• Imaging Science in Dentistry
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• v.51 no.1
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• pp.87-90
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• 2021

The increased use of cone-beam computed tomographic (CBCT) scans has made it increasingly necessary to evaluate incidental findings on CBCT scans. This report describes the case of a 66-year-old female patient who presented to the Department of Oral and Maxillofacial Pathology, Radiology and Medicine at the College of Dentistry of the author's institution and underwent a CBCT scan for maxillary alveolar process implant planning. Upon evaluation of the CBCT scan, a radiopaque (soft tissue attenuation) mass in the left superior aspect of the nasal cavity and left locule of the sphenoid sinus with opacification of the left locule of the sphenoid sinus was incidentally noted. These radiographic findings were suggestive of a space-occupying mass with a high possibility of malignancy. A further medical evaluation confirmed renal cell cancer metastasis to the sphenoid sinus. This study shows the significance of reviewing the entire CBCT scan for incidental findings.

• The Korean Journal of Pain
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• v.6 no.1
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• pp.100-104
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• 1993

Malignant tumors of the paranasal sinuses are quite rare entity, with maxillary neoplasms accounting for less than 1 percent of all head and neck malignancies. When considering the paranasal sinuses alone, 77 percent of cancers arise in the maxillary sinuses. There is no situation more frustrating than the management of the patients with chronic facial pain due to cancer. The initial step in managing patients with cancer pain is the use of oncologic therapy in the form of radiotherapy, surgery, chemotherapy, alone or combined, either to effect a cure or decrease the size of the tumor and thus decrease or eliminate the pain. When oncologic therapy is ineffective in providing relief, the pain must be treated by one or more of the followings: Systemic analgesics and adjuvant drugs, psychologic techniques of analgesia, neurostimulating techniques, neuroablative surgical procedures, regional analgesia with local anesthetics or neurolytic blocks. An 82-year old patient had severe pain of the orbital and infraorbital region due to squamous cell carcinoma of the maxillary sinus. We successfully treated this patient with the percutaneous retrogasserian ethanol gangliolysis by a H$\ddot{a}$rtel approach, and the analgesia lasts until the death of the patient.

• Korean Journal of Head & Neck Oncology
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• v.39 no.2
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• pp.65-69
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• 2023

We report a unique case of hemangioma of the nasal cavity in von Hippel-Lindau (VHL) syndrome. A 26-year-old female with VHL syndrome who had previously undergone surgery for pancreatic and adrenal mass presented with a 4-month history of left-sided nasal obstruction. The patient had an expansile mass lesion in the left nasal cavity and an imaging test demonstrated the mass in the left maxillary sinus extending to the nasal cavity. The tumor was removed with an endoscopic prelacrimal recess approach considering the possibility of not only a benign tumor such as hemangioma but also a malignant tumor of the maxillary sinus and histopathologic examination confirmed cavernous hemangioma. This case is the rarely reported manifestation of the paranasal sinus in VHL disease.

• Archives of Craniofacial Surgery
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• v.9 no.1
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• pp.1-7
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• 2008

Osteomas are most often located in the femur, tibia, humerus, spine, and talus. They are rare in the skull. Osteomas in the head and neck regions are benign bone neoplasms usually found in the frontoethmoid area. The developmental theory postulates that osteomas develop at the sites of fusion of tissues different embryological origin such as occur at the junction of the embryonic cartilaginous frontal and ethmoid bones. Trauma and infection have also been implicated as causative factors, but many patients with osteoma deny any preceding history of these. Osteomas are usually produce symptoms primary to cosmetic problems and secondary to pressure on adjacent structures. The objects of this study are from a 5-year period of April of 2002 to April of 2007, consisting of 48 male patients and 52 female. There were 33 cases of frontal bone osteomas, 5 cases of madibular bone osteomas, 5 cases of occipital bone osteomas, 6 cases of symptomatic paranasal sinus osteomas, 48 cases of asymptomatic paranasal sinus osteomas, and 3 cases of mastoid osteomas. We reviewed medical records of patients to find out their presentations, diagnostic considerations, therapeutic options, and outcomes. Patients were followed up six months postoperatively on the average. The authors experienced 48 cases of osteoma in the head and neck lesion, which were removed via direct approach or endoscopic approach. The 100 cases who came to the hospital with or without symptoms after diagnosis healed completely without sequelae. During the follow-up periods, excellent functional and cosmetic results were observed with an inconspicuous scar. There was no specific complications related to this procedure. Results of surgery in most cases were satisfied. We discussed the surgical procedure and the characteristics of the osteomas, and we report several cases with the review of literatures.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.40 no.5
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• pp.253-257
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• 2014

Adenoid cystic carcinoma is a rare epithelial tumour, and comprises about 1% of all malignant tumours of the oral and maxillofacial region. It is a malignant tumour which may develop in the trachea, bronchus, lungs or mammary glands, in addition to the head and neck region. Occurrences in the head and neck are mostly detected in the major salivary gland, oral cavity, pharynx and paranasal sinus where it presents as a slow growing firm nodular swelling. The aim of the article is to highlight the unique presentation of adenoid cystic carcinoma as a solitary ulcer on the floor of the mouth.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.36 no.6
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• pp.543-547
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• 2010

Plasmacytoma is a rare malignant neoplasm in the head and neck region and comprises approximately 3% of all plasma cell tumors. This lesion is a unifocal, monoclonal, neoplastic proliferation of plasma cells that usually arises within the bone. Infrequently, it is observed in soft tissue, in which case, the term extramedullary plasmacytoma is used. Approximately 80-90% of extramedullary plasmacytomas involve the mucos-Associated-Lymphoid Tissue of the upper airways with 75% of these involving the nasal and paranasal regions. The plasmacytoma is usually detected in adult males, with an average age at diagnosis of 55 years. The male-to-female ratio is 3:1.Radiographically, the lesion may be seen as a well-defined, unilocularradioluceny with no evidence of a sclerotic border. Some investigators believe that this lesion represents the least aggressive part of the spectrum of plasma cell neoplasms that extend to multiple myeloma.Therefore, plasma cytoma is believed to have clinical importance. We report a case of extramedullary plasmacytoma in the right maxillary sinus of a 59-year-old male with review of the relevant literature.

• Investigative Magnetic Resonance Imaging
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• v.14 no.1
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• pp.74-77
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• 2010

Granulocytic sarcoma is a manifestation of myelogenous leukemia, which means a solid mass consisting of primitive precursors of the granulocytic series of white blood cells. We present CT and MR imaging findings of bilateral sino-orbital granulocytic sarcoma in a 22-month-old boy. The mass involved bilateral orbital fossa which resulted in bilateral proptosis. Moreover, the mass extended to the almost skull base including paranasal sinuses, maxilla, temporal bone, zygomatic bone, sphenoid bone, ethmoid, and palatine bone. The adjacent dura was continuously thickened and the lower half of cavernous sinus was also involved. The patient was diagnosed as AML (M5) with t(8,21) translocation through a chromosome study from the bone marrow.