1.Primary Retroperitoneal Mucinous Cystadenocarcinoma: A Case Report and Review of the Literature.
Sun Ah LEE ; Sung Hwa BAE ; Hun Mo RYOO ; Hyun Young JUNG ; Saet Byul JANG ; Yoon Seup KUM
The Korean Journal of Internal Medicine 2007;22(4):287-291
Primary retroperitoneal mucinous cystadenocarcinoma is a rare tumor. Only about 30 such cases have been reported in the worldwide literature, and a few Korean cases have been reported. The pathogenesis is not clear, and coelomic metaplasia of the retroperitoneal mesothelium has gained wide support. There is no consensus on the appropriate treatment, but surgical exploration is needed for the diagnosis and treatment, and adjuvant chemotherapy may be recommended following complete surgical excision. The long-term prognosis has not been established. We report here on a 32-year-old woman who was diagnosed as having a retroperitoneal mucinous cystadenocarcinoma with mural nodules of sarcomatoid change. Tumor excision and adjuvant chemotherapy were done and the patient is doing well without any evidence of recurrence at 42 months postoperatively.
Adult
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Cystadenocarcinoma, Mucinous/*diagnosis/pathology/surgery
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Female
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Humans
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Retroperitoneal Neoplasms/*diagnosis/pathology/surgery
2.Retroperitoneal teratoma with predominance of nephroblastic elements: a case report.
Youn Wha KIM ; Yong Koo PARK ; Soo Myung OH ; Moon Ho YANG
Journal of Korean Medical Science 1990;5(4):237-242
The morphological features of a retroperitoneal teratoma in a 10-month-old girl are reported. Unlike the usual pattern of the teratoma, this tumor was composed predominantly of nephroblastomatous tissue. Histologically, glomeruloid and tubular structures were identified in nests of undifferentiated blastemal elements. Hyaline cartilage, adipose tissue, glial tissue and glands lined by mucin-secreting columnar epithelium were minor elements. A focal cystic structure lined by thin flattened epithelium was also noted. Retroperitoneal teratoma with predominance of nephroblastic elements is of interest not only because of its rarity but also because it needs to be differentiated from extrarenal Wilms' tumor, since both of these tumors have different origins.
Diagnosis, Differential
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Female
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Humans
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Infant, Newborn
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Kidney Neoplasms/*pathology
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Magnetic Resonance Imaging
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Retroperitoneal Neoplasms/drug therapy/*pathology/surgery
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Teratoma/drug therapy/*pathology/surgery
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Wilms Tumor/*pathology
3.Celomic and retroperitoneal lipoleiomyosarcoma: report of a case.
Xiu-zhen LI ; Hong-quan WEI ; Bai-zhou LI
Chinese Journal of Pathology 2011;40(5):343-344
Abdominal Neoplasms
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metabolism
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pathology
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surgery
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Actins
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metabolism
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Angiomyolipoma
;
metabolism
;
pathology
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Desmin
;
metabolism
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Diagnosis, Differential
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Humans
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Leiomyosarcoma
;
metabolism
;
pathology
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surgery
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Liposarcoma
;
metabolism
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pathology
;
surgery
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Male
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Middle Aged
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Neoplasms, Multiple Primary
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metabolism
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pathology
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surgery
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Retroperitoneal Neoplasms
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metabolism
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pathology
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surgery
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S100 Proteins
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metabolism
4.A Case of a Retroperitoneal Schwannoma Presenting as Hypermetabolic Mass in PET-CT.
Pyung Gohn GOH ; Kwang Hun KO ; Eui Sik KIM ; Yun Jeung KIM ; Soo Youn LEE ; Hee Seok MOON ; Hyun Yong JEONG
The Korean Journal of Gastroenterology 2011;57(5):323-326
Schwannoma is a benign neoplasm of the Schwann cells of the neural sheath. Most schwannomas occur in the head and neck, and extremities and rarely in the retroperitoneal space. The differentiation of a schwannoma from other malignant tumor or benign tumor is very difficult on a preoperative examination with ultrasonography, computed tomography or magnetic resonance imaging. Furthermore, the lesion with increased fluorodeoxyglucose uptake in PET-CT cannot exclude malignant tumor. Therefore, this lesion needs surgical excision and a histological examination with immunohistochemical staining. We report a case of schwannoma occuring in the retroperitoneal space that incidentally discovered by PET-CT for health-check up. Pathologic confirmation by laparoscopic excision was done.
Aged
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Diagnosis, Differential
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Fluorodeoxyglucose F18/diagnostic use
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Humans
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Male
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Neurilemmoma/*diagnosis/pathology/surgery
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Positron-Emission Tomography
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Retroperitoneal Neoplasms/*diagnosis/pathology/surgery
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Tomography, X-Ray Computed
5.Recurrent Retroperitoneal Cystic Lymphangioma.
Huseyin OZDEMIR ; Ercan KOCAKOC ; Zulkif BOZGEYIK ; Bengu COBANOGLU
Yonsei Medical Journal 2005;46(5):715-718
Retroperitoneal cystic lymphangioma is a rare congenital malformation. The majority of lymphangiomas are present at birth and nearly all present before the age of two years. We report a case of giant cystic retroperitoneal lymphangioma in a patient who first presented with symptoms at the age of 7, underwent surgery, and who then suffered a recurrent mass 11 years later.
Tomography, X-Ray Computed
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Retroperitoneal Neoplasms/*diagnosis/pathology/surgery
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Recurrence
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Male
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Magnetic Resonance Imaging
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Lymphangioma, Cystic/*diagnosis/pathology/surgery
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Humans
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Adolescent
6.A Case of Primary Retroperitoneal Mucinous Cystadenoma Arising from the Retropancreatic Area.
Yoon Jeong NAM ; Tae Nyeun KIM ; Kook Hyun KIM ; Min Geun GU ; Jae Young LEE
The Korean Journal of Gastroenterology 2014;63(3):187-190
Primary retroperitoneal mucinous cystadenoma is an extremely uncommon tumor, even though mucinous cystadenoma often develops in the ovary and less frequently in the pancreas. A 21-year-old female was admitted to our hospital due to severe abdominal pain. A well-demarcated, oval shaped cystic tumor at the retropancreatic area with displacement of the pancreas and surrounding major vessels was observed on CT and MRI. Exploratory laparotomy was performed, and complete excision of the entire cyst was performed without complication. The pathologic finding was consistent with primary retropancreatic mucinous cystadenoma. To the best of our knowledge, this report is the first to describe a case of retropancreatic mucinous cystadenoma arising from the retropancreatic area in Korea.
Antibodies/metabolism
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Cystadenoma, Mucinous/*diagnosis/pathology/surgery
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Female
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Humans
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Magnetic Resonance Imaging
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Mucin 5AC/immunology
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Mucin-2/immunology
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Ovarian Neoplasms/*diagnosis/pathology/surgery
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Retroperitoneal Neoplasms/*diagnosis/pathology/surgery
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Tomography, X-Ray Computed
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Young Adult
7.Malignant Solitary Fibrous Tumor of Retroperitoneum Mimicking Gastric Submucosal Tumor.
Jung Min BAE ; Se Won KIM ; Sang Woon KIM ; Sun Kyo SONG
The Korean Journal of Gastroenterology 2011;57(1):47-50
Solitary fibrous tumors (SFTs) are an uncommon neoplasm characterized by the proliferation of spindle cells. The diagnostic criteria of malignant solitary fibrous tumors (MSFTs) include high cellularity, high mitotic activity (4>10 HPF), pleomorphism, hemorrhage and necrosis. This tumor frequently involves the pleura and MSFTs of retroperitoneum mimicking gastric submucosal tumor are very rare. We report a rare case of MSFT that presented as a gastric submucosal tumor. A gastroscopic examination showed a large bulging mucosa in the gastric body. Abdominal computed tomography revealed a well-defined heterogeneous enhancing mass between the left hepatic lobe and gastric body. Surgical resection was performed and histologic features were consistent with a MSFT.
Antigens, CD34/metabolism
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Gastroscopy
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Humans
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Male
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Middle Aged
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Proto-Oncogene Proteins c-bcl-2/metabolism
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Retroperitoneal Neoplasms/*diagnosis/pathology/surgery
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Solitary Fibrous Tumors/*diagnosis/pathology/surgery
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Stomach Neoplasms/diagnosis
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Tomography, X-Ray Computed
8.Metastatic bladder cancer presenting as duodenal obstruction.
Katherine HAWTIN ; Alex KENT ; Carole COLLINS ; Dominic BLUNT
Annals of the Academy of Medicine, Singapore 2009;38(10):914-912
INTRODUCTIONBladder cancer is a common malignancy but presentation with metastatic disease is rare. This is the fi rst reported case of duodenal obstruction as a presentation of metastatic bladder cancer.
CLINICAL PICTUREA middle-aged woman presented with nausea, vomiting, weight loss and intermittent haematuria. Radiology and histology confirmed metastatic bladder cancer to the retroperitoneum encasing the duodenum and causing obstruction.
TREATMENTInsertion of a duodenal stent relieved the obstruction and palliative chemoradiotherapy was initiated.
OUTCOMEThe patient died 15 months after diagnosis.
CONCLUSIONSClinicians and radiologists should be aware of atypical presentations of common malignancies.
Adult ; Carcinoma, Transitional Cell ; drug therapy ; secondary ; Diagnosis, Differential ; Duodenal Obstruction ; diagnosis ; etiology ; surgery ; Fatal Outcome ; Female ; Humans ; Palliative Care ; Retroperitoneal Neoplasms ; complications ; diagnosis ; secondary ; Stents ; Urinary Bladder Neoplasms ; drug therapy ; pathology
10.Primary Extraskeletal Mesenchymal Chondrosarcoma Arising from the Pancreas.
Bae Geun OH ; Yoon Hee HAN ; Byung Hoon LEE ; Su Young KIM ; Yoon Joon HWANG ; Jung Wook SEO ; Yong Hoon KIM ; Soon Joo CHA ; Gham HUR ; Mee JOO
Korean Journal of Radiology 2007;8(6):541-544
We report here on a case of primary extraskeletal mesenchymal chondrosarcoma that arose from the pancreas. A 41-year-old man was evaluated by CT to find the cause of his abdominal pain. The CT scans showed a heterogeneously enhancing necrotic mass with numerous areas of coarse calcification, and this was located in the left side of the retroperitoneal space and involved the body and tail of the pancreas. Portal venography via the celiac axis also showed invasion of the splenic vein. Following excision of the mass, it was pathologically confirmed to be primary extraskeletal mesenchymal chondrosarcoma that arose from the pancreas.
Abdominal Pain/etiology
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Adult
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Chondrosarcoma, Mesenchymal/complications/*diagnosis/surgery
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Contrast Media/administration & dosage
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Diagnosis, Differential
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Humans
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Iohexol/analogs & derivatives/diagnostic use
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Male
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Necrosis
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Pancreas/pathology/radiography
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Pancreatic Neoplasms/complications/*diagnosis/surgery
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Portal Vein/radiography
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Radiographic Image Enhancement/methods
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Rare Diseases
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Retroperitoneal Space/radiography
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Splenic Vein/radiography
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Tomography, X-Ray Computed/methods