Original Article


Paranasal Carcinoma: A Case Series

Authors: Shakil Aqil, Iqra Zakir, Hamdan Pasha, Zubair Khan
DOI: https://doi.org/10.37184/lntbj.2708-7808.2.13
Year: 2020
Volume: 2
Received: Oct 06, 2020
Revised: Jan 18, 2021
Accepted: Feb 17, 2021
Corresponding Auhtor: Iqra Zakir



Abstract

Objective: To emphasize the importance of early diagnosis of cancer of paranasal sinus.

Method: This is retrospective case series done in Liaquat National Hospital. Data were retrieved from August to October 2020.

Results: Data of a total of 5 patients with sinonasal cancer was reviewed. Four patients presented with extensive disease. Three patients were male and two were female. The age of patients was between 40 and 70 years. All these five patients underwent surgery. Four patients were referred for concurrent chemoradiotherapy (CCRT) and one patient expired after surgery.

Conclusion: Malignant tumors of the nose and sinuses are rare constituting 3% of head and neck malignancies. The early symptoms are relatively innocuous and are often ignored by the patient, their general practitioners and even ENT surgeons leading to a delayed diagnosis and treatment. Although paranasal tumors are rare they should be in our differential.

Keywords: Paranasl carcinoma, sinonasal cancer, malignant tumors, nose, diagnose.

INTRODUCTION

Sinonasal tumors are rare, but due to bad prognosis and morbidity, these tumors deserve great attention. Earlier diagnosis, better local control, and the development of new and better therapeutic modalities can improve the management and prognosis but unfortunately, late diagnosis of the malignant tumors in this anatomic area confound these goals.

Diagnosis is mostly delayed because early symptoms are misleading or ignored. Symptoms usually mimic benign diseases. Local control is difficult due to the extension of the tumor to vital structures at the cribriform plate, pterygomaxillary space, orbital apex, sphenoid, and nasopharynx. The paucity of lymphatic drainage from the sinuses results in a low incidence (approximately 10%) of cervical lymphadenopathy.

The major challenge to the head and neck surgeon is to improve the chances of cure and yet provide functional and cosmetic reconstruction. This case series will help otolaryngologists to update their knowledge about this rare disease so that early diagnosis and treatment can be done.

Details of all these five cases are following.

Case 1:

A 40- year old woman with no known comorbid came to opd with a complaint of swelling on the right side of the face for 2 months. The swelling was progressively increasing in size and associated with nasal obstruction. There was no history of addiction or any exposure to carcinogens. On examination approx. 5 x 4 cm firm swelling was present in the right maxillary region starting superiorly from the infra-orbital margin, inferiorly up to nasolabial angle, medially involving right nasal cavity and laterally up to the zygomatic arch, overlying skin was erythematous but no tethering present. The swelling was present on the right eye and the patient was not able to open it, although the vision of the right eye was normal ( Fig. 1).

MATERIALS AND METHODS

We reviewed the record of five patients who presented in Liaquat national hospital and were diagnosed with paranasal tumors from august 2020 till October 2020. Medical, radiological and pathological records were reviewed in detail.

*Corresponding Author: Iqra Zakir, Department of E.N.T-Head and Neck Surgery, Liaquat National Hospital and Medical College, Karachi, Pakistan; Email: iqrazakir00@gmail.com

Received: October 06, 2020; Revised: January 18, 2021; Accepted: February 17, 2021

DOI: https://doi.org/10.37184/lntbj.2708-7808.2.13

Fig. (1): Large swelling involving right maxillary region and right eye.

CT scan paranasal sinuses showed, ill-defined heterogeneously enhancing infiltrating lesion approx. 67 mm x 51 mm x 67 mm involving maxillary sinus, anterior and posterior ethmoid and right nasal cavity. The lesion is extending to the adjacent anteromedial aspect of the right orbit cavity, medially lesion reached nasal septum, anteromedially lesion extending to the subcutaneous soft tissue of right cheek. Significant destructive changes of underlying maxillary and ethmoidal bones were noted. No intracranial extension of the lesion is noted ( Figs. 2A&2B). A nasal biopsy was done which showed poorly differentiated large cell neuroendocrine carcinoma. CT chest was done to rule out metastasis but it was unremarkable.

Figs. (2A&2B): Large mass involving right maxillary sinus, anterior and posterior ethmoid, nasal cavity and orbit with bony destruction of the maxillary sinus and ethmoid sinus.

So right maxillectomy + right orbital exenteration

+ reconstruction with forehead flap was done. The specimen was shown in (Fig. 3). The postoperative period went uneventful and the patient got discharged on 3rd POD on antibiotics and analgesics. The patient was called for follow-up after 1 week. Final histopathology showed poorly differentiated large cell neuroendocrine carcinoma T4NxMx. All margins were cleared.

Fig. (3): Specimen of a patient after excision.

Proliferation index Ki67 was approximately 95%. The case was discussed in the tumor board meeting and concurrent chemoradiation was advised.

Case 2:

A 70 year- old man with no known comorbid presented in ENT clinic with a complaint of right facial swelling and loss of vision in the right eye for the last 5 months. There was no history of addiction and exposure to chemicals. On examination, the patient had a large firm swelling extending from the medial canthus to the zygoma, adherent to the overlying skin, causing the displacement of the eyeball laterally. There was another swelling below it that spared the overlying skin. There was no vision or light perception in the right eye ( Fig. 4).

Fig. (4): Large mass involving right medial canthal region and displacing the eye laterally.

The CT scan was done which showed large bulky heterogeneously enhancing mass with internal necrosis involving the right nasal cavity and extending into right maxillary and ethmoid sinuses. The mass was causing erosion and destruction of anterior and medial walls of the right maxillary sinus and lamina papyracea with significant extension into the right orbit, involving medial and inferior recti muscles. Medially it was abutting the nasal septum ( Figs. 5A&5B).

Figs. (5A&5B): Large mass with internal necrosis involving nasal cavity, maxillary sinus, ethmoid sinus and orbit with bony destruction of maxilla and lamina papyracea.

The biopsy was done which showed well to moderately

differentiated squamous cell carcinoma. Surgery was

planned and he underwent right radical maxillectomy + right orbital Exenteration + clearance of right ethmoidal, frontal and sphenoid sinuses and reconstruction with a free flap. After surgery unfortunately his free flap did not survive and he developed sepsis due to which he expired on 7th POD. Final histopathology showed squamous cell carcinoma T4NxMx. All margins were cleared.

Case 3:

A 60- year old woman, a known case of hypertension, diabetes mellitus and ischemic heart disease, presented in ENT clinic with a complaint of right nasal blockage for 2 years associated with anosmia, nasal discharge and postnasal dripping. There was no history of addiction and exposure to carcinogens. On examination polypoidal tissue filling the right nasal cavity. Right-sided proptosis was present but vision and eye movements were normal. CT scan of paranasal sinuses was done which showed a polypoidal mass in the right nasal cavity-causing erosion of the septum and protruding into the left nasal cavity. Mass extending into bilateral maxillary, ethmoidal and sphenoidal sinuses causing thinning and re-modeling of bony margins with the widening of bilateral osteomeatal complexes. Posteriorly mass extending into nasopharynx on the right side. It measures approximately 9.0 x 4.5cm in axial dimensions causing thinning and focal erosion of the right lamina papyracea and showing extension into the medial part of the right orbit, compressing and displacing the right medial rectus muscle laterally and causing proptosis. Findings are likely due to sinonasal polyposis (Fig. 6).

tumor board and the patient was referred for concurrent chemoradiation.

Case 4:

A 64-year old man with no known comorbid came with the complaint of left nasal blockage for 3 months associated with nasal discharge and facial pain for 1 month. He was a painter by profession and also had a history of smoking for the last 30 years. On examination ulcerative fungating lesion was found on the left side of the nose in the middle meatus pushing the middle turbinate medially and extending till the floor of the nose. Thick mucus was present on the left side of the nose (Fig. 7).

Fig. (7A): Picture of the patient, no external swelling or mass present.

(7B): Endoscopic picture of the nose showing fungating lesion.

CT scan showed an extensive heterogeneously enhancing lesion in the left side of the sinonasal passage, its epicenter was in the maxillary sinus, bulging slightly in infratemporal fossa abutting pterygoid muscle, superiorly the mass was involving left ethmoid sinus with bone destruction. Lamina papyracea was also eroded. No intracranial cavity or orbital extension was seen (Fig. 8). Biopsy showed moderate to poorly differentiated squamous cell carcinoma.