Struma Ovarii com Síndrome Pseudo-Meigs e Aumento dos Níveis de CA-125: Relato de Caso / Struma Ovarii with Pseudo-Meigs Syndrome and Increased CA-125 Levels: Case Report / Struma Ovarii con Síndrome de Pseudo-Meigs y Niveles Elevados de CA-125: Informe de Caso

Introdução: Struma ovarii é um tipo raro de tumor ovariano composto por mais de 50% de tecido tireoidiano. Representa apenas 1% dos tumores sólidos do ovário e 3% dos subtipos dermoides, com a maioria dos casos de curso benigno. Geralmente afeta mulheres entre a terceira e a quinta décadas de vida, sendo muitas vezes assintomático ou com sinais inespecíficos. A síndrome de pseudo-Meigs, caracterizada por ascite e derrame pleural, pode estar presente, dificultando o diagnóstico. Relato do caso: Mulher, 43 anos, com desconforto abdominal, dor pélvica e dispneia crônica. A tomografia identificou massa sólido-cística na pelve e ascite moderada, além de derrame pleural à direita. A ressonância magnética confirmou as alterações e, desse modo, suspeitou-se de tumor maligno ovariano. O marcador sérico tumoral CA-125 estava elevado. A paciente foi submetida a uma laparotomia exploradora que resultou em salpingo-oforectomia bilateral. A análise histopatológica do espécime confirmou o diagnóstico de struma ovarii em ovário esquerdo e teratoma cístico maduro à direita. Conclusão: Os níveis elevados de CA-125 podem ser encontrados em casos de struma ovarii, tornando-o diagnóstico diferencial nas neoplasias ovarianas malignas, especialmente quando associado à síndrome de pseudo-Meigs. Nesse sentido, embora raro, o tumor deve ser considerado uma possibilidade durante investigação clínica de massas ovarianas com apresentações atípicas. Os exames de imagem podem auxiliar, mas a confirmação é estabelecida pela análise microscópica. O tratamento consiste na ressecção cirúrgica simples, e o desaparecimento dos sintomas acontece em seguida, sendo de bom prognóstico

Introduction: Struma ovarii is a rare type of ovarian tumor composed of more than 50% of thyroid tissue. It represents only 1% of solid ovarian tumors and 3% of dermoid subtypes, with the majority of cases following a benign course. It typically affects women between the third and fifth decades of life and often remains asymptomatic or presents with nonspecific signs. pseudo-Meigs syndrome, characterized by ascites and pleural effusion, may be present, complicating the diagnosis. Case report: A 43-year-old woman presented with abdominal discomfort, pelvic pain, and chronic dyspnea. A CT scan identified a solid-cystic pelvic mass, moderate ascites, and right-sided pleural effusion. Magnetic resonance imaging (MRI) confirmed the findings, raising suspicion of malignant ovarian tumor. The serum tumor marker CA-125 was elevated. The patient underwent exploratory laparotomy, resulting in bilateral salpingo-oophorectomy. Histopathological analysis of the specimen confirmed the diagnosis of struma ovarii in the left ovary and mature cystic teratoma in the right ovary. Conclusion: Elevated CA-125 levels can be found in cases of struma ovarii, posing a differential diagnosis challenge with malignant ovarian neoplasms, especially when associated with pseudo-Meigs syndrome. Therefore, although rare, it should be considered as a possibility during clinical investigation of ovarian masses with atypical presentations. Imaging studies can assist, but confirmation is established through microscopic analysis. Treatment involves simple surgical resection, and symptom disappearance follows, with favorable prognosis.

Introducción: El struma ovarii es un tipo raro de tumor ovárico compuesto por más del 50% de tejido tiroideo. Representa solo el 1% de los tumores ováricos sólidos y el 3% de los subtipos dermoides, siendo en su mayoría benigno. Típicamente afecta a mujeres entre la tercera y quinta década de vida y a menudo permanece asintomático o presenta signos inespecíficos. El síndrome de pseudo-Meigs, caracterizado por ascitis y derrame pleural, puede estar presente, complicando el diagnóstico. Informe del caso: Una mujer de 43 años consultó por malestar abdominal, dolor pélvico y disnea crónica. La tomografía identificó una masa pélvica sólido-quística, ascitis moderada y derrame pleural en el lado derecho. La resonancia magnética confirmó los hallazgos, levantando sospechas de un tumor ovárico maligno. El marcador tumoral sérico CA-125 estaba elevado. La paciente fue sometida a una laparotomía exploratoria, resultando en salpingo-ooforectomía bilateral. El análisis histopatológico de la muestra confirmó el diagnóstico de struma ovarii en el ovario izquierdo y teratoma quístico maduro en el ovario derecho. Conclusión: Los niveles elevados de CA-125 pueden encontrarse en casos de struma ovarii, lo que lo convierte en diagnóstico diferencial con neoplasias ováricas malignas, especialmente cuando se asocia con el síndrome de pseudo-Meigs. Por lo tanto, aunque sea raro, se debe considerar como una posibilidad durante la investigación clínica de masas ováricas con presentaciones atípicas. Los estudios por imágenes pueden ayudar, pero la confirmación se establece mediante análisis microscópico. El tratamiento implica la resección quirúrgica simple y los síntomas desaparecen después, con un pronóstico favorable.

Struma Ovarii com Síndrome Pseudo-Meigs e Aumento dos Níveis de CA-125: Relato de Caso / Struma Ovarii with Pseudo-Meigs Syndrome and Increased CA-125 Levels: Case Report / Struma Ovarii com Síndrome Pseudo-Meigs e Aumento dos Níveis de CA-125: Relato de Caso

Struma ovarii is a rare type of ovarian tumor composed of more than 50% of thyroid tissue. It represents only 1% of solid ovarian tumors and 3% of dermoid subtypes, with the majority of cases following a benign course. It typically affects women between the third and fifth decades of life and often remains asymptomatic or presents with nonspecific signs. pseudo-Meigs syndrome, characterized by ascites and pleural effusion, may be present, complicating the diagnosis. Case report: A 43-year-old woman presented with abdominal discomfort, pelvic pain, and chronic dyspnea. A CT scan identified a solid-cystic pelvic mass, moderate ascites, and right-sided pleural effusion. Magnetic resonance imaging (MRI) confirmed the findings, raising suspicion of malignant ovarian tumor. The serum tumor marker CA-125 was elevated. The patient underwent exploratory laparotomy, resulting in bilateral salpingo-oophorectomy. Histopathological analysis of the specimen confirmed the diagnosis of struma ovarii in the left ovary and mature cystic teratoma in the right ovary. Conclusion: Elevated CA-125 levels can be found in cases of struma ovarii, posing a differential diagnosis challenge with malignant ovarian neoplasms, especially when associated with pseudo-Meigs syndrome. Therefore, although rare, it should be considered as a possibility during clinical investigation of ovarian masses with atypical presentations. Imaging studies can assist, but confirmation is established through microscopic analysis. Treatment involves simple surgical resection, and symptom disappearance follows, with favorable prognosis

Struma ovarii é um tipo raro de tumor ovariano composto por mais de 50% de tecido tireoidiano. Representa apenas 1% dos tumores sólidos do ovário e 3% dos subtipos dermoides, com a maioria dos casos de curso benigno. Geralmente afeta mulheres entre a terceira e a quinta décadas de vida, sendo muitas vezes assintomático ou com sinais inespecíficos. A síndrome de pseudo-Meigs, caracterizada por ascite e derrame pleural, pode estar presente, dificultando o diagnóstico. Relato do caso: Mulher, 43 anos, com desconforto abdominal, dor pélvica e dispneia crônica. A tomografia identificou massa sólido-cística na pelve e ascite moderada, além de derrame pleural à direita. A ressonância magnética confirmou as alterações e, desse modo, suspeitou-se de tumor maligno ovariano. O marcador sérico tumoral CA-125 estava elevado. A paciente foi submetida a uma laparotomia exploradora que resultou em salpingo-oforectomia bilateral. A análise histopatológica do espécime confirmou o diagnóstico de struma ovarii em ovário esquerdo e teratoma cístico maduro à direita. Conclusão: Os níveis elevados de CA-125 podem ser encontrados em casos de struma ovarii, tornando-o diagnóstico diferencial nas neoplasias ovarianas malignas, especialmente quando associado à síndrome de pseudo-Meigs. Nesse sentido, embora raro, o tumor deve ser considerado uma possibilidade durante investigação clínica de massas ovarianas com apresentações atípicas. Os exames de imagem podem auxiliar, mas a confirmação é estabelecida pela análise microscópica. O tratamento consiste na ressecção cirúrgica simples, e o desaparecimento dos sintomas acontece em seguida, sendo de bom prognóstico.

El struma ovarii es un tipo raro de tumor ovárico compuesto por más del 50% de tejido tiroideo. Representa solo el 1% de los tumores ováricos sólidos y el 3% de los subtipos dermoides, siendo en su mayoría benigno. Típicamente afecta a mujeres entre la tercera y quinta década de vida y a menudo permanece asintomático o presenta signos inespecíficos. El síndrome de pseudo-Meigs, caracterizado por ascitis y derrame pleural, puede estar presente, complicando el diagnóstico. Informe del caso: Una mujer de 43 años consultó por malestar abdominal, dolor pélvico y disnea crónica. La tomografía identificó una masa pélvica sólido-quística, ascitis moderada y derrame pleural en el lado derecho. La resonancia magnética confirmó los hallazgos, levantando sospechas de un tumor ovárico maligno. El marcador tumoral sérico CA-125 estaba elevado. La paciente fue sometida a una laparotomía exploratoria, resultando en salpingo-ooforectomía bilateral. El análisis histopatológico de la muestra confirmó el diagnóstico de struma ovarii en el ovario izquierdo y teratoma quístico maduro en el ovario derecho. Conclusión: Los niveles elevados de CA-125 pueden encontrarse en casos de struma ovarii, lo que lo convierte en diagnóstico diferencial con neoplasias ováricas malignas, especialmente cuando se asocia con el síndrome de pseudo-Meigs. Por lo tanto, aunque sea raro, se debe considerar como una posibilidad durante la investigación clínica de masas ováricas con presentaciones atípicas. Los estudios por imágenes pueden ayudar, pero la confirmación se establece mediante análisis microscópico. El tratamiento implica la resección quirúrgica simple y los síntomas desaparecen después, con un pronóstico favorable.

Struma ovarii quístico: reporte de caso y revisión de la literatura / Cystic struma ovarii: case report and literature review

El struma ovarii es un tumor bastante inusual, hallado en el 2,7 % de los teratomas de ovario. Su variedad quística es bastante rara, siendo su diagnóstico diferencial un cistoadenoma de ovario. Se caracteriza por presentar zona sólida con folículos tiroideos con coloide en su interior, y una zona quística tapizada por un epitelio plano a cuboidal, ambos con marcación para TTF1. Presentamos el caso clínico de una paciente que fue remitida a nuestro hospital por presentar una masa a la palpación vaginal. En imágenes se observa la presencia de una masa anexial derecha quística, por lo cual se le realizó una histerectomía radical con salpingooferectomía bilateral. Luego de estudios de patología y de inmunohistoquímica, se llegó a la conclusión que correspondía a un struma ovarii quístico

Struma ovarii is a rather unusual tumor, found in 2.7% of ovarian teratomas. Its cystic variety is quite rare, with its differential diagnosis being an ovarian cystadenoma. It is characterized by the presence of a solid area with thyroid follicles with colloid inside, and a cystic area lined by a flat to cuboidal epithelium, both with TTF1 marking. We describe the case report of a patient referred to our hospital for presenting a mass on vaginal examination. Imaging studies revealed the presence of a right adnexal cystic mass, for which she underwent a radical hysterectomy with bilateral salpingo-oophorectomy. After pathology and immunohistochemistry studies, it was concluded that it corresponded to a cystic struma ovarii

Struma ovarii-associated pseudo-Meigs−syndrome with concomitant abdominopelvic tuberculosis masquerading as ovarian malignancy / Philippine Journal of Obstetrics and Gynecology

@#Pseudo-Meigs' syndrome (PMS) is a rare disease characterized by the triad of (1) an ovarian neoplasm, other than a fibroma or thecoma, (2) ascites, and (3) pleural effusion. Tumors such as struma ovarii, mucinous and serous cystadenomas, and germ cell tumors have been linked with the condition. Due to its clinical features combined with the elevation of serum cancer antigen 125 (CA-125) levels, it is often mistaken and treated as a malignant ovarian tumor. Ascites or pleural effusion could be massive leading to various life-threatening complications. Despite its presentation, this entity has an excellent prognosis when surgical excision of the tumor is performed. This article presents an unusual case of a 41-year-old gravida 10 para 10 (10-0-0-9) who was diagnosed with a case of struma ovarii associated PMS with concomitant abdominopelvic tuberculosis and elevated CA-125 resembling an ovarian malignancy.

Estruma ovárico asociado con enfermedad de graves / Struma ovarii associated with Graves' disease

El hipertiroidismo se define como la producción excesiva de hormonas tiroideas a partir de tejido tiroideo maduro eutópico o ectópico. La prevalencia general de hipertiroidismo es 1.2%, y la causa más frecuente es la enfermedad de Graves. El estruma ovárico representa el 1% de todos los tumores ováricos y es una causa infrecuente de hipertiroidismo ectópico. Su comportamiento es benigno en más del 90% de los casos; usualmente asintomáticos, sólo el 8% se presentan con tirotoxicosis, y es infrecuente su asociación con enfermedad de Graves. Se comunica el caso de una paciente con esta infrecuente asociación.

Hyperthyroidism is defined as an excessive production of thyroid hormones by eutopic or ectopic mature thyroid tissue. The overall prevalence of hyperthyroidism is 1.2% and the most common cause is Graves' disease. Struma ovarii represents 1% of all ovarian tumors and is an uncommon cause of ectopic hyperthyroidism. It is benign in >90% of the cases; usually asymptomatic, and only 8% are presented with thyrotoxicosis, being rare its association with Graves' disease. We report the case of a patient with this association.

Estruma ovárico / Struma ovarii

Introducción: 20 por ciento de los tumores ováricos son de células germinales; y, aunque muchos no pueden ser clasificados por citología, los teratomas sí, y entre estos, el estruma formado por tejido tiroideo. Reconocerlo, ayuda al patólogo en el manejo de la biopsia intraoperatoria y define el proceder clínico quirúrgico. Presentación del caso: mujer de 29 años atendida en urgencias por dolor en región inguinal derecha. Al examinarla se constató tumoración de alrededor de 8 cm en región pélvica derecha, dolorosa al palparla. En el tacto vaginal se percibió masa tumoral gonadal de consistencia firme. El ultrasonido arrojó en el ovario derecho una imagen ecolúcida de paredes gruesas con imágenes hipoecogénicas en su interior, con bordes irregulares de 67 x 97 mm, e imagen ecogénica que ocupa el 20 % de la lesión, con pobre patrón vascular. Conclusiones: los datos clínicos, y los exámenes imagenológicos y citológicos, permiten diagnosticar un estruma ovárico benigno(AU)

Introduction: twenty percent of ovarian tumors are of germinal cells and although many cannot be classified through cytology, teratomes can, and among them, the struma formed by the thyroid tissue. Recognizing this fact helps the pathologist to manage intraoperative biopsy and to define the surgical clinical procedure. Case presentation: a 29 years-old woman seen in the emergency service to relieve pain in her right inguinal region. On the physical exam, an 8 cm tumor was found in the right pelvic region, causing pain when palpating it. The vaginal exam revealed solid gonadal tumor mass. The ultrasound test showed in the right overy an echolucent image of thick walls with hypoechogenic images inside with 67 x 97 mm irregular contours and echogenic image covering 20 percent of lesion, with poor vascular pattern. Conclusions: clinical data and imaging and cytological exams allow diagnosing benign struma ovarii(AU)

Incidental Detection of Struma Ovarii on the Whole Body Scan in a Differentiated Thyroid Cancer Patient

Post-therapeutic whole body scan (RxWBS) after radioactive iodine (RAI) remnant ablation (RRA) is useful for detect recurrent or metastatic foci of differentiated thyroid carcinoma (DTC) after total thyroidectomy. However, there is rare possibility of false positive iodine uptake in WBS. Here, we report a case of a 72-year-old woman, who underwent RRA after total thyroidectomy due to follicular variant papillary thyroid carcinoma. There is an abnormal iodine uptake in RxWBS in pelvic cavity. Additional single photon emission computed tomography (SPECT)-computed tomography (CT) imaging showed an intensive I-131 avid mass in left ovary. There was a multiple calcified mass in left ovary and enhancing wall thickening in left ureter with hydronephrosis in contrast enhanced CT. She underwent hysterectomy, oophorectomy, left ureterectomy and nephrectomy and diagnosed as mature cystic teratoma with thyroid tissues and ureter cancer. Struma ovarii should be considered if there was abnormal RAI uptake in pelvic cavity. I-131 SPECT-CT is useful for differential diagnosis of abnormal iodine uptakes in WBS.

Incidental Detection of Struma Ovarii on the Whole Body Scan in a Differentiated Thyroid Cancer Patient

Post-therapeutic whole body scan (RxWBS) after radioactive iodine (RAI) remnant ablation (RRA) is useful for detect recurrent or metastatic foci of differentiated thyroid carcinoma (DTC) after total thyroidectomy. However, there is rare possibility of false positive iodine uptake in WBS. Here, we report a case of a 72-year-old woman, who underwent RRA after total thyroidectomy due to follicular variant papillary thyroid carcinoma. There is an abnormal iodine uptake in RxWBS in pelvic cavity. Additional single photon emission computed tomography (SPECT)-computed tomography (CT) imaging showed an intensive I-131 avid mass in left ovary. There was a multiple calcified mass in left ovary and enhancing wall thickening in left ureter with hydronephrosis in contrast enhanced CT. She underwent hysterectomy, oophorectomy, left ureterectomy and nephrectomy and diagnosed as mature cystic teratoma with thyroid tissues and ureter cancer. Struma ovarii should be considered if there was abnormal RAI uptake in pelvic cavity. I-131 SPECT-CT is useful for differential diagnosis of abnormal iodine uptakes in WBS.

Spinal Metastasis from Struma Ovarii: Case Report and Review of the Literature

Struma ovarii is a rare tumor that is defined as an ovarian teratoma with a thyroid tissue component exceeding 50%. Most of these tumors are benign, with malignant struma ovarii occurring in <1% of patients. Here, we describe the case of a 49-year-old female patient with malignant struma ovarii who developed thoracic spine metastasis. She had undergone an oophorectomy and was diagnosed with struma ovarii 10 years previously. She had remained recurrence-free thereafter. At 49 years of age, she developed low back pain and was admitted to our hospital for evaluation of a spinal tumor at the Th7 level. An emergency bone biopsy led to a diagnosis of metastasis from malignant struma ovarii. External beam radiotherapy inhibited further tumor growth and there was no resulting muscle weakness. This is the first report of spinal metastasis occurring 10 years after resection of struma ovarii, indicating the need for long-term follow-up.

Follicular Proliferative Lesion Arising in Struma Ovarii

Malignant struma ovarii is extremely rare and difficult to diagnose histologically, particularly in cases of follicular carcinoma. This case study is intended to describe three cases of follicular proliferative lesion arising in struma ovarii that we experienced. The first case was clearly malignant given the clinical picture of multiple recurrences, but there was little histological evidence of malignancy. Our second case featured architectural and cellular atypia and necrosis and was diagnosed as malignant despite the absence of vascular and stromal invasion. Our third case exhibited solid microfollicular proliferation without any definite evidence of malignancy (even the molecular data was negative); however, we could not completely exclude malignant potential after conducting a literature review. In cases such as our third case, it has been previously suggested that a diagnostic term recognizing the low-grade malignant potential, such as "proliferative stromal ovarii" or "follicular proliferative lesion arising in the stromal ovarii" would be appropriate.

Late Bone Metastasis of Histologically Bland Struma Ovarii: The Unpredictability of Its Biologic Behavior

No abstract available.

Sonographic and Pathologic Features of Struma Ovarii / 中国医学科学院学报

<p><b>OBJECTIVE</b>To investigate the sonographic features of struma ovarii and its corresponding histopathologic findings.</p><p><b>METHODS</b>The sonographic and histopathological features of 72 patients with histopathologically comfirmed struma ovarii who were treated in Peking Union Medical College Hospital from January 2005 to December 2014 were retrospectively reviewed.</p><p><b>RESULTS</b>Of these 72 patients,71 had benign struma ovarii(73 lesions)and one patient had malignant struma ovarii(1 lesion). On ultrasonography,all the 73 benign lesions had distinct margin,45(61.6%)had multilocular cystic or cystic-solid mass,49(67.1%)had irregular shape,and 28(38.4%)had nodular solid protrusions in the cystic areas. On the color Doppler flow imaging,36(49.3%)lesions had blood flow signals. The ultrasonographic features of the malignant struma ovarii lesion were multilocular cystic-solid mass with several nodular solid protrusions in the cysic areas;on the color Doppler flow imaging,blood flow signals were visible within septa and solid areas.</p><p><b>CONCLUSIONS</b>The sonographic features of struma ovarii are diverse. If ultrasonography reveals multilocular cystic or cystic-solid mass with distinct margin and isoechoic or hyperechoic nodular solid protrusions in the cystic areas with visible blood flow signals,the diagnosis of struma ovarii should be considered.</p>

Struma ovarii: management and follow-up of a rare ovarian tumour

<p><b>INTRODUCTION</b>Struma ovarii represents about 1.0% of all ovarian tumours. While management involves surgery, there is a paucity of data regarding the extent and approach of surgery, and postoperative management. This study aimed to delineate the management of struma ovarii, its associated complications, and postoperative follow-up and investigations.</p><p><b>METHODS</b>We retrospectively reviewed cases of benign struma ovarii treated at KK Women's and Children's Hospital, Singapore, between January 2000 and May 2011.</p><p><b>RESULTS</b>A total of 68 patients underwent surgical removal of ovarian cyst or mass (24 cystectomy, 20 salpingo-oopherectomy and 24 total hysterectomy and bilateral salpingo-oopherectomy). Of the 68 surgeries, 39 (57.4%) included intraoperative frozen section sampling or procedures for staging of ovarian malignancy. The majority (73.5%) of surgeries were laparotomies. Histology revealed benign struma ovarii in all (98.5%) but one patient. Only 7 (10.3%) patients had postoperative complications - 3 wound-related, 2 thyroid-related, 1 incisional hernia and 1 nonspecific. The mean length of hospital stay was 4.2 days. During follow-up, 45 (66.2%) patients required no additional investigations. The most common investigation done was ultrasonography (n = 18, 26.5%). While no recurrences were diagnosed histologically, two patients were subsequently found to have complex/dermoid ovarian cysts on the ipsilateral side of the previous struma ovarii on ultrasonography.</p><p><b>CONCLUSION</b>Simple surgery is recommended for patients with struma ovarii, especially if they have fertility potential. Laparoscopic surgery is the recommended approach due to its shorter recovery time and lower morbidity. Most patients do not require extended periods of follow-up or postoperative investigations.</p>

Risk factors for malignant transformation of mature cystic teratoma

OBJECTIVE: The aim of this study was to investigate the preoperative characteristics of benign mature cystic teratoma (MCT) and struma ovarii and their risk factors associated malignancies, and determine the appropriate treatment options for these tumors. METHODS: This was a retrospective study on 248 patients who were pathologically diagnosed with ovarian MCT, struma ovarii, or malignant transformations of these tumors at Inje University Haeundae Paik Hospital from March 2010 to January 2015. Routinely evaluated results of adnexal masses before surgery were compared. RESULTS: A total of six patients (2.4%) were confirmed to have malignant tumors. Of the struma ovarii patients, two out of five patients (40%) were confirmed to have malignancy. The mean age at the diagnosis of patients with malignant transformation of teratomas was 43.0 years (range, 27 to 67 years), which was higher than that of patients with benign teratomas (36.5 years). The mean diameter of the tumor before surgery in the malignant tumor group was 11.4 cm and larger than 6.5 cm of benign group (P=0.003). The mean CA-125 level in the malignant tumor group was higher than that in the benign tumor group (P=0.01). CONCLUSION: Risk factors for malignant transformation of MCT include elevated CA-125 levels, older age, large tumor masses, and postmenopausal status.

Estruma ovarii maligno / Malignant struma ovarii

The Malignant Struma ovarii (SO) is a thyroid carcinoma generated in a mature teratoma, constitutes 0.8-3percent of ovarian tumors. Then, two cases will be reviewed. Case 1: 46 year old woman with no known morbid consulted for right iliac fossa pain requiring exploratory laparotomy with findings of an ovarian tumor, the biopsy reported mature ovarian teratoma SO type microfocus papillary thyroid carcinoma. Case 2: 59 year old female with a history of dyslipidemia and knee osteoarthritis in controls in gynecology since 2010 on the right adnexal mass of cystic type of 5x3 cm. The study showed only free fluid dissemination ovarian, oofectomía bilateral was performed and biopsy showed minimally invasive follicular carcinoma (2.8 cm) developed by SO, serosa without invasion of the ovary. Is derived of endocrinology and the study showed: thyroid stimulating hormone (TSH) 3.3 uIU/ ml; Peroxidase antibody (anti-TPO) and thyroglobulin antibody (antiTG) negative. Ultrasonography exhibited thyroid nodule of 0.8 x 0.6 cm, hipovascularizado with normal thyroid cintigraphy and cytology negative for neoplastic cells in fine needle aspiration (FNA). Discussion: It’s a rare condition, which requires a multidisciplinary approach to treatment...

Struma ovarii: presentación de caso y revisión de la literatura / Struma ovarii: Case presentation and literature review

Objetivo: presentar un caso de teratoma especializado del ovario y hacer una revisión de la literatura publicada en relación con la epidemiología y las características diagnósticas con énfasis en el diagnóstico histopatológico.Materiales y métodos: se presenta el caso de una paciente de 50 años de edad, con masa pélvica, que consulta a la ESE Clínica Maternidad Rafael Calvo, centro de referencia del departamento de Bolívar, institución de segundo nivel de complejidad, que atiende a pacientes de estratos socioeconómicos bajos y población rural. La ecografía y la tomografía axial computarizada muestran teratoma ovárico bilateral. Se realizó histerectomía más salpingooferectomía bilateral. El examen histopatológico del tumor derecho mostró múltiples estructuras foliculares tiroideas, con contenido coloide; se diagnostica struma ovarii. Se realizó una búsqueda de la literatura en Medline vía PubMed de 1966 a la fecha; además se buscó en Hinari, Imbiomed y Ebsco usando los términos: “Struma Ovarii”, “Ovario”, “Estruma”, “Teratoma monodérmico”, “Teratoma bilateral”, publicados en inglés o español que trataran sobre la epidemiología y el diagnóstico histopatológico.Resultados: se encontraron 450 artículos publicados, de los cuales se revisó un total de 27 relacionados con struma ovarii y teratomas bilaterales, de estos se seleccionaron 11 que correspondieron a reportes de casos y revisiones de tema.Conclusiones: el struma ovarii es una variante especializada de los teratomas ováricos, los signos y síntomas de hipertiroidismo y la aparición asociada de masa pélvica pueden sugerir el diagnóstico. El ultrasonido y la tomografía axial pueden ser útiles en el diagnóstico diferencial. Los criterios histopatológicos juegan un papel crucial en el diagnóstico definitivo.

Objective: To present a case of specialized ovarian teratoma and a review of the published literature on the epidemiology and the diagnostic characteristics of this tumor, emphasizing the histopathological diagnosis.Materials and methods: A 50 year-old female patient who was seen because a pelvic mass at the ESE Clínica Maternidad Rafael Calvo, level II referral center in the Department of Bolívar that serves patients of the rural areas and low socioeconomic levels. Ultrasound and computerized axial tomography revealed bilateral ovarian teratomas. Hysterectomy plus bilateral salpyngo-oophorectomy was performed. The histopathology of the right-sided tumor showed multiple follicular thyroid structures with colloid content, resulting in a diagnosis of Struma Ovarii. A search of the literature was conducted in Medline via Pubmend, from 1996 to this date. Additional searches were conducted in Hinari, Imbiomed, and Ebsco using the terms “Struma Ovarii”, “Ovary”, “Struma”, “Monodermal teratoma”, “Bilateral teratoma”, published in English or Spanish and dealing with the epidemiology and the histopathological diagnosis.Results: Overall, 450 published articles were found and, of those, 27 relating to struma ovarii and bilateral teratomas were reviewed. Of those, 11 case reports and reviews of the subject were selected.Conclusions: Struma ovarii is a specialized variant of ovarian teratomas, and signs and symptoms such as hyperthyroidism and the associated presence of a pelvic mass may suggest the diagnosis. Diagnostic tests include ultrasound and axial tomography, which may help with differentiation and diagnosis. Histopathological criteria play a crucial role in the final diagnosis. Histopathological criteria play a crucial role in the final diagnosis.

Struma Ovarii: A Case of Struma Ovarii and Literature Review

Struma ovarii is a rare, monodermal and highly specialized teratoma, composed entirely or predominantly (>50%) of thyroid tissue. Presenting symptoms are not specific. Despite containing thyroid tissue, only 5% of struma ovarii have features of hyperthyroidism. Therefore, preoperative diagnosis of struma ovarii is difficult. Recently, the authors experienced a case of struma ovarii found in a young woman who presented with known pelvic mass and dysmenorrhea. A transabdominal ultrasonography and computed tomography detected a 16-cm sized multiloculated mass in pelvic cavity. She underwent laparoscopic unilateral ovarian wedge resection. The final histopathologic diagnosis was struma ovarii of the mature cystic teratoma. Therefore, we report this rare case with a brief review of the literature.

Struma ovarii con un foco de micro-carcinoma papilar variante folicular de tiroides: reporte de caso y revisión de la literatura / Struma ovarii with follicular variant of papillary thyroid carcinoma: report of one case

Struma ovarii is an ovarian teratoma composed mainly of thyroid tissue, which can occasionally develop a malignant thyroid tumor. We report a 61 years old female consulting for a metrorrhagia in whom an ovarian cyst was discovered. The patient was subjected to a hysterectomy and bilateral oophorectomy. The pathological study of the surgical piece revealed a focus of papillary thyroid carcinoma, follicular variety in a right struma ovarii. Three months after surgery, an abdominal CAT scan did not show any abnormality.

Strumal carcinoid tumour of the ovary presenting with severe constipation

A 30-year-old single woman presented with an incidental finding of abdominal mass associated with severe constipation. Her cancer antigen-25, alpha-foetoprotein and beta human chorionic gonadotropin levels were normal, but her carcinoembryonic antigen level was raised at 7.6 g/dL. Magnetic resonance imaging showed a 11.4 cm × 8.6 cm × 9.5 cm right ovarian mass with solid and cystic areas. An open right cystectomy was performed. Intraoperatively, she was found to have hirsutism and clitoromegaly. During the operation, there was a right ovarian 10-cm mass, with faecal loading from the caecum to the transverse colon. The uterus, fallopian tubes, left ovary and intraperitoneal survey were normal. Final histology confirmed strumal carcinoid tumour Stage 1A. This case report shows that a strumal carcinoid tumour can present with longstanding constipation as a patient's main complaint and may also be associated with hirsutism.