Spiros Rizos
National and Kapodistrian University of Athens
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Spiros Rizos.
BMC Gastroenterology | 2005
Dimitrios Filippou; Ioannis Psimitis; Diamanto Zizi; Spiros Rizos
BackgroundActinomycosis is a rare inflammatory disease caused by an anaerobic bacterium that can rarely affect the large intestine.Case presentationWe present a rare case of a cecum and ascending colon actinomycosis in a 72 years old woman, mimicking clinically a malignant inflammatory tumor of the right colon. The patient complained of right lower quadrant pain. Although our first thought was a peri-appendiceal abscess, CT scan suggested a right colon tumor. The patient underwent a right colectomy and the histological examination of the specimen revealed colon actinomycosis.ConclusionsPreoperative diagnosis in colon actinomycosis is difficult to achieve. Treatment of choice is antibiotics administration. A review of the possible pathogenesis and therapeutic modalities is also presented.
World Journal of Surgical Oncology | 2004
Dimitrios Filippou; Christoforos Tsikkinis; Georgios Filippou; Athanasios Nissiotis; Spiros Rizos
BackgroundTotally implantable central venous access devices (intraports) are commonly used in cancer patients to administer chemotherapy or parenteral nutrition. Rupture of intraport is a rare complication.Patients and methodsDuring 3 years period, a total of 245 intraports were placed in cancer patients for chemotherapy. Four of these cases (two colon cancer and one each of pancreas and breast cancer) had rupture of the intraport catheter, these forms the basis of present report.ResultsMean time insitu for intraports was 164∀35 days. Median follow-up time was 290 days and total port time in situ was 40180 days. The incidence of port rupture was 1 per 10,000 port days.Three of the 4 cases were managed by successful removal of catheters. In two of these the catheter was removed under fluoroscopic control using femoral route, while in the third patient the catheter (partial rupture) was removed surgically. One of the catheters could not be removed and migrated to right ventricle on manipulations.ConclusionPort catheter rupture is a rare but dreaded complication associated with subcutaneous port catheter device placement for chemotherapy. In case of such an event the patient should be managed by an experienced vascular surgeon and interventional radiologist, as in most cases the ruptured catheter can be retrieved by non operative interventional measures.
BMC Surgery | 2004
Dimitrios Filippou; Chariton Kolimpiris; Nikolaos Anemodouras; Spiros Rizos
BackgroundSeveral techniques have been described in liver hydatid disease surgery, with most well known partial cystectomy, capitonage and introflexion.MethodsWe present a technical modification on open partial cystectomy for liver hydatid disease. We performed this operation in 2 patients with liver echinococcosis. The cyst is being unroofed and evacuated from the daughter cysts. The identified bile vessels ligated. The remnants of the anterior wall (capsule of the cyst) are anchored with sutures in the posterior wall in a manner that the cavity of the cyst disappears.ResultsIn both patients the disease eradicated. No postoperative complications were observed including bile leaking and/or abscess formation.ConclusionsOur technique helps in the fast, and effective mobilization of the patient, as well as in the minimization of postoperative bile leaking.
World Journal of Surgical Oncology | 2006
Andreas Hatzimarkou; Dimitrios Filippou; Vasilios Papadopoulos; Georgios Filippou; Spiros Rizos; Panagiotis Skandalakis
BackgroundGardners syndrome can occasionally be complicated with intra-abdominal desmoid tumor. These tumors usually remain asymptomatic but can exhibit symptoms due to intestinal, vascular and ureteral compression and obstruction.Case presentationA rare case of a 41-year-old male patient with Gardners syndrome complicated with intra-abdominal desmoid tumor, which first presented as acute abdomen, is presented.ConclusionExtra-abdominal manifestations of Gardners syndrome along with a palpable abdominal mass would raise suspicion for the presence of a desmoid tumor in the majority of cases. In life-threatening cases, surgical treatment should be considered as a palliative approach, though the extent of excision remains debatable
Journal of Medical Case Reports | 2009
Efstratios Christianakis; Nikolaos Paschalidis; Georgios Filippou; Spiros Rizos; Dimitrios Smailis; Dimitrios Filippou
IntroductionLower Spigelian hernia is a very rare entity. The clinical findings are similar to those of inguinal hernias and in many cases may be misdiagnosed. In the literature, only a few references to this entity have been reported in children. To the best of our knowledge, this is the first case report of a lower Spigelian hernia in a child who presented with an acute painful scrotum.Case presentationWe discuss the case of a 6-year-old Greek boy who presented to our emergency department complaining of severe pain in the left inguinal area and scrotum. The acute painful swelling started suddenly, without any obvious cause. The initial diagnosis was incarcerated inguinal hernia which was reduced with difficulty. Five days later, the patient still experienced mild pain during palpation and he was operated on. During the operation, a large lower Spigelian hernia was revealed and reconstructed.ConclusionAlthough Spigelian hernias are rare in children and difficult to diagnose, physicians should be aware of them and include them in the differential diagnosis.
Cases Journal | 2008
Efstratios Christianakis; Nikolaos Paschalidis; Maria Chorti; Georgios Filippou; Spiros Rizos; Dimitrios Filippou
Carcinoids are the most common tumours of the appendix. These tumours show prevalence in white children. The clinical presentation of the appendiceal carcinoids is similar to that of acute appendicitis, although in many cases the tumour is diagnosed incidentally during an operation. The diagnosis should be confirmed histologically. The prognosis in patients with local disease is excellent. In small lesions isolated appendicectomy is considered as the most appropriate treatment, while in larger lesions right colectomy should be performed. We report a case of a carcinoid tumour in the tip of the appendix of a thirteen year old girl which was diagnosed intraoperatively. The patient received isolated appendicectomy due to the small size of the lesion. Ten years after the operation there is no evidence of recurrence or metastases, and the patient is considered free of disease.
Cases Journal | 2009
Pavlos Lampropoulos; Georgios Filippou; Evangelia Skafida; Thivi Vasilakaki; Nikolaos Paschalidis; Spiros Rizos
IntroductionAdenosquamous carcinoma of the pancreas is a rare variant of exocrine pancreatic tumor. This type of tumor is extremely rare as only few similar cases have been described in the literature.Case presentationWe present a case of a 72 years old male patient who was admitted to the hospital complaining of epigastric pain and jaundice. Pancreatic carcinoma of the head was diagnosed and a pylorus preserving pancreaticoduodenectomy was performed.ConclusionThis type of cancer is a very aggressive tumor followed by a dismisal prognosis. Multimodality therapy seems to be a reasonable approach but more studies are needed, to propose the most effective treatment.
World Journal of Radiology | 2010
Pavlos Lampropoulos; Nikolaos Paschalidis; Athanasios Marinis; Spiros Rizos
Mirizzi syndrome is a rare cause of intermittent obstructive jaundice, where an impacted stone in the cystic duct or Hartmanns pouch mechanically obstructs the common bile duct (CBD). We report a rare case of double cholecysto-biliary and cholecysto-enteric fistulae, in a 75-year-old female patient, presenting with a right upper quadrant abdominal pain and intermittent obstructive jaundice. Endoscopic retrograde cholangiopancreatography suggested Mirizzi syndrome. Operative findings included erosions of the lateral wall of the CBD and the second portion of the duodenum due to impacted gallstones. The defects were reconstructed primarily and a Kehr tube was inserted. The patient had an uneventful postoperative course and was discharged on the 14th postoperative day.
Cases Journal | 2008
Efstratios Christianakis; Anastasios Sakelaropoulos; Constantinos Papantzimas; Michael Pitiakoudis; Georgios Filippou; Dimitrios Filippou; Spiros Rizos; Nikolaos Paschalidis
We report an unusual case of an 11-year-old Greek girl with complicated acute appendicitis. The pelvic plastron that had been formatted secondary to appendix perforation was mimicking appendiceal intussusception in the preoperative ultrasound and computed tomography images. Although acute complicated appendicitis and appendiceal intussusception may represent possible causes of acute abdomen no similar cases have reported in the literature.
Journal of Medical Case Reports | 2008
Efstratios Christianakis; Nikolaos Pashalidis; Stavroula Kokkinou; Michael Pitiakoudis; Evangelos Mplevrakis; Maria Chorti; Spiros Rizos; Dimitrios Filippou
IntroductionCrohns disease (CD) can affect any part of the alimentary tract from the mouth to the anus, with most common site being the terminal ileum.Case presentationA child suffering from undiagnosed Crohn disease (CD), presented with an acute abdominal obstruction due to a large pseudopolyp in the jejunoileal area. At laparotomy, a jejunoileal segment of 45 cm, containing multiple areas of damage to the small intestine, was excised and a primary end – to – end anastomosis was performed.ConclusionThe coexistence of an intestinal pseudopolyp with undiagnosed Crohns disease may be the cause of acute abdominal obstruction in children.