V. N. Papadopoulos
Aristotle University of Thessaloniki
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Featured researches published by V. N. Papadopoulos.
Techniques in Coloproctology | 2004
A. Michalopoulos; V. N. Papadopoulos; A. Zatagias; E. Fahantidis; Stylianos Apostolidis; E. Haralabopoulos; S. Netta; I. Sasopoulou; N. Harlaftis
BackgroundCommon sites of metastasis for the breast cancer are bones, lungs, the central nervous system and liver. The colon is the rarest site of metastasis for the breast carcinoma.Patients and resultsWe report our recent experience of two female patients, 55 and 57 years old respectively, who presented breast metastasis at the proximal transverse colon. They were operated for breast carcinoma followed by chemotherapy and radiotherapy, four and ten years before the metastasis was diagnosed. The symptoms were anaemia and bowel obstruction. Diagnosis was made by double contrast barium enema and colonoscopy. Postoperatively, both patients received systemic chemotherapy. At the follow-up, two and three years after, there is no evidence of recurrence or metastasis.ConclusionsPatients with history of breast cancer presenting with anaemia and/or bowel obstruction should be examined for possible metastasis to colon and should be treated surgically followed by systemic chemotherapy.
Techniques in Coloproctology | 2010
Antonios Michalopoulos; V. N. Papadopoulos; Daniel Paramythiotis; Theodossis S. Papavramidis; V. Douros; S. Netta; A. Mekras; Stylianos Apostolidis
We present a case of a 76-year-old patient with intestinal malrotation, with incomplete rotation of the small intestine and abnormal positioning of the duodenum and superior mesenteric vessels over the transverse colon. Furthermore, the patient suffered of a concomitant cancer of the ascending colon.
Acta Chirurgica Belgica | 2008
Stylianos Apostolidis; Theodossis S. Papavramidis; Antonios Michalopoulos; V. N. Papadopoulos; Daniel Paramythiotis; N. Harlaftis
Abstract This case report concerns a previously healthy thirty-five-year-old female with complaints of inguinal hernia that ultimately proved to be a retroperitoneal haematoma. The patient suffered from a car accident 5 months before admission and was hospitalized. During her prior hospitalization, explorative laparotomy revealed a haematoma of the mesentery. The haematoma was treated conservatively, with fluid resuscitation and rest. During her second admission, MRI of the inguinal region revealed localized haematoma. During inguinal exploration, a fluid-filled bluish indirect hernia sac was identified and found to be contoured by free-flowing, non-clotting blood. The postoperative course was uneventful, and the patient was discharged six days following surgery.
Techniques in Coloproctology | 2004
Stylianos Apostolidis; Antonis Michalopoulos; V. N. Papadopoulos; Daniel Paramythiotis; A. Zatagias; P. Gigis; N. Harlaftis
BackgroundHistamine has been shown to participate in immune response. Wound healing is a process of immune system. This experimental study was done to find the effect of histamine2 receptor antagonist ranitidine on the healing process of intestinal anastomosis in rats.MethodsEighty Wistar rats in four groups of 20 each underwent colon resection and anastomosis. They were given 2 ml saline or blood, twice daily 0.4 ml saline or 0.4 ml saline containing 0.7 mg ranitidine. The animals were killed 3 or 7 days postoperatively and the anastomotic strength assessed by bursting pressure.ResultsThe ranitidine group developed fewer anastomotic abscesses (p<0.001). Anastomotic strength was significantly reduced either on day 3 or 7 in animals given blood transfusions (p<0.04, p<0.001), whereas in animals given ranitidine this effect was partially reversed.ConclusionsThese data indicate that ranitidine has no influence in anastomotic bursting pressure, but has a lower incidence of septic complications.
Techniques in Coloproctology | 2004
A. Michalopoulos; V. N. Papadopoulos; George Basdanis; E. Haralabopoulos; A. Zatagias; S. Netta; Stylianos Apostolidis; E. Fahantidis
BackgroundGastrointestinal stromal tumours (GISTs) are the most common mesenchymal tumours of the gastrointestinal tract. They are positive to C-kit (CD 117), more common in the older males, and mostly in the stomach, less in the colon and rectum and oesophagus. Benign tumours are more common than the malignant ones. Classification of GISTs is based on morphology and immunochemistry.MethodsWe report two cases of colorectal gastrointestinal mesenchymal tumours, one on the transverse colon which was found to be immunohistochemically leiomyosarcoma and the other on the rectum which met the GIST criteria. The patients underwent transversectomy and abdominal perineal resection, respectively.ConclusionsThey did not receive Imanitib postoperatively and two years after there is no evidence of recurrence. Surgery is the treatment of choice for resectable GISTs, and other mesenchymal tumours benign or malignant.
Techniques in Coloproctology | 2011
Daniil Paramythiotis; A. Michalopoulos; V. N. Papadopoulos; D. Panagiotou; L. Papaefthymiou; E. Digkas; S. Salonikidis; George Basdanis
IntroductionThe term “gossypiboma” is used to describe any mass of non-absorbable surgical material. It is estimated that this complication appears every 1.000–10.000 procedures. It may lead to peritonitis, acute abdominal pain, intraperitoneal abscess, bowel obstruction, or perforation.Report of a caseWe present the case of an 80-year-old female patient admitted for chronic abdominal pain and fever. A CT scan and MRI were performed with a probable diagnosis of carcinoma or pelvic abscess. A surgical history of hysterectomy and repair of abdominal wall hernia with a mesh were mentioned.ResultsExploratory laparotomy revealed the presence of an irregular, soft mass with characteristics of an abscess located into the mesosigmoid. Hartman’s sigmoidectomy was performed, and the patient’s postoperative course was uneventful. The histopathological examination confirmed the diagnosis of gossypiboma.ConclusionsRetained foreign intraperitoneal materials often represent diagnostic dilemmas, since symptomatology is no specific and the time elapsed from surgery is long. The policy of prevention’s importance is highly appreciated.
Techniques in Coloproctology | 2010
V. N. Papadopoulos; A. Michalopoulos; Stylianos Apostolidis
The causes of pouch dysfunction are inflammatory, non-inflammatory and iatrogenic. The most common long-term complication is pouchitis. Diagnosis should be based on clinical symptoms, endoscopic appearance and histologic findings. Ciprofloxacin and metronidazole are the treatment of choice for pouchitis. Fistulae and perianal abscesses should be suspected to be an expression of misdiagnosed Crohns disease. Strictures are confronted by endoscopic balloon dilatation. Patients who will be refractory to all forms of medical treatment should have surgical treatment such as faecal diversion or pouch revision.
Techniques in Coloproctology | 2010
G. Basdanis; V. N. Papadopoulos; Stavros Panidis; Ioanna Tzeveleki; E. Karamanlis; A. Mekras; Stylianos Apostolidis; Antonios Michalopoulos
Our case concerns a 52-year-old male with FAP, who was treated surgically by restorative colectomy and ileal pouch anal anastomosis. Three years later, he presented with acute epigastric pain and obstructive ileum. While a mass in the left lateral abdominal region was palpated. The patient underwent laparotomy, some adhesions were dissected and biopsies were taken from the mass. Pathological examination revealed a desmoid tumor of the mesentery.
Case reports in urology | 2016
Daniel Paramythiotis; Petros Bangeas; Konstantinia Kofina; V. N. Papadopoulos; Antonios Michalopoulos
Introduction. Hydatid cyst disease caused by Echinococcus granulosus is rarely presented in the kidneys, whereas isolated renal occurrence is estimated to be about as low as 2–4% of all cases. We present a case of a female patient suffering from this condition that was treated successfully in our department. Case Presentation. A 44-year-old woman was incidentally diagnosed with a 14 cm left renal cystic mass through ultrasound imaging performed during upper abdominal pain investigation. Laboratory examinations were normal and CT imaging set the diagnosis of an isolated left renal hydatid cyst. The cyst was excised and the postoperative period was uneventful. Discussion. Isolated renal hydatid cyst is a very rare condition and could possibly be misdiagnosed with other renal masses. The clinical history, laboratory tests, and thorough radiologic imaging are crucial for the accurate preoperative diagnosis.
Frontiers in Surgery | 2017
Daniel Paramythiotis; Anestis Karakatsanis; Petros Bangeas; Konstantinia Kofina; V. N. Papadopoulos; Stylianos Apostolidis; Antonios Michalopoulos
Introduction Hydatid cysts most commonly present in the liver and the lungs; however, they can appear more rarely in other locations, such as the mesentery, with a rather unclear mechanism of manifestation. Herein, we present a case of simultaneous presence of hydatid cysts in the liver and the mesentery of a young man. Case report A 39-year-old man was referred to our Department for further investigation of intermittent abdominal pain, especially in the right upper quadrant, and abdominal distension. Abdominal CT imaging revealed three calcified lesions, one in the liver, a similar adjacent to an ileal loop and one close to the urinary bladder, while antibody control was positive for echinococcal infection. The lesions were excised and the patient was discharged on the seventh post-operative day in good general condition. Post-operative control after 6 months did not show any signs of recurrence. Conclusion Simultaneous presence of hydatid cysts in two organs occurs in 5–13% of cases. Presence in the mesentery is extremely rare, although, should be included in the classic differential diagnosis, especially in endemic areas.