Quiste dermoide intraorbitario / Intraorbital dermoid cyst

Este artículo tuvo como objetivo describir las características clínicas, imagenológicas y la evolución posquirúrgica del quiste dermoide intraorbitario. Los quistes dermoides representan entre 3-9 por ciento de todos los tumores intraorbitarios. Se forman por el secuestro del ectodermo entre las líneas de fusión embrionaria de derivados mesodérmicos. La mayoría de los quistes dermoides son superficiales, y se presentan en la infancia temprana como aumentos de volumen discretos en ceja y párpado. Su crecimiento es lento, y generalmente se asocian a las suturas frontocigomática y frontoetmoidal. Es infrecuente su localización intraorbital. Se presenta una paciente femenina de 5 años de edad, quien fue ingresada con proptosis progresiva. Los exámenes imagenológicos mostraron un quiste intraorbitario derecho a nivel del proceso cigomático del frontal con erosión ósea subyacente. Se realizó su resección quirúrgica mediante orbitomía lateral por la técnica de Krönlein. El examen histopatológico informó quiste dermoide. Su evolución fue satisfactoria(AU)

This article aimed to describe the clinical and imaging characteristics of the intraorbital dermoid cyst, and its postoperative evolution. Dermoid cysts represent 3 percent-9 percent of all intraorbital tumors. They result from sequestrum of the ectoderm between the embryonic fusion lines of mesodermal derivatives. Most dermoid cysts are superficial, presenting in early childhood as a discrete volume increase in the eyebrow and the eyelid. Their growth is slow and they are generally associated to the frontozygomatic and the frontoethmoidal sutures. An intraorbital location is infrequent. A case is presented of a female 5-year-old patient admitted for progressive proptosis. Imaging studies showed a right intraorbital cyst at the level of the frontozygomatic process with underlying bone erosion. Surgical resection was performed by lateral orbitotomy with Krönlein's technique. Histopathological examination revealed a dermoid cyst. The patient's evolution has been satisfactory(AU)

Quiste dermoide nasofrontal: presentación de un caso y revisión narrativa / Nasofrontal dermoid cyst: case presentation

Las lesiones de la región nasofrontal en los niños son un reto diagnóstico debido a su rareza, y su potencial comunicación con el sistema nervioso central también aumenta su complicaciones. Dentro de las principales entidades de esta región se encuentran los quistes dermoides, los gliomas nasales y los encefaloceles. Un abordaje diagnóstico y terapéutico inapropiado podría generar desde simples recurrencias hasta fistulas e infecciones en el sistema nervioso central, que podrían contribuir a mayores complicaciones o incluso, poner en riesgo la vida de los pacientes.

Injuries to the naso-frontal region in children are a diagnostic challenge, associated with their rarity, their complexity also implies their potential communication with the central nervous system. Dermoid cysts, nasal gliomas, and encephaloceles are among the main entities in this region. An inappropriate diagnostic and therapeutic approach could generate from simple recurrences (as in our case), to fistulas and infections of the central nervous system that could contribute to greater complications or even put the lives of patients at risk.

Oral hairy polyp in a teenager: case report and literature review / Pólipo piloso oral em um adolescente: relato de caso e revisão de literatura

ABSTRACT Objective: To report an unusual case of oral hairy polyp (HP) and review the literature, providing epidemiological, clinical and histopathological information on this disease. Case description: A 12-year-old male patient was referred to a Stomatology department with a nodule in the posterior midline of the tongue. The patient did not know exactly when it arose or whether it had grown since then. Clinical exam revealed a bulky and mobile pedunculated mass lesion on the dorsum of the tongue, with a diameter of approximately 1 cm. The patient's mother reported no previous health problem. An excisional biopsy was performed, the surgical specimen was sent for anatomopathological analysis, and the findings were compatible with the diagnosis of HP. Comments: Hairy polyp is a rare lesion, especially in the oral region. The literature search revealed only 10 case reports of oral HP published between January 1999 and January 2019, and they revealed a predominance of the disease in female newborns. Two uncommon facts were presented in this case: the patient was male and diagnosis was made at 12 years old.

RESUMO Objetivo: Relatar um caso incomum de pólipo piloso (PP) oral e revisar a literatura para trazer informações epidemiológicas, clínicas e histopatológicas acerca da doença. Descrição do caso: Paciente do sexo masculino, 12 anos de idade, encaminhado ao Departamento de Estomatologia com nódulo na região posterior de linha média da língua. O paciente não soube relatar quando surgiu a lesão e se ela havia crescido desde então. O exame clínico revelou massa pedunculada, volumosa e móvel no dorso da língua, medindo aproximadamente 1,0 cm de diâmetro. A mãe do paciente relatou que ele nunca havia tido nenhum problema de saúde anterior. Foi realizada biópsia excisional e o material foi enviado para análise anatomopatológica, sendo os achados compatíveis com o diagnóstico de PP. Comentários: O pólipo piloso é uma lesão rara, especialmente na região oral. A pesquisa bibliográfica revelou apenas dez relatos de casos de PP oral, publicados entre janeiro de 1999 e janeiro de 2019, sendo observada predominância da doença em recém-nascidos do sexo feminino. Dois fatos incomuns ocorreram neste caso: tratava-se de um paciente do sexo masculino e o diagnóstico se deu aos 12 anos de idade.

Quiste de inclusión epidérmica intraóseo con osteólisis de la falange distal / Kyste épidermoïde intra-osseux s'associant à une ostéolyse de la phalange distale / Intraosseous Epidermoid Inclusion Cyst with Osteolysis of the Distal Phalanx

Un motivo común de consulta en la práctica de la cirugía de mano es la aparición de algún tipo de tumoración. Afortunadamente la mayoría de dichas lesiones son benignas, sin embargo no deben subestimarse ya que existen lesiones malignas que pueden en apariencia y comportamiento imitar lesiones benignas, lo que puede retardar el diagnóstico o causar errores en el tratamiento inicial con consecuencias desastrosas para la función e incluso para la vida del paciente. El abordaje debe realizarse de acuerdo con los protocolos y lineamientos establecidos para las tumoraciones del sistema musculoesquelético, y los procedimientos quirúrgicos se deben planificarse de manera cuidadosa contando con los recursos técnicos necesarios para la resección adecuada y la reconstrucción funcional en caso necesario(AU)

A common cause of care in hand surgery practice is the appearance of a tumor or tumor like lesion. Fortunately, the majority of them are benign. Nevertheless, malignant lesions with benign-like appearance or behavior should not be underestimate since it may cause delayed diagnosis or inappropriate initial treatment with catastrophic functional consequences or even life threatening. Approach must be done in accordance to musculoskeletal tumor guidelines and surgical procedures carefully planned and executed by a surgeon with the experience to effectively resect and reconstruct if needed(AU)

La survenue de quelque sorte de tumeur au niveau de la main conduit souvent à une consultation de chirurgie. Heureusement, la plupart de ce dites lésions sont bénignes, mais elles ne doivent pas être négligées, car il y a des lésions malignes pouvant faire évoquer des lésions bénignes du fait de leur aspect et comportement, en retardant ainsi le diagnostic et en provoquant des erreurs dans le traitement initial avec des conséquences néfastes pour la fonction, et même pour la vie du patient. L'approche doit suivre les règles et protocoles établis pour les tumeurs du système musculo-squelettique, et les procédés chirurgicaux doivent être planifiés soigneusement au moyen des ressources techniques nécessaires pour une adéquate résection et une reconstruction fonctionnelle en cas nécessaire(AU)

Síndrome de Goldenhar / Goldenhar syndrome

RESUMO Os autores apresentam um caso de síndrome de Goldenhar, com seus aspectos característicos e variações, observando uma criança do sexo masculino de 4 anos de idade no Serviço de Oftalmologia do Hospital São José na cidade de Teresópolis (RJ). O diagnóstico foi concluído devido às alterações externas e internas do paciente após ter sido avaliado pela pediatria, genética, otorrinolaringologia e oftalmologia. O espectro óculo-aurículo-vertebral (EOAV) conhecida como Síndrome de Goldenhar é uma condição rara, complexa e fenotipicamente variável. De origem ainda desconhecida é caracterizada por cistos dermóides epibulbares, apêndices auriculares e hipoplasia mandibular. Objetivamos com este relato de caso, dada a raridade desta síndrome e variedades do espectro de apresentação, aumentar o conhecimento da classe médica sobre este assunto, para facilitar seu reconhecimento e auxiliar condutas perante casos futuros.

ABSTRACT The authors present a case of Goldenhar syndrome, with its characteristic features and variations. A male child of four years old at the Ophthalmology Service, Hospital São José The diagnosis was completed due to external and internal changes of the patient, after being evaluated by pediatrics, genetics, otolaryngology and ophthalmology.The oculoauriculovertebral spectrum (OAVS) known as Goldenhar Syndrome is a rare, complex and phenotypically variable condition, of still unknown origin is characterized by dermoid cysts epibulbar, auricular appendices and mandibular hypoplasia. We aim to case report, given the rarity of this syndrome and varieties of presentation spectrum, increase knowledge of the medical profession on this subject, to facilitate recognition and help conduct before future cases.

Atypical Presentation of Temporal Dermoid Cyst: Case Report / Apresentação atípica de cisto dermoide temporal: caso clínico

Dermoid account for 0.04­0.06% of intracranial tumors. The rupture of these slowgrowing lesions are a rare event, generally taking place spontaneously. Their presentation are clinically variable according to cyst topography and integrity. Surgery remains the first-line therapy and gross total resection should be attempted if feasible. We report on a case of a 22-year-old male with a 2-year history of seizures and cognitive impairment and a temporal mesial dermoid cyst successfully treated with gross total resection microsurgery.

Os Cistos dermoides compreendem 0,04­0,06% dos tumores intracranianos. É uma lesão de crescimento lento, e sua ruptura é um evento raro e espontâneo. A variabilidade clínica vai de acordo com a topografia do cisto e sua integridade. A cirurgia continua a ser a terapia de primeira linha, e a ressecção total é a opção sempre que for possível. Os autores relatam um caso de paciente com 22 anos de idade com histórico de 2 anos de convulsões e comprometimento cognitivo e diagnosticado com um cisto dermoide mesial temporal, tratado com sucesso com ressecção microcirúrgica.

Quiste dermoide corneal bilateral / Bilateral corneal dermoid cyst

El dermoide es un tipo de coristoma (tejido embrionario normal en una localización anormal) que afecta con frecuencia la córnea. Aparece como una masa sólida, blanca, redonda y elevada. Suele localizarse en el limbo inferotemporal, aunque puede hacerlo en cualquier lugar del globo ocular o de la órbita. Se presenta un paciente masculino, de 8 años de edad, quien desde su nacimiento muestra una mancha blanca en ambos ojos, agudeza visual sin corrección de movimiento de mano a 33 centímetros en el ojo derecho y percepción luminosa en el ojo izquierdo. En la exploración oftalmológica de ambos ojos se apreciaron lesiones blanquecinas sobre la córnea. Se le realizó exéresis del quiste y queratoplastia lamelar de ambos ojos, con resultados visuales satisfactorios. Se concluye que el caso presenta un quiste dermoide corneal bilateral(AU)

Dermoid is a type of choristoma (normal embryonic tissue placed in an abnormal location) that frequently affects the cornea. It appears as a raised white round solid mass that may be located in the inferotemporal limbus and also in any other part of the eyeball or the orbit. This is 8 years-old boy who shows a white spot in both eyes since his birth, uncorrected visual acuity at hand movement of 33 cm in his right eye and light perception in his left eye. The ophthalmological examination of both eyes revealed whitish lesions on the cornea. The cyst was removed and lamellar keratoplasty was performed in both eyes, with satisfactory results. It was concluded that this patient has a bilateral corneal dermoid cyst(AU)

Dermoid cyst in the previous caesarean section scar / Cisto dermoide em cicatriz de cesariana preexistente

Dermoid cysts of the uterus are extremely rare. A case of an asymptomatic dermoid cyst in the previous caesarean section scar is reported in a 39-year-old woman who presented for pre-conception evaluation. A nodular lesion of the uterus was identified through transvaginal ultrasound examination and magnetic resonance imaging and its characteristics are described. The first treatment option was hysteroscopic resection but complete removal could not be achieved. Surgical excision is likely to be the definitive treatment and a hysterectomy will be proposed to the patient after she completes her family. Our literature review indicates that this is the first case of a dermoid cyst located in the previous caesarean section scar.

Cistos dermoides do útero são extremamente raros. Este é um relato de caso de cisto dermoide assintomático na cicatriz de cesariana preexistente em mulher com 39 anos que se apresentou para avaliação pré-concepcional. Foi identificada uma lesão nodular por exame ultrassonográfico transvaginal e ressonância magnética; descrevemos suas características. A primeira opção terapêutica foi a ressecção histeroscópica, mas não foi possível fazer uma remoção completa. É provável que a excisão cirúrgica seja o tratamento definitivo; será proposta uma histerectomia à paciente, depois de ter completado sua família. Nossa revisão da literatura indica que este é o primeiro caso de cisto dermoide localizado em uma cicatriz de cesariana preexistente.

Tumourlike Lesions of Skin - A Clinicopathological Analysis of 175 Cases.

As the skin is the largest and complex organ, a wide variety of tumourlike lesions are encountered in the clinical practice. The ability to properly diagnose & treat these common lesions & to distinguish them from malignant tumours is the vital skills for all clinicians. Objective: To analyse retrospectively tumourlike lesions of skin with respect to age, sex, clinical features and histopathological features in a tertiary referral centre in Maharashtra, India. Methods : The present study consisted of analysis of tumourlike lesions of skin received in the histopathology section of department of pathology over a period of 5 years that is from August 2005 to July 2010 .The material comprised of biopsies and excision specimens. The clinical and histopathological details were noted. The findings were compared with those reported by other authors. Results : One hundred and seventy five (175) cases of tumourlike lesions of skin were seen .These lesions presented as skin swellings or tumours. Maximum cases (34.8%) of tumourlike lesions occurred in fourth & fifth decades with male preponderance (1.35:1). The maximum number of cases was encountered in the head & neck region (63.4%). Their size ranged from 0.4 to 9 cms. Epidermal cyst was the commonest tumourlike lesion (59.4%) followed by dermoid cyst (13.1%).Other lesions were trichilemmal cyst, fibroepithelial polyp, keloid, hypertrophic scar and epidermal nevus. Conclusion : Tumourlike lesions are clinically diagnosed by their presentation. However, the histopathological examination confirms the clinical diagnosis. The pathologic evaluation of all tumourlike lesions is mandatory to avoid patient’s and family’s anxiety.

Testis tumor associated to microlithiasis / Tumor de testiculo asociado a la microlitiasis / Tumor de testiculo associado a microlitiase

OBJECTIVE: To discuss the relationship between testicular microlithiasis and testis tumors in children and to consider the chances of testis preserving surgery in specific cases. CASE DESCRIPTION: Pre-adolescent presenting testicular microlithiasis and a larger left testis, corresponding to a cystic testicular tumor. The tumor was excised, with ipsilateral testis preservation. Histology diagnosed a testis dermoid tumor. COMMENTS: The relationship between testis tumors and testicular microlithiasis is ill defined in children. Pediatric urologists need to develop specific follow-up protocols for pre-pubertal children. .

OBJETIVO: Discutir las implicaciones de la microlitíasis testicular en el niño con relación al riesgo oncológico implicado y la posibilidad de cirugía de preservación testicular en casos elegidos. DESCRIPCIÓN DEL CASO: Pre-adolescente presentando aumento microlitíasis testicular y aumento del testículo izquierdo, con lesión tumoral quística. La lesión fue resecada, con preservación del testículo y diagnóstico histológico de tumor dermatoide testicular. COMENTARIOS: La relación entre tumores de testículo y microlitíasis testicular es mal definida en niños y hay la necesidad de desarrollar protocolos de seguimiento específicos para esa franja de edad. .

OBJETIVO: Discutir as implicações da microlitíase testicular na criança com relação ao risco oncológico envolvido e a possibilidade de cirurgia de preservação testicular em casos escolhidos. DESCRIÇÃO DO CASO: Pré-adolescente apresentava microlitíase testicular e aumento do testículo esquerdo, correspondendo a tumor testicular cístico. Ressecou-se o tumor, com preservação do testículo. O diagnóstico histológico foi de tumor dermoide testicular. COMENTÁRIOS: A relação entre tumores de testículo e microlitíase testicular é mal definida em crianças e há a necessidade de desenvolver protocolos de seguimento específicos para essa faixa etária. .

Quiste dermoide verdadero en piso de boca / True dermoid cyst in the floor of the mouth

Los quistes dermoides son lesiones benignas de origen embrionario, con una incidencia del 0,01 por ciento de todos los quistes de la cavidad bucal. No presenta predicción por sexo y alrededor del 60 por ciento de los casos se desarrollan entre los 15 y 35 años de edad. El conocimiento de los hallazgos clínicos de este tipo lesiones es vital para un diagnóstico definitivo, sin embargo, este siempre debe ser corroborado mediante exámenes histopatológicos, especialmente, al realizar un diagnóstico diferencial entre los diferentes tipos de quiste dermoides u otras alteraciones a nivel oral con manifestaciones clínicas similares. El propósito de esta presentación reportar un caso clínico para ampliar conocimientos sobre el diagnóstico y tratamiento de este tipo de lesión debido a su infrecuencia en cavidad oral. La ubicación inusual de estos quistes en cavidad oral hace que, aún con una buena valoración clínica e imaginológica, el diagnóstico prequirúrgico preciso sea difícil. Es por esto que el tratamiento quirúrgico no sólo evita el riesgo de una complicación infecciosa y eventual malignización sino que permite obtener un diagnóstico definitivo mediante estudios histopatológicos(AU)

Dermoid cysts are benign lesions of embryonic origin, with an incidence of 0.01 percent of all cysts in the oral cavity. There is no prediction by sex and about 60 percent of cases develop at the age of 15 to 35 years old. Knowledge of the clinical findings of such injuries is vital for a definitive diagnosis; however, this should always be confirmed by histopathological examination, especially when making a differential diagnosis between different types of dermoid cyst or other pathologies with similar clinical manifestations. The purpose of this article is to expand knowledge about the diagnosis and treatment of this type of injury because of it is not frequent in the oral cavity. The unusual location of these cysts in the oral cavity makes hard the precise preoperative diagnosis, even with good clinical and radio-graphical assessment. The surgical treatment not only prevents the risk of infectious complications and possible malignancy but also, allows obtaining a definitive diagnosis by a histopathological study(AU)

Congenital inclusion dermoid cyst of the posterior fontanel: a case report

Background: Dermoid cysts are rare and benign tumors originating from failure of the normal embryologic development. Congenital inclusion dermoid cysts are usually located over the anterior fontanel. Surgical treatment is curative and provides good aesthetic results. The authors present a rare case of congenital inclusion dermoid cyst over the posterior fontanel and discuss the location, differential diagnosis, treatment and prognosis of this unusual pathological entity. Case description: A two-year old boy presented with a lesion on the posterior aspect of the head which had dated since birth. Imaging studies revealed an extracranial lesion over the posterior fontanel without intracranial extension. Surgical removal was performed and the histopathological examination confirmed the diagnosis of a dermoid cyst. The patient was discharged free of any medical complications. Conclusion: Although congenital inclusion dermoid cysts are more common over the anterior fontanel, they can occur over the posterior fontanel as well. Surgical treatment is curative in both locations with favorable aesthetic results.

Cisto dermoide lateral: relato de caso / Lateral dermoid cyst: a case report

O presente artigo relata o caso de um cisto dermóide lateral tratado cirurgicamente, acometendo o espaço submandibular esquerdo de uma criança com 9 anos de idade, com uma história de evolução de aproximadamente 1 ano e crescimento lento. A paciente foi admitida no serviço de ciurgia Bucomaxilofacial do Hospital Geral de Bonsucesso com queixa estética e sem sintomatologia dolorosa. O exame histopatológico evidenciou uma cavidade revestida por epitélio escamoso estratificado orto-ceratinizado com ceratina abundante no interior do lúmen cístico e anexos de glândulas sebáceas e folículos pilosos, compatível com o diagnóstico de cisto dermoide.

Quiste dermoide en la fontanela anterior: informe de caso / Dermoid cyst of the anterior fontanel: case report

Introducción. Los quistes dermoides en la fontanela anterior son lesiones raras, constituyen alrededor del 0.1-0.5 % de todos los tumores craneales. Se originan durante etapas tempranas del desarrollo y derivan de tejido epitelial embrionario localizado a lo largo de la línea media. Se diagnostican y tratan con cirugía en la niñez. Los estudios de rayos X y la tomografía descartan la extensión intracraneal. Presentación. Se presenta un caso en un niño de seis años con quiste en la fontanela anterior de 5 cm de alto por 8 cm de diámetro, sin compromiso neurológico quien fue sometido a cirugía. La pieza quirúrgica mostró lesión uniforme, encapsulada, móvil, blanda contenido material sebáceo. Conclusión. La clínica, imagen y patología confirmaron el diagnóstico de quiste de tipo dermoide, siendo la evolución posoperatoria deldel paciente satisfactoria...

Quiste dermoide del suelo de la boca / Dermoid cyst in the mouth floor

El quiste dermoide representa menos del 0,01 por ciento de todos los quistes de la cavidad bucal. Su ubicación más frecuente es en suelo de boca. Se presenta el caso de una paciente femenina de 19 años de edad que hacía aproximadamente 7 años había notado un aumento de volumen debajo de la lengua, el cual le crecía paulatinamente y ya se apreciaba por fuera de la cara. Además, le ocasionaba molestias al hablar y al masticar. Se realizaron estudios complementarios y bajo anestesia general nasotraqueal. Se procedió a su exéresis quirúrgica mediante un abordaje intrabucal, donde se obtuvieron excelentes resultados estéticos y funcionales. El diagnóstico histopatológico se correspondió con un quiste dermoide de suelo de boca. La paciente no ha tenido recurrencia de la lesión transcurridos tres años de la operación. El quiste dermoide de suelo de boca se presenta como una tumoración benigna de la línea media. La exéresis intrabucal demuestra beneficios estéticos y funcionales(AU)

The Dermoid cyst account for the 0.01 percent of all cysts of buccal cavity. Its more frequent location is in the mouth floor. This is the case of a female patient aged 19 who approximately 7 years noted an increase of volume under tongue growing gradually and noting outside face and the discomfort at to speak and to chew. Complementary studies were conducted and under general anesthesia a surgical exeresis was carried out by intrabuccal approach achieving excellent esthetic and functional results. Histopathologic diagnosis matched with a dermoid cyst of mouth floor. Patient has not lesion recurrence after three years after operation. We conclude that the Dermoid cyst of mouth floor appear as benign tumor of middle line. The intrabuccal exeresis demonstrates esthetic and functional benefits(AU)

Recidiva de cisto dermoide congênito de localização paramediana / Recurrence of congenital dermoid cyst of paramedian location

Introdução: O cisto dermoide é um cisto de desenvolvimento incomum na face e envolve mais frequentemente o assoalho bucal. A maioria das lesões ocorre em adultos jovens, com ligeira predileção pelo gênero masculino. As lesões neonatais e em crianças são extremamente raras. Manifesta-se como tumefação flutuante, assintomática e de crescimento lento e progressivo, atingindo dimensões variadas. Sua cápsula pode conter um ou mais anexos cutâneos, como glândulas sebáceas, pêlos ou unhas. O tratamento é cirúrgico, através de enucleação, sendo sua recidiva incomum. O aspecto clínico, histopatológico, diagnóstico diferencial e tratamento de um caso de cisto dermoide congênito, e de sua recidiva, são discutidos pelos autores.

Introduction: The dermoid cyst is a cyst of unusual development in the face and more often involves the mouth floor. Most injuries occur in young adults with a slight predilection for males. Lesions in neonatal and children are extremely rare. It manifests as swelling floating asymptomatic and slow-growing and progressive, reaching dimensions. His capsule may contain one or more skin appendages such as sebaceous glands, hair or nails. The treatment is surgical, by enucleation, and its recurrence uncommon. The clinical appearance, histopathology, differential diagnosis and treatment of a case of congenital dermoid cyst, and its recurrence, are discussed by the authors.

Epidermoid cyst: highlights on diagnosis and magnetic resonance imaging features / Cisto epidermóide: processo de diagnóstico e características das imagens por ressonância magnética

Purpose: Epidermoid and dermoid cysts are extremely rare developmental cysts of a benign nature, which may occur anywhere in the body, although about 7% are found in the head and neck. This article reports a clinical case of a patient who had an epidermoid cyst and its magnetic resonance imaging (MRI) features. Case report: This case discusses an epidermoid cyst in a 36-year-old woman complaining about speech difficulty. Clinical examination revealed an extensive swelling on the floor of the mouth. MRI findings showed a cystic homogenous lesion located underneath the mylohyoid muscle which was removed by surgery. Histological examination of the mass confirmed the diagnosis of an epidermoid cyst. Conclusion: We concluded that MRI was considered useful for a more accurate diagnosis prior to treatment.

Proposta: Cistos epidermóide e dermóide são cistos de desenvolvimento extremamente raros, de natureza benigna, que podem ocorrer em qualquer região do corpo e somente 7% são encontrados na região de cabeça e pescoço. Este artigo apresenta o caso clínico de uma paciente que possuía um cisto epidermóide juntamente com as características das imagens por ressonância magnética. Descrição do caso: Paciente do gênero feminino, 36 anos, apresentou-se com queixa de dificuldade de fonação e deglutição. O exame clínico intrabucal revelou uma extensa tumefação em soalho bucal. As imagens por ressonância magnética indicaram uma lesão de natureza cística, homogênea, de conteúdo sólido e localizada abaixo do músculo milohiódeo. A lesão foi enucleada e encaminhada para exame anatomopatológico, cujo diagnóstico foi compatível com cisto epidermóide. Conclusão: A imagem por ressonância magnética foi essencial para determinar as características da lesão de acordo com a sua localização anatômica.

Quiste dermoide de piso de boca: presentación de un caso clínico / Dermoid cyst of the mouth floor: report of a clinical case

El quiste dermoide es una lesión benigna que se origina por atrapamiento del epitelio germinal durante el cierre de los arcos branquiales. Se presenta generalmente entre la segunda y tercera décadas de la vida y no tiene predilección por sexo. El tratamiento es quirúrgico. La recidiva es poco frecuente y el pronóstico es favorable.

Dermoid cyst of ovary

The patient was a 23 years unbooked primigravida who presented through emergency with the history of gestational amenorrhea of 12 weeks and acute pain in the left iliac fossa for the last 3 hours. Urgent ultrasound revealed viable pregnancy of 12 weeks along with a large left ovarian cyst of heterogenous echogenicity. A diagnosis of torsion of right ovarian cyst was made and immediate laparotomy was done after counseling of the family and preparing the patient. Per-operatively, it was found that left ovarian cyst had undergone torsion. Histopathology confirmed the diagnosis of dermoid cyst