Quiste óseo unicameral de calcáneo derecho / Unicameral Bone Cysts of the Calcaneus

Introducción: El quiste óseo unicameral es una lesión pseudotumoral benigna de contenido líquido, que representa el 3 por ciento de todos los tumores primarios. El calcáneo es una localización poco frecuente y el tarso, es el hueso más afectado. Objetivo: Presentar un caso de quiste óseo unicameral del calcáneo derecho que se diagnosticó y trató en el Hospital Universitario Manuel Ascunce Domenech de Camagüey con evolución clínica favorable. Presentación del caso: Paciente masculino de 22 años, con antecedentes de salud y dolor en el calcañal derecho de dos meses de evolución, que se incrementó hasta dificultarle la marcha. A la exploración física se constató dolor a la palpación de la cara lateral del calcañal derecho, y no se recogió otro dato de interés. La tomografía axial computarizada mostró una lesión hipointensa osteolítica, amplia, con fractura anterosuperior, adelgazamiento de las corticales y con tabicado de la cámara del quiste. Se decidió tratamiento quirúrgico para excéresis y toma de muestra para biopsia, la cual reveló tejido fibroso vascularizado con osteoclastos, células gigantes multinucleadas, cristales de colesterol y hemosiderina, consistente con quiste óseo unicameral. Conclusiones: El quiste óseo unicameral es una lesión pseudotumoral benigna pero potencialmente invalidante, cuyo diagnóstico puede ser fortuito o por alguna fractura patológica. La evacuación con curetaje amplio e injerto óseo, o sus derivados, es la técnica más empleada. El paciente evolucionó de forma favorable y se clasificó como curado(AU)

Introduction: The unicameral bone cyst is a benign pseudotumoral lesion with liquid content, accounting for 3 percent of all primary tumors. The calcaneus is a rare location and the tarsus is the most affected bone. Objective: to report a case of unicameral bone cyst in a right calcaneus, which was diagnosed and treated at Manuel Ascunce Domenech Universitary Hospital in Camagüey with favorable evolution. Case report: This is the case of a 22-year-old male patient with health history of pain in his right calcaneus for two months. The pain increased and made it possible to walk. Physical examination revealed pain on palpation of the lateral aspect of the right heel, and no other data of interest was collected. A wide, hypointense osteolytic lesion was revealed by computerized axial tomography showing an anterosuperior fracture, cortical thinning, and septation of the cyst chamber. Surgery was decided for excising and biopsy sampling that revealed vascularized fibrous tissue with osteoclasts, multinucleated giant cells, cholesterol crystals and hemosiderin, consistent with a unicameral bone cyst. Conclusions: The unicameral bone cyst is a benign but potentially disabling pseudotumoral lesion. The diagnosis may be fortuitous or due to some pathological fracture. Removal with wide curettage and bone grafting, or its derivatives, is the most widely used technique. This patient evolved positively and he was classified as cured(AU)

Application of ultrasound guided autobiopsy technology in interventional diagnosis of pulmonary peripheral disease / 重庆医学

Objective To investigate the value of ultrasound guided autobiopsy technology in interventional diagnosis of pulmo-nary peripheral disease .Methods 117 cases of pulmonary peripheral disease proved by X-ray or CT ,confirmed by ultrasound ,but could not be identified the nature by the examination above ,were biopsied under the guidance of ultrasound .Results All the 117 ca-ses were biopsed successfully .115 cases of them had definite pathological results ,the pathological positivity rate was 98 .3% ,in which contained 20 cases of chronic inflammation ,14 cases of tuberculosis ,30 cases of squamous cell carcinoma ,45 cases of adeno-carcinoma ,6 cases small cell undifferentiated carcinoma .No complication ,such as pneumatothorax ,hemoptysis ,bleeding occurred during the operation .Conclusion The ultrasound guided autobiopsy technology in interventional diagnosis of pulmonary peripheral disease is a safe and effective technique ,the tissues obtained from ultrasound guided autobiopsy were adequate to pathological slide which can provide the basis of the clinical diagnosis .