Case Reports in Otolaryngology

Case Reports in Otolaryngology / 2014 / Article

Case Report | Open Access

Volume 2014 |Article ID 348459 | https://doi.org/10.1155/2014/348459

Athanasios Saratziotis, Enzo Emanuelli, "Osteoma of the Medial Wall of the Maxillary Sinus: A Primary Cause of Nasolacrimal Duct Obstruction and Review of the Literature", Case Reports in Otolaryngology, vol. 2014, Article ID 348459, 4 pages, 2014. https://doi.org/10.1155/2014/348459

Osteoma of the Medial Wall of the Maxillary Sinus: A Primary Cause of Nasolacrimal Duct Obstruction and Review of the Literature

Academic Editor: Rong-San Jiang
Received28 Feb 2014
Accepted13 Oct 2014
Published11 Nov 2014

Abstract

A 74-year-old male patient presented to the outpatient department with left-sided epiphora and chronic dacryocystitis, without any history of head trauma or previous nasal or paranasal sinuses surgery. No abnormalities were noted at the time with the use of nasal endoscopy. The computed tomography scan however revealed an osteoma of the medial wall of the left maxillary sinus. An endonasal endoscopic dacryocystorhinostomy (DCR) with osteoma removal by using a drill with temporary silicone stenting of the nasolacrimal duct system was performed. Due to a granuloma formation at the DCR-window site 2 months postoperatively a revision-DCR was performed and the new window remained patent at control 6 months after surgery.

1. Introduction

Acquired nasolacrimal duct obstruction (NLDO) may be due to various causes including idiopathic stenosis of the nasolacrimal duct, with or without formation of nasolacrimal duct mucoceles, trauma, or surgery to the paranasal sinuses and tumors of the nasal cavity.

Osteomas are benign tumors developing in the paranasal sinuses and the nasal cavity. They usually grow in the frontal sinus near the nasofrontal duct and, in decreasing order of frequency, in the ethmoid, sphenoid, and maxillary sinus. They usually remain asymptomatic and they tend to be an incidental finding on radiographic studies. Rarely, they extend out of the sinus limits.

To our knowledge, acquired NLDO associated with an osteoma of the medial wall of the maxillary sinus has not been reported in medical literature so far.

Various methods such as laser beams, forceps, curettes, neurosurgical microrongeurs, and drills have been used for the formation of the lateral nasal wall osteotomy during endonasal dacryocystorhinostomy (DCR) [1]. By means of an endoscopic (rather than an external) DCR approach, not only NLDO but also the concomitant endonasal pathology can be simultaneously addressed.

2. Case Presentation

A 74-year-old male patient presented to the outpatient department with left-sided epiphora and chronic dacryocystitis, without any record of head trauma or previous surgery of the nose or paranasal sinuses. On nasal endoscopy no abnormalities were noted. A diagnosis of saccal NLDO was made by clinical examination including lacrimal irrigation and fluorescein tests (Jones I and II tests) as well as probing of the canaliculi with a blunt probe up to bony contact with the lacrimal sac fossa performed by an ophthalmologist. The imaging studies (CT scan) revealed a 1 cm osteoma of the ventral half of the medial wall of the left maxillary sinus causing total obstruction at the level of the lacrimal sac (Figures 1, 2, 3, and 4).

Under general anesthesia, an endonasal endoscopic dacryocystorhinostomy (DCR) without flaps [2] using a cutting- and diamond-burr drill as well as the osteoma removal using a cutting-burr drill was performed. A temporary silicone stenting of the nasolacrimal duct system was applied. No postoperative complications occurred. An oral antibiotic therapy (amoxicillin and clavulanic acid 1 gr twice a day) was initiated on the day of surgery and continued for 5 days. A concomitant topical therapy with antibiotic and steroid solutions (tobramycin and dexamethasone ophthalmic suspension 2-3 drops twice a day for 5 days) was also given. The patient’s total hospital stay lasted 1 day.

A lacrimal duct system irrigation with natural saline solution into the inferior canaliculus was performed by an ophthalmologist once a week during the first month and twice a month during the second month. An endoscopic endonasal examination to test the patency of the duct system was performed 15, 21, and 30 days postoperatively. The silicone stent was removed 6 weeks postoperatively. An anatomical and functional obstruction of the DCR-window due to granuloma formation at the DCR-window area was noted 8 weeks after surgery on the combined nasal endoscopic and ophthalmologic examination. An endoscopic revision-DCR procedure with granuloma removal under local anaesthesia was performed. The DCR-window remained functionally and anatomically patent 6 months after surgery (Figures 5 and 6).

3. Discussion

Osteomas are slow growing benign tumors of bone, occurring most commonly in the craniofacial skeletal structures, mainly in the nasal and paranasal cavities. They usually develop at the frontal and ethmoid sinuses (90%), with the maxillary and sphenoid sinuses as well as the nasal cavity being rare sites of occurrence (10%) [3]. The cause of an osteoma is usually unidentified, but commonly accepted theories propose embryological, traumatic, or infective causes [4].

Some possible causes of a maxillary sinus osteoma include trauma, previous surgery, inflammation, or developmental abnormalities. Given that there was no history of previous trauma, paranasal surgery, or chronic sinusitis for this particular patient, the cause of osteoma formation is unclear.

In their early stages, osteomas of the paranasal sinuses are usually asymptomatic and are incidentally detected on imaging examinations for other conditions. Symptoms vary depending on tumor size and location. The most common symptoms include headache, facial pain, and nasal obstruction. Osteomas causing nasolacrimal duct obstruction with symptoms of epiphora or dacryocystitis are usually associated with the ethmoid sinus. A review of osteomas causing epiphora is summarized on Table 1.


ReferenceAgeSexOsteoma locationSymptoms

[5]1984 Sternberg and Levine15N/A1Ethmoid sinusEpiphora
[3]1999Mansour et al.66F2Ethmoid sinusOrbital cellulitis, epiphora
[6]2003Osma et al.35M3Ethmoid sinusEpiphora
[7]2003 Lin et al.73MMiddle turbinateΙpsilateral facial pain, epiphora, nasal obstruction
[8]2005Kandogan et al.39FEthmoid sinusEpiphora, facial pain
[9]2005Zouloumis et al.34FEthmoid sinusHeadache, epiphora, proptosis
[10]2006Lachanas et al.16MEthmoid sinusEpiphora, mild pain in area of median canthus
[11]2010Daneshi et al.41FMiddle turbinateNasal obstruction, epiphora, nasal discharge
[12]2013Kim and Kwon49MNasolacrimal ductIpsilateral ocular pain, epiphora, medial canthal swelling

N/A: not available.
2F: female.
3M: male.

In asymptomatic cases, excision is not always indicated and should be considered when the osteoma is responsible for occurring symptoms, if medical treatment of the symptoms is unsuccessful. In cases of osteoma extension beyond the sinus margins, surgical treatment is mandatory. Surgical approaches include external, endoscopic, and combined endoscopic and external procedures.

In cases where a sinus osteoma causes obstruction of the nasolacrimal duct and in the management of the diseases of the lacrimal system in general, close cooperation between the ENT surgeon and the ophthalmologist is of major importance. The combined nasal endoscopic and ophthalmologic examination, before and after the excision of the osteoma and the treatment of the obstruction, will ensure the functional and anatomic success.

Conflict of Interests

The authors declare that there is no conflict of interests regarding the publication of this paper.

References

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Copyright © 2014 Athanasios Saratziotis and Enzo Emanuelli. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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