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Is radical surgery of an inverted papilloma of the maxillary sinus obsolete? a case report
© The Author(s). 2016
Received: 4 September 2016
Accepted: 23 October 2016
Published: 1 December 2016
Sinonasal inverted papilloma is a locally aggressive tumor arising from the Schneiderian membrane which lines the nasal cavity and paranasal sinuses. Aggressive surgical approaches, such as lateral rhinotomy, were used until recently for complete removal of the inverted papilloma. Currently, endoscopic resection is the gold standard in the treatment of inverted papilloma. However, there are situations that justify an open approach. For example there are studies that report a higher postoperative recurrence rate after endonasal endoscopic resection, particularly in the treatment of recurrent diseases. While endoscopic resection performed by an experienced surgeon is definitely a minimally invasive therapy, an open approach is not necessarily associated with functional and aesthetic disadvantages.
This case report describes the treatment of inverted papilloma by an open approach. This has been described before but the new gold standard of endoscopic resection has to be taken into account before any treatment decision is made nowadays.
Contrast-enhanced magnetic resonance imaging of the head and neck area was indicated in a 72-year-old white German man who presented with suspected squamous cell carcinoma of his lower lip. Magnetic resonance imaging additionally revealed a 3×2 cm2 polycyclic arranged mucosal thickening with cystic and solid contrast affine shares at the antral laterocaudal area of his right maxillary sinus, extending from his right lateral nasal wall to his maxillary sinus floor.
He received antral polypectomy with medial maxillectomy via a unilateral LeFort I osteotomy approach. His pterygoid plate was preserved. A histological examination demonstrated a tumor composed of hyperplastic squamous epithelium protruding into the stroma (surface epithelial cells grew downward into the underlying supportive tissue), thus producing a grossly convoluted cerebriform appearance. Two weeks later, the patient regained a well-formed maxilla without any restrictions. He has remained disease-free for 25 months following the surgery and surveillance was continued in our tumor clinic.
Endoscopic resection of an inverted papilloma continues to be the gold standard. However, some cases require a radical approach. This does not necessarily increase patient morbidity.
Inverted papilloma (IP) is an uncommon lesion that accounts for less than 0.5 to 4 % of all sinonasal tumors . The treatment of choice for IP involves a wide excision using either an open or endoscopic approach. Candidates for endoscopic surgery are appropriately selected patients with a limited disease spread on their ethmoid sinuses, their lateral nasal wall, or their medial maxillary wall. Contraindications to endoscopic resection included massive skull base erosion, intradural or intraorbital extension , abundant scar tissue from previous surgery, and/or associated squamous cell carcinoma . Extensive tumors usually require medial maxillectomy via a lateral rhinotomy approach. This case report reassesses the treatment procedure and the outcome based on the case of one patient treated in our clinic.
A 72-year-old white German man presented with a 5-month history of a growing lip mass. A review of his medical history revealed that he had arterial hypertension, diabetes mellitus, peripheral arterial disease, and a one pack-daily cigarette smoking history. Four years earlier, he underwent a resection for prostate carcinoma.
He was hospitalized for 2 weeks (12 days) after the surgery and did well postoperatively. Two weeks later, he regained a well-formed maxilla without any restrictions. Eleven months after our therapy, a cutaneous malignant melanoma on his right upper arm was diagnosed (Breslow index 1.9 mm, Clark level IV) and he underwent a tumor resection and axillary sentinel lymph node biopsy in the clinic for dermatology of the University of Leipzig. He has remained disease-free for 25 months following the first surgery and surveillance was continued in our tumor clinic. This case substantiates our procedure of radical resection.
Our patient presented with an asymptomatic IP of his maxillary sinus accidentally found with squamous cell carcinoma of his lower lip. This case required particular attention because a carcinoma could have been associated with the IP. A relatively aggressive approach for IP was, therefore, applied at the same time as the cancer surgery.
Currently, no generally accepted treatment for IP of the sinonasal area exists. Some authors prefer an endonasal micro-endoscopic removal , while others prefer a radical resection (Caldwell–Luc) that is similar to our treatment . The decision depends on the position, dimensions, stage, and recurrence of the tumor. Some authors believe that radical therapy of the IP in this area causes functional and aesthetic problems for the patient. Since very little data exist concerning the treatment and outcome for different treatments of IP in the sinonasal area, it is difficult to find the best solution for each patient. Because of the position of the tumor, radical resection was preferred in this case. Postoperative readjustment of the prosthesis was without functional constrictions. Our case shows that radical resection of tumors in this location does not necessarily imply serious functional and aesthetic impairment for the patient. It is notable that the reported relationship between IP and squamous cell carcinoma was observed in this case .
It is very important to correctly diagnose a tumor in its early stage to cure or treat the patient as soon as possible. A wrong diagnosis for IP has fatal consequences for patients. It must be decided from case to case which treatment is the best one for the patient. If a tumor is detected at an early stage and in an accessible location, endonasal micro-endoscopic surgery is a very elegant solution and can be done by any accordingly trained surgeon, mostly an otorhinolaryngologist. To achieve low recurrence rates of IP (and oncocytic papilloma), surgeons performing an endoscopic approach should consider drilling, cauterizing, or completely excising the bone underlying the tumor base instead of mucosal stripping alone . Whenever the location or stage of the tumor prohibits the endonasal technique, radical resection is the best option and it does not necessarily cause significant functional and aesthetic problems for the patient.
Currently, the treatment for IP is surgical but the type of surgical approach is still controversial. Endoscopic surgery has become the gold standard for the treatment of the vast majority of IP. Antral polypectomy with medial maxillectomy via a unilateral LeFort I osteotomy is much more aggressive than the other approaches but might be justified especially in higher stages of disease . There is a likely possibility of cutting through the tumor’s stalk and the oscillatory saw dispersing the tumor cells around the tumor site, which leads to a higher risk of recurrence. However, the risk of dispersal of tumor cells during surgery is also present during the other approaches. A well-done MRI and an expert surgeon can minimize these risks.
Another discussion is about the possible malignant transformation of IP. Some authors also recommend radiotherapy for advanced and/or recurrent papillomas . This of course can be performed in addition to surgery or even as the only treatment.
In the light of the above-mentioned options and the different specialties possibly involved we strongly recommend treating IP within a multidisciplinary tumor board setting. Any treatment choice should only be made under consideration of the above-mentioned options of surgery (either endoscopic or open) and/or radiotherapy. In particular, an endoscopic surgeon needs to be “on board” since whatever treatment choice is made the endoscopic technique is always to be considered for at least preoperative biopsy and follow-up .
Endoscopic resection of an IP continues to be the gold standard. However, some cases require a more radical approach. This does not necessarily increase patient morbidity. Even so, endoscopic resection offers a great new treatment option; radical surgery is definitely not obsolete. Taking into account that radiotherapy is also worthy of discussion, a multidisciplinary discussion of any case is strongly recommended.
This work was not funded.
Availability of data and materials
VY, NCP, and DH treated the patient and initiated this manuscript. VY, NCP, DH, and AY reviewed the literature. VY, AY, and HTL drafted the manuscript. NCP and DH helped to draft the manuscript. HTL performed final adjustments and formatting of the manuscript regarding journal style. All authors read and approved the final manuscript.
The authors declare that they have no competing interests.
Consent for publication
Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
Ethics approval and consent to participate
As a case report but not a scientific study this manuscript did not need approval by the local ethics committee. Our patient agreed to the publication of his case in an anonymized manner.
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