1/57. Solid-pseudopapillary tumor of the pancreas--a rare and frequently misdiagnosed neoplasm.INTRODUCTION: We describe a young woman with an unusual pancreatic tumor. FINDINGS AND DISCUSSION: Intraoperatively, a smoothly demarcated and encapsulated tumor was exposed. It was large (5 cmx4 cm) and of solid consistency, with a small stalk attached to the uncinate process. The tumor was partially surrounded by the pancreatic head. The macroscopic appearance suggested a benign tumor. frozen sections revealed a benign pancreatic tumor, most likely of endocrine nature. Based on these findings, tumor enucleation was performed. The patient recovered rapidly from the intervention and was discharged from hospital after 2 weeks. One year after surgical treatment, the patient is without recurrence. The final diagnosis of the tumor was a solid pseudo-papillary tumor.- - - - - - - - - - ranking = 1keywords = neoplasm, ear (Clic here for more details about this article) |
2/57. Papillary cystadenoma: a rare tumor of the minor salivary glands.Papillary cystadenoma of the minor salivary glands is a rare benign neoplasm that clinically resembles mucous cysts. Characteristic histological features are diagnostic. However, salivary gland histology is particularly difficult to interpret. Primarily, as further clinical and histological differential diagnoses have to take into account the well-differentiated cystic mucoepidermoid carcinoma and the papillary cystic type of acinic cell carcinoma, both malignant neoplasms of the salivary glands. We report on a 39 year old female with a bluish cystic lesion at the buccal mucosa, which occurred 14 years after the excision of a similar appearing, histologically proven mucous retention cyst at the same location. The histology of this tumor, however, revealed a papillary cystadenoma. Although rare, benign and malignant salivary gland neoplasms occur in minor salivary glands, and are clinically indistinguishable from mucous retention cysts. The dermatologist should be familiar with these differential diagnoses, since different therapeutic consequences result from an early diagnosis obtained by excision and histological examination of oral cystic tumors.- - - - - - - - - - ranking = 0.75748859557034keywords = neoplasm, ear (Clic here for more details about this article) |
3/57. Papillary cystic neoplasm of the pancreas in a teenage boy.We present a case of a 13-year-old boy with a left-sided abdominal mass which proved to be a papillary cystic neoplasm of the pancreas. This low-grade malignant lesion of young patients is very rare, and exceedingly rare in males. The prognosis following resection of this tumor is good. We present the ultrasound and computed tomographic picture of this lesion, as well as the gross and microscopic pathology.- - - - - - - - - - ranking = 1.2455068426578keywords = neoplasm, ear (Clic here for more details about this article) |
4/57. Pancreatic solid-cystic-papillary tumor: clinicopathologic features in eight patients from hong kong and review of the literature.Solid-cystic-papillary tumors (SCPTs) of the pancreas are rare. The clinicopathologic features and pathogenesis of these tumors have attracted a number of investigations, but the results remain unclear. We investigated the clinicopathologic data, immunohistochemical expression of the pan-endocrine markers, hormones, steroid receptors, and p53 overexpression in pancreatic SCPTs from eight Chinese patients (seven women, one man) collected over a 24-year period. They accounted for 2.5% of the primary pancreatic tumors. The tumors were seen in young women (mean age 27 years). They were large (mean size of resected tumor was 8.4 cm), benign, had solid and cystic areas, and were evenly distributed in the pancreas. The main differential diagnosis was pancreatic endocrine tumor. The tumors were negative for pan-endocrine markers, hormones, estrogen receptor, progesterone receptor, and p53. To date, 452 pancreatic SCPTs have been documented in the English literature. They occurred in patients of different ethnic groups, particularly in non-Caucasians. The tumors were frequently noted in young females. Uncommon cases of malignant pancreatic SCPTs were often found in older men and had indolent behavior. It was concluded that pancreatic SCPTs have distinct clinicopathologic characteristics. The present observations, together with a review of the literature suggests that overexpression of p53 or estrogen receptor is not important in the pathogenesis of pancreatic SCPTs.- - - - - - - - - - ranking = 0.0089863146844065keywords = ear (Clic here for more details about this article) |
5/57. Removal of a voluminous serous papillary paraovarian cystadenoma by endoscopic surgery. A case report.A case of a right paraovarian cystadenoma (7.3 litres) in a young woman, 19 years old, who was treated by laparoscopy is described. The advantages of endoscopic surgery are evaluated.- - - - - - - - - - ranking = 0.0029954382281355keywords = ear (Clic here for more details about this article) |
6/57. Papillary cystic tumor of the pancreas coexisting with hairy cell leukemia.The coexistence of a pancreatic papillary cystic tumor with hairy cell leukemia is reported. To the best of our knowledge this association has never been published. A 41-year-old man diagnosed with hairy cell leukemia developed a second malignancy that corresponded to a papillary cystic pancreatic tumor. The patient underwent splenectomy and a tumoral surgical resection, and is currently well at 21 months follow-up. A pathogenetic relationship between the two malignancies was not demonstrated. Hairy cell leukemia has been reported to be associated to a great number of different second malignancies. In contrast, only two papillary cystic tumors of the pancreas have been described associated to a second neoplasm, a papillary thyroid carcinoma and a colonic carcinoma. This unusual benign or low-grade malignant pancreatic tumor more commonly occurs in the tail of the pancreas of young women. We want to stress the unusual presentation of this pancreatic tumor affecting the head of the gland in a male patient as well as its coexistence with a hairy cell leukemia.- - - - - - - - - - ranking = 0.25149771911407keywords = neoplasm, ear (Clic here for more details about this article) |
7/57. Solid-pseudopapillary tumor of the pancreas (Frantz tumor) in children: report of four cases and review of the literature.BACKGROUND: Solid-pseudopapillary tumor of the pancreas (SPT) is an exceptionally rare neoplasm in children. Its origin remains enigmatic. It is of low malignant potential and occurs most frequently in young females. patients AND methods: A cumulative review of the tumor's clinicopathological characteristics from the world's literature is presented. The clinical course, pathohistologic data and outcome of surgery of four Austrian children treated at the general hospital of Vienna are analyzed. RESULTS: Between 1987 and 1999, four girls (age: 12--16 years) with SPT were diagnosed at our institution. All patients presented with an abdominal mass and uncharacteristic abdominal pain. Two tumors were located in the tail, one in the body and tail and one in the head of the pancreas (diameter: 7--15 cm). Surgical procedures included three distal pancreatectomies and one partial duodenopancreatectomy (Whipple procedure). One patient had two recurrences with metastases that could only be partially resected. Chemotherapy was initiated for this patient. In the follow-up period (range: 6 months to 12 years) all patients are alive with no evidence of recurrence. CONCLUSIONS: SPT is a rare differential diagnosis of a pancreatic mass in children. It is mandatory to establish this diagnosis since complete surgical removal of the tumor even in case of metastases or local invasion offers an excellent prognosis.- - - - - - - - - - ranking = 0.2544931573422keywords = neoplasm, ear (Clic here for more details about this article) |
8/57. A woman with recurrent abdominal pain.Papillary cystic and solid tumor of the pancreas is a rare neoplasm with low malignancy potential generally found in young women. Although its presentation is typically one of vague abdominal complaints, its radiographic and histologic characteristics are distinct. Recognition of the clinical and pathological spectrum of papillary cystic and solid tumor of the pancreas is essential for diagnosing this uncommon condition and differentiating it from other pancreatic masses encountered in the young.- - - - - - - - - - ranking = 0.24850228088593keywords = neoplasm (Clic here for more details about this article) |
9/57. Solid and cystic papillary epithelial neoplasm of the pancreas. A report of 3 cases.This is a report of 3 female patients presenting with solid and cystic papillary epithelial neoplasms of the pancreas (SCPEN). All 3 lesions were incidental findings. SCPEN is an uncommon low-grade malignant tumour that is histologically distinct from ductal adenocarcinoma and islet cell tumour, occurs chiefly in young women, and is amenable to surgery. The cell of origin is the subject of some debate.- - - - - - - - - - ranking = 1.2425114044297keywords = neoplasm (Clic here for more details about this article) |
10/57. Pseudopapillary solid cystic tumor arising from an extrapancreatic site.A case of pseudopapillary solid cystic tumor arising in the omentum of a 46-year-old woman is presented. A well-defined, encapsulated tumor measuring 5.2 x 4.0 x 4.0 cm was histologically characterized by a combination of solid and pseudopapillary growth patterns of tumor cells with abundant pale-to-eosinophilic cytoplasm. No pancreatic tissue was observed within or adjacent to the tumor. Immunohistochemically, the tumor was positive for vimentin, epithelial membrane antigen, and alpha1-antichymotrypsin. Ultrastructurally, the tumor cells contained electron dense granules of variable sizes, most likely representing lysosomes. flow cytometry showed a diploid dna content with a high S-phase fraction. The patient was well without recurrence 3 months after diagnosis. It is important to include pseudopapillary solid cystic tumor in the differential diagnosis of omental tumors.- - - - - - - - - - ranking = 0.0029954382281355keywords = ear (Clic here for more details about this article) |
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