Clinicostatistical study of lower lip mucoceles

Oral mucoceles: A Brazillian Multicenter Study of 1,901 Cases

Oral mucocele (OM) is the most common lesion of minor salivary glands. The present study aimed to report the clinical and demographic features of a large series of OMs and identify possible predictive variables associated with the recurrence rate of these lesions. A retrospective descriptive cross-sectional study was performed. A total of 43,754 biopsy records from four pathology services in Brazil were analyzed. All cases of OMs were reviewed, and clinical and demographic data were collected. The study comprised 1,002 females (56.2%) and 782 males (43.8%), with a mean age of 19.8±16.4 years (range: 01-87 years) and a 1.3:1 female-to-male ratio. The lower lip (n=1,160; 67.4%), and floor of the mouth (n=172; 10.0%), were the most common affected sites, presenting clinically as nodules (n=978; 79.4%) of smooth surface (n=428; 77.5%) and normal color (n=768, 46.7%). Excisional biopsy was the treatment in most cases (n=1,392; 78.0%). Recurrent OMs represented 6.2% of all diagnosed cases (n=117). OMs recurred more commonly in younger patients (aged<20 years) (p<0.0001), in lesions larger than 2 cm in diameter (p<0.0001), and in those located in the ventral tongue (p=0.0351). Also, recurrence rates were higher significantly in cases treated with laser surgery than in those with conventional surgery (p=0.0005). Patients with OMs should be carefully informed of its possible recurrence, especially when found on the ventral tongue of young patients.

Mucus Retention Cyst of the Soft Palate in a Dog

A 10 yr old 6.6 kg (14.5 lb) castrated male Chihuahua was referred to the Alta Vista Animal Hospital for evaluation of a mass of the soft palate. The cystic structure was bluntly dissected from the soft palate submucosal tissue, and the dog recovered from surgery and anesthesia without complication. Histopathology revealed salivary tissue with a large multiloculated cyst lined by a single layer of cystic and dilated cuboidal epithelium. Follow up 7 mo after surgery revealed complete resolution of clinical signs with no evidence of local recurrence. To the authors' knowledge, this is the first confirmed report of a mucus retention cyst in a dog.

Management of Salivary Gland Injury

Although a rare sequala of soft tissue injury, salivary gland trauma may result in significant morbidity. Salivary gland injury can involve the major as well as the minor glands. Because of the proximity of adjacent vital structures, a thorough history and physical examination are mandatory during patient evaluation. Trauma to the major salivary glands may involve the parenchyma, duct, or neural injury. Treatment requires adherence to primary principles of soft tissue management. Ductal and neural injury should be repaired primarily. Sialocele and fistula are potential complications of repaired and unrepaired salivary gland injury.

Management of Mucoceles, Sialoceles, and Ranulas

Mucoceles are common salivary gland disorders. Mucoceles are benign, mucus-filled extravasation pseudocysts that commonly arise on the lower lip of children and young adults. Although surgical excision is commonly performed to remove these lesions, other treatments include marsupialization, micromarsupialization laser ablation, cryotherapy, intralesional steroid injection, and sclerosing agents. Traumatic sialoceles commonly arise from injury to the parotid duct. Treatment of sialoceles from acute parotid duct injury and for delayed presentations after injury are discussed. Ranulas are a subtype of mucocele from the sublingual gland classified as superficial or plunging. Treatment of ranulas must address the sublingual gland.

Mucocele of the tongue: A case report and review of literature

Mucoceles are common cystic lesions in the oral cavity. It may occur in different locations in the oral mucosa due to trauma or obstruction of minor salivary gland ducts with the lower lip as the predominant site. However, mucoceles located on the ventral surface of the tongue originating from the anterior lingual salivary glands are extremely rare and often overlooked during screening procedures because of their asymptomatic nature. Here, we report an interesting case of mucocele on the anterior ventral surface of the tongue in an 11-year-old female based on the clinical and histopathological diagnosis. Moreover, mucoceles should be considered as one of the differential diagnoses while evaluating a growth involving the ventral surface of the tongue in young female children.

Oral mucocele in infant with an unusual presentation

Mucocele is a benign lesion characterised by an extravasation or retention of mucous secretion in submucosal tissue from minor salivary glands. The occurrence of mucocele is common in the oral cavity, with more than 70% of cases on lower labial mucosa. The occurrence of mucocele on the tongue is considered rare and accounted for only 2.25% in the previous literature. Histopathological examination plays a great role in the confirmation of the clinical diagnosis. Management of mucocele is at times challenging. This paper highlights a rare case of mucocele in a 5-month-old infant who was successfully managed under day-care anaesthesia.

Identification of predictive variables for the recurrence of oral mucocele

BACKGROUND

Oral mucocele is the most common minor salivary gland lesion with good prognosis after surgical removal. However, its recurrence is not rare, sometimes bothersome. This study aimed to identify the possible predictive variables affecting the recurrence rate of oral mucocele.

MATERIAL AND METHODS

The histoclinical data of 164 patients diagnosed with oral mucocele were retrospectively obtained by reviewing dental records. The predictive variables for its recurrence were identified by analyzing its recurrence rate according to clinical variables.

RESULTS

The recurrence rate showed the significant differences according to location and age. Oral mucocele recurred with significantly higher frequency on the ventral mucosa of tongue (50.0%) than on the labial/buccal mucosa (8.8%). Its recurrence was significantly more common in the younger patients (aged < 30 years, 16.0%) than in the older patients (aged > 30 years, 4.4%). However, there was no significant difference in recurrence rates between surgical procedures using scalpels and those using lasers.

CONCLUSIONS

Patients with oral mucocele should be more carefully informed of its possible recurrence, especially when it is found on the ventral surface of the tongue or in a younger population.

Diode Laser Assisted Excision and Low Level Laser Therapy in the Management of Mucus Extravasation Cysts: A Case Series

Introduction: Mucus extravasation cyst is a commonly occurring lesion in oral cavity that may result from traumatic severance of a salivary gland duct with subsequent extravasation of mucus into fibrous connective tissue. After a conventional excision or marsupialization, recurrence is not uncommon. Diode laser offers an effective modality for management of such lesions. Case Reports: Four patients were referred with painless fluctuant swellings on labial and buccal mucosa. After recording history and clinical examination, provisional diagnosis of mucocele was made. All the lesions were excised with a diode laser and biopsy was performed. Surgical wounds were treated with low-level laser therapy (LLLT). Results: Uneventful healing was observed in all 4 cases. Significant reduction in postoperative discomfort was recorded after application of LLLT. Histopathological findings were suggestive of mucus extravasation cysts. Conclusion: Diode laser appears to be a good alternative to conventional modalities for the management of mucus extravasation cysts.

Intraoral Salivary Duct Cyst: Clinical and Histopathologic Features of 177 Cases

The salivary duct cyst (SDC) is a reactive ductal ectasia most frequently seen in major salivary glands, and likely caused by obstruction. The aim of this study is to define the clinical and histopathologic spectrum of intraoral SDCs. Cases were retrieved from the archives of Harvard School of Dental Medicine/StrataDx, Inc. from January 2012 to August 2014. There were 177 cases of which 103 (58.2%) occurred in females, with a median age of 56 (range 2-95). Approximately half of cases (45.8%) presented in the area of the buccal mucosa, lower lip mucosa, or mandibular vestibule, and 23.2% presented in the floor of mouth. SDCs were lined at least focally by 1-2 layers of cuboidal/columnar epithelium in 85.3% of cases and showed varying degrees of metaplasia (oncocytic, mucous cell, squamous, ciliated, apocrine-like) in 68.4% of cases. Intraluminal mucous stasis was present in 41.8% of SDCs, incipient calcification was present within 4.5% of SDCs, and chronic obstructive sialadenitis was seen in 90.2% of cases. No cysts showed adenomatous ductal proliferations or true papillary structures with fibrovascular cores, although 41.2% exhibited reactive undulation of cyst lining. Thirty-nine 'papillary oncocytic cystadenoma-like' SDCs (22.0%) demonstrated complete oncocytic metaplasia and marked undulation. An additional seven such cysts (4.0%) had a 'Warthin tumor-like' lymphoplasmacytic infiltrate. Intraoral SDCs occur most commonly in the sixth decade of life in locations distinct from extravasation mucoceles, likely secondary to intraluminal obstruction. SDCs show diverse histopathology and certain phenotypic variants may be mistaken for papillary oncocytic cystadenoma or Warthin tumor.

Comparison of Micromarsupialization and Modified Micromarsupialization for the Management of Mucocoele of Lower Lip: A Prospective Randomized Clinical Trial

BACKGROUND

This study was undertaken to compare micromarsupialization and modified micromarsupialization for the management of mucoceles.

MATERIALS AND METHODS

A prospective randomized clinical study was done on thirty patients having mucocele on lower lip. In Group A (n = 15), micromarsupialization and in Group B (n = 15), modified micromarsupialization technique was used. The outcome variables were duration of surgery, intraoperative pain, postoperative pain, healing and recurrence. t test and p values were used to compare the age, duration of lesion, duration of treatment and time taken for healing. The results were expressed as mean with SD. Statistical significance was established at the p ≤ 0.05 level. Analysis of pain (intraoperative, on 3rd, 7th day), intraoperative bleeding and recurrence was done using Fischer's exact test (p = 0.875, NS).

RESULTS

The average duration of treatment for Group A was 4.10 ± 0.39 min and for Group B was 5.33 ± 0.2 min. The difference was found to be statistically highly significant (p value ≤0.000). The observed power was 1.000. The difference in the intraoperative and postoperative pain on 3rd and 7th day was not found to be significant as per Fischer's exact test. The mean time taken for healing of the surgical site in Group A was 7.47 ± 0.64 days and in Group B was 9.87 ± 1.88 days, and the difference was found to be highly significant. The observed power was 0.995.

CONCLUSIONS

Modified micromarsupialization appears to be a safe technique for the management of mucoceles. However, in comparison with micromarsupialization, it has a higher operating and healing time.

Microwave Ablation: A Novel Treatment for the Mucoceles of Anterior Lingual Salivary Glands

PURPOSE

The objective of this study was to evaluate the efficacy of microwave ablation as a substitute for surgery in patients with a mucocele of the anterior lingual salivary glands.

MATERIALS AND METHODS

In the Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Sichuan University (Chengdu, China), 78 patients with a clinical diagnosis of a mucocele of the anterior lingual salivary glands underwent microwave ablation from November 2012 to May 2015. Outcome and data on age, gender, size of lesion, history of trauma, and duration of lesion development for each patient were collected.

RESULTS

In this series, all patients fully recovered and only 5 patients received a second ablation. Wound healing was uneventful in all cases and a small scar was observed in only 6 patients. No serious complications were observed except for local discomfort in 2 cases and tongue tip numbness in 3 cases, but the problems resolved within several days without management.

CONCLUSION

Microwave ablation is a safe, straightforward, less invasive, economic, and effective therapeutic method for a mucocele of the anterior lingual salivary glands and can be used as a primary treatment modality before considering surgery.

A 15-year retrospective study of 160 cases of benign lip lesions

OBJECTIVE

This study aimed to describe the results of a retrospective analysis of a specific cohort of patients with benign lip lesions encountered in the last 15 years in the School of Medicine at Karadeniz Technical University.

METHOD

A total of 312 patients were managed for lip lesions during the period 2000-2014. Data from 160 samples of benign lip biopsies were retrieved from the pathology laboratory records.

RESULTS

The study group included 20 different histopathological types of lesions, with mucocele being the most frequent lesion (43.13 per cent). The other frequent lesions were chronic inflammatory infiltrate (11.25 per cent), intradermal naevus (5.63 per cent), pyogenic granuloma (5.63 per cent), fibroma (5 per cent) and papilloma (5 per cent). Mucocele was significantly more common in younger patients (p < 0.001).

CONCLUSION

Knowledge of the epidemiology and distribution of oral mucosal lesions is essential to promote early diagnosis and treatment. Further epidemiological studies exploring the causal relationships and risk factors for lip lesions are necessary for a better understanding of lip diseases.

Epidemiological survey of mucus extravasation phenomenon at an oral pathology referral center during a 43 year period

Introduction

Mucoceles are common benign pseudocystic lesions of the oral cavity; their main etiological factors are trauma and ductal obstruction. Two histological patterns are found: mucus retention phenomenon (MRP) and mucus extravasation phenomenon (MEP). Mucus extravasation phenomenon is the more common histological subtype and it mainly affects the lower lip. The knowledge of its main clinical features and management is important to assist health professionals in clinical practice.

Objective

This study aimed to determine the relative frequency and distribution of oral mucoceles in an oral pathology reference center.

Methods

Cross-sectional historical study that analyzed all cases pathologically diagnosed as mucus extravasation phenomenon by the department of anatomic pathology of an oral pathology referral center from June of 1970 to May of 2014, considering the clinical characteristics of the lesion and those relating to the patient. SPSS v. 20.0 software for Windows was used for descriptive analysis.

Results

During 43 years, 719 cases of mucus extravasation phenomenon (54.7% men and 45.3% women) were registered, with the lower lip as the most commonly affected site (n = 484; 67.3%). The average age of patients was 20.8 years (SD ± 14.4) with a peak occurrence in the second decade of life. Most professionals had oral mucocele/ranula (n = 606; 84.3%) as the initial clinical impression.

Conclusion

Mucus extravasation phenomenon is a lesion that primarily affects young patients, affecting mainly the lower lip, and is commonly found in oral diagnostic services.

Micro-marsupialization versus surgical excision for the treatment of mucoceles

Background:

Mucocele is a common disorder of minor salivary glands which arises due to mucous accumulation resulting from their alteration. Several techniques have been described for the treatment. However, most of them are invasive or require costly armamentarium.

Purpose:

The present study was conducted to evaluate the efficacy of micro-marsupialization technique as an alternative to surgical excision for the treatment of mucoceles.

Materials and Methods:

A prospective study was conducted. A total of twenty patients were selected based on clinical diagnosis of mucoceles and were randomly divided into two groups comprising ten patients each. Micro-marsupialization was done in Group 1 patients and surgical excision in Group 2. Patient's gender, age, size, location, duration, complications, and recurrences were evaluated during various visits. Data between the two groups were analyzed by descriptive and analytical (Chi-square tests) statistics.

Results:

The mean age of the patients in Group 1 was 19.6 ± 9.6 years while in Group 2 was 21.9 ± 11 years. The most common location for mucocele in Group 1 as well as Group 2 patients was lower lip (60% and 80%, respectively). In Group 1, two patients had recurrence while in Group 2, one patient had a recurrence. All recurrent cases were subsequently treated by surgical excision. No statistically significant difference was found between the two methods.

Conclusion:

Micro-marsupialization technique is as efficacious as surgical excision for the treatment of mucocele. It is advantageous over surgical excision as it is simple to perform, is less invasive therefore not associated with complications associated with invasive procedure, and is well tolerated by patients.

Oral mucocele: Review of literature and a case report

Mucocele is the most common lesion of the oral mucosa, which results from the accumulation of mucous secretion due to trauma and lip biting habits or alteration of minor salivary glands. Mostly they are two types based on histological features which as follows: Extravasation and retention. Mucoceles can appear at anywhere in the oral mucosa such as lip, cheeks and the floor of the mouth, but mainly appear in the lip. Diagnosis is mostly based on clinical findings. The most common location of the extravasation mucocele is the lower lip. Mucoceles most probably affect young patients but can affect all the age groups. They may have a soft consistency, bluish, and transparent cystic swelling, history of bursting and collapsing due to which resolves themselves then refilling which may be repeated. The treatment of choice is surgical removal of the mucocele.

Oral mucocele: A clinical and histopathological study

Background:

Oral mucocele is the most common benign minor (accessory) salivary gland lesion, caused due to mechanical trauma to the excretory duct of the gland. Clinically they are characterized by single or multiple, soft, fluctuant nodule, ranging from the normal color of the oral mucosa to deep blue. It affects at any age and is equally present in both sexes with highest incidence in second decade of life. They are classified as extravasation or retention type.

Objectives:

To analyze the data between 2010 and 2011 of, clinically and histopathologically diagnosed 58 oral mucoceles for age, gender, type, site, color, cause, symptoms and dimension.

Results:

Oral mucoceles were highly prevalent in the age group of 15-24 years, were seen in 51.72% of males and 48.28% of females, with a ratio of 1.07:1. The extravasation type (84.48%) was more common than the retention type (15.52%). The most common affected site was lower lip (36.20%) followed by ventral surface of the tongue (25.86%). The lowest frequency was observed in floor of mouth, upper lip and palate. The maximum numbers of mucoceles were asymptomatic (58.62%), and the color of the overlying mucosa had color of adjacent normal mucosa (48.28%). It was also observed that most of the mucoceles had diameter ranging from 5 to 14 mm. The causative factors of the lesion were lip biting (22.41%), trauma (5.18%) and numerous lesions (72.41%).

Conclusion:

Oral Mucoceles are frequently seen in an oral medicine service, mainly affecting young people and lower lip, measuring around 5 to 14 mm and the extravasation type being the most common.

An unusual presentation of oral mucocele in infant and its review

Mucocele is a benign lesion characterized by an extravasation or retention of mucous in submucosal tissue from minor salivary glands. Mucoceles are known to occur most commonly on the lower lip, followed by the floor of mouth and buccal mucosa being the next most frequent sites. Trauma and lip biting habits are the main cause for these types of lesions. Mucocele is a common oral mucosal lesion but it is rarely observed in the infant. This paper highlights the successful management of a rare case of mucocele in an 11-month-old child. Diagnosis and management of mucocele are challenging. For this reason we felt it would be interesting to review the clinical characteristics, histological features, differential diagnosis, and their treatment and evolution in order to aid decision-making in daily clinical practice.

Mucocele in lower lip as a result of improper use of feeding bottle: a case report

A rare case of mucocele associated with improper feeding habit has been presented. An eight-month old male child presented with swelling in lower lip which was noticed by his mother a week earlier. A thorough clinical examination and history taking gave a diagnosis of mucocele resulting from improper use of feeding bottle. This case highlights and discusses the history, the clinical along with histologic features, and the clinical management of this lesion. Awareness of such an entity and the functional problems associated with the lesion will help the pediatric dentist to prevent any further complications.

Mucocele: An unusual presentation of the minor salivary gland lesion

A mucocele is a benign, mucus-containing cystic lesion of the minor salivary gland. This type of lesion is most commonly referred to as mucocele. The more common is a mucus extravasation cyst; the other is a mucus retention cyst. Other three clinical variants are: Superficial mucocele that is located directly under the mucosa, classic variant located in the upper submucosa, and deep mucocele located in the lower cornium. Mucocele occurs either due to rupture of salivary gland duct or by blockade of salivary gland duct. The common site of occurrence of mucocele is lower lip followed by tongue, floor of mouth (ranula), and the buccal mucosa.

Mucocele of the glands of blandin-nuhn in children: a clinical, histopathologic, and retrospective study

BACKGROUND

The anterior lingual salivary glands (glands of Blandin-Nuhn) are mixed mucous and serous glands that are embedded within the musculature of anterior tongue ventrum.

AIM

The present study was designed to describe the clinical and histopathological features.

MATERIAL AND METHODS

We investigated the clinical and histopathologic features of 30 cases of mucocele of glands of Blandin-Nuhn. All the cases were seen in the department of pedodontics.

RESULTS

All the lesions were located on the ventral surface of the tongue. Lesions were situated at the midline in 24 patients and laterally in 6 patients. All the lesions were surgically treated. There was female predominance, and most patients were younger than 15 years.

CONCLUSION

Histopathological examination showed extravasation type of mucocele, suggesting that trauma may be a frequent initiating factor. All the patients were younger than 15 years.

Rare case of a massive buccal mucocele

Mucoceles are common pathological lesions of the oral cavity, usually measuring up to 10 mm. The authors describe a case of deeply located buccal mucocele measuring 35 mm in diameter. The lesion was caused by facial injury in a 54-year old man. The lesion persisted for approximately 2.5 years and was difficult to diagnose because of its unusual size and atypical clinical symptoms. Preoperative ultrasonography excluded a tumor, and this was confirmed by histopathological examination. However, oncological alertness was considered necessary on account of ulcerated mucosa next to the lesion. The mucocele was removed through surgical excision, using a scalpel and tissue scissors. No recurrence was observed in 2.5 postoperative years. It is stressed that histopathological examinations help to differentiate mucoceles from other disease processes.

Mucoceles of the oral cavity in pediatric patients

Mucoceles are quite common in the oral cavity, but reports on pediatric patients are very rare. The aims of this study were to present our data and experience in the treatment of mucoceles of the oral cavity in pediatric patients, to compare them with those of other countries, and to remind the pediatric physician to devote much attention to lesions of the oral cavity in children. This retrospective study is based on the record of the patients who received surgical treatment for mucoceles of the oral cavity with pathologic confirmation at the Department of Dentistry, Kaohsiung Medical University Hospital, Taiwan, between 2000 and 2004. Patients younger than 18 years were included in this study. The analyzed data included age, gender, site, size, histopathologic findings, surgical methods, and complications. There were a total of 289 patients with mucoceles confirmed by histopathologic examination. As many as 64 patients were younger than 18 years. Of the 64, 34 were girls and 30 were boys; 89.1% of the lesions were in the lower lip; and 48.4% of the lesions were less than 5mm in diameter. Histopathologic findings showed that all mucoceles were of the extravasation type. As many as 30 patients were treated by carbon dioxide laser vaporization, and two cases recurred (6.67%); 34 patients were treated by surgical excision, and the recurrence rate (5.88%) was not statistically different for the treatment methods. The laser vaporization has the advantage of less bleeding, no sutures, and saving time, especially suitable for children with oral mucocele.

Calibre-persistent labial artery: often misdiagnosed as a mucocoele

The authors present five cases of calibre-persistent labial artery (CPLA) all of which were diagnosed clinically as a labial mucocoele. The purpose of this article is to bring this rarely reported lesion to the attention of clinicians.

Clinical characteristics, treatment, and evolution of 89 mucoceles in children

PURPOSE

The present study was undertaken to evaluate mucoceles in the oral cavity of pediatric patients, including the clinical characteristics, treatment, and progress of the lesions.

PATIENTS AND METHODS

A retrospective study was performed from the medical records of patients (0-14 years old) treated for oral mucoceles between 1998 and 2008 in a reference children's hospital. All subjects with mucoceles on lips, mouth, buccal mucosa, and palate were included. The following data were recorded: age, gender, history of trauma, location, size, progression, time before diagnosis, treatment, histologic type, follow-up time, and recurrence.

RESULTS

A total of 89 patients (mean age, 6.1 years) participated in this study. There were 89 mucoceles: 4 were congenital; 79.8% were located on the lower lip; and 69% were larger than 5 mm in diameter. Average progression time was 5.7 months (range, 1-24 months). It was observed that older patients developed more mucoceles on the tongue and lips and younger patients developed more mucoceles on the buccal mucosa and palate. The lesions of 39 subjects resolved spontaneously; 50 were removed but 4 reappeared afterward. Histologically, all lesions were extravasation mucoceles.

CONCLUSION

Mucoceles were more commonly located on the lower lip; 43.8% resolved spontaneously and 8% of the surgically removed mucoceles reappeared.

Mucus extravasation and retention phenomena: a 24-year study

Background

Mucoceles are benign lesions related to the minor salivary glands and their respective ducts frequently affecting oral structures which are generally asymptomatic. Mucoceles are generally characterized by swollen nodular lesions preferentially located on the lower lip and differ from the so-called ranulas, which are lesions located on the floor of the mouth and related to the sublingual or submandibular glands.

Methods

The objective of the present study was to analyze data such as age, gender, race and site of the lesion of 173 mucocele cases diagnosed at the Discipline of Stomatology, São José dos Campos Dental School, UNESP, over a period of 24 years (April 1980 to February 2003).

Results

Of the 173 cases analyzed, 104 (60.12%) were females and 69 (39.88%) were males. Age ranged from 4 to 70 years (mean ± SD: 17 ± 9.53) and most patients were in the second decade of life (n = 86, 49.42%); white (n = 124, 71.68%). The lower lip was the site most frequently affected by the lesions (n = 135, 78.03%), whereas the lowest prevalence was observed for the soft palate, buccal mucosa, and lingual frenum.

Conclusion

In this study, mucoceles predominated in white female subjects in the second decade of life, with the lower lip being the most frequently affected site.

Benign lip lesions. A 10-year retrospective study

OBJECTIVES

This paper aims to present a retrospective analysis of a cohort of patients with benign lip lesions managed over the last decade at the Department of Maxillofacial Surgical Oncology of Theagenio Cancer Hospital of Thessaloniki. It aims to highlight the substantial clinical and histological diversity of the lesions, as well as to present an epidemiological analysis for the specific cohort/population.

STUDY DESIGN

During the period 1995-2004 a total of 420 patients were managed for lip lesions. Of these, 280 were malignant and 116 benign. A total of 24 cases of actinic keratosis were added in the latter group.

RESULTS

Of the benign lesions, the commonest were haemangiomas (19.28%), actinic keratosis (17.14%), intradermal naevus (14.28%), fibroma (9.28%), papilloma (7.85%), mild and moderate dysplasia (7.85%) and mucocele (7.14%). The group included 17 different histological types of benign lesions. The most frequent site of presentation was the lower lip (56.42%). Post-operative follow-up ranged from 6 months to 2 years (average 15.5 months). There was a single case of recurrence during follow-up.

CONCLUSIONS

Benign lip lesions do not usually pose a problem for the clinician and their surgical management is straightforward. Accurate auditing and detailed statistical analysis aid in disease prevention and help avoid errors in diagnosis and management.

Mucocele in pediatric patients: analysis of 36 children

Mucoceles are common benign lesions of the oral cavity that develop following extravasation or retention of mucous material from major or minor salivary glands. Most series report a higher incidence of mucocele in young patients but no studies exist for this specific age group. The records of 104 patients presenting with mucocele who underwent surgery in the Oral Diseases Clinic of the Department of Dermatology of the University of São Paulo, Brazil, between 1991 and 2006, were reviewed. Of these, 36 (34.6%) were 15 years old or younger, the youngest being 2 years old. Twenty-six patients were girls, 10 were boys. Lesions were located on the lower labial mucosa (30 patients), tongue (three), floor of the mouth (one), buccal mucosa (one), and in one patient the location was unknown. Histopathology revealed an extravasation pattern in 35 patients and a retention pattern in one. Of the distinct subtypes of mucocele, tongue lesions (mucocele of the glands of Blandin-Nuhn) seem to be more prevalent and retention mucoceles seem to be very rare in children.

Treatment of Mucocele of the Lower Lip With Carbon Dioxide Laser

PURPOSE

The aim of this report was to evaluate the outcome and complications of the treatment of numerous patients with mucoceles of lower lip by means of CO(2) laser vaporization.

MATERIALS AND METHODS

This study included 82 patients with biopsy-confirmed mucocele of the lower lip who were treated with CO(2) laser vaporization from January 1999 to December 2003; the data on recurrence and complications were collected.

RESULTS

There was a recurrence in 2 cases. Complications were rare, except for mild discomfort. One patient felt temporary numbness at the operative site. There was no bleeding and minimal scar formation.

CONCLUSION

CO(2) laser vaporization to treat the mucocele of the lower lip is effective and has few complications. Because the operative time is shorter than with the excisional method, it is especially good for children and for less cooperative patients with this lesion.

Common benign oral soft tissue masses

This article reviews some of the more common benign oral soft tissue masses with emphasis on their etiology, epidemiology, clinical presentation, histopathology, and treatment. These lesions include traumatic fibroma, mucocele, warts/papilloma, pyogenic granuloma, peripheral giant cell granuloma, generalized gingival hyperplasia, gingival fibromatosis, lateral periodontal cyst, lipoma, and denture-induced hyperplasia.

A review of common pediatric lip lesions: herpes simplex/recurrent herpes labialis, impetigo, mucoceles, and hemangiomas

Lip lesions are a common presentation to the pediatrician's office. These lesions are often benign in children, without significant functional morbidity. However, owing to the prominent placement of lips and their role in communication, lip lesions can be alarming to patients as well as to their parents. For these reasons the pediatrician has an important role in recognizing, diagnosing, and treating the various types of labial dermatoses that commonly present to a pediatric practice. Four of the most common lip lesions a pediatrician will see are herpes simplex/recurrent herpes labialis, impetigo, mucoceles, and hemangiomas. This paper reviews the current literature on the diagnosis, treatment, and management of these 4 lesions.