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Value of 18F-PSMA-PET/MRI for Assessment of Recurring Ranula. Diagnostics (Basel) 2021; 11:diagnostics11081462. [PMID: 34441395 PMCID: PMC8394896 DOI: 10.3390/diagnostics11081462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/26/2021] [Accepted: 08/10/2021] [Indexed: 11/28/2022] Open
Abstract
We report the case of a 6-year-old patient with suspected recurrence of a plunging ranula in clinical and ultrasonographic examination. Surgical resection of the left submandibular and sublingual glands had already been performed. Since persistent glandular tissue could not be excluded with certainty via MRI, we expanded diagnostics by performing a PET/MRI using a head and neck imaging protocol and the radiotracer 18F-PSMA-1007, which is physiologically expressed by salivary gland tissue. The 18F-PSMA-PET/MRI provided evidence of a cystically transformed, diminishing seroma in the left retro-/submandibular region. No 18F-PSMA expressing glandular tissue could be detected in the area of resection, excluding a relapse of a plunging ranula. As a consequence, we opted for a conservative treatment without further surgical intervention. We conclude that a simultaneous 18F-PSMA-PET/MRI is a comprehensive imaging modality, which can help to rule out persistent salivary tissue and recurring plunging ranula. It is a useful tool to facilitate the decision making of surgical interventions.
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ALTIN F, ALİMOĞLU Y. Retrospective analysis of ranula patients managed with surgical treatment. ENT UPDATES 2020. [DOI: 10.32448/entupdates.688446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Chen F, Barber TW, Tudge S. Recalcitrant plunging ranulas: a new approach to salivary tissue localization using prostate-specific membrane antigen positron emission tomography. ANZ J Surg 2020; 90:E108-E109. [PMID: 32199029 DOI: 10.1111/ans.15824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/26/2020] [Accepted: 03/01/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Fiona Chen
- Department of Ear, Nose and Throat Surgery, Alfred Health, Melbourne, Victoria, Australia
| | - Thomas W Barber
- Department of Nuclear Medicine and PET, Alfred Health, Melbourne, Victoria, Australia.,Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Stephen Tudge
- Department of Ear, Nose and Throat Surgery, Alfred Health, Melbourne, Victoria, Australia
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Varadan M, Chopra A, Sanghavi A, Sivaraman K, Gupta K. Etiology and clinical recommendations to manage the complications following lingual frenectomy: A critical review. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2019; 120:549-553. [DOI: 10.1016/j.jormas.2019.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/07/2019] [Accepted: 06/18/2019] [Indexed: 11/25/2022]
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Percutaneous treatment of ranulas: ultrasound-guided drainage with salivary gland chemical ablation. Pediatr Radiol 2019; 49:801-807. [PMID: 30815715 PMCID: PMC6614164 DOI: 10.1007/s00247-019-04356-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 01/20/2019] [Accepted: 02/14/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Ranulas are salivary pseudocysts in the floor of the mouth adjacent to damaged salivary glands. Current surgical management is drainage of the ranula with removal of the offending gland. An analogous percutaneous procedure could potentially offer similar treatment efficacy in a more minimally invasive way. OBJECTIVE To evaluate the outcomes of a cohort of patients with ranulas treated with percutaneous ranula aspiration and chemical ablation of the source salivary gland to see whether this technique could be proposed as a minimally invasive treatment alternative. MATERIALS AND METHODS This retrospective single-center study evaluated 24 patients treated percutaneously for ranulas between January 2004 and December 2014. All patients were treated with percutaneous ranula aspiration and chemical ablation of the offending salivary gland. Treatment success and any complications were recorded. RESULTS Complete ranula eradication was successfully accomplished in 87.5% of the patients with no complications. CONCLUSION Initial results suggest that our technique of percutaneous aspiration of ranulas and chemical ablation of the source salivary gland is safe and effective.
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Srivastava S, Kharbanda S, Pal US, Shah V. Applications of botulinum toxin in dentistry: A comprehensive review. Natl J Maxillofac Surg 2016; 6:152-9. [PMID: 27390488 PMCID: PMC4922224 DOI: 10.4103/0975-5950.183860] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The horizons of treatment options in dentistry are broadening rapidly. In this scenario, applications of unconventional treatment options like use of botulinum toxin (BT) are gaining momentum. The use of BT has been popularly accepted in esthetic procedures like management of facial wrinkles; however, it has been documented to be successful in a variety of conditions. Of particular interest to this paper are applications of BT in the maxillofacial region, concerned to dentistry. BT offers a transient, reversible, relatively safe treatment option to many conditions of interest to a dental practitioner. Dental surgeons by their virtue of being extensively aware of the anatomy of faciomaxillary region are a potential pool of operators who can use BT in their armamentarium with minor skill enhancement and thus widen the perspective of alternative, minimally invasive options to refractory conditions or invasive protocols.
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Affiliation(s)
- Sanjeev Srivastava
- Department of Conservative Dentistry and Endodontics, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Smriti Kharbanda
- Conservative Dentistry and Endodonitcs, Clove Dental, New Delhi, India
| | - U S Pal
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Vinit Shah
- Department of Prosthodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
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Iro H, Zenk J. Salivary gland diseases in children. GMS CURRENT TOPICS IN OTORHINOLARYNGOLOGY, HEAD AND NECK SURGERY 2014; 13:Doc06. [PMID: 25587366 PMCID: PMC4273167 DOI: 10.3205/cto000109] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Salivary gland diseases in children are rare, apart from viral-induced diseases. Nevertheless, it is essential for the otolaryngologist to recognize these uncommon findings in children and adolescents and to diagnose and initiate the proper treatment. The present work provides an overview of the entire spectrum of congenital and acquired diseases of the salivary glands in childhood and adolescence. The current literature was reviewed and the results discussed and summarized. Besides congenital diseases of the salivary glands in children, the main etiologies of viral and bacterial infections, autoimmune diseases and tumors of the salivary glands were considered. In addition to the known facts, new developments in diagnostics, imaging and therapy, including sialendoscopy in obstructive diseases and chronic recurrent juvenile sialadenitis were taken into account. In addition, systemic causes of salivary gland swelling and the treatment of sialorrhoea were discussed. Although salivary gland diseases in children are usually included in the pathology of the adult, they differ in their incidence and sometimes in their symptoms. Clinical diagnostics and especially the surgical treatment are influenced by a stringent indications and a less invasive strategy. Due to the rarity of tumors of the salivary glands in children, it is recommended to treat them in a specialized center with greater surgical experience. Altogether the knowledge of the differential diagnoses in salivary gland diseases in children is important for otolaryngologists, to indicate the proper therapeutic approach.
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Affiliation(s)
- Heinrich Iro
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Erlangen, University of Erlangen-Nuremberg, Germany
| | - Johannes Zenk
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Erlangen, University of Erlangen-Nuremberg, Germany
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Sathanantham DK, Shah GB, Ulüalp S. Rapid development of a simple ranula in a child. Ann Otol Rhinol Laryngol 2014; 124:322-5. [PMID: 25277701 DOI: 10.1177/0003489414553653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE A simple ranula is a gradually progressive, benign condition of the salivary gland. The report here describes a very rare case of a simple ranula enlarging in an acute fashion, resulting in airway obstruction. CASE REPORT A 7-year-old girl presented with swelling in the floor of the mouth, pushing the tongue upward and backward, requiring immediate nasotracheal intubation. Magnetic resonance imaging suggested a simple ranula requiring urgent surgery. The patient was followed up 4 weeks after discharge, at which time she was doing well. CONCLUSION To the best of the authors' knowledge, this is the first case reported of a simple ranula presenting in an acute fashion, leading to airway compromise in a pediatric patient. The literature is reviewed and features of diagnosis and treatment are presented.
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Affiliation(s)
- Dinesh Kumar Sathanantham
- Department of Otolaryngology-Head & Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA Melmaruvathur Adhiparasakthi Institute of Medical Sciences and Research (MAPIMS), Melmaruvathur, Tamil Nadu, India
| | - Gopi B Shah
- Department of Otolaryngology-Head & Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Seckin Ulüalp
- Department of Otolaryngology-Head & Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Garofalo S, Mussa A, Mostert M, Suteu L, Vinardi S, Gamba S, Lonati L, Teruzzi E, Tommasoni N, Bassignana M, Masi G, Marenzi G, Sammartino G, Mortellaro C. Successful medical treatment for ranula in children. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 117:e289-97. [DOI: 10.1016/j.oooo.2012.07.430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 06/12/2012] [Accepted: 07/10/2012] [Indexed: 10/27/2022]
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Woo SH, Chi JH, Kim BH, Kwon SK. Treatment of intraoral ranulas with micromarsupialization: Clinical outcomes and safety from a phase II clinical trial. Head Neck 2014; 37:197-201. [DOI: 10.1002/hed.23579] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2013] [Indexed: 11/08/2022] Open
Affiliation(s)
- Seung Hoon Woo
- Department of Otolaryngology; Gyeongsang National University; Jinju Republic of Korea
- Institute of Health Sciences, Gyeongsang National University; Jinju Republic of Korea
| | - Jun Hyuk Chi
- Department of Otorhinolaryngology - Head and Neck Surgery; Dongguk University Ilsan Hospital; Goyang Republic of Korea
| | - Bo Hae Kim
- Department of Otorhinolaryngology - Head and Neck Surgery; Dongguk University Ilsan Hospital; Goyang Republic of Korea
| | - Seong Keun Kwon
- Department of Otorhinolaryngology - Head and Neck Surgery; Seoul National University; Seoul Republic of Korea
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Albsoul NM, Obeidat FO, Altaher RN, Jubouri SA, Hadidy AM. Recurrent right sublingual ranula, concomitant with ipsilateral submandibular salivary gland aplasia. Int J Surg Case Rep 2012; 4:229-31. [PMID: 23291329 DOI: 10.1016/j.ijscr.2012.10.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Revised: 10/06/2012] [Accepted: 10/08/2012] [Indexed: 10/27/2022] Open
Abstract
INTRODUCTION Oral ranula is a retention cyst that arises from the salivary gland with recurrence rate of up to 25% after complete excision of ranula and up to 2% in case of complete excision of ranula and sublingual gland. Major salivary gland aplasia is a rare finding that is usually associated with other developmental anomalies. PRESENTATION OF CASE We report a 15-year-old female patient presented with recurrent intraoral cystic swelling that was documented to be sublingual ranula. CT scan revealed also the absence of right submandibular salivary gland with persistence of its Whartons duct. This combination has never been reported previously. DISCUSSION The combination of recurrent sublingual ranula associated with aplasia of ipsilateral submandibular salivary gland and persistence of Whartons duct has never been reported before in the literature, a finding that may provide the base for future research. CONCLUSION Further research may prove similar associations between oral ranula and salivary gland aplasia, which may have clinical implications on diagnostic and management plan decisions.
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Affiliation(s)
- Nader M Albsoul
- Department of Surgery, Division of Head & Neck Surgery, University Of Jordan Hospital, Faculty of Medicine, Amman, Jordan.
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Sigismund PE, Bozzato A, Schumann M, Koch M, Iro H, Zenk J. Management of ranula: 9 years' clinical experience in pediatric and adult patients. J Oral Maxillofac Surg 2012; 71:538-44. [PMID: 23010374 DOI: 10.1016/j.joms.2012.07.042] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 07/10/2012] [Accepted: 07/12/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE The aim of the present study was to evaluate the long-term results in the authors' department in the management of patients with oral and plunging ranulas. A specific diagnostic and therapeutic approach is suggested based on these data and data from the literature. MATERIALS AND METHODS A retrospective analysis of 65 patients with a final diagnosis of ranula was carried out. The medical records were evaluated for the principal demographic, clinical, diagnostic, and therapeutic data. Statistical analysis was used to compare outcomes of the different treatments. RESULTS Treatments that included complete sublingual gland excision were associated with the lowest recurrence rate (3.6%), followed by partial sublingual gland excision (9.1%), marsupialization (13%), and ranula excision (36.7%). Nine patients (13.8%) had recurrences. A statistically significant difference was observed (P = .01) in the recurrence rate between complete sublingual gland excision and ranula excision alone. Complications developed in 7 patients (10.8%). Ultrasonography performed in all patients showed an intimate relation among the cyst, mylohyoid muscle, and sublingual gland. Dehiscence of the mylohyoid muscle was noted in some cases. CONCLUSIONS The surgical experience in the authors' department confirms the different treatments that are offered for ranula. Sublingual gland excision should be the preferred treatment, but marsupialization may be useful as an alternative minimally invasive procedure, with a success rate higher than 85% and no risk of increased complications if revision surgery is needed. Ultrasound is the recommended diagnostic tool, in addition to the clinical examination, for the differential diagnosis and during follow-up.
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Affiliation(s)
- Paolo Enrico Sigismund
- Department of Specialized Surgical Sciences, Università degli Studi di Milano, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
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Acute presentation of a plunging ranula causing respiratory distress: case report. The Journal of Laryngology & Otology 2012; 126:861-3. [PMID: 22583866 DOI: 10.1017/s0022215112000862] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE A plunging ranula is an uncommon cause of neck swelling which typically presents in a gradually progressive fashion. This report describes a rare case of acute presentation of a plunging ranula. The condition progressed rapidly to respiratory distress, requiring urgent surgery. CASE REPORT A 14-year-old male student presented with a rapidly enlarging neck swelling associated with a sublingual swelling. Computed tomography suggested the diagnosis of plunging ranula. Several hours after admission, the neck swelling became very tense and the sublingual swelling enlarged dramatically. The tongue was pushed upwards and backwards by the sublingual swelling, causing respiratory embarrassment and requiring urgent surgery. Four months after surgery, there was no evidence of recurrence. CONCLUSION To the best of the author's knowledge, this is the first case report of a plunging ranula progressing acutely and rapidly to cause respiratory compromise. The literature is reviewed and pertinent features concerning the diagnosis and management of plunging ranula are presented.
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Suresh BV, Vora SK. Huge plunging ranula. J Maxillofac Oral Surg 2011; 11:487-90. [PMID: 24293946 DOI: 10.1007/s12663-010-0154-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Accepted: 12/09/2010] [Indexed: 10/18/2022] Open
Affiliation(s)
- B Venkat Suresh
- Department of oral and maxillofacial surgery, Gitam dental college and hospital, Visakhapatnam, 530045 Andhra Pradesh India
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Harrison JD. Modern management and pathophysiology of ranula: literature review. Head Neck 2011; 32:1310-20. [PMID: 20054853 DOI: 10.1002/hed.21326] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND There is a lack of consensus about the appropriate treatment of ranula. The objective of the present investigation was to produce a scientific basis for treatment. METHODS A review of the relevant literature is interpreted in the light of improved knowledge about the local anatomy and the pathophysiology of the salivary glands. RESULTS The oral and plunging ranulas are cystic extravasation mucoceles that arise from the sublingual gland and usually from a torn duct of Rivinus. The sublingual gland is a spontaneous secretor and the salivary flow is resistant to obstruction, which is caused by fibrosis induced by the extravasation. The submandibular gland is not a spontaneous secretor, is less resistant, and does not give rise to ranulas. CONCLUSIONS Effective treatment is removal of the involved unit of the sublingual gland or inducing sufficient fibrosis to seal the leak through which the mucus extravasates.
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Affiliation(s)
- John D Harrison
- Department of Oral Pathology, King's College London Dental Institute at Guy's, King's College and St Thomas' Hospitals, London, United Kingdom
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A retrospective study of ranula in two centres in Malaysia. J Maxillofac Oral Surg 2010; 8:316-9. [PMID: 23139535 DOI: 10.1007/s12663-009-0077-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Accepted: 11/02/2009] [Indexed: 10/19/2022] Open
Abstract
INTRODUCTION Ranula is a mucous extravasation cyst which occurs as a result of trauma or obstruction of the sublingual or minor salivary gland or the duct itself. PATIENTS AND RESULTS 14 patients were seen at Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur and Hospital Tunku Ampuan Afzan, Kuantan, Malaysia between 2000 to 2006. There were six cases of intra-oral ranula and eight plunging ranula. Twelve patients underwent surgical intervention while two refused surgery. Four patients (33.3%) from those who had surgical intervention returned with recurrence; two (16.7%) had marsupialization and the other two (16.7%) had excision of the pseudocyst intraorally. CONCLUSION Excision and marsupialization remain as the treatment of choice in our centres.
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Seo JH, Park JJ, Kim HY, Jeon SY, Kim JP, Ahn SK, Hur DG, Kim DW, Lee JS. Surgical management of intraoral ranulas in children: an analysis of 17 pediatric cases. Int J Pediatr Otorhinolaryngol 2010; 74:202-5. [PMID: 20005579 DOI: 10.1016/j.ijporl.2009.11.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2009] [Revised: 11/12/2009] [Accepted: 11/20/2009] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The preferred treatment of pediatric intraoral ranulas remains controversial. We present our experience with ranulas at the Gyeongsang National University Hospital and review the literature. METHODS The study involved 17 children under 15 years of age who visited our hospital from 2001 to 2008 and were diagnosed with a ranula exceeding 2 cm in diameter. The age and gender of the patients, the surgical procedures, presurgical observation period, postsurgical follow-up period, and complications of each case were determined. The unruptured specimens were all subjected to detailed pathological analysis. RESULTS The patients were on average 9.3 years and there were 10 girls and 7 boys. Spontaneous resolution was not detected in any of the cases during the presurgical observation period. Indeed, in two cases, the ranula had increased in size. The ranula and sublingual gland (SG) were resected in all cases. The average operation time was 1h. Recurrence and complications were not detected in any of the cases. Pathological analyses revealed that there was no communication of the ranula with the SG in any of the cases. CONCLUSIONS Our experiences suggest that the presurgical observation period need not be longer than 3 months and that the resection of ranulas along with the ipsilateral SG is a safe and effective primary treatment for symptomatic pediatric intraoral ranulas that exceed 2cm in diameter.
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Affiliation(s)
- Ji Hyun Seo
- Department of Pediatrics, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, South Korea
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Syebele K. Regression of both oral mucocele and parotid swellings, following antiretroviral therapy. Int J Pediatr Otorhinolaryngol 2010; 74:89-92. [PMID: 19879006 DOI: 10.1016/j.ijporl.2009.09.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 09/25/2009] [Accepted: 09/29/2009] [Indexed: 01/19/2023]
Abstract
HIV-salivary gland associated disease is a well accepted concept in the HIV-related literature. Parotid swellings, especially in its cystic benign lymphoepithelial form, have been largely reported. Oral mucoceles (ranulas) were also associated with HIV in some publications. The exact nature of this link between mucoceles and HIV is still to be clarified. The mainstream treatment of most of parotid pathologies and oral mucoceles remains surgical approach. Strong evidences do, however, exist about lymphopithelial lesions of parotid glands that have been successfully treated with antiretroviral drugs. We present a case of intraoral mucocele, coexisting with bilateral parotid gland lymphoepithelial lesions, on a 2-year-old HIV-positive patient. Both parotid gland swellings and the sublingual mucocele have completely regressed following antiretroviral therapy. No surgical intervention was required. Conversely to benign lymphoepithelial lesions of parotid glands, the regression of oral mucocele on HIV-positive patient, following antiretroviral drugs therapy appears to be a rare phenomenon.
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Affiliation(s)
- Kabunda Syebele
- Oral and Dental hospital, Department of Maxillofacial and Oral Surgery, University of Pretoria, PO Box 1266, Pretoria 0001, South Africa.
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