Odontogenic cutaneous fistulas: clinical and epidemiologic characteristics of 75 cases

High-Resolution Ultrasound of Odontogenic Cutaneous Sinus Tract: An International Multicentric Experience and a Review of the Literature

OBJECTIVES

To investigate the role of high-resolution ultrasound (HR-US) in the initial and differential diagnosis of the Odontogenic Cutaneous Sinus Tract (OCST) in a multicentric setting.

METHODS

Skin HR-US examinations of OCSTs performed between January 2019 and June 2023 at different Institutions were retrospectively reviewed. Epidemiological and clinical data (age, gender, location of the skin lesion, causative tooth, and the clinical suspicion) as well as HR-US imaging findings (morphology and length of the sinus tract, Doppler signal, and cortical bone interruption of maxilla or mandible) were collected. US examinations were performed by expert radiologists using a high-performance US scanner, employing a high-frequency linear probe (15 MHz or higher frequencies). In only one patient the HR-US exam was integrated with strain elastography (SE).

RESULTS

Sixteen patients were enrolled with a median age of 37.6 years (range 16-70 years). The most frequent clinical suspicion was epidermal cyst, while OCST was suspected in only two cases. In all cases, HR-US depicted the sinus tract as a nodular, triangular or "champignon-shaped" lesion in the subcutaneous layer, which continued with a slightly tortuous band structure, up to the focally interrupted cortical bone plate. Furthermore, color Doppler evaluation showed color signals around and/or within the lesion, expression of inflammation. On SE, the sinus tract showed a hard pattern, due to fibrous and granulomatous tissue.

CONCLUSIONS

HR-US, thanks to its high spatial resolution, allows the evaluation of OCST, and play a crucial diagnostic role, mainly when the clinical suspicious is different.

A retrospective study of the clinical and imaging features of 60 cases of odontogenic cutaneous fistula

Background Odontogenic cutaneous fistulas (OCST) are pathological connections between the facial skin and oral cavity caused by chronic dental infection. They are often misdiagnosed or underdiagnosed by dermatologists. Aims This study explores the clinical and radiographic features of patients with odontogenic cutaneous fistulas. Methods This study retrospectively analysed the clinical data of 60 patients diagnosed with odontogenic cutaneous fistulas between January 2016 and February 2022. Results The study identified a predominance of OCST in males (53.3%) with a mean age of 49 years. There was a significant difference in the distribution between the maxillary and mandibular zones [(14/60, 23.3%) vs (46/60, 76.7%), p < 0.001]. Nodules are the most frequent morphology (48.3%). Imaging findings included periapical radiolucency, bone erosion and the presence of a sinus tract. All patients responded well to dental treatments with no recurrences noted. Limitations This is a retrospective study design and has a limited number of patients. Conclusion Collaborative efforts between dentists and dermatologists are crucial for accurate diagnosis and treatment, enhancing patient outcomes.

A clinical dimple on facial skin related to dental origin: A case report

INTRODUCTION AND IMPORTANCE

Facial skin may experience many clinical manifestations which are numerous and need accurate diagnosis to reach the best treatment immediately and effectively. Dimpling of the skin may be diagnosed improperly due to lack of information related to diseases of dental origin. The objective of this study is to provide clarity on dental diagnosis and treatment options for extraoral dimpling caused by odontogenic infections.

CASE PRESENTATION

A 19-year-old girl presented with a dimple on her facial skin developed during the last month before her consultation. The dimple was located where a vertical line from the distal canthus crosses a horizontal line from the nasal alar. No systemic disease was discovered, and the dental history revealed recurrent failure of root canal treatment in the upper first molar.

CLINICAL DISCUSSION

Cutaneous sinuses originating from dental issues are characterized by a connection between the skin surface and a periapical dental abscess, which is caused by a long-dated tooth infection. Due to the patient's previous dental abscess in close proximity to the skin defect, a clinical diagnosis of an odontogenic cutaneous sinus was established.

CONCLUSION

It is crucial to recognize that skin lesions in the face and neck area can be a result of odontogenic infections. Careful clinical and radiographic examinations should be conducted to accurately diagnose and differentiate these conditions. By identifying the tooth associated with the lesion, unnecessary medications and incorrect interventions can be avoided, ensuring the implementation of appropriate treatment.

Periapical Cyst Forming Cutaneous Sinus Tract: Unusual Presentation-Case Report

A cutaneous sinus tract due to periapical cyst being very rare may easily be misdiagnosed, leading to incorrect treatment. Identifying the etiology is difficult, but it is the key to effective therapy. The case presented here is a cutaneous sinus tract in the nasolabial region of odontogenic origin. After surgery and extraction of the tooth, the sinus tract healed remarkably (Belmehdi et al. in Contemp Clin Dent 9:314-318, 2018; Latifa et al. in Clin Case Rep 10:e05333, 2022).

Odontogenic Cutaneous Sinus Tract in a 10-Year-Old Girl: A Case Report of a Rare Entity

Odontogenic cutaneous sinus tract (OCST) is defined as pulp necrosis caused by dental caries or trauma that forms a fistula on the body surface as a drainage channel for the infected pulp. OCST can be difficult to diagnose because subjective symptoms, such as pain in the affected tooth, may be minimal. In addition, lesions in the cervical region are extremely rare. In this report, we discuss the case of a 10-year-old girl who presented with inflammation, edema, and purulent exudation on the right neck. Her symptoms resembled those of lateral cervical cysts and fistulas. However, upon evaluation, she was diagnosed with OCST. Although OCST is an important differential diagnosis for head and neck lesions, it is often overlooked. OCST should be considered in the differential diagnosis of neck masses and fistulas.

Four atypical cases of misdiagnosed facial cutaneous sinuses of dental origin

BACKGROUND

Odontogenic cutaneous sinus tracts are frequently misdiagnosed as cutaneous non-dental related pathologies, due to their lack of a typical morphology, their extraoral location, and the frequent absence of concomitant dental symptoms. An erroneous diagnosis may lead to long-lasting, invasive, and not resolutive surgical and medical treatments.

METHODS

Four patients referred to our department lamenting the presence of a recurrent facial cutaneous sinus tract. They all had already had different wrong diagnoses and were treated with not resolutive therapies or surgeries. After a clinical and radiographical oral examination, the cutaneous fistulas were found to have a dental etiology, and the extraction of the compromised tooth was performed.

RESULTS

One week after the tooth extraction, all the patients presented good healing of the intraoral mucosa. At the long-term follow-up in all four cases, the definitive closure of the extraoral sinus tract and a reduction of the scar was found.

CONCLUSIONS

If a facial sinus tract is present, the odontogenic etiology should always be considered, since it can easily bring to the correct diagnosis, leading to a rapid resolution of the fistula. Once the dental origin has been confirmed, the suggested treatment for a conclusive resolution of the cutaneous sinus tract is the endodontic treatment or the extraction of the affected tooth.

Surgical management of an odontogenic cutaneous sinus tract misdiagnosed for 4 years

A cutaneous sinus tract of dental origin may easily be misdiagnosed and incorrectly treated. This paper reported a case of a 20-year-old male patient referred for a productive cutaneous sinus tract misdiagnosed by medical doctors for more than 4 years. The clinical and radiographic examinations confirmed the odontogenic origin related to a mandibular first right molar presenting an infected radicular cyst. Surgical treatment was performed leading to a significant healing of the sinus tract.

Odontogenic Cutaneous Fistula: A Case in Aged Patient With Delayed Diagnosis

ABSTRACT

Odontogenic cutaneous fistula is a pathologic communication between the cutaneous surface of the face and the oral cavity and it is a rare entity frequently misdiagnosed.Therefore, the lesion may persist for a long period before the correct diagnosis is made and odontogenic source is treated appropriately. Delay in diagnosis adds to the chronicity of the lesion and if not diagnosed in times fistula can even leave deforming scars.Considering the scarceness and diagnostic predicament of odontogenic cutaneous fistulas, the authors report a significant case of 80 years old female.

An accurate diagnosis of odontogenic cutaneous sinus tract by different computed tomography unit setting

Due to their rarity and the lack of associated dental symptoms, odontogenic cutaneous sinus tracts (OCSTs) are often misdiagnosed and confused with cutaneous lesions or non-odontogenic infections. It has been estimated that 50% of individuals affected by OCSTs are subjected to inappropriate treatments before the correct diagnosis is established. We describe the diagnosis and treatment of two cases of OCSTs. By using a computed tomography (CT) with soft tissue window setting, the extent of cortical bone destruction and the path of the sinus tract in the soft tissue was easily identified. Thus, we recommend the use of imaging techniques such as CT, which can confirm the odontogenic origin and the exact location of the OCST.

Odontogenic infection and antiresorptive agent-related osteonecrosis of the jaw with facial subcutaneous abscess formation: A retrospective clinical study of difficult-to-diagnose cases

OBJECTIVE

The objective of this study was to analyze difficult-to-diagnose cases of odontogenic infection and antiresorptive agent-related osteonecrosis of the jaw (ARONJ) with facial subcutaneous abscesses by otolaryngologists.

METHODS

The study was conducted in the department of otolaryngology of a university hospital. Seven patients exhibiting odontogenic infection and ARONJ with facial subcutaneous abscesses diagnosed at the department of otolaryngology in our hospital from January 2008 to December 2018 were included in the study. We investigated the following information obtained from the patients: clinical department for initial treatment, sex, age, offending tooth, causative disease, site of the fistula, symptoms, methods of diagnoses, and therapy.

RESULTS

Odontogenic infection with facial subcutaneous abscess formation can occur in individuals in a wide range of age groups; however, the pathological manifestations of ARONJ are often observed in older women, frequently at the chin and accompanied by nodules and pain in the adjacent teeth. Computed tomography and orthopantomography are useful for diagnosis and are especially indicated for patients under long-term follow-up or with frequent recurrences. Magnetic resonance imaging, cytodiagnosis, and histological analysis might be necessary to exclude the possibility of tumors. Management of such facial subcutaneous abscesses comprises dental treatment and infection control, and f surgical removal of the abscess is usually not required. Treatments such as sequestrectomy and sitafloxacin administration are useful for patients with ARONJ.

CONCLUSION

Our results demonstrated that for patients with facial subcutaneous abscesses, involvement of odontogenic infection and ARONJ should be considered.

Odontogenic Cutaneous Sinus Tracts: A Clinician's Dilemma

Background:

Odontogenic cutaneous sinus tract (OCST) is one of the rare manifestations of chronic dental infections. Although well reported in literature, it is often misdiagnosed or under diagnosed. Apart from isolated case reports especially in dental literature there is a paucity of comprehensive case series on OCST.

Aims and Objectives:

We undertook this study to observe the prevalence, clinico epidemiological features and management issues in these patients from a dermatological perspective.

Methods:

A retrospective study was undertaken analyzing the clinical records of patients registered at our outpatient department (OPD) from 2011 to 2018. Cases with a clinical and radiological diagnosis of odontogenic cutaneous sinus were included in the study. We studied the following variables: frequency, gender, age, localization, morphology, mean time of evolution and treatment response.

Results:

21 patients with OCST were identified from our records. Females outnumbered males; patients in the age group between 31-40 years were more commonly affected. Three morphological presentations were noted in the form of flesh-colored dry nodules with sinus, adherent plaques with mucopurulent discharge and ulcer. Posterior set of teeth were commonly affected and mandible was the commonest site for location of sinus. The time taken for appropriate diagnosis in these cases ranged from 7-16 months. Almost all the patients responded to endodontal or root canal treatment and there were no recurrences.

Conclusion:

A CST of dental origin is often a diagnostic challenge, especially in cases with minimal or no dental symptoms. A thorough skin and dental examination is required for sinuses on the head and neck area with a high index of suspicion for OCST. Most cases respond to conservative, root canal therapy. An early diagnosis can save the patient from unnecessary and ineffective therapies and sometimes surgeries.

Cutaneous draining sinus tract of odontogenic origin. A case of chronic misdiagnosis

This is a case of a patient with a buccal cutaneous sinus tract, originally misdiagnosed, with delayed healing and potential malpractice. An odontogenic cutaneous sinus tract is a pathologic canal that initiates in the oral cavity but opens externally at the cutaneous surface of the face or neck. It is frequently misdiagnosed, leading to inappropriate treatment. Once correct diagnosis is made, definitive treatment, through oral therapy to eliminate the source of infection, is simple and effective. This case was initially misdiagnosed as a sebaceous cyst and laceration of parotid gland. The case was correctly diagnosed through detailed examination and evaluation, using tracing and advanced imaging technology (cone beam imaging). Endodontic treatment was performed, which resulted in rapid resolution of the case, followed by dermatologic treatment with fractional laser to treat the scar formed.

Facial cutaneous lesions of dental origin: A case series emphasizing the awareness of the entity and its medico-legal consequences

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Facial lesions of dental origin are rare.

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We present the largest series in the surgical literature.

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The presentation is variable and dental treatment is curative.

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The wrong diagnosis/treatment may lead to medico-legal claims.

Introduction

Facial cutaneous lesions of dental origin are rare and hence the correct diagnosis is usually missed on the initial presentation to the surgeon. We present the largest series in the surgical literature to increase the awareness to this entity and emphasize that the wrong diagnosis may lead to medico-legal claims.

Patients and methods

This is a retrospective study of 28 patients seen between 1994 and 2017.

Results

The series had one child and 27 adults. The presentation varied and included: a nodule, a subcutaneous soft mass, a sinus, an abscess, a cyst, a pigmented skin lesion and a scar. Thirteen cases had an initial wrong diagnosis and of these 4 had surgery to the lesion. Two out of the 4 surgically treated lesions ended with medico-legal claims.

Conclusions

The surgeon should be aware of this rare entity and have a high index of suspicion. Dental treatment is curative and there is no need to operate the facial lesion. The wrong diagnosis and unnecessary surgery may lead to medico-legal claims.

Odontogenic Cutaneous Fistula: A Cause of Persistent Cervical Discharge

Odontogenic cutaneous fistulas often lead to intense levels of patient discomfort and suffering. Due to its rarity and the absence of dental symptoms, a considerable number of patients are usually misdiagnosed which results in inappropriate management. This case report presents a 16-year-old patient with a 2-year history of a nonhealing, persistently discharging lesion in the left submandibular region of the neck. The patient underwent exploration of the left submandibular region, and a fistulous tract directed superomedially to the ipsilateral lower molar teeth was excised. A subsequent panoramic orthopantomogram performed one week postoperatively demonstrated radiolucency is the distal root of tooth 37. A final diagnosis of odontogenic cutaneous fistula was made, and the patient was referred to the Maxillofacial Department for treatment of the offending tooth.

Non-Surgical Endodontic Therapy as Treatment of Choice for a Misdiagnosed Recurring Extraoral Sinus Tract

The purpose of this article is to present the treatment of an odontogenic cutaneous sinus tract with exuberant extraoral granulation tissue and its successful endodontic treatment and follow up with Cone-Beam Computed Tomography (CBCT). In this case, a 31-year-old woman was referred for management of a reddish nodule on her chin. Previous surgical and antibiotic intervention by the dermatologist had not resolved the problem. Profound clinical and radiological examination (including CBCT) revealed apical periodontitis of tooth 32 to be the cause of the recurring cutaneous sinus tract. Conservative non-surgical root canal treatment was performed. With the aid of a topical corticosteroid and supplemental antibiotic therapy, healing of the apical periodontitis and resolution of the granulation tissue was evident after 1 year both clinically and radiographically. This case report emphasises the need for more awareness by dermatologists and other medical practitioners for the differential diagnosis of extraoral sinus tracts. Correct diagnosis of the dental cause can prevent unnecessary and multiple antibiotic and surgical interventions. Antibiotic therapy should never be administered without addressing the underlying dental cause. Conservative non-surgical endodontic treatment is the treatment of choice for an extraoral sinus tract of endodontic origin.

Odontogenic cutaneous fistula mimicking malignancy

It is important for the dentists to make accurate diagnosis and appropriate treatment of odontogenic cutaneous fistula. Although large facial skin lesions may bring up malignancy on top of the differential list, careful evaluation including physical observation, imaging, and pathology can rule out malignancies.

Cutaneous neck lesion of occult odontogenic origin: search for the tooth

The differential diagnosis for inflammatory neck swellings is vast. A swelling of dental origin should be considered because, while rare, they mimic more common causes of neck lumps. We report the case involving a recurrent submandibular swelling in a young female patient that was presumed to be an epidermoid cyst by her general medical practitioner. After 6 months of unsuccessful treatment in the community, an odontogenic source was identified and treated successfully following referral to a local Oral and Maxillofacial department.

Odontogenic cutaneous sinus tract associated with a mandibular second molar having a rare distolingual root: a case report

Introduction

Odontogenic cutaneous sinus tracts are often misdiagnosed as lesions of non-odontogenic origin, leading to the treatment of patients with unnecessary and ineffective therapies. Sinus tracts of endodontic origin usually respond well to endodontic therapy. However, root canal treatment of mandibular molars with aberrant canal anatomy can be diagnostically and technically challenging. Herein we present a patient with a cutaneous odontogenic sinus tract in the right submandibular area.

Case report

A 23-year-old Chinese female patient presented with a cutaneous odontogenic sinus tract that was initially misdiagnosed as a sebaceous cyst. The patient had undergone surgical excision and traditional Chinese medical therapy before endodontic consultation. With the aid of cone beam computed tomography (CBCT), it was confirmed that the causative factor of the cutaneous odontogenic sinus tract was chronic periapical periodontitis of the right mandibular second molar, which had a rare and curved distolingual root. The resolution of the sinus tract and apical healing was accomplished following nonsurgical root canal treatment.

Conclusion

A dental aetiology must be included in the differential diagnosis of cutaneous sinus tracts in the neck and face. Elimination of odontogenic cutaneous sinus tract infection by endodontic therapy results in resolution of the sinus tract without surgical excision or systemic antibiotic therapy. This case report also indicates that CBCT imaging is useful for identifying the tooth involved, ascertaining the extent of surrounding bone destruction and accurately managing the aberrant canal morphology.