ABSTRACT
Primary osteosarcoma of the bladder is an extremely rare type of tumour, and less than 30 adequately documented cases have been registered. From a clinical and radiological point of view, it is impossible to distinguish from other types of bladder tumours, since despite the fact that calcification of the bladder wall is common in osteosarcoma, other bladder diseases exist which may also present calcification. Prior to primary bladder osteosarcoma diagnosis, it is vital to first rule out the existence of an skeletal origin. Differential diagnosis must be carried out essentially with other bone-forming tumours, such as carcinosarcoma and transitional cell carcinoma with bone metaplasia. Prognosis for bladder osteosarcoma is extremely pessimistic, as the majority of patients do not survive beyond 6 months, regardless of the treatment carried out. We present a case of bladder osteosarcoma treated by right hemi-cystectomy, which remains disease free after a follow-up period of one year.
Subject(s)
Cystectomy/methods , Osteosarcoma/surgery , Urinary Bladder Neoplasms/surgery , Aged , Humans , MaleABSTRACT
El osteosarcoma primario de vejiga es un tumor de extraordinaria rareza, con menos de 30 casos adecuadamente documentados. Desde el punto de vista clínico y radiológico es indistinguible de otros tipos de tumor vesical, ya que aunque las calcificaciones de la pared vesical son frecuentes en el osteosarcoma, existen otras patologías vesicales que también pueden presentar calcificaciones. Para realizar el diagnóstico de osteosarcoma vesical primario es imprescindible descartar la existencia de afectación esquelética. El diagnóstico diferencial debe realizarse fundamentalmente con otros tumores formadores de hueso, como el carcinosarcoma y el carcinoma de células transicionales con metaplasia ósea. El pronóstico del osteosarcoma vesical es ominoso, ya que la mayoría de los pacientes fallecen antes de los 6 meses, independientemente del tratamiento efectuado.Presentamos un caso de osteosarcoma vesical tratado mediante hemicistectomía derecha, que permanece libre de enfermedad tras un año de seguimiento. (AU)
Subject(s)
Aged , Male , Humans , Osteosarcoma , Cystectomy , Urinary Bladder NeoplasmsABSTRACT
We discuss a case of a 68 years old man with an acute myocardial infarction and a cardiopulmonary arrest that 3 days after his admission developed a continuous abdominal pain and findings of peritoneal inflammation. The mesenteric angiographical study was normal. A laparotomy was practised and disclosed a local peritonitis and a colonic infarction without mesenteric vascular occlusion. This picture is very unusual in patients with acute myocardial infarction or cardiopulmonary arrest.
Subject(s)
Colitis, Ischemic/etiology , Myocardial Infarction/complications , Abdominal Pain/etiology , Aged , Colitis, Ischemic/diagnosis , Colon/blood supply , Humans , Infarction/diagnosis , Infarction/etiology , MaleABSTRACT
Se presenta el caso de un paciente de 68 años que sufrió un infarto agudo de miocardio con parada cardiaca reanimada y que al 3º día de su ingreso desarrolló un cuadro de abdomen agudo y rectorragia. Se realizó angiografía mesentérica que fue normal. Fue intervenido quirúrgicamente evidenciándose peritonitis local y una necrosis en colon ascendente secundaria a una colitis isquémica de origen no oclusivo, cuadro clínico extremadamente infrecuente en este tipo de pacientes (AU)
Subject(s)
Aged , Male , Humans , Abdominal Pain/etiology , Colitis, Ischemic/diagnosis , Colon/blood supply , Infarction/diagnosis , Infarction/etiology , Myocardial Infarction , Colitis, Ischemic/etiology , Myocardial Infarction/complicationsABSTRACT
A case of pancreatic mucinous cystadenocarcinoma (PMC) with two pseudosarcomatous mural nodules (PMN) is described. These nodules have not been previously described in this type of tumor. In ovarian mucinous tumors (OMT), similar nodules have been reported, the nature of which has been discussed in detail. Here the similarity between the tumor described here and ovarian tumors is stressed. The immunohistochemical study carried out disclosed in the nodules strong positive staining for vimentin and moderate positivity for keratin and epithelial membrane antigen. These findings, along with histologic details, favor the epithelial nature of the nodules. It was concluded that the nodules are foci of anaplastic carcinoma with high proliferative cell rate, which could explain the coexpression of vimentin and keratin.
