Tumores cardíacos pediátricos: características de imagens ecocardiográficas / Pediatric cardiac tumors: echocardiographic imaging features

Tumores cardíacos (TC) em crianças são lesões muito raras, mas seu diagnóstico é fundamental para a conduta adotada para o paciente. A ecocardiografia é a modalidade de imagem cardiovascular mais utilizada na prática clínica para o diagnóstico inicial de TC em pacientes pediátricos. Conhecer as características ecocardiográficas das TCs pode possibilitar um diagnóstico cada vez mais precoce e a identificação de sua etiologia mais provável. Os TCs primários e benignos são os mais frequentes na população pediátrica. Entre os TCs benignos, os mais frequentes em fetos e neonatos são rabdomiomas e teratomas. Em crianças e adolescentes, rabdomiomas e fibromas são os mais comuns. Neste artigo, descrevemos as características ecocardiográficas dos principais TCs em idades pediátricas.(AU)

Cardiac tumors (CTs) in children are very rare, but their diagnosis is crucial for patient management. Echocardiography is the most commonly used cardiovascular imaging modality in clinical practice for the initial diagnosis of CTs in pediatric patients. Knowing the echocardiographic characteristics of CTs can enable an increasingly early diagnosis and the identification of its most likely etiology. Primary and benign CTs are the most frequent types in the pediatric population. Among benign CTs, the most frequent in fetuses and neonates are rhabdomyomas and teratomas. In children and adolescents, rhabdomyomas and fibromas are more common. Here we describe the echocardiographic characteristics of the most common CTs in pediatric patients.(AU)

Reporte de un caso fatal de encefalitis autoinmunitaria asociada a teratoma ovárico / Report of a fatal case of autoimmune encephalitis associated with an ovarian teratoma

INTRODUCCIÓN: El teratoma del ovario es el tumor de células germinales más frecuente. Entre sus complicaciones se describen algunos síndromes paraneoplásicos, como la encefalitis por anticuerpos contra el receptor N-metil-D-aspartato (NMDA). CASO CLÍNICO: Mujer de 22 años sin antecedentes de importancia que consulta por cuadro clínico de 4 días de evolución caracterizado por síntomas psiquiátricos y un episodio convulsivo. Se considera un cuadro de meningoencefalitis y se indica manejo antibiótico de amplio espectro y antiviral. Ante el deterioro se sospecha una encefalitis autoinmunitaria, se identifica un tumor anexial en los estudios imagenológicos compatible con teratoma y se confirma el diagnóstico con el hallazgo de anticuerpos NMDA en el líquido cefalorraquídeo. A pesar de su resección y manejo sistémico, fallece a los 5 meses. DISCUSIÓN: La encefalitis autoinmunitaria asociada a un teratoma es inusual, pero es una complicación que debe sospecharse como diagnóstico de exclusión. La mayoría tienen un pronóstico favorable, aunque hasta una cuarta parte de los casos puede asociarse a daño irreversible en la corteza del hipocampo e incluso la muerte, principalmente cuando el diagnóstico y el tratamiento son tardíos. CONCLUSIONES: Este caso es un reto clínico que representa un vacío en la evidencia actual, puesto que no existe un estándar de manejo de los teratomas. Se propone que, una vez diagnosticado un teratoma, se realice una cistectomía ovárica. Son necesarios más estudios para validar esta recomendación.

INTRODUCTION: The ovarian teratoma is the most common cell germ tumor. Some paraneoplastic syndromes have been described, including the anti-N-methyl-D-aspartate (NMDA) receptor encephalitis as part of its complications. CASE REPORT: A 22 years old female patient with no important medical history, consults due to an acute psychotic disorder and a convulsion. A meningoencephalitis was considered and broad-spectrum antibiotics and antivirals were started. Faced with deterioration, an autoimmune encephalitis is considered as well. Imaging studies revealed an ovarian teratoma and diagnosis was confirmed with antibodies against NMDA receptor in cerebrospinal fluid. Despite its resection and systemic management, the patient dies after 5 months. DISCUSSION: The autoimmune encephalitis associated with an ovarian teratoma is rare, its a complication that must be suspected as an exclusion diagnosis and most have a favorable prognosis, however up to a quarter of cases can be associated with irreversible damage to the hippocampal cortex and even death, mainly when late diagnosis and treatment are made. CONCLUSIONS: This case is a clinical challenge, no evidence is available since there is no standard for teratoma management. It is proposed that once a teratoma is diagnosed, an ovarian cystectomy is performed. Further studies are necessary to validate this recommendation.

Presentación inusual de teratomas ováricos bilaterales en gemelas / Bilateral ovarian mature teratomas in twins: an unsual presentation

RESUMEN Los teratomas maduros son los tumores ováricos más frecuentes en edad pediátrica. A la fecha, se han descrito escasos reportes sobre su aparición en gemelas. Se presenta el caso de teratomas ováricos bilaterales en gemelas bicoriales, tratadas con tumorectomía laparoscópica. A los 45 días post-operatorios, ambas presentan recurrencia bilateral con marcadores tumorales negativos. Se realiza una nueva tumorectomía laparoscópica, cuyo estudio histopatológico confirma teratomas maduros. Presentan segunda recurrencia evidenciada en control imagenológico a los 2 meses post-quirúrgicos. Se plantea la posible asociación genética y/o familiar en la aparición de teratomas ováricos, la cual, hasta el momento, es prácticamente desconocida.

ABSTRACT Mature cystic teratomas are the most frequent ovarian tumor in children. There are few reports describing mature teratoma in twins to date. We present a case of bicorial twins with bilateral ovaric mature cystic teratoma treated with laparoscopic tumorectomy. 45 days after surgery, both present bilateral recurrence with negative tumor markers. The patients underwent a new laparoscopic tumor resection, where histopathological diagnosis confirms mature teratomas. Ultrasound control describes second recurrence 2 months after surgery. There is a possible genetic and/or family association in the presentation of ovarian teratomas, which currently, is unknown.

Rare case of sarcomatoid squamous cell carcinoma arising in an ovarian mature teratoma / Caso raro de carcinoma espinocelular sarcomatoide que surge em um teratoma ovariano maduro

Abstract Although mature cystic teratoma (MCT) is benign, malignant transformation (MT) occurs in ~ 1% to 2% of all cases, and usually consists of squamous cell carcinoma (SCC), which accounts for ~ 80% of the cases. Spindle-cell (sarcomatoid) carcinoma (SCSC) is an uncommon type of SCC, comprising up to 3% of all cases. The lack of characteristic symptoms and specific imaging findings may lead to preoperative misdiagnosis. Moreover, the clinicopathologic characteristics, the treatment, the prognostic factors and the mechanism of MT have not yet been well understood due to the rarity of such tumors, especially in women of reproductive age. The authors present a case of a 34- year-old patient with 14 weeks of gestation who was diagnosed with an adnexal mass suggestive of ovarian teratoma. A laparoscopy salpingo-oophorectomy was performed after 6 months of delivery, and the histological exam revealed a sarcomatoid SCC in the MCT.

Resumo Embora o teratoma cístico maduro (MCT) seja benigno, a transformação maligna (MT) ocorre em cerca de 1% a 2% dos casos, e geralmente apresenta-se sob a forma de carcinoma espinocelular (CEC), responsável por cerca de 80% dos casos. O carcinoma (sarcomatoide) de células fusiformes (CSCF) é um tipo incomum de CEC, compreendendo até 3% de todos os casos. A falta de sintomas característicos e achados imagiológicos específicos pode levar a erros diagnósticos pré-operatórios. Além disso, as características clinico-patológicas, o tratamento, os fatores prognósticos e o mecanismo da MT ainda não são bem compreendidos devido à raridade de tais tumores, principalmente em mulheres em idade reprodutiva. Os autores apresentam um caso de uma paciente de 34 anos com 14 semanas de gestação que foi diagnosticada comumamassa anexial sugestiva de teratoma do ovário. A anexectomia laparoscópica foi realizada após 6 meses do parto, e o exame histológico revelou um CEC sarcomatoide tendo como origem um MCT.

Tumores cardiacos primarios fetales: revisión de la literatura / Primary fetal cardiac tumors: review of the literature

Los tumores cardiacos primarios fetales representan una entidad de baja incidencia en la práctica clínica. La gran mayoría corresponde a lesiones benignas, siendo el rabdomioma el tipo más común. Si bien, es frecuente la regresión espontánea de este tipo de lesiones durante el embarazo, los tumores cardiacos fetales pueden asociarse a complicaciones como obstrucción del flujo cardíaco, insuficiencia valvular, arritmias, insuficiencia cardíaca e hidrops fetal, pudiendo conducir incluso a la muerte fetal. El mayor desarrollo de técnicas imagenológicas ha permitido un aumento en el número y precisión de los diagnósticos prenatales de tumores cardiacos, generando al mismo tiempo, nuevos desafíos y alternativas en relación al abordaje terapéutico. El objetivo del presente artículo de revisión es exponer la evidencia actual en relación al diagnóstico prenatal, manejo, complicaciones y condiciones asociadas de los tumores cardiacos fetales más frecuentes.

Fetal primary cardiac tumors represent a low incidence entity in clinical practice. The vast majority corresponds to benign lesions, with rhabdomyoma being the most common type. Although spontaneous regression of this type of lesions during pregnancy is frequent, fetal cardiac tumors can be associated with complications such as obstruction of cardiac flow, valvular insufficiency, arrhythmias, heart failure and fetal hydrops, which can even lead to fetal death. The greater development of imaging techniques has allowed an increase in the number and precision of prenatal diagnoses of cardiac tumors, generating at the same time, new challenges and alternatives in relation to the therapeutic approach. The objective of this review article is to present the current evidence regarding the prenatal diagnosis, management, complications and associated condition s of the most frequent fetal cardiac tumors.

Adolescente con teratoma mediastinal y compromiso pericárdico / Adolescente com teratoma mediastinal e envolvimento pericárdico / Adolescent with mediastinal teratoma and pericardial involvement

Se presentó un paciente de 14 años con antecedentes de salud que acudió a consulta por presentar dolor torácico de 6 días de evolución sin irradiación y con ausencia de fiebre, disnea u otros síntomas. En la radiografía de tórax se observó una masa mediastinal anterior y media que se confirmó con la tomografía computarizada y donde la localización y las características imagenológicas sugirieron el diagnóstico de teratoma mediastinal. Se realizó exéresis del tumor que comprometía también parte del pericardio, confirmándose histológicamente por anatomía patológica la presencia de un teratoma quístico maduro del mediastino(AU)

A 14-year-old patient with a history of health who attended the clinic due to chest pain that lasted six days without irradiation and with absence of fever, dyspnea or other symptoms. The chest radiograph showed an anterior and middle mediastinal mass that was confirmed with computed tomography and where the location and imaginal characteristics suggested the diagnosis of mediastinal teratoma. The excision of the tumor that also compromised part of the pericardium was performed, confirming histologically by pathological anatomy the presence of a mature cystic mediastinal teratoma(AU)

Um paciente de 14 anos de idade, com histórico médico que se apresentou na clínica devido a dor torácica de seis dias de evolução sem irradiação e sem febre, dispnéia ou outros sintomas, foi apresentado. A radiografia de tórax mostrou uma massa mediastinal anterior e média que foi confirmada com tomografia computadorizada e onde a localização e características de imagem sugeriram o diagnóstico de teratoma mediastinal. O tumor foi extirpado, o que também comprometeu parte do pericárdio, e a presença de um teratoma cístico mediastinal maduro foi confirmado histologicamente por anatomia patológica(AU)

Fistulización a recto de un teratoma quístico maduro, una rara complicación / Rectal fistulization of a mature cystic teratoma, a rare complication

RESUMEN Los teratomas quísticos maduros son los tumores ováricos más frecuentes. La fistulización de estos a órganos vecinos (colon, intestino delgado y vejiga) es una complicación que cuando se presenta nos obliga a descartar un proceso infiltrativo. Tanto la malignización como la formación de fistulas son complicaciones excepcionales. Está descrito en la bibliografía la malignización como mecanismo de formación de dichas fistulas. Este hecho nos suele obligar a llevar a cabo intervenciones agresivas, como exenteraciones pélvicas anteriores y posteriores. Sin embargo, una revisión de los casos publicados (18) muestra que sólo el 22 % de las fistulas son resultado de una malignización de dicho teratoma. Presentamos una paciente con un teratoma quístico maduro que fistulizó a recto y su manejo en nuestro servicio. Precis: La fistulización a órganos vecinos de un teratoma es una complicación excepcional que requiere un diagnóstico preciso puesto que no siempre es secundaria a neoplasia.

ABSTRACT Mature cystic teratomas are the most common ovarian tumors. The fistulization of these teratomas to adjacent organs (colon, small intestine and bladder) is a complication that when it occurs forces us to rule out an infiltrative process. Together with malignancy, the fistula is a rare complication. Literature describes malignancy as a mechanism for the formation of these fistulas. This event usually forces us to carry out aggressive interventions, such as anterior and posterior pelvic exenterations. However, the case records of 18 patients report that only 22 % of fistulas are produced by malignant teratoma. The following case study presents a mature cystic teratoma that fistulated the rectum and its management in our service.

Recidiva de teratoma ovárico tras encefalitis anti-NMDA y manejo de la fertilidad: caso clínico / Ovarian teratoma recurrence after anti-NMDA encephalitis and fertility management: a clinical case

RESUMEN CASO CLÍNICO: la encefalitis anti receptor N-metil D-aspartato (NMDAR) es un trastorno autoinmune con un amplio espectro de síntomas neuropsiquiátricos. Se presenta el caso de una mujer de 22 años con una encefalitis anti-NMDA que cursó con amnesia, crisis parciales complejas y alteraciones del comportamiento asociado a un teratoma ovárico. La evolución fue adecuada con cirugía e inmunosupresores. A los tres años se objetivó un teratoma contralateral, sin recidiva de encefalitis; que fue extirpado tras estimulación ovárica para criopreservación de ovocitos. CONCLUSIONES: el teratoma ovárico debe ser sospechado ante la presencia de una encefalitis atípica. Antes de realizar cirugías ováricas repetidas, debe valorarse la opción de vitrificación ovocitaria si los deseos genésicos de la mujer no están cumplidos.

ABSTRACT CLINICAL CASE: anti-N-methyl-D-aspartate-receptor (NMDAR) encephalitis is an autoimmune disorder with a wide sprectrum of neuropsyquiatric symtoms. A case of a 22 years old woman with NMDAR encephalitis presenting with amnesia, focal complex seizures and behavior disturbances associated with an ovarian teratoma is reported. Three years after the first episode, a contralateral teratoma was observed, with no recurrence of the encephalitis; teratoma excision was performed, after controlled ovarian stimulation for oocyte cryopreservation. CONCLUSIONS: ovarian teratoma must be suspected when atypical encephalitis occurs. Before performing repetead ovarian surgeries, oocyte vitrificaction must be considered as a fertility-sparing option in women who have not completed their childbearing wishes.

Giant Epignathus Teratoma Discovered at Birth: A Case Report and 7-Year Follow-Up

Abstract Teratomas are tumors composed by tissues derived from the three germ cell layers, and they are relatively uncommon in head and neck. The term epignathus has been applied to teratomas from the oropharynx. This paper reports the case of a giant epignathus teratoma discovered at birth, which was successfully managed and followed up for 7 years. A newborn boy presented a polypoid tumor mass exteriorizing through the mouth over a length of 9 cm, with some surface areas resembling skin and others exhibiting hair. Computed tomography showed that the mass arose deep from the left hemiface. Alpha-fetoprotein (AFP) levels were high (316,000 ng/mL). Surgery was performed and microscopic analysis confirmed the diagnosis of mature teratoma. Because of residual tumor and high AFP levels, the patient was submitted to chemotherapy, resulting in complete regression of the lesion and normalization of AFP levels. Surgical repair of a cleft palate was performed at 5 years of age. At 7 years of age, the patient was in good general health and showed no clinical signs of recurrence. Although epignathus is a rare condition, it should be diagnosed in the fetus as early as possible. Prenatal care provides unquestionable benefits, providing the early diagnosis of anomalies that can jeopardize the life of the fetus and contributing to the indication of cases that require treatment before birth.

Resumo Teratomas são tumores constituídos por tecidos derivados das três camadas de células germinativas e são relativamente incomuns em cabeça e pescoço. O termo epignathus tem sido utilizado para designar teratomas que se originam na orofaringe. Este artigo relata o caso de um teratoma epignathus gigante descoberto ao nascimento, o qual foi tratado com sucesso e proservado por 7 anos. Um menino recém-nascido apresentou uma massa tumoral polipoide que se exteriorizava através da boca por uma extensão de 9 cm, com regiões da superfície semelhantes à pele e outras exibindo pelos. Exame de tomografia computadorizada revelou que a massa se originava profundamente na hemiface esquerda. Os níveis de alfa-fetoproteína (AFP) se apresentavam elevados (316.000 ng/mL). Foi realizada cirurgia e a análise microscópica confirmou o diagnóstico de teratoma maduro. Por apresentar lesão residual e altos níveis de AFP, o paciente foi submetido à quimioterapia, resultando em regressão completa da lesão e normalização dos níveis de AFP. Correção cirúrgica de uma fenda palatina foi realizada aos 5 anos de idade. Aos 7 anos de idade, o paciente apresentava um bom estado de saúde geral, sem sinais clínicos de recorrência da lesão. Embora o epignathus seja uma condição rara, seu diagnóstico no feto deve ser realizado o mais precocemente possível. O cuidado pré-natal proporciona benefícios inquestionáveis, permitindo o diagnóstico precoce de anomalias que podem comprometer a vida do feto e contribuindo para a indicação de casos que requerem tratamento antes do nascimento.

Teratoma mediastinal grande asociado a derrame pleuropericárdico severo por perforación de ambas estructuras / Large mediastinal teratoma associated with severe pleural pericardial stroke due to perforation of both structures

Se presenta el caso clínico de un paciente de 21 años de edad, quien ingresa en el Servicio de Cardiología del Hospital Provincial Docente Clinicoquirúrgico Saturnino Lora Torres por presentar pericarditis aguda de evolución tórpida. Al realizarle la tomografía axial computarizada del mediastino se diagnosticó un teratoma asociado a derrame pleuropericárdico severo por ruptura de ambas estructuras. Fue intervenido con circulación extracorpórea y se confirmó el diagnóstico histológico

The case report of a 21 years patient is presented who is admitted in the Cardiology Service of Saturnino Lora Torres Teaching Clinical Surgical Provincial Hospital due to acute pericarditis of torpid course. When the computerized axial tomography of the mediastinal cavity was carried out, a teratoma associated with severe pleural pericardial stroke due to rupture of both structures was diagnosed. He was treated with extracorporeal circulation and the histologic diagnosis was confirmed

Evaluación de tumores cardiacos por tomografía computada multidetector y resonancia magnética cardiaca / Evaluation of cardiac tumors by multidetector computed tomography and magnetic resonance imaging

Resumen Los tumores cardiacos constituyen una patología poco frecuente (0.002-0.3%) en todos los grupos de edad, sin embargo tienen importancia clínica por el órgano que comprometen. Se clasifican en primarios (benignos o malignos) y secundarios (metástasis). De los primarios el mixoma es el tumor benigno más común, y el sarcoma representa la mayoría de las lesiones malignas. Las metástasis cardiacas son más frecuentes que los tumores primarios. Las manifestaciones clínicas de los tumores cardiacos son poco específicas y varían de acuerdo a su localización, tamaño y agresividad. El uso de tomografía computada multidetector (TCMD) y resonancia magnética (RM) nos ayuda a tener conocimiento de la localización, el tamaño, las relaciones anatómicas y el compromiso de las estructuras adyacentes; además, la RM ayuda a la caracterización tisular del tumor. Es por eso que los estudios en imagen cardiovascular no invasiva tienen un papel importante en la caracterización de estas lesiones y su diagnóstico diferencial entre ellas.

Abstract Cardiac tumors, are a rare pathology (0.002-0.3%) in all age groups, however, they have a clinic importance, due the affected organ. They are classified in primary (benign or malignant) and secondary (metastasis) types. Among primary type, mixoma, is the most common benign tumor, and sarcoma represents most of the malignant injuries. Cardiac metastasis are more frequent than primary tumors. Clinic effects of cardiac tumors are unspecific and vary according their location, size and agresivity. The use of Multidetector Computed Tomography (MDCT) and Magnetic Resonance Imaging (MRI) assist on the location, sizing, anatomical relationships and the compromise of adyacents structures, besides, MRI is useful for tissue characterization of the tumor. Due to the previous reasons, studies based on noninvasive cardiovascular imaging, have an important role on the characterization of these lesions and the differential diagnosis among them.

Abnormal radioiodine uptake on post-therapy whole body scan and sodium/iodine symporter expression in a dermoid cyst of the ovary: report of a case and review of the literature

In patients affected by differentiated thyroid cancer, the whole-body scan (WBS) with 131-radioiodine, especially when performed after a therapeutic activity of131I, represents a sensitive procedure for detecting thyroid remnant and/or metastatic disease. Nevertheless, a wide spectrum of potentially pitfalls has been reported. Herein we describe a 63-year-old woman affected by follicular thyroid cancer, who was accidentally found to have an abdominal mass at post-dose WBS (pWBS). pWBS showed abnormal radioiodine uptake in the upper mediastinum, consistent with lymph-node metastases, and a slight radioiodine uptake in an abdominal focal area. Computed tomography revealed an inhomogeneous mass in the pelvis, previously unrecognized. The lesion, surgically removed, was found to be a typical dermoid cyst of the ovary, without any evidence of thyroid tissue. By immunohistochemistry, a moderate expression of the sodium-iodine symporter (NIS) was demonstrated in the epithelial cells, suggesting a NIS-dependent uptake of radioiodine by the cyst.

Tumor de Krukenberg del ovario asociado a teratoma maduro / Krukenberg tumor of the ovary associated with mature teratoma

Se reporta un caso excepcional de tumor de Krukenberg ovárico bilateral asociado a teratoma maduro encontrado en una mujer de 54 años. La ecografía mostró al lado derecho tumor ovárico sólido de 55 mm y al lado izquierdo tumor quístico de 125 mm. Se realizó histerectomía total, salpingooforectomía bilateral, resección del epiplón mayor y muestras peritoneales. Al tercer día postcirugía, la paciente presentó signos de tromboembolismo pulmonar masivo y aunque recibió terapia anticoagulante falleció al quinto día postoperatorio. El estudio histológico mostró infiltración masiva de carcinoma de células en anillo positivas para citoqueratina en ambos ovarios. El ovario derecho mostró la forma sólida clásica del tumor de Krukenberg mientras que el ovario izquierdo correspondió a un quiste dermoide con infiltración tumoral de carcinoma de células en anillo en la pared.

An exceptional case of bilateral Krukenberg tumor of the ovary associated with mature teratoma presented in a 54 years old patient is reported. The ultrasound showed a 55 mm solid right ovarian tumor and a 125 mm left cystic ovarian tumor. Hysterectomy and bilateral salpingoophorectomy was performed including omental resection and peritoneal biopsies. Massive pulmonary embolism was detected in the third day after the surgery. Even anticoagulant therapy was established the patient died in the fifth postoperative day. The histological study revealed massive infiltration of signet ring cell carcinoma with positive expression for cytokeratin in both ovaries. The right ovary showed the classical solid form of the tumor. The left ovary was a dermoid cyst with signet ring cell carcinoma infiltrating the cystic wall.

Intrapulmonary teratoma presenting with tricoptysis: A case report and review of the literature.

Intrathoracic teratoma usually occurs in the mediastinum but rarely, these may originate from the lung. We report a case of an intrapulmonary teratoma in a 34-year-old male.

Thoraco-abdominal mature teratoma in a left diaphragmatic hernia.

This case describes a contiguous mediastinal and retroperitoneal mature teratoma in a congenital diaphragmatic defect, a combination that is hitherto unreported in literature. It substantiates embryological chronology of events during the cephalad migration of the primordial germ cells through the developing diaphragm, prior to its closure.

Prenatal Ultrasound Findings of Fetal Neoplasms

A variety of neoplasms can develop in each tetal organ. Most fetal neoplasms can be detected by careful prenatal ultrasonographic examination. Some neoplosms show specific ultrasonographic findings suggesting the differential diagnosis, but others do not. Knowledge of the presence of a neoplasm in the fetus may alter the prenatal management of a pregnancy and the mode of delivery, and facilitates immediate postnatal treatment. During the last five years, we experienced 32 cases of fetal neoplasms in a variety of organs. We describe their typical ultrasonographic findings with correlating postnatal CT, MRI, and pathologic findings.

Intrapulmonary and gastric teratoma : report of two cases

The lung and stomach are very unusual sites for teratoma. The histologic findings of intrapulmonary and gastric teratomas are not different from those arising in usual sites, such as the ovary or testis. However, preoperative diagnosis is sometimes difficult to make partly because of unusual location. We report here two cases of teratoma, one intrapulmonary teratoma and the other gastric. The intrapulmonary teratoma in our study had an endobronchial tumor growth, which rules out mediastinal teratoma. Meanwhile gastric teratomas usually present as a submucosal tumor and most cases are reported in infancy and childhood. Gastric teratoma in this study occurred in a 27-year-old man. To the best of our knowledge, this case of intrapulmonary teratoma is the eighth and the gastric teratoma is the first to be reported in Korea.