• Advances in pediatric surgery
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• v.1 no.1
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• pp.79-84
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• 1995

Two cases with papillary cystic neoplasm of the pancreas are reviewed and discussed. Up to recently, the tumors have been misclassified as nonfunctioning islet cell tumor or carcinoma, acinar cell carcinoma, papillary cystadenocarcinoma, or pancreatoblastoma. It frequently has been managed with aggressive surgery such as pancreatoduodenectomy. The tumors are well encapsulated and the cut surfaces are characteristically solid and hemorrhagic. Ultrasonography and CT scan are the most useful tools for the diagnosis. The neoplasms usually behave like a very low grade malignancy, so complete removal is the treatment of choice for the tumor arising anywhere in the pancreas. We have a boy and a girl who have papillary cystic neoplasm. The boy was 12 years old and the girl was 14 years old. Both underwent distal pancreatectomy and the progress were uneventful. We have a boy and a girl who have papillary cystic neoplasm. The boy was 12 years old and the girl was 14 years old. Both underwent distal pancreatectomy and the progress were uneventful.

• Advances in pediatric surgery
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• v.12 no.1
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• pp.32-40
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• 2006

Four children with solid and papillary epithelial neoplasm of the pancreas are reported. Three were girls. Mean age at operation was 12 years and 7 months (10-13 years). Clinical presentation included nausea, vomiting, and apalpable mass. One had hemoperitoneum due to tumor rupture. In two cases, tumors were in the body of the pancreas, and one the body and tail, and in one,the tail. Mean diameter of the tumors was 10.8 cm (8-15cm). Surgical procedures were distal pancreatectomy and splenectomy in 2 cases, distal pancreatectomy in one, and subtotal pancreatectomy and splenectomy in one. Mean follow-up period was 61 months (6-121 months). Three patients are still alive without any recurrence. However, in the one case of ruptured tumor, portal vein thrombosis and liver metastasis developed after subtotal pancreatectomy and splenectomy during the course of postoperative adjuvant chemotherapy.

• The Korean Journal of Cytopathology
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• v.3 no.2
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• pp.37-51
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• 1992

The fine needle aspiration (FNA) cytology findings in 19 cases of primary neoplasia of the pancreas are reported. The aspirates were obtained under ultrasound guidance in 16 cases and under direct vision intraoperatively in three cases. These cases represented 79% of 24 diagnoses in a series of 30 pancreatic FNAs. Of these 30 cases no cytologic diagnoses were made in six cases (20%) because of insufficient or inadequate samples The cytologic diagnoses were confirmed by histologic examination following resection or biopsy of the tumors. The diagnoses included 9 duct ceil adenocarcinomas, 1 mucinous adenocarcinoma, 2 mucinous cystadenocarcinomas, 1 acinar cell carcinoma, 1 papillary cystic tumor 3 islet ceil tumors, 1 neuroendocrine carcinoma and 1 leiomyosarcoma. The cytologic features of the neoplasia were detailed and the differential diagnosis was discussed. The important criteria for the cytodiagnosis of pancreatic tumors were reviewed. This review leads us to think that nonoperative (percutaneous) cytologic approaches to the diagnosis of pancreatic tumor are advantageous for the management of patients, and that correct cytologic diagnosis with pancreatic FNAs can easily be made, if adequate samples are obtained.

• Advances in pediatric surgery
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• v.4 no.1
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• pp.55-60
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• 1998

Six children with solid and papillary epithelial neoplasm of the pancreas were studied retrospectively. There were 2 boys and 4 girls. The mean age at operation was 11 years(range; 8-13years). Three patients had incidental abdominal mass, in two patients the mass was non-tender, in one patient the mass was tender. The minimum size of tumor was $6.5{\times}6.0$ cm and the maximum was $10.5{\times}8.0$ cm. Five tumors were located in the head of the pancreas, and the other one in the tail. Local invasion or metastasis was not noticed. Tumors were removed completely by performing the following operations: 3 pylorous preserving pancreaticoduodenectomy, 2 Whipple's operation and 1 distal pancreatectomy. There was no mortality. The histologic findings were characteristic. There were no recurrences during a follow-up of 0.5 to 12 years (mean; 5.0 years).

• Advances in pediatric surgery
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• v.6 no.2
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• pp.134-138
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• 2000

Solid and papillary cystic neoplasm of pancreas is an uncommon low grade malignant tumor. It is predominant in young female between the second and third decades of life, and amenable to cure by surgical treatment. The authors report two cases of solid and papillary neoplasm of pancreas pathologically verified at Kyung Hee University Hospital. The first case was an 11-years old female patient and the other case was a 12-years old male. Symptoms were abdominal discomfort, nausea and vomiting in both cases and abdominal pain in the female patient. CT finding included a solid and papillary neoplasm of pancreas. The mass was well-demarcated with solid and cystic necrosis components. In the female patient, a large hematoma was found. Gross findings revealed apparent encapsulation, cystic degeneration and hemorrhagic necrosis. Microscopically the tumors were characterized by distinctive solid and papillary patterns of cellular arrangement without local invasion. Both patients were discharged after surgery and followed up without any problem.

• 대한세포병리학회:학술대회논문집
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• 1992.06a
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• pp.11.2-12
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• 1992

• The Korean Journal of Nuclear Medicine
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• v.28 no.1
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• pp.145-147
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• 1994

Colloid uptake in various hepatic conditions such as focal nodular hyperplasia, regenerating nodules in the cirrhotic liver, hamartoma, hemangioma and rarely hepatoma has been documented. Extrahepatic tumors may show colloid uptake and they include splenic hemangioma, malignant fibrous histiocytoma, breast carcinoma and Kaposi's sarcoma. The mechanism of colloid uptake in those lesions is associated with phagocytic activity in or around the tumors. We report a pancreas islet cell tumor that showed colloid uptake on $^{99m}Tc$-phytate liver scan without histologic evidence of phagocytosis by tumor cells or infiltration of phagocytes in the tumor Microscopically the tumor was highly vascular and showed diffuse hemorrhage throughtout the tumor. We postulated that extravasation of the colloid into the tumor insterstitium caused nonspecific colloid uptake in this tumor. It is expected that hemorrhagic tumor may show nonspecific colloid uptake without phagocytosis in or about the lesion.

• Journal of Physiology & Pathology in Korean Medicine
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• v.26 no.6
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• pp.980-982
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• 2012

Metastasis to the pancreas from extra-pancreatic primary cancers are rare; they commonly present as a manifestation of widespread disease and rarely as an isolated mass of the pancreas. Examinations showed a pancreatic tumor infiltrating the pancreas tail portion and an endoscopic ultrasound guided percutaneous biopsy proved that the lesion was metastatic from the lung carcinoma. Most metastatic cases of the pancreas tend to be discovered in patients with widely disseminated malignant disease. In addition, patients with pancreatic metastasis are often asymptomatic, the metastatic lesions are found incidentally, and are misdiagnosed as primary pancreatic tumors. This report that patient undergoing chemotherapy for a small cell lung cancer, who 1 year and 3 months later, accidentally diagnosed of solitary pancreas metastasis and confirmed histology by needle biopsy using endoscopic ultrasound.

• Journal of Yeungnam Medical Science
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• v.15 no.1
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• pp.36-46
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• 1998

Solid and papillary epithelial neoplasm of pancreas is a rare tumor, usually affecting young women, and its histogenesis is still controversial. This study was performed to define the clinicopathologic features and cellular origin of this tumor. Eight female cases of solid and papillary epithelial neoplasm of pancreas were studied by analyzing the clinicopathologic findings and immunohistochemical and electron-microscopic findings. The age of eight cases ranged from 21 to 54 years (mean, 34 years). The tumors developed in the tail (4 cases), body-tail (2 cases), body (1 case) and head (1 case). The mean diameter of tumors was 9.3 em (range, 5.5 to 13 cm). Tumors showed solid, cystic and hemorrhagic areas. Histologically, the tumor cells were uniformly round or polygonal in shape, and formed solid sheets and papillary pattern. On the immunohistochemical stain, 8 cases (100%) were immunoreactive for ${\alpha}1$-antitrypsin, 7 cases (87.5%) for cytokeratin, 7 cases (87.5%) for progesterone receptor, 6 cases (75%) for vimentin, and 1 case (12.5%) for synaptophysin, respectively. None of them were immunoreactive for estrogen receptor. Electron microscopic examination showed many mitochondria, annulate lamellae and canaliculi-like gap. These findings suggest that solid and papillary epithelial tumor of pancreas possibly originates from totipotent stem cells.

• Advances in pediatric surgery
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• v.12 no.2
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• pp.221-231
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• 2006

Solid pseudopapillary tumor (SPT) of the pancreas occurs most frequently in the second or third decades of life, and is prevalent in females. Unlike other pancreatic malignancy, SPT usually has a low malignancy potential. This study reviews our clinical experience and surgical treatment of pancreatic SPT. Admission records and follow-up data were analyzed retrospectively for the period between January 1996 and January 2003. Five patients with a pancreatic mass were operated upon and SPT was confirmed by pathology in each case. The male to female ratio was 1: 4. The median age was 13.8 years. Findings were vague upper abdominal pain (n=5, 100 %) and an abdominal palpable mass (n=3, 60 %). The median tumor diameter was 6.8cm and the locations were 2 in the pancreatic head (40 %) and 3 in the pancreatic tail (60 %). Extra-pancreatic invasion or distant metastasis was not found at the initial operation in all five cases. A pyloruspreserving pancreaticoduodenectomy (n=1) and a mass enucleation (n=1) were performed in two patients of pancreatic head tumors. For three cases of tumors in pancreatic tail, distal pancreatectomy (n=2) and combined distal pancreatectomy and splenectomy (n=1) were performed. The median follow-up period was 60 months(12-117month). During the follow-up period, there was no local recurrence, nor distant metastasis. Postoperative adjuvant chemotherapy or radiotherapy was not carried out. All five children were alive during the follow up period without any evidence of disease relapse. SPT of the pancreas in childhood has good prognosis and surgical resection of the tumor is usually curative.