Cases reported "Appendiceal Neoplasms"

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1/81. Synchronous occurrence of carcinoid tumour of the appendix and T-cell lymphoma of the ileum. A case report with review of the literature.

    Carcinoid tumours of the gastrointestinal tract are often associated with other tumour types at various sites. However, only rarely has a lymphoma constituted the second tumour. In the present paper, we report the case of a 62-year-old woman who was operated on for a perforated T-cell lymphoma of the ileum and in whom an appendicular carcinoid tumour was incidentally discovered at surgery. It was possible to completely remove both tumours and postoperatively the patient underwent CHOP treatment. Ten months after surgery the patient is well, with no tumour manifestations. We also discuss problems concerning classification of the lymphoma on account of loss of the T-cell antigen CD45RO (UCHL-1).
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2/81. Primary appendiceal adenocarcinoma.

    Adenocarcinoma of the appendix is rarely encountered and is usually discovered at the pathology examination of the surgical specimen. Adenocarcinoma of the vermiform appendix is a rare neoplasm and constitutes <0.5% of all gastrointestinal neoplasms. There is no symptom of appendiceal cancer, and it is very difficult to diagnose preoperatively. Most female patients are diagnosed as having a gynecologic disease. Second primary synchronous and metachronous neoplasms, especially in the gastrointestinal tract, are found in up to 35% of patients with appendix adenocarcinoma. We report a case of adenocarcinoma in a 56-year-old woman misdiagnosed as having right ovarian carcinoma, and we review the literature.
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3/81. Adenocarcinoid of the appendix presenting as a disseminated ovarian carcinoma: report of a case.

    The occurrence of disseminated tumors of the appendix is a rare event. Usually appendix tumors are very small, located on the inside of the appendix, and can be pathologically diagnosed. Adenocarcinoid is an uncommon variant of carcinoid tumors that usually arises in the appendix. This report describes a case of a primary adenocarcinoid of the appendix in a patient who was preoperatively diagnosed to have uterus myomatosus but was intraoperatively found to instead have disseminated ovarian carcinoma. This case demonstrates that the clinical picture can be misleading, and that surgeons therefore always have to wait for the final pathological report before making a final diagnosis.
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4/81. Mucinous cystadenocarcinoma of the appendix. A rare tumour of the right iliac fossa.

    A case of mucinous cystadenocarcinoma of the appendix is presented. The clinical feature is a painful syndrome of the right iliac fossa. In our observation, the diagnosis was not allowed by preoperative imaging. appendectomy was initially performed and completed by right hemicolectomy and lymphadenectomy after histological diagnosis of the appendicular malignant tumour was forwarded. The prognosis of this tumour is generally excellent providing early diagnosis and wide enough surgery.
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5/81. Primary appendiceal malignancy mimicking advanced stage ovarian carcinoma: a case series.

    BACKGROUND: Primary appendiceal malignancy metastatic to the ovaries is a rare condition that may mimic late stage ovarian cancer. This condition is rarely diagnosed preoperatively. CASES: Three patients referred to our institution from 1994 to 1999 for presumed late stage ovarian cancer were found to have primary appendiceal adenocarcinoma, adenocarcinoid, and mucinous cystadenocarcinoma metastatic to the ovaries at laparotomy. We describe the clinical course of these patients and review the relevant literature. CONCLUSION: It is important for the gynecologic oncologist to be aware of the clinicopathological features and surgical management of these malignancies, as the incidence, prognosis, and recommended treatment vary with histological subtype.
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6/81. Multifocal carcinoid tumor resembling a solitary tumor: report of a case.

    A laparotomy was performed on a 44-year-old male patient with an acute abdomen who had findings suggestive of acute appendicitis and a periappendicular abscess. A histopathological examination revealed a carcinoid tumor infiltrating the intestinal serosa. The distal ileum and cecum were infiltrated with more than 40 multifocal tumors, with the largest measuring 1 cm in size. The distal ileum and cecum were resected. We failed to find any distant metastases either peroperatively or during postoperative scintigraphic tests. In addition, the patient had no symptoms of carcinoid syndrome either before or after surgery. No recurrence was experienced. We thus conclude that primary multifocal carcinoid tumors may act as a solitary carcinoid tumor, and the largest tumor tends to indicate the overall clinical outcome.
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7/81. Primary appendiceal adenocarcinoma of colonic type with perforating peritonitis.

    Primary adenocarcinoma of the appendix is rare, especially the colonic type. We report a case of appendiceal adenocarcinoma of colonic type associated with perforating peritonitis after aorto-femoral artery bypass surgery. A 79-year-old woman presented with fever and pain in the right lower abdomen. She had undergone aorto-femoral artery bypass surgery due to arteriosclerosis obliterans 6 months earlier. Abdominal ultrasonography and computed tomography showed a suspected pool of fluid surrounding the artificial vessel and a mass lesion in the upper end of the fluid collection. These findings suggested localized peritonitis due to appendiceal perforation. Emergency laparotomy showed a pool of pus around the artificial vessel and inflamed appendix, which adhered to the surrounding tissue. The mass was excised in combination with an ileocaecal resection, followed by an ileocolic anastomosis. The histological diagnosis was moderately differentiated adenocarcinoma of the appendix, colonic type. The tumour had infiltrated and obstructed the lumen of the orifice of the appendix, which may have caused perforation of the appendix. She was examined at regular periodic follow-ups and no evidence of recurrence or metastasis was noted in the 12-month postoperative period. These findings indicate that, in cases of acute appendicitis, especially with perforation, the possibility of appendiceal adenocarcinoma should be considered.
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8/81. intussusception of the appendix secondary to mucinous cystadenoma.

    intussusception of the appendix vermiformis in adults is an unusual entity. We present a 52-year-old male patient with intussusception of the appendix due to a mucinous cystadenoma, and discuss the clinical features, preoperative diagnosis, classification and therapy of this condition together with a review of the literature.
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9/81. Mucinous cystadenocarcinoma in the appendix in a patient with nonrotation: report of a case.

    Mucinous cystadenocarcinoma in the appendix is uncommon. An anomaly in the rotation of the intestine is also uncommon in adults. We herein report a case of mucinous cystadenocarcinoma in the appendix in a patient with nonrotation. To the best of our knowledge, this is the first report of appendiceal carcinoma in a patient with an anomaly of intestinal rotation. A 76-year-old woman was admitted to our hospital with left low abdominal pain. physical examination revealed tenderness with muscle rigidity in the left lower quadrant. The patient was diagnosed to have intussusception by computed tomography and ultrasonography. An emergency operation showed nonrotation and the top of the appendix situated in the left iliac fossa. An appendectomy was performed because of gangrenous acute appendicitis. However, the cut surface of the appendix showed a mucocele measuring 4 x 4 cm in size. It was diagnosed to be mucinous cystadenocarcinoma histopathologically. A right hemicolectomy with lymph node dissection was performed, and no remaining cancer cells or lymph node metastases were found in the resected specimen pathologically. The patient had an uneventful postoperative course. No signs of recurrence have been observed for 23 months since her last operation.
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10/81. Sonographic appearance of appendiceal mucocele.

    We present a case of the diagnosis of an appendiceal mucocele in a 23-year-old woman. The unusual preoperative sonographic appearance of the lesion is described and its clinical significance and differential diagnosis are discussed.
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