Congenital choristomas of the oral cavity in children

Oral Gastric Heterotopia: First Reported Case in the Hard Palate

Gastric heterotopia is characterized by the presence of mature gastric tissue outside the stomach, yet its occurrence in the palate has not been previously documented. We describe a case of gastric heterotopia in the hard palate of an elderly female patient, presenting as a swollen mass with associated secretion. Given the patient's age and clinical symptoms, a presumptive diagnosis of a malignant tumor originating from the minor salivary glands was made. An incisional biopsy of the mass revealed gastric heterotopia. Subsequently, the extended excision of the lesion was performed, leading to the full resolution of the patient's symptoms. After a two-year follow-up period, no evidence of recurrence was observed. The importance of this case, underscored by the unprecedented location of gastric heterotopia, emphasizes the critical need for thorough evaluation to avert misdiagnosis, as well as the complete surgical excision of the lesion to prevent recurrence.

Mucosal Soft Tissue Lesions

Mucosal soft tissue lesions are fairly common in the pediatric population. However, the precise prevalence is unknown. This is the result of the limited number of studies, the use of various diagnostic criteria in those studies, and the transient nature of commonly encountered lesions in this population. In this section, we seek to familiarize the pediatric pathologist with a sampling of mucosal soft tissue lesions encountered in pediatric patients, highlight key diagnostic features and correlations with systemic diseases should they exist.

Lingual Choristoma with Gastric Epithelium Revisited

The term 'choristoma' refers to normal appearing tissue in an abnormal location. We describe a case of choristoma with gastric epithelium of the dorsal tongue in a pediatric patient. Lingual choristomas are uncommon cystic or solid lesions which may demonstrate different types of tissue (e.g. gastric epithelium, respiratory epithelium, osseous and neuroglial tissue) histologically. Choristomas with gastric epithelium, also known as heterotropic gastric mucosa or foregut duplication cysts, are thought to arise from pluripotential cells of the embryonic foregut. They most frequently involve the anterior two-thirds of the tongue. Most patients are asymptomatic, but larger lesions may lead to feeding and breathing difficulties. Pathologic evaluation and surgical excision remain the mainstay of diagnosis and treatment, respectively. The pathologic characteristics of other congenital tongue lesions are also discussed.

Lingual cyst with respiratory epithelium: The importance of differential diagnosis

Lingual cyst with respiratory epithelium (LCRE) is a very rare congenital cyst of the tongue, floor of the mouth, pharynx or hypopharynx with 21 cases reported in the literature (1, 2). Differential diagnosis is very important for patients presenting with lingual cysts, as this may impact treatment and follow-up. LCRE should be included in the different diagnosis of dermoid cyst (3), teratoid cyst (4), epidermoid cyst (5), thyroglossal duct cyst (6), lymphoepithelial cyst (7), mucocele or ranula (8). Each entity has a peculiar histologic presentation, although the clinical aspect may be very similar (1). The dermoid cyst is lined by a keratinized squamous epithelium and contains skin appendages in the cyst. Epidermoid cyst is similar to the dermoid cyst but is characterized by non-keratinized squamous epithelium and has a lumen filled of keratin. Teratoid cyst contains derivatives of the endoderm, ectoderm and/or mesoderm. The thyroglossal duct cyst is usually lined by columnar, stratified squamous epithelium, or an intermediate transition type of epithelium, with the mandatory presence of thyroid tissue in the cyst wall. Lymphoepithelial cyst is identified by the presence of the lymphoid aggregates in the cyst wall. A mucous retention cyst, so called mucocele or ranula, contains mucin and granulation tissue (1). Read the full text [PDF]

THE "-OMAS" and "-OPIAS": Targeted and Philosophical Considerations Regarding Hamartomas, Choristomas, Teratomas, Ectopias, and Heterotopias in Pediatric Otorhinolaryngologic Pathology

The spectrum of "developmental" lesions that occur in the head and neck predominantly congenital in origin and arising at birth and/or discovered in childhood is broad and fascinating. These have been grouped into categories such as "ectopias", "heterotopias", "hamartomas", and "choristomas". On a philosophical and consequently systematic level, these lesions, mostly benign tumors seem to lack a true understanding of the pathogenetic foundation on which to base a more unified taxonomic designation. In this review, we will consider some of these select tumors as they represent syndromic associations (nasal chondromesenchymal hamartoma and DICER1 syndrome), the lingual choristoma from the perspective of its nomenclature and classification, lesions with ectopic meningothelial elements, and teratomas and the enigmatic "hairy polyp" in reference to a broader discussion of pathogenesis and pluripotent cells in the head and neck. A consistent thread will be how these lesions are designated with some final thoughts on future directions regarding the investigation of their pathogenesis and taxonomic nomenclature.

Diagnosis and management of congenital floor of mouth masses: A systematic review

OBJECTIVES

Determine the utility of preoperative imaging and the optimal course of management for congenital floor of mouth (FOM) cysts in infants.

METHODS

A systematic review of the literature was performed conforming to PRISMA guidelines. Pubmed, Embase and Cochrane Library databases were queried to identify cases of infants with congenital floor of mouth masses. Patient demographics, presenting findings, imaging, management, complications, and outcomes were determined.

RESULTS

85 patients were evaluated. 98% of patients presented at 16 months of age or younger. The most common presenting symptom was submental mass or swelling, 31.3%. Among the patients that underwent imaging, the suspected diagnosis obtained from imaging findings was consistent with the final pathologic diagnosis 59% of the time reported and inaccurate 34% of the time. There were multiple definitive treatment modalities described in the literature review including surgical excision, 82.3%, marsupialization, 12.9%, chemical injection 2.3%, sclerotherapy 1.2%,% and radiation, 1.2%. Recurrence rate after initial definitive treatment was as follows, surgical excision, 8.8%, marsupialization, 80%, sclerotherapy, 100%, chemical injection, 50%, and radiation, 100%.

CONCLUSION

Preoperative imaging studies should not be relied upon alone to determine suspected pathology and subsequent management in pediatric patients with FOM masses. It may be beneficial for these patients to undergo primary surgical excision regardless of imaging studies or suspected pathology. Needle aspiration offers limited addition to pathologic diagnosis and should only be performed in the setting of acute symptomatic management. Surgical excision should be considered as definitive treatment modality in all patients with FOM masses, regardless of the suspected diagnosis of ranula. Further multi-institutional cohort studies could be invaluable to elucidate definitive treatment guidelines in this patient population.

A Case Report of a Lingual Cyst Lined by Respiratory Epithelium in a Child

The lingual cyst lined by respiratory epithelium is a rare pathology. It probably appears from the default of undifferentiated cells of the foregut during embryonic growth. This pathology is seen more often in males and children; however, only 5 patients younger than 4 years old have been reported. The pathophysiology and the management of this cyst were described in a 4-year-old girl. She presented with a soft mass on the dorsum of the tongue covered by normal mucosa, which existed since her birth, causing difficulty in eating, breathing, and talking. The magnetic resonance described a hyperintense image with an anteroposterior diameter of 27 mm, craniocaudal of 19 mm, and transversal of 26 mm in the midline groove of the tongue; the scintigraphy showed normality. The enucleation of the lesion was performed, eradicating the capsule of the cyst and obtaining a complete cleavage. The histopathologic examination defined a cyst lined predominantly by respiratory epithelium. Unlike in other cases, in this case their cystic lining and capsular constituents were contemplated considering the current histological recommendations. It is relevant to differentiate this pathology from other cysts with similar histological findings.

Anomalies of the oral cavity in newborns

Examination of the oral cavity should be an essential part of the newborn assessment. Early detection of congenital disorders is essential to begin appropriate medical or surgical therapy and to prevent complications that could profoundly affect a child's life. The present review aims to describe the main anomalies of the oral cavity in infants and provide images in order to help the physician in current clinical practice.

Congenital cervical choristoma of the neck mimicking cystic lymphangioma

INTRODUCTION

Choristoma is a mass presenting normal histology, but in an abnormal location. Cystic choristoma is rarely reported in the head and neck region. Neonatal cystic masses in the neck suggest usually correspond to a diagnosis of cystic lymphangioma.

CASE REPORT

We report a case of a congenital cystic choristoma of the neck clinically and radiologically mimicking cystic lymphangioma.

DISCUSSION

Congenital cystic choristoma is an extremely rare lesion, essentially described in neonates, composed of various types of tissues. The diagnosis of congenital cystic choristoma may be suggested on imaging and must be confirmed by histopathological examination. Treatment consists of complete surgical resection.

Lingual cyst with respiratory epithelium: report of 2 cases and review of the literature

The lingual cyst with respiratory epithelium, a congenital cyst of the tongue or floor of the mouth, is lined predominately by respiratory-type epithelium. The terminology for this lesion was first proposed in 1999 by Manor et al., who stated that a descriptive term is best for this cyst of debatable pathogenesis. Although it is a cyst of foregut origin, the lingual cyst with respiratory epithelium is distinguished from the traditional enteric (foregut) duplication cyst in that the latter contains gastric and/or intestinal-type mucosa and has smooth muscle within the cyst wall. This article presents 2 new cases of this entity, as well as reviews the 19 cases that have been reported in the literature and were found to fulfill the histologic criteria of an lingual cyst with respiratory epithelium.

Respiratory distress associated with heterotopic gastrointestinal cysts of the oral cavity: A case report

Heterotopic gastrointestinal cysts of the oral cavity are benign lesions usually discovered during infancy. Their pathogenesis is not very clear. They are rare congenital anomalies that result from remnants of foregut-derived epithelium in the head, neck, thorax or abdomen during embryonic development. The majority of these lesions occur in the anterior ventral surface of the tongue and extend to the floor of the mouth. They are confused clinically by surgeons in cases of head and neck masses in children as ranulas, dermoid and thyroglossal cysts, and lymphangioma. We report the case of a 28-day newborn with a 3.6 cm oval mass on the floor of the mouth causing difficulty eating and cyanosis during crying. Complete surgical excision was performed by an oral approach under general anesthesia. Microscopic examination revealed gastric epithelium with tall columnar mucous cells on the surface and numerous short closed crypts, resembling fundal glands and mature gastric epithelium.

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There are less than a hundred cases reported in the medical literature.

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It is vital for surgeons and physicians to include this pathology in their differential diagnosis.

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Imaging studies are essential for obtaining clearer diagnostic possibilities.

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Complete surgical resection is needed to prevent recurrence.

Oral Lesions in Neonates

Oral lesions in neonates represent a wide range of diseases often creating apprehension and anxiety among parents. Early examination and prompt diagnosis can aid in prudent management and serve as baseline against the future course of the disease. The present review aims to enlist and describe the diagnostic features of commonly encountered oral lesions in neonates.

How to cite this article: Patil S, Rao RS, Majumdar B, Jafer M, Maralingannavar M, Sukumaran A. Oral Lesions in Neonates. Int J Clin Pediatr Dent 2016;9(2):131-138.

Choristoma: A rare congenital tumor of the tongue

Most congenital masses of the mouth floor are cystic, irrespective of their origin. They may obstruct airway or digestive tract or may present other complications. Recognizing and treating these masses expeditiously is imperative. Choristoma is a mass of normal tissue in an abnormal location; they are classified according to the predominant epithelial lining. Few cases have been reported lined with gastric and respiratory epithelia within the same cyst. This case report presents a 5-month-old boy with an infected choristoma involving the floor of the mouth and its successful management.

Oral foregut cyst in a neonate

Oral foregut cysts are congenital choristomas that arise in the oral cavity during embryonic development from remnants of foregut-derived epithelium. This is an unusual report of a neonate with a large congenital sublingual cystic lesion, extending superficially from the left ventral tongue to the anterior floor of the mouth, impeding breast-feeding. The differential diagnosis included dermoid cyst, epidermoid cyst, mucous retention cyst, and oral lymphangioma. The treatment of choice was enucleation under general anesthesia. Histology showed a cystic lesion with a ciliated pseudostratified columnar epithelium with numerous goblet cells. Immunohistochemistry was positive for cytokeratin 7 and thyroid transcription factor 1 and negative for cytokeratin 20, resulting in a final diagnosis of an oral foregut cyst. Three weeks after surgery, the tongue had healed with good mobility, and breast-feeding could be established. No recurrence was present at 6 months of follow-up.

Neonatal lingual choristoma with thyroid hemiagenesis

A 45-day-old infant presented with choking spells and cyanosis. Examination revealed a lingual cyst. Contrast-enhanced CT confirmed the diagnosis of lingual cyst with incidental thyroid hemiagenesis. The child underwent excision of the lesion, which was reported as lingual choristoma.

Oral foregut cyst in the ventral tongue: a case report

An oral foregut cyst is a rare congenital choristoma lined by the respiratory and/or gastrointestinal epithelium. The exact etiology has not been fully identified, but it is thought to arise from misplaced primitive foregut. This lesion develops asymptomatically but sometimes causes difficulty in swallowing and pronunciation depending on its size. Thus, the first choice of treatment is surgical excision. Surgeons associated with head and neck pathology should include the oral foregut cyst in the differential diagnosis for ranula, dermoid cyst, thyroglossal duct cyst and lymphangioma in cases of pediatric head and neck lesions.

Imaging of pediatric floor of mouth lesions

There is a vast spectrum of pathology that afflicts the floor of mouth in children. These span inflammatory conditions, vascular malformations, developmental anomalies, benign tumors and malignancies. While this area is readily evaluated on clinical exam, imaging is often performed to better characterize the disorder prior to management. The imaging modalities most frequently utilized are US, CT and MR. The purpose of this article is to describe the primary conditions that occur in this location in children so that radiologists may provide an appropriate differential diagnosis. These include ranula, venolymphatic malformation, dermoid, teratoma, foregut duplication cyst, hairy polyp, thyroglossal duct cyst and rhabdomyosarcoma. For each pathological condition, there will be a focus on describing its imaging manifestation. Floor of mouth anatomy, imaging approach during both prenatal and postnatal life and etiologies will be discussed. Surgical considerations and operative photographs will also be presented.