Mucocele formation after surgical treatment of inverted papilloma of the frontal sinus drainage pathway.

BACKGROUND: Inverted papillomas (IP) inserted in the frontal sinus and/or recess may be treated by using an endoscopic endonasal or an external approach. There are still few data available on this uncommon localization of IPs. OBJECTIVE: To report our experience in the management of IP of the frontal drainage pathway, to describe a previously unreported specific complication of this surgery, and to discuss the optimal surgical strategy. METHODS: A retrospective study of the patients at a tertiary care center between 2004 and 2014 who were operated on for an IP with an insertion in the frontal recess and/or the frontal sinus. Clinical charts were reviewed for demographics, clinical presentation, imaging findings, surgical treatment, and outcome. RESULTS: Twenty-seven patients were included. Patients were operated on by using a purely endoscopic approach (Draf procedure; n = 14 [51.9%]) when the IP was inserted in the frontal recess and/or the frontal sinus infundibulum (with a nasoseptal-septoturbinal flap placed on the exposed bone in four patients), or by using a combined endoscopic and open approach (osteoplastic flap procedure; n = 13 [48.1%]) when the IP invaded the frontal sinus beyond the infundibulum. There were two recurrences (7.4%), with a mean follow-up of 40 months (range, 9-123 months). During follow-up, single or multiple iatrogenic frontal mucoceles were observed in 10 patients (37%), with a mean delay of 60 months (range, 27-89 months). These mucoceles occurred both after using endoscopic (n = 3) or combined (n = 7) approaches, and required a surgical treatment in eight patients. No postoperative mucocele was observed in the four patients who had had a septal flap. CONCLUSION: In our experience, an approach based on the localization of the IP insertion provided acceptable results in terms of the local control rate (92.6%). However, the significant rate of postoperative mucoceles indicated that specific strategies (such as local flaps) still need to be developed to avoid this iatrogenic complication.

Remoção de mucocele com laser diodo: relato de caso clínico em paciente infantil / Mucocele removal with laser diode: case report on child patient

A mucocele é uma das lesões benignas que mais afeta a cavidade bucal. O laser de diodo de alta potência é uma opção que substitui ou associa procedimentos complementares aos processos convencionais,tendo mais conforto pós-cirúrgico. O objetivo deste trabalho foi relatar o caso clínico de remoção de mucocele de lábio inferior em paciente infantil utilizando laser de diodo de alta potência. Paciente do sexo feminino, 8 anos de idade, compareceu à clínica de Odontopediatria da Faculdade de Odontologia São Leopoldo Mandic, em Campinas, relatando incômodo no lábio inferior, com a presença de uma “bolinha”. Ao exame clínico observou-se tumefação de consistência mole, flutuante, translúcida, com coloração similar à mucosa bucal. Após diagnóstico, o tratamento baseou-se na remoção cirúrgica com auxílio de laser de diodo de alta potência. Inicialmente foi realizada a anestesia infiltrativa ao redor da lesão, e então a remoção cirúrgica foi conduzida, juntamente com as glândulas acessórias para evitar recidiva, com uso do laser de diodo de alta potência. Ao fim do procedimento foi possível observar que a paciente saiu satisfeita, sendo o prognóstico favorável. No retorno de 30 dias, observou-se que não houve recidiva da lesão. O laser dediodo de alta potência, uma vez que apresenta uma série de benefícios, como excelente hemostasia, sem a necessidade de sutura, redução do edema e dor, cicatrização mais rápida e redução do tempo para realizar o procedimento, parece ser uma opção para remoção de mucocele em Odontopediatria.

Mucocele is a benign lesion that affects the oral cavity. The high power diode laser is an option as anadditional method or as a substitute to conventional procedures, with more post-surgical comfort. The objective of this study was to report a case of lower lip mucocele removal in a child patient using highpower diode laser. A female patient, 8 years old, attended the Clinic of Pediatric Dentistry, São Leopoldo Mandic School of Dentistry in Campinas, reporting discomfort in the lower lip, with the presence of a“ball”. On clinical examination it was observed swelling of soft consistency, floating, translucent, with coloring similar to the buccal mucosa. After diagnosis, the treatment was based on surgical removal with high power diode laser assistance. Initially infiltration anesthesia around the lesion was performed,and then the surgical removal was conducted, along with the accessory glands to prevent recurrence,with high power diode laser use. At the end of the procedure it was observed that the patient leftsatisfied, with a favorable prognosis. At the 30-day post-operative return, it was observed that there was no recurrence. The high power diode laser, since it presents a series of benefits such as excellen the mostasis, without the need for sutures, reduction of swelling and pain, faster healing, reducing the time to perform the procedure, it seems to be an option for removal of mucocele in pediatric dentistry.

'Canalization' of the frontal sinus: a functional approach for the management of post-traumatic sinusitis with lateral bony septa. Report of two cases and long-term follow-up.

The patency of the naso-frontal duct is a key issue in the surgical management of chronic frontal sinusitis. Most of the current operative techniques only provide access to the paramedian portions of the frontal sinus. A canalization approach that allows a functional frontal sinus to be maintained while providing good access to the most lateral areas of the sinus is described herein. Two cases of severe post-traumatic frontal sinusitis, operated on successfully by canalization method based on the conservation of the frontal sinus and the maintenance of the patency of the naso-frontal duct, using both open and endonasal approaches, are reported. One patient was followed-up for 8 years and the other for 7 months. Canalization requires validation in a larger series. This approach provides an alternative to both cranialization and strictly endoscopic methods in lateralized frontal sinus retentions and allows mucocele to be avoided.

Early Practice: External Sinus Surgery and Procedures and Complications.

External approaches to the paranasal sinuses are rarely used in the endoscopic era. However, their indications for use have not changed, and in every surgeon's career those indications may present themselves. For residents training in the endoscopic era, these procedures are also very rarely seen. In this article, the external approaches to the maxillary, ethmoid, and frontal sinuses are described: their original descriptions, modern use, and potential complications. It is hoped that this article will serve to instruct residents and practitioners alike in these techniques.

Cranialization of the frontal sinus for secondary mucocele prevention following open surgery for benign frontal lesions.

OBJECTIVE: To compare frontal sinus cranialization to obliteration for future prevention of secondary mucocele formation following open surgery for benign lesions of the frontal sinus. STUDY DESIGN: Retrospective case series. SETTING: Tertiary academic medical center. PATIENTS: Sixty-nine patients operated for benign frontal sinus pathology between 1994 and 2011. INTERVENTIONS: Open excision of benign frontal sinus pathology followed by either frontal obliteration (n = 41, 59%) or frontal cranialization (n = 28, 41%). MAIN OUTCOME MEASURES: The prevalence of post-surgical complications and secondary mucocele formation were compiled. RESULTS: Pathologies included osteoma (n = 34, 49%), mucocele (n = 27, 39%), fibrous dysplasia (n = 6, 9%), and encephalocele (n = 2, 3%). Complications included skin infections (n = 6), postoperative cutaneous fistula (n = 1), telecanthus (n = 4), diplopia (n = 3), nasal deformity (n = 2) and epiphora (n = 1). None of the patients suffered from postoperative CSF leak, meningitis or pneumocephalus. Six patients, all of whom had previously undergone frontal sinus obliteration, required revision surgery due to secondary mucocele formation. Statistical analysis using non-inferiority test reveal that cranialization of the frontal sinus is non-inferior to obliteration for preventing secondary mucocele formation (P<0.0001). CONCLUSION: Cranialization of the frontal sinus appears to be a good option for prevention of secondary mucocele development after open excision of benign frontal sinus lesions.

Contemporary management of traumatic fractures of the frontal sinus.

This article discusses the classic and contemporary management strategies for treating frontal sinus fractures. The goals of management of frontal sinus fractures are to create a safe sinus by minimizing the likelihood of early and late complications while preserving the function of the sinus and maintaining the cosmetic appearance of the upper face. The assessment and classification of patients with frontal sinus injuries, their management, and the treatment of complications are reviewed.

State of the art in craniomaxillofacial trauma: frontal sinus.

PURPOSE OF REVIEW: Many of the successes and controversies in endoscopic management of craniofacial trauma are exemplified in the management of frontal sinus trauma. RECENT FINDINGS: The effort to reduce surgical morbidity and to optimize reconstruction of craniomaxillofacial injuries has resulted in the development of less invasive surgical approaches and in the use of computer image guidance in surgical planning and execution. Minimally invasive management of frontal sinus inflammatory disease has gained wide acceptance. The technology and techniques applied to surgery of the floor of the frontal sinus is now being applied to the management of frontal sinus trauma. A paradigm shift in the treatment of frontal sinus trauma may be underway. SUMMARY: An increasing scope of less severe injuries is being managed expectantly with endoscopic frontal sinus surgery available for salvage. There may be an overall decrease in the most severe frontal sinus injuries owing to enforcement of seatbelt and airbag usage. And the most severe injuries are often best managed through cranialization with anterior skull base reconstruction. Thus, the role for frontal sinus obliteration purely to obviate fractures of the frontal sinus outflow tract may be vanishing.

Temporomandibular joint ankylosis and salivary mucocele in a cat: case report

An approximately 1.5-year-old, not neutered mixed breed cat was referred for evaluation of inability to open its mouth, and soft tissue swelling around the intermandibular region. Both signs were present since the cat was adopted, 1 year before presentation. The cause of the signs was not determined prior to referral. Based on the physical and radiographic examinations, left temporomandibular joint ankylosis and salivary mucocele were diagnosed. The lateral aspect of the condyloid process of the left mandible was removed and the salivary mucocele was treated by right mandibular and sublingual gland resection and drainage of the mucocele. After surgery, the cat showed good functional use of the mandible without discomfort.

Relata-se o caso de um gato de aproximadamente um ano e meio de idade, macho, não castrado, que foi encaminhado por apresentar incapacidade de abrir a boca e aumento de volume flutuante na região intermandibular. As lesões estavam presentes há um ano, desde quando o gato foi encontrado e adotado. A causa não foi determinada. Baseado nos exames físicos e radiográficos diagnosticou-se anquilose da articulação temporomandibular esquerda e mucocele salivar. O aspecto lateral do processo condilar da mandíbula esquerda foi removido, e a mucocele foi tratada por ressecção das glândulas salivares mandibular e sublingual direita e por drenagem da mucocele. Após a cirurgia, o gato mostrou bom uso funcional da mandíbula, sem sinais de desconforto.

Frontal sinus fractures: anterior skull base.

The frontal sinus is fractured in 30% of patients sustaining maxillofacial injury. The CT scan has simplified the treatment plan allowing the surgeon to be more selective in the treatment choice, surgical approach, and follow-up. Fractures may involve the anterior, posterior, or both tables of the sinus. The frontal sinus repair or surgery takes place when there is minimal displacement and the frontal ducts are in tact. Obliteration of the sinus is suggested when the ducts are injured, but there is no significant bone loss or comminution of the posterior table. More extensive injuries of the posterior table require cranialization. The mucosa of the sinus must be reviewed completely, sealing off the nasal cavity to help decrease mucocele formation and other intracranial complications. Tedious repair of the dura (pericranial flap) decrease persistent CSF leak and intercranial infections. The anterior table must always be carefully repaired to optimize the cosmetic result. Careful follow-up is required to direct potential mucocele formation or delayed or persistent CSF leak. Judicious use of postoperative scars help to confirm these diagnosis.

Oral and topical antibiotic therapy of complete, primary acquired nasolacrimal duct obstruction in adults.

PURPOSE: To determine whether patients with complete, acquired nasolacrimal duct obstruction may be treated with broad spectrum oral antibiotics and office lacrimal irrigation. METHODS: In a retrospective review, patients with complete, primary acquired nasolacrimal duct obstruction (NLDO) were divided by predominant symptoms and signs into two main groups: (a) those with tearing and/or mucous discharge and (b) those with previous acute dacryocystitis and/or lacrimal sac mucocele. All patients received a therapeutic trial of oral and topical antibiotics followed by lacrimal irrigation. RESULTS: Five of 55 patients with tearing and/or mucous discharge showed significant improvement after treatment with a mean follow-up of 16.5 months. A sixth patient with mucous and tearing had resolution of the mucous discharge but persistent tearing and blockage of the nasolacrimal system to irrigation. Two of 20 patients with lacrimal sac mucocele or history of acute dacryocystitis avoided surgery while 18 opted for early lacrimal surgical intervention. CONCLUSIONS: Conservative management of complete acquired NLDO consisting of oral and topical antibiotics and appropriately timed office lacrimal drainage system irrigation may be considered in selected patients.