Alveolar Soft Part Sarcoma of the Tongue: A Rare Tumor at an Unusual Location.

Alveolar soft part sarcoma (ASPS) is a rare type of soft tissue sarcoma that typically affects adolescents and young adults, though it can occur at any age. We report a case of ASPS of the tongue, which is extremely rare at this location. The patient presented with a polypoidal lesion on the tongue, a biopsy of which showed granular and alveolar morphology. A definitive diagnosis was not rendered due to limited tissue. The case was discussed with the treating surgeon, and excision was recommended with clear margins. Excision of the lesion showed typical ASPS. A TFE-3 immunohistochemical stain was done, which showed strong immunoreactivity, thereby confirming the diagnosis of ASPS. This tumour is rare, and its presence in the tongue makes it extremely infrequent.

Clinical Characteristics of COVID-19 from the Otorhinolaryngologist's Perspective: First Report from Oman, Middle East.

To study the otorhinolaryngological clinical characteristics of COVID-19 positive patients. A prospective cross sectional study on sixty five patients who were SARS-CoV-2 PCR positive, and completed 14 days of isolation period were surveyed with a questionnaire. The responses were evaluated and assessed. Sixty five SARS-Cov-2 PCR positive cases were included in the study. There were 57 (87.6%) males and 8 (12.3%) females. Thirty five (53.8%) were in home isolation, whereas, 30 (46.2%) were under institutional care. Forty five patients (72.6%) presented with mild symptoms, and 4 (6.4%) developed moderate symptoms. Thirteen (21%) were asymptomatic. Overall, 46 patients (70.7%) presented with upper airway symptoms with or without general symptoms. More than half of the patients experienced pharyngodynia or sorethroat, smell and taste dysfunction as common symptoms (66.7%, 61.4% and 50.7% respectively). Severe headache was noticed by eighteen (27.7%) patients. Other respiratory symptoms such as nasal congestion, rhinorrhoea, sneezing, facial pain, etc. were present with less frequency. In more than half of the patients (61.5%), all the symptoms recovered within 5 days, in 12 (18.5%) between 5 and 8 days, and in 9 (13.8%), between 9 and14 days. However, in four patients, symptoms lasted for 28-30 days. In seven patients (10.7%), symptoms recurred after the period of isolation, however, the retest was negative. Fever, cough and or shortness of breath are the commonly reported prominent symptoms of COVID-19, however, there is a changing trend of clinical presentation towards variable otorhinolaryngologic manifestations. Pharyngodynia, taste and smell dysfunctions are common in patients with COVID-19, and could represent potential characters.

Bilateral Chylothorax Following Total Thyroidectomy with Neck Dissection for Papillary Thyroid Cancer: Case report.

Bilateral chylothorax is a rare condition that occurs after a thyroidectomy and neck dissection, which can lead to severe morbidity and, potentially, death, if not managed properly. We report a rare complication of neck surgery and subsequent bilateral pleural effusion in a 35-year-old female patient who presented at Sultan Qaboos University Hospital in 2018 with shortness of breath and respiratory distress. The bilateral pleural effusion and related symptoms occurred one week after a total thyroidectomy with central and left lateral neck dissection. The patient was managed conservatively and subsequently recovered.

Difficult intubation due to undiagnosed congenital tracheal web.

Congenital tracheal web is a rare anomaly, usually misdiagnosed as asthma or chronic obstructive lung diseases. Clinical suspicion and appropriate diagnostic imaging combined with endoscopic examinations are the mainstay approach. Symptoms of stridor, dyspnea and recurrent lower airway infections are the most common clinical presentations. We report a case of difficult intubation in a child due to an undiagnosed congenital tracheal web.

Clinically significant anatomical variants of the paranasal sinuses.

OBJECTIVE: Anatomic structural variations of the paranasal sinuses have a practical significance during surgical procedures conducted on the sinuses by otolaryngologists. This study aims to evaluate the prevalence of clinically significant anatomical variations of the paranasal sinuses. METHODS: A prospective analysis of 435 computed tomography (CT) examinations of adult Omani patients was conducted to determine the prevalence of clinically significant anatomical variations of the paranasal sinuses. A total of 360 CT scans were included from January 2009 to January 2010. RESULTS: The findings showed abnormal Agger nasi cells in 49% of cases (95% CI: 44-54%), concha bullosa in 49% (95% CI: 44-54%), Haller cells in 24% (95% CI: 18-31%), asymmetry in anterior ethmoidal roof 32% (CI: 29-37%), Onodi cells in 8% (CI: 5%-10%). The type of skull base were as follows; Type 1 was 30% (n=107; 95% CI: 25-35%), Type 2 was 34% (n=123; 95% CI: 29-39), and Type 3 was 36% (n=130; 95% CI: 31-41%). Many other surgically significant anatomical variations in small numbers (1-3) were incidentally identified. CONCLUSION: Knowledge of the presence of anatomical variations of the sinuses has a clinical significance as it minimizes the potential for surgical complications. There is an ethnical difference in the prevalence of anatomical variations. Further studies of anatomical variations with clinical disease correlations are needed.

Sublingual Gland Schwannoma: A Rare Case at an Unusual Site.

Intraoral schwannoma is a rare entity. Tongue has been reported as the most common oral site. Those involving salivary glands are unusual and parotid gland is the usual site. Literature search revealed only one case of schwannoma involving the sublingual gland. Hence, this is a presentation of another case of sublingual gland schwannoma with a review of literature, in a young female of 21 years old.

Allergic rhinitis and associated comorbidities: prevalence in oman with knowledge gaps in literature.

OBJECTIVES: Allergic rhinitis (AR) is a global health problem and its impact on health related quality of life for patients is substantial, and the economic impact often underestimated. The prevalence of allergic rhinitis in Oman is unknown. This study aimed to estimate the prevalence of AR and associated co-morbidities among adults in Oman. Its secondary objective was to identify knowledge gaps in the literature with the aim of directing future research. METHODS: A prospective, cross-sectional study of patients who presented to the outpatient otolaryngology clinic at Sultan Qaboos University Hospital with nasal symptoms between June 2010 and June 2011 was conducted. RESULTS: A total of 887 patients were seen with nasal complaints. Among them 127 patients were diagnosed with non-infective rhinitis, the mean age of presentation was 27 years. AR was noted in 48% of patients, and non-allergic rhinitis in 52%. The prevalence of AR was 7%, with females being more affected than males, and age ranging from 18 to 51 years. Prevalence of perennial AR was 84% compared to seasonal AR which was 16%. The most common perennial antigens were house dust mites (80%) followed by cockroaches (67%). All patients diagnosed with seasonal AR were found to be sensitive to Russian thistle. The prevalence of chronic rhinosinusitis in patients with AR was 34%. CONCLUSION: The prevalence of AR in the adult population presenting with nasal symptoms was found to be 7%, with associated chronic rhinosinusitis present in a third of these patients. However, there appears to be substantial knowledge gaps regarding the association of other comorbidities, like otitis media, bronchitis and bronchial asthma, the long-term outcomes of medical management, and indication of surgical intervention in patients with AR. Future research in AR among Omani patients should aim to address these issues.

Catecholamine-secreting carotid body paraganglioma: successful preoperative control of hypertension and clinical symptoms using high-dose long-acting octreotide.

UNLABELLED: A 48-year-old hypertensive and diabetic patient presented with a 10-year history of progressive right facial pain, tinnitus, hearing loss, sweating, and palpitations. Investigations revealed a 5.6 cm vascular tumor at the carotid bifurcation. Her blood pressure (BP) was 170/110, on lisinopril 20 mg od and amlodipine 10 mg od and 100 U of insulin daily. A catecholamine-secreting carotid body paraganglioma (CSCBP) was suspected; the diagnosis was confirmed biochemically by determining plasma norepinephrine (NE) level, 89 000 pmol/l, and chromogranin A (CgA) level, 279 µg/l. Meta-iodobenzylguanidine and octreotide scanning confirmed a single tumor in the neck. A week after giving the patient a trial of octreotide 100 µg 8 h, the NE level dropped progressively from 50 000 to 25 000 pmol/l and CgA from 279 to 25 µg/l. Treatment was therefore continued with labetalol 200 mg twice daily (bid) and long-acting octreotide-LA initially using 40 mg/month and later increasing to 80 mg/month. On this dose and with a reduced labetalol intake of 100 mg bid, BP was maintained at 130/70 and her symptoms resolved completely. CgA levels returned to normal in the first week and these were maintained throughout the 3 month treatment period. During tumor resection, there were minimal BP fluctuations during the 10 h procedure. We conclude that short-term high-dose octreotide-LA might prove valuable in the preoperative management of catecholamine-secreting tumors. To the best of our knowledge, this is the first report on the successful use of octreotide in a CSCBP. LEARNING POINTS: The value of octreotide scanning in the localization of extra-adrenal pheochromocytoma.Control of catecholamine secretion using high-dose octreotide.This is a report of a rare cause of secondary diabetes and hypertension.

Radiological localization of Schneiderian papilloma.

BACKGROUND: It has been recently reported that the site of attachment of Schneiderian papillomas can be predicted with high accuracy on preoperative computed tomography (CT) scans using bony osteitic changes as an indicator. The objective of this study is to evaluate, in a blinded fashion, the reliability of the osteitis sign at predicting the site of attachment of Schneiderian papillomas. METHODS: A retrospective cohort study of patients who underwent endoscopic surgical resection for inverted papilloma (IP) or cylindrical papilloma between September 2002 and September 2009 in a tertiary care rhinology center was carried out. The preoperative sinus CT scans were collected and reviewed by a fellowship-trained and experienced head and neck radiologist who was blinded to the intraoperative findings. The radiologist attempted to identify and grade bony osteitic changes in the sinuses. The radiological findings were then correlated with the actual site of attachment reported by the surgeon in the operative report. RESULTS: A total of 34 patients were evaluated. Six (18%) patients had a single site of osteitis and 28 (82%) were found to have multiple sites of osteitis. The sensitivity and specificity of the radiological prediction based on the degree of osteitis was found to be 74% (46.5-90.3%) and 0% (0-17%), respectively. The predictive value of the radiological localization was 41%. CONCLUSION: Osteitic changes are very common nonspecific findings on CT scans of patients with Schneiderian papillomas. Their presence as well as the degree of osteitis did not allow preoperative localization of tumor attachment.

Quantitative proteomics of nasal mucus in chronic sinusitis with nasal polyposis.

BACKGROUND: Proteomics has been used as a tool for identification of the protein content of nasal mucus in diseased and healthy subjects. Thirty-five proteins in both chronic rhinosinusitis (CRS) and control groups were identified in a previous study by our group using conventional mass spectrometry analysis. Ten of these proteins were related to innate and acquired immunity and showed differences in expression between the two groups. OBJECTIVE: To investigate the quantitative differential expression of specific nasal mucus proteins previously identified by our group using multiple reaction monitoring (MRM) mass spectrometry in patients with CRS with nasal polyposis compared with normal subjects. METHODS: In a prospective case control study, nasal mucus from patients and control subjects was collected, desalted, resolubilized, and digested using proteolytic enzymes. Previously identified nasal mucus proteins with differential expression in CRS patients were targeted and quantitatively measured using MRM mass spectrometry. RESULTS: Analysis of 12 samples (6 patients and 6 controls) identified 7 of the 10 targeted proteins, many of which were related to innate and acquired immunity. Quantitative analysis showed differential expression in CRS patients compared with control subjects. A detailed analysis and characterization of the protein isolates is outlined. CONCLUSION: This is the first proteomics study of nasal mucus in CRS with polyposis using the MRM technique. The findings suggest that innate and acquired immunity may play a role in the pathophysiology of CRS. Future steps in evaluating the protein characteristics of the mucus of CRS patients are aimed at developing biomarkers and potentially targeted therapies.