Cystic mesothelioma of the peritoneum
Autor: | Chikara Kunizaki, Yoshihiro Moriwaki, Chitaka Kasaoka, Yasuhiro Kido, Shinsuke Imai, Shunsuke Kobayashi, Hirofumi Harada, Makoto Masumura |
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Rok vydání: | 1996 |
Předmět: |
medicine.medical_specialty
Adolescent Lumen (anatomy) Hemangioma Peritoneum Lymphangioma medicine Humans Cyst Peritoneal Neoplasms medicine.diagnostic_test business.industry Gastroenterology Angiography Magnetic resonance imaging Mesothelioma Cystic medicine.disease Magnetic Resonance Imaging medicine.anatomical_structure Abdominal ultrasonography Female Radiology business Tomography X-Ray Computed Abdominal surgery Follow-Up Studies |
Zdroj: | Journal of gastroenterology. 31(6) |
ISSN: | 0944-1174 |
Popis: | We report a case of cystic mesothelioma of the peritoneum (CMP), a rare tumor. The magnetic resonance imaging (MRI) findings and the histochemical features were studied. The patient was an 18-year-old women who presented with upper abdominal pain. Abdominal ultrasonography and computed tomography showed a well defined cystic mass with a solid papillary projection in its lumen. MRI of the cyst showed high intensity on T2- and proton weighted images and low intensity on T1-weighted images, and the solid projection showed low intensity on T2- and proton-weighted images and slight low intensity on T1-weighted images, on which it was well enhanced. The lesion was suspected to be a benign cyst, such as a hemangioma, lymphangioma, or a splenic or pancreatic cyst. Complete surgical resection was performed. The resected specimen consisted of a unilocular cystic mass, with a solid projection, weighing 260 g and measuring 10 cm in diameter. The final diagnosis, arrived at by histopathological examination, was low-grade malignant CMP. The tumor cells were strongly positive for keratin, weakly positive for vimentin, and negative for epithelial membranous antigen. The patient is now well and symptom-free with no recurrence 19 months after operation. CMP is a rare tumor; only 12 cases have previously been reported in Japan. |
Databáze: | OpenAIRE |
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