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report
title_short Osteoma of the Posterior Wall of the Sphenoid Sinus in A 29-Year-Old Woman – A Case Report
title_sort osteoma of the posterior wall of the sphenoid sinus in a 29 year old woman a case report
topic sphenoid sinus
osteomas of the sphenoid sinus
mri examination of the skull base
ct of the paranasal sinuses and skull base
chordoma of the sphenoid sinus
transsphenoidal approaches to the skull base
url https://doi.org/10.2478/amb-2025-0049
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