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Dive into the research topics where Nikolaos Paschalidis is active.

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Featured researches published by Nikolaos Paschalidis.


Journal of Medical Case Reports | 2009

Low Spigelian hernia in a 6-year-old boy presenting as an incarcerated inguinal hernia: a case report

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

Carcinoid tumour of the appendix in children: a case report

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

Adenosquamous carcinoma of the pancreas: a rare tumor entity: a case report

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.


Cases Journal | 2009

Cecal epiploica appendix torsion in a female child mimicking acute appendicitis: a case report

Efstratios Christianakis; Nikolaos Paschalidis; Georgios Filippou; Dimitrios Smailis; Maria Chorti; Spyros Rizos; Dimitrios Filippou

Acute appendicitis is the most common cause of the right lower quadrant acute abdominal pain in children. Some other conditions including cecal epiploica appendix torsion, can simulate acute abdomen. Epiploica appendix torsion usually occurs in the sigmoid colon and rarely in the cecum of adult males. In children, this entity is extremely rare and may represent a diagnostic and therapeutic dilemma. We report a case of an 8-year-old Greek girl, presented with signs and symptoms mimicking acute abdomen. Our patient is the younger one among the other four with cecal epiploica appendix torsion that had been reported in the literature.


Cases Journal | 2010

Adenosquamous carcinoma of the pancreas: a case report.

Evangelia Skafida; Xanthippi Grammatoglou; Chryssoula Glava; Dimitrios Zissis; Nikolaos Paschalidis; Eleftheria Katsamagkou; Nikolaos Firfiris; Thivi Vasilakaki

Adenosquamous carcinoma of the pancreas is a rare variant of pancreatic exocrine carcinoma. We report a case of 70 year old man who came to our hospital with abdominal pain, anorexia and jaundice. Imaging of the abdomen showed a mass in the region of the head of the pancreas. Histological evaluation of the pancreatic tumor showed an adenosquamous carcinoma which was extensively infiltrative with perineural invasion, involvement of peripancreatic lymph nodes and all the thickness of the duodenum wall. The tumor exhibited a biphasic malignant growth identified as well to moderate differentiated adenocarcinoma and well to poorly differentiated squamous cell carcinoma.


World Journal of Radiology | 2010

Mirizzi syndrome type Va: A rare coexistence of double cholecysto-biliary and cholecysto-enteric fistulae.

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

Pelvic plastron secondary to acute appendicitis in a child presented as appendiceal intussusception. A case report

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.


World Journal of Surgical Oncology | 2010

Case of a sigmoid colon cancer with metachronous metastases to the mesorectum and the abdominal wall

John Kalaitzis; George Filippou; Adamantia Zizi-Sermpetzoglou; Athanasios Marinis; Andreas Hadjimarcou; Nikolaos Paschalidis; Spyros Rizos

BackroundSigmoid colon cancer metachronous metastases commonly occur in the liver and lungs with sporadic reports also to the spleen, stomach, thyroid gland, abdominal wall and upper urinary tract. This is a rare case of metachronous metastases invading the mesorectum and the abdominal wall.Case presentationA 72-year-old female underwent sigmoidectomy for stage I (T2N0 M0) sigmoid colon cancer in May 2008. In June 2009, an abdominal computed tomography scan revealed a tumor 2 cm in size at the lower anterior mesorectum and a second mass 2 cm in size at the anterior abdominal wall midline. Total colonoscopy showed no mucosal lesion. The serum carcinoembryonic antigen level was normal. A biopsy of the mesorectum tumor showed similar histologic characteristics with the primary tumor. Since no other site of recurrence was identified, an abdominoperineal resection was attempted. During the operation and after the removal of the incision recurrence, sinus bradycardia and signs of myocardial ischemia were noticed. A loop transverse colostomy was immediately perfomed and the operation was terminated. Postoperative cardiologic examination revealed an acute myocardium infract. Chemo-radiation of the mesorectum tumor and re-evaluation for surgical excision was decided.ConclusionMetachronous metastasis of the mesorectum from sigmoid colon cancer is extremely rare. Although patterns of lymphatic spread from rectal cancer to sigmoid colon have recently been demonstrated, there is no evidence of metachronous mesorectum invasion from sigmoid colon cancer. This could be the issue for future trials.


Hellenic Journal of Surgery | 2014

Meckel's Diverticulum Perforation: Report of a Case and Review of the Literature

Mavroudis Voultsos; Athanasios Marinis; Spyros Rizos; Nikolaos Paschalidis

Meckel’s diverticulum is the most common congenital anomaly of the small bowel. The majority of patients with this anomaly will remain asymptomatic; however, several complications can occur, including diverticulitis, haemorrhage, obstruction, intussusception, and perforation. A 39-year-old man was admitted to the emergency department after complaining of abdominal pain for the past few days. Upon worsening of his clinical status and after completing the diagnostic workup, he was taken to the operating theatre where he was found to have faecal peritonitis due to perforated Meckel’s diverticulum. Although it might be difficult to diagnose Meckel’s diverticulum pathology preoperatively, it should always be sought and identified during a laparotomy for acute abdomen in order to exclude the increased morbidities resulting from its complications.


The American Journal of Medicine | 2009

More Than Skin Deep

Ioannis Protopsaltis; Angeliki Angelidi; Haralampos J. Milionis; Ioannis Katsantonis; Paraskevi Gavra; Adamantia Zizi-Sermpetzoglou; Despina Perimeni; Nikolaos Paschalidis

o a s s p l s o RESENTATION kin lesions can sometimes be linked to internal processes nd actually serve as a “sign” of an undetected cancer. wareness of such skin changes might facilitate early dignosis and effective intervention. A 75-year-old man with a 40-year history of gastric denocarcinoma (managed with Billroth type II gastrecomy) was hospitalized due to anorexia, constipation, and ramatic weight loss (14 kg over the previous 6 months). is medical history was otherwise unremarkable. A systemtic physical examination performed at admission was unevealing. On the second day of hospitalization, however, a olitary lesion with mild pain appeared on the antecubital egion of his left upper limb at the site of a day-old needle uncture. The lesion soon became circular, infiltrated, and rythematous, with a vegetative border surrounded by inense redness. Within the next few days, it developed into an nnular verrucous plaque with a cobblestone appearance nd foci of erosion and ulceration (Figure 1).

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Athanasios Marinis

National and Kapodistrian University of Athens

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Dimitrios Filippou

National and Kapodistrian University of Athens

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Georgios Filippou

National and Kapodistrian University of Athens

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Spiros Rizos

National and Kapodistrian University of Athens

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Maria Chorti

Sismanoglio General Hospital

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Chryssoula Glava

National and Kapodistrian University of Athens

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Michael Pitiakoudis

Democritus University of Thrace

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Xanthippi Grammatoglou

National and Kapodistrian University of Athens

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