Quiste hidatídico cervical primario / Primary cervical hydatid cyst

RESUMEN La hidatidosis cervical es una enfermedad poco frecuente aun en áreas endémicas. Suele presentarse como una lesión quística indolora de lenta evolución. Se presenta un caso clínico de una paciente femenina de 19 años con una lesión quística en el compartimento cervical central, inicialmente interpretada como un quiste tirogloso. El diagnóstico debe ser sospechado ante epidemiología compatible, el método de imágenes de elección es la ecografía. En localizaciones extrahepáticas los métodos serológicos tienen baja sensibilidad. El tratamiento de elección es la cirugía, realizando tratamiento perioperatorio con albendazol. Debe manipularse el quiste con cuidado para evitar su rotura y el derrame de contenido líquido, por riesgo de reacción anafiláctica, recurrencia e hidatidosis múltiple. En pacientes con alto riesgo quirúrgico puede optarse por realizar tratamiento médico con albendazol.

ABSTRACT Cervical echinococcosis is a rare disease, even in endemic areas. The lesions usually present as painless slow-growing cystic lesion. We report the case of a 19-year-old female patient with a cystic lesion in the central cervical region that was initially interpreted as a thyroglossal duct cyst. The diagnosis should be suspected when the epidemiology is consistent, and ultrasound is the imaging method of choice. The sensitivity of serologic tests is low in extrahepatic locations. Surgery is the treatment of choice and the administration of albendalzole before surgery is indicated. The cyst must be handled with care to avoid rupture and leakage of cyst contents, which can cause anaphylaxis, recurrence and multiple echinococcosis. In patients with high surgical risk, medical treatment alone may be the option.

Enfermedad hidatídica en un paciente con vólvulo de colon transverso estrangulado / Hydatid Disease in a Patient with Strangulated Volvulus of the Transverse Colon

Introducción: La hidatidosis es una zoonosis de distribución mundial con alta incidencia en Argentina, Uruguay, Australia, Grecia y Portugal. Dada la escasa sintomatología que habitualmente produce la enfermedad hidatídica, su diagnóstico se realiza de manera casual por estudios radiológicos fortuitos o durante una laparotomía por otras causas. Por otra parte, la volvulación del colon transverso es un evento raro en la población mundial. Objetivo: Analizar, basados en la literatura relacionada, un caso portador de ambas entidades simultáneamente. Caso clínico: Paciente de sexo masculino de 64 años con condiciones de vida deficientes, que acude a consulta por presentar cuadro clínico de oclusión intestinal mecánica. Los estudios preoperatorios muestran un quiste hidatídico en pulmón derecho. En el acto operatorio se encuentra otro quiste hidatídico en el lóbulo izquierdo del hígado y el colon transverso volvulado como causa de la oclusión. Conclusiones: Pocas veces coinciden 2 condiciones médicas infrecuentes en un mismo paciente. Ambas entidades suponen un reto terapéutico cuando se abordan en situaciones de urgencia como en el reporte. En zonas endémicas debe tenerse una alta sospecha clínica con el fin de obtener un diagnóstico adecuado y poder ofrecer un manejo oportuno. La cirugía, en la mayor proporción de pacientes, es prioritaria(AU)

Introduction: Hydatidosis is a worldwide distribution zoonosis with high incidence in Argentina, Uruguay, Australia, Greece and Portugal. Given the scarce symptoms usually produced by hydatid disease, its diagnosis is made inadvertently by fortuitous radiological studies or during laparotomy for other causes. On the other hand, transverse colon volvulus is a rare event in the world population. Objective: To analyze, based on the related literature, the case of a patient with both entities simultaneously. Clinical case: A 64-year-old male patient with poor living conditions came to the medical office due to a clinical picture of mechanical intestinal obstruction. Preoperative studies show a hydatid cyst in the right lung. During the operative act, another hydatid cyst is found in the left lobe of the liver, apart from the transverse colon volvulus due to the occlusion. Conclusions: Rarely do two infrequent medical conditions coincide in the same patient. Both entities pose a therapeutic challenge when they are approached in emergency situations, as they have been reported here. In endemic areas, a high clinical suspicion must be considered, in order to obtain an adequate diagnosis and be able to offer timely management. Surgery, in the largest proportion of patients, is a priority(AU)

Quiste hidático primario músculo-esquelético: revisión de la literatura a propósito de un caso / Primary hydatid cyst of skeletal muscle: a literature review based on a case / Cisto hidático primário músculo esquelético: revisão da literatura a propósito de um caso

Resumen: Introducción: la equinococosis quística músculo-esquelética es poco frecuente, pudiendo determinar retrasos diagnósticos y errores terapéuticos. Reporte de caso: presentamos el caso de un paciente con un quiste hidático primario único a nivel de la región femoral posterior derecha, infectado. Discusión: se realizó una revisión en las bases de datos PubMed y LILACS sobre el diagnóstico y manejo terapéutico de los quistes hidáticos músculo-esqueléticos primarios. Conclusiones: la equinococosis quística músculo-esquelética debe ser tenida en cuenta dentro de los diagnósticos diferenciales de tumoraciones de partes blandas en pacientes provenientes de zonas endémicas. La tomografía computada y/o resonancia magnética cumplen un rol diagnóstico y de planificación terapéutica. El tratamiento es quirúrgico, a medida del paciente y del quiste, en función de su topografía, tamaño y fundamentalmente relaciones vasculo nerviosas y musculares. Otros factores a tener en cuenta son las futuras secuelas funcionales y resultados estéticos.

Summary: Introduction: musculoskeletal cystic echinococcosis is rather an unusual condition, what may result in delayed diagnosis and therapeutic mistakes. Case report: the study presents the case of a patient with a single primary hydatid cyst in the right posterior femoral region, which is infected. Discussion: a review of PubMed and LILACS was performed to learn about diagnosis and therapeutic handling of the primary musculoskeletal hydatid cysts. Conclusions: musculoskeletal cystic echinococcosis needs to be considered among differential diagnosis of soft tissues tumors in patients coming from endemic areas. A CT scan and RMI play an important role in diagnosis and the planning of treatment. Treatment involves surgery that must be adapted to the patient and the cyst, considering its topography and size, and in particular in view of muscular and nervous vessels relationship. Other factors to bear in mind are renal sequels and esthetic aspects.

Resumo: Introdução: a equinococose cística musculoesquelética é rara e pode determinar atrasos em seu diagnóstico e erros terapêuticos. Relato do caso: apresentamos o caso de uma paciente com cisto hidrático primário único ao nível da região femoral posterior direita, infectado. Discussão: foi realizada uma revisão nas bases de dados PubMed e LILACS sobre o diagnóstico e manejo terapêutico dos cistos hidráticos osteomusculares primários. Conclusões: a equinococose cística musculoesquelética deve ser considerada no diagnóstico diferencial de tumores de partes moles em pacientes de áreas endêmicas. A tomografia computadorizada e / ou a ressonância magnética desempenham um papel no planejamento diagnóstico e terapêutico. O tratamento é cirúrgico, adaptado ao paciente e ao cisto, dependendo de sua topografia, tamanho e, fundamentalmente, das relações vascular-nervosas e musculares. Outros fatores a serem considerados são as sequelas funcionais futuras e os resultados estéticos.

Intramuscular hydatid cyst in the lower extremity: report of three cases

Abstract Hydatid cysts are rarely detected in the muscle tissue, even in endemic countries. Echinococcus granulosis is the most common causative agent, whereas Echinococcus alveolaris is rare. Three patients, two females and one male, with primary echinococcosis of the skeletal muscles are described in this report. Mean patient age was 33.3 ± 14.6 years. The disease occurred as soft tissue masses in all three patients, and no hydatid foci were detected elsewhere in the patients. Skeletal muscle echinococcosis should be considered in the differential diagnosis of limb masses, especially in endemic countries.

Unusual hydatid cysts: cardiac and pelvic-ilio femoral hydatid cyst case reports and literature review

Abstract Introduction: Hydatid cyst is a parasitic disease caused by Echinococcus granulosus, most commonly seen in the liver and lungs. The hydatid cyst is rarely seen in the heart and iliofemoral region, representing less than 2% of all cases. In this article, we report our cases of hydatid cysts in unusual loci. Methods: Between 2015 and 2018, 6 rare cases of hydatid cysts were diagnosed at the Cardiovascular Surgery Department of Harran University. Four of these patients had cardiac localization and two patients had their cysts located in the iliofemoral region, extending to the pelvic zone. All patients were female. Three patients had no other organ involvement. One patient with cardiac hydatid cyst underwent normothermic cardiopulmonary bypass + total pericystectomy + Cooley-like aneurysmectomy. Total pericystectomy was performed in three other patients with intrathoracic locus by normothermic cardiopulmonary bypass. Two patients who were referred to our clinic with palpable iliofemoral mass were evaluated with appropriate imaging methods and diagnosed accordingly. Multiple iliofemoral cysts were managed with pericystectomy and drainage by a single incision made over the inguinal ligament. Conclusion: Hydatid cyst disease can develop in cardiac chambers and inguinal region with or without hepatic or pneumatic involvement. Normothermic cardiopulmonary bypass can be safely used in patients with cardiac hydatid cysts, and capitonnage similar to ventricular aneurysm repair in patients with a widely involved cystic lesion can be very useful for the protection of ventricular functions.

Quiste hidatídico en ventrículo derecho / Right ventricular hydatid cyst

A 20-year-old woman, without known pre-existent conditions presented with a history of dyspnea on exertion, and palpitations for 6 months. Vital signs, as well as cardiac and pulmonary examinations were normal. Routine blood tests were normal. The ECG showed nonspecific ST-T changes. The echocardiogram showed a left ventricle of normal size and function. A cystic image was shown in relation to the right ventricle, with displacement of the interventricular septum. These findings were confirmed on computed tomography. Additional cystic images on the liver or lungs were ruled out. On surgery, a cardiac hydatic cyst adhered to the pericardium next to the right ventricle was found. Puncture, drainage of the mass and surgical removal of cystic membranes were performed. The clinical course was uneventful. A four year follow up revealed no recurrence of the cyst.

Descripción clínico-radiológica de un angiosarcoma cardiaco con metástasis cerebral que simula un quiste hidatídico / A radiological and clinical description of metastatic angiosarcoma simulating a hydatid cyst

RESUMEN Los angiosarcomas son sarcomas malignos que se originan en las células endoteliales vasculares. Su diagnóstico diferencial es muy amplio debido a su parecido con otras enfermedades, como las parasitarias, y usualmente es un diagnóstico por exclusión. La neurocisticercosis y la hidatidosis cerebral son parasitosis intestinales que pueden comprometer el sistema nervioso central y tienen mayor incidencia en los países suramericanos. El diagnóstico se establece a partir del perfil epidemiológico, el estudio parasitológico, la apariencia radiológica de las lesiones y el estudio de histopatología del espécimen. Se presenta el caso de una adolescente con factores de riesgo para parasitosis y neuroimágenes sugestivas de hidatidosis cerebral, cuyo diagnóstico definitivo fue angiosarcoma cardiaco metastásico.

ABSTRACT Angiosarcoma is the most malignant sarcoma originating in endothelial vascular cells. It has a wide differential diagnosis due to its similarities with other entities, such as parasitic diseases. More often, angiosarcoma is diagnosed by exclusion. Neurocysticercosis and hydatid disease, or echinococcosis, are parasitic infections that may involve the central nervous system and their incidence is higher in South American countries. Diagnosis is established based on the epidemiological profile, the parasitological examination, the radiological appearance of the lesions, and the histopathology analysis of specimens. We present the case of a female adolescent with parasitosis risk factors whose neuroimages suggested cerebral hydatid cysts and who was finally diagnosed with cardiac metastatic angiosarcoma.

Hidatidosis cardíaca: tratamiento quirúrgico para recidiva de quiste hidatídico en ventrículo izquierdo / Cardiac hydatid disease: surgical treatment for recurrent hydatid cyst in the left ventricle

INTRODUCCIÓN: El quiste hidatídico cardiaco es una patología infrecuente, producida por la llegada de Equinococcus granulosus a la circulación coronaria. MATERIALES Y MÉTODO: Hombre de 52 años, con antecedente de quiste hidatídico cardiaco operado hace 27 años, insuficiencia cardiaca y enfermedad coronaria. Presentó disnea progresiva de un año de evolución. Estudio con radiografía de tórax, ecocardiografía y tomografía computada que mostró imagen compatible con hidatidosis cardiaca recidivada en el ventrículo izquierdo, arteria pulmonar e hilio pulmonar izquierdo, rodeando por completo el tronco coronario común izquierdo y parte proximal de la arteria descendente anterior. Se constató fracción de eyección de ventrículo izquierdo aproximadamente de 30%. No se encontró evidencia de enfermedad hidatídica extracardiaca. Se decidió tratamiento quirúrgico. Se abordó por esternotomía media y en circulación extracorpórea, se observaron lesiones compatibles con quiste hidatídico multiloculado de ubicación miocárdica en ventrículo izquierdo, con incontables vesículas hijas. Se realizó quistectomía más periquistectomía hidatídica sin incidentes. Presentó hemorragia postoperatoria por lo que requirió reintervención quirúrgica precoz. Evolucionó favorablemente y fue dado de alta sin complicaciones. A seis años de seguimiento se encuentra asintomático, sin evidencia tomográfica y ecocardiográfica de recidiva. DISCUSIÓN: La hidatidosis es una zoonosis endémica en Chile. La ubicación cardiaca es infrecuente, correspondiendo al 0,5 al 2% de los casos. Suele asociarse a la presencia de quistes extracardiacos. La ubicación más frecuente es la pared libre del ventrículo izquierdo a nivel intramiocárdico. El tratamiento médico suele ser insuficiente, por lo que se recomienda la resección quirúrgica.

INTRODUCTION: Cardiac hydatid cyst is a rare disease caused by Echinococcus granulosus arrival of the coronary circulation. MATERIAL AND METHOD: 52 years old man with a history of cardiac hydatid cyst operated 27 years ago, heart failure and coronary artery disease. He presented with a history of one year of progressive dyspnoea. Study with chest radiography, echocardiography and computed tomography showed an image compatible with cardiac hydatid disease recurrence in relation to the left ventricle, pulmonary artery and anterior descending artery. Ejection fraction of the left ventricle was approximately 30%. No evidence of extracardiac hydatid disease was found and surgical treatment was decided. Addressed by median sternotomy and extracorporeal circulation, a multiloculated myocardial hydatid cyst, with hundreds of daughter vesicles of different size was found. Pericystectomy of the hydatid cyst was performed without incident. The patient presented postoperative bleeding which required early reoperation. Posteriorly, was discharged without complications. DISCUSSION: Hydatid disease is an endemic zoonosis in Chile. Heart location is infrecuent and correspond to 0.5 to 2% of the cases, usually associated with the presence of extracardiac cysts. The most common location is the free wall of the left ventricle at intramyocardial level. Medical treatment is often inadequate and surgical resection is recommended.

Intracoronary hydatid cyst resulted in coronary artery disease in a young patient

Abstract Among all cystic echinococcosis cases, only 0.5%-2% exhibit a cardiac involvement. Only 10% of these become symptomatic. Considering the long time interval between the start of infestation and symptoms to occur, it is hard to diagnose cystic echinococcosis. When detected, even if it is asymptomatic, intramyocardial hydatid cyst requires surgical intervention due to risks of spontaneous rupture and anaphylaxis. In literature, no case of hydatid cyst located in the coronary arterial wall has been reported. Twenty-two-year-old male patient with previous history of pulmonary cystic echinococcosis was referred to us with typical symptoms of coronary artery disease. Coronary cineangiography revealed proximal left diagonal artery (LAD) occlusion. Pre-operative transthoracic echocardiography of the patient planned to undergo coronary artery bypass grafting unveiled an intracoronary calcified cystic mass. In operation, the calcified cystic mass with well-defined borders and size of 2x2 cm located within wall of proximal segment of the LAD artery was excised and double bypass with left internal thoracic artery (LITA) and great saphenous vein grafts to the LAD and first diagonal arteries, respectively, was done. Pathological analysis of the mass revealed it to be an inactive calcified hydatid cyst. Echinococcal IgG-ELISA test was positive. 12-week oral albendazole treatment (2x400 mg/day) was launched postoperatively and the patient was discharged on 7th postoperative day.

Esplenectomía laparoscópica por quiste hidatídico primario de bazo / Laparoscopic splenectomy by primary hydatid cyst of the spleen

Objetivo: Describir el caso clínico de un paciente con quiste esplénico hidatídico de un año de evolución resuelto por vía laparoscópica. Materiales y Métodos: Mujer de 36 años con dolor en hipocondrio izquierdo por 1 año de evolución. El estudio topográfico objetivó lesión esplénica quística de 67 mm. Se realizó esplenectomía laparoscópica sin incidentes. Resultado: Evolución posoperatoria favorable. Histología compatible con hidatidosis esplénica. Discusión: La incidencia de hidatidosis esplénica es baja, incluso en áreas endémicas, aproximándose al 1-2%. La cirugía es la estrategia terapéutica de elección dado los riesgos de ruptura, sin embargo, no hay consenso respecto a la técnica de elección. Conclusión: La esplenectomía laparoscópica es una herramienta segura y avalada en la literatura.

Objective: Describe a case report of a hydatid splenic cyst of one year of evolution, treated by laparoscopy. Materials and Methods: A 36-year-old woman with left upper quadrant pain for 1 year. The topographic study showed a 67mm splenic cystic lesion. Laparoscopic splenectomy was performed without incident. Result: Favorable post-operative evolution. Histology compatible with splenic hydatidosis. Discussion: The incidence of splenic hydatidosis is low, even in endemic areas, approaching 1-2%. Surgery is the therapeutic strategy of choice, given the risks of rupture. However, there is no consensus regarding the technique. Conclusion: Laparoscopic splenectomy is a safe procedure supported by the literature.

Application of a single-chain fragment variable (scFv) antibody for the confirmatory diagnosis of hydatid disease in non-endemic areas

Background: Hydatid disease is a serious parasitic disease threatening public health. Because of its rarity in non-endemic coastal areas, determining the nature and origin of a chronic, enlarged liver cystic mass is challenging in these regions. Under these circumstances, physicians need a confirmatory diagnostic tool beyond immunological and radiological examinations. This study investigated a novel human single-chain fragment variable (scFv) antibody for the confirmative diagnosis of 18 atypical hydatid disease cases in non-endemic coastal areas. Results: A scFv antibody against cystic echinococcosis was produced by genetic engineering and then applied to the immunohistochemical diagnosis of 18 cases of cystic echinococcosis presented in non-endemic coastal areas. The diagnosis of these cases by ultrasound and serum-based examinations was inconclusive. The 750 bp scFv antibody gene was expressed in COS-7 cells, and the antibody localized in the cytoplasm. The scFv antibody can detect the germinal layer and protoscolices of actively growing cysts but not of the degenerating protoscolices and has a diagnostic efficiency higher than that of single serum or ultrasound testing (P b 0.05). The combined use of scFv antibodies with serology and ultrasound diagnostics results in a diagnostic efficiency comparable to that of surgery. The scFv antibody can be used as a confirmatory test for the diagnosis of hydatid disease in non-endemic areas, providing a beneficial supplementary diagnostic method that complements traditional immune testing and ultrasonic radiology and thus helping physicians to effectively differentiate hydatid disease.

A concomitant intramyocardial and pulmonary hydatid cyst: a rare case report

Abstract Cardiac hydatid cyst is an uncommon but potentially fatal disease. In cystic Echinococcus humans are an accidental host. Liver and lungs are the most frequently involved organs. Herein a unique case of intramyocardial hydatid cyst of left ventricle along with pulmonary hydatid cyst in a 38-year-old lady is reported. Surgical removal of the cardiac hydatid cyst was done with the aid of cardiopulmonary bypass followed by removal of pulmonary hydatid cyst.