An immunohistochemical and genetic study of BRAFV600E mutation in Japanese patients with ameloblastoma.

abstract：:We report a case of intrarenal teratoma in a 6-year-old boy. Two years before his operation, multicystic masses had been found in the left side of his abdomen. In the operation, three main cystic masses were located in the upper and lower poles of the left kidney, which were removed in pieces. Histologically, the cyst...

journal_title：Pathology international

authors： Otani M,Tsujimoto S,Miura M,Nagashima Y

更新日期：2001-07-01 00:00:00

abstract：:Perivascular epithelioid cell tumor (PEComa) is a rare mesenchymal neoplasm, and malignant cases are extremely rare. A case of malignant PEComa arising in the colon is described herein. The patient was a 43-year-old Japanese woman without a history of tuberous sclerosis complex. The tumor occurred in the abdominal cav...

journal_title：Pathology international

authors： Yamamoto H,Oda Y,Yao T,Oiwa T,Kobayashi C,Tamiya S,Kawaguchi K,Hino O,Tsuneyoshi M

更新日期：2006-01-01 00:00:00

abstract：:Herein is presented a case of carcinosarcoma of the pancreas in an 82-year-old woman, analyzed on immunohistochemistry and K-ras sequence. The tumor, which arose in the pancreas head, was removed on pancreaticoduodenectomy. The patient died, however, of disseminated intravascular coagulation syndrome from postoperativ...

journal_title：Pathology international

authors： Nakano T,Sonobe H,Usui T,Yamanaka K,Ishizuka T,Nishimura E,Hanazaki K

更新日期：2008-10-01 00:00:00

abstract：:A 7-year-old boy presented with midline swelling in the neck. On fine-needle aspiration cytology it was diagnosed as papillary carcinoma of the thyroid. The patient underwent total thyroidectomy. Histopathological examination, immunohistochemistry and electron microscopy revealed the presence of two intermingled compo...

journal_title：Pathology international

authors： Goyal R,Nada R,Rao KL,Radotra BD

更新日期：2006-02-01 00:00:00

abstract：:A very rare case of a double cancer consisting of adenosquamous and hepatocellular carcinomas of the liver in a 65-year-old-man is discussed. The patient was hospitalized with epigastralgia in May 1997. Abdominal computed axial tomography revealed a tumor located in the left lobe of the liver and a left hepatic lobect...

journal_title：Pathology international

authors： Zhang Z,Nonaka H,Nagayama T,Hatori T,Ihara F,Zhang L,Akima M,Shiba T

更新日期：2001-12-01 00:00:00

abstract：:An unusual case of adenoid cystic carcinoma arising from the palatal minor salivary gland in a 63-year-old Japanese female is reported. In addition to the characteristic histopathologic features of adenoid cystic carcinoma, spindle- and dendritic-shaped cells containing excessive amounts of melanin pigment were densel...

journal_title：Pathology international

authors： Takeda Y

更新日期：1996-06-01 00:00:00

abstract：:A case of primary esophageal adenocarcinoma in a 64-year-old man is reported. An ulcerating tumor was located in the middle intrathoracic esophagus. Histopathological examination revealed a moderately differentiated adenocarcinoma, which had invaded down to the adventitia. The cancerous tubuli were lined by flattened ...

journal_title：Pathology international

authors： Endoh Y,Miyawaki M,Tamura G,Watanabe H,Motoyama T

更新日期：1999-02-01 00:00:00

abstract：:Soft-tissue sarcomas can be divided into translocation-associated (TA) and non-TA sarcomas, the latter of which is often characterized by pleomorphic cytomorphology and aneuploidy. The aberrant expression of MAD2, an essential component of the mitotic spindle checkpoint, has been recently shown to promote aneuploidy. ...

journal_title：Pathology international

authors： Hisaoka M,Matsuyama A,Hashimoto H

更新日期：2008-06-01 00:00:00

abstract：:Osteosarcoma is one of the neoplasms that may occur following exposure to radiation. A case of osteosarcoma arising in the craniofacial bone with a short latency period of 3 years after radiotherapy for maxillary squamous cell carcinoma is described. A 64-year-old-man underwent right partial maxillectomy and chemoradi...

journal_title：Pathology international

authors： Matsuyama A,Yonemitsu N,Hayashida S,Watanabe K,Sugihara H,Inokuchi A

更新日期：2003-01-01 00:00:00

abstract：:We describe a case of minute pancreatic ductal adenocarcinoma featuring stenosis of the main pancreatic duct (MPD) and associated with histological findings of periductal elastosis and fibroblast proliferation. A 53-year-old Japanese man with preoperative radiological evidence of MPD stricture and dilation of the dist...

journal_title：Pathology international

authors： Yachida S,Fukushima N,Nakanishi K,Shimada K,Kosuge T,Sakamoto M

更新日期：2002-09-01 00:00:00

abstract：:A case of primary small cell (oat cell) carcinoma of the breast in a 41-year-old woman is presented. The patient was alive and well without disease 16 months after modified radical mastectomy and subsequent chemotherapy. The tumor cells revealed morphologic similarity to oat cell carcinoma of the lung and immunohistoc...

journal_title：Pathology international

authors： Yamasaki T,Shimazaki H,Aida S,Tamai S,Tamaki K,Hiraide H,Mochizuki H,Matsubara O

更新日期：2000-11-01 00:00:00

abstract：:Eosinophilic hyaline inclusions were consistently seen in the perinuclear cytoplasm of suprabasal keratinocytes in lichen amyloidosus. The inclusions, negative with amyloid staining, were immunoreactive for ubiquitin and cytokeratin, and ultrastructurally showed aggregations of fine filaments of two sizes (central thi...

journal_title：Pathology international

authors： Akamatsu M,Hori S,Tsutsumi Y,Osamura RY,Ohkido M

更新日期：1995-02-01 00:00:00

abstract：:Epstein-Barr (EB) virus-associated primary smooth muscle tumors have been reported in immunosuppressed young patients with acquired immunodeficiency syndrome (AIDS) and young people who have undergone liver transplantation. An autopsy case of EB virus-associated smooth muscle cell tumor in a 21 year old female who rec...

journal_title：Pathology international

authors： Sadahira Y,Moriya T,Shirabe T,Matsuno T,Manabe T

更新日期：1996-08-01 00:00:00

abstract：:For the detection of chromosome translocations/chimeric genes and specific genetic abnormalities in soft tissue tumors, we conducted fluorescence in situ hybridization (FISH) analysis on 280 cases of soft tissue and other tumors using formalin-fixed paraffin-embedded tissue sections. The detection rate of the FISH spl...

journal_title：Pathology international

authors： Miura Y,Keira Y,Ogino J,Nakanishi K,Noguchi H,Inoue T,Hasegawa T

更新日期：2012-01-01 00:00:00

abstract：:The present study attempted to clarify the significance of aberrant expression of beta-catenin protein and mutation of exon 3 of the beta-catenin gene in renal and urothelial carcinogenesis. beta-Catenin expression was examined immunohistochemically and mutation of the beta-catenin gene was analyzed by polymerase chai...

journal_title：Pathology international

authors： Zhu X,Kanai Y,Saito A,Kondo Y,Hirohashi S

更新日期：2000-12-01 00:00:00

abstract：:We report 17 cases of the classic type of Kaposi's sarcoma in Xinjiang, which is located in the north-western area of China surrounded by Mongolia in the east, Russia in the north and Kazakhstan in the west. Fifteen of the patients were of the Uygur people. All patients were male and did not have acquired immunodefici...

journal_title：Pathology international

authors： Dilnur P,Katano H,Wang ZH,Osakabe Y,Kudo M,Sata T,Ebihara Y

更新日期：2001-11-01 00:00:00

abstract：:The protective effect of Brazilian propolis and its extract Artepillin C against ferric nitrilotriacetate (Fe-NTA)-induced renal lipid peroxidation and carcinogenesis was studied in male ddY mice. Fe-NTA-induced renal lipid peroxidation leads to a high incidence of renal cell carcinoma (RCC) in mice. Administration of...

journal_title：Pathology international

authors： Kimoto T,Koya S,Hino K,Yamamoto Y,Nomura Y,Micallef MJ,Hanaya T,Arai S,Ikeda M,Kurimoto M

更新日期：2000-09-01 00:00:00

abstract：:Pulmonary tumor thrombotic microangiopathy (PTTM) is a rare clinicopathological entity causing severe pulmonary hypertension. Its histological features include widespread tumor emboli along with fibrocellular intimal proliferation and thrombus formation in the small arteries and arterioles of the lungs. The result is ...

journal_title：Pathology international

authors： Chinen K,Kazumoto T,Ohkura Y,Matsubara O,Tsuchiya E

更新日期：2005-01-01 00:00:00

abstract：:The incidence of lymphoma has rapidly increased over the last 40 years in Japan, following a trend that is very similar to that of breast cancer. In particular, the relative frequency of follicular lymphoma (FL) has reached that in Western countries. Given its indolence, a "watch-and-wait" approach is often applied to...

journal_title：Pathology international

authors： Yoshino T,Takata K,Tanaka T,Sato Y,Tari A,Okada H

更新日期：2018-12-01 00:00:00

abstract：:An autopsy case of malignant mesothelioma with asbestosis caused by asbestos exposure for 17 years is reported. Autopsy revealed that mesothelioma spread extensively in all serosal tissues including pleura, pericardium, diaphragm, peritoneum and tunica vaginalis testis. Histopathologically, most of the tumor showed an...

journal_title：Pathology international

authors： Watanabe M,Kimura N,Kato M,Iwami D,Takahashi M,Nagura H

更新日期：1994-10-01 00:00:00

abstract：:Reported herein is an unusual case of prostatic phyllodes tumor with exuberant glandular hyperplasia that led to misdiagnosis of adenocarcinoma. The tumor was detected in a 52-year-old man who had a 1 year history of dysuria. Adenocarcinoma of the prostate was diagnosed from a needle biopsy specimen. The patient recei...

journal_title：Pathology international

authors： Morikawa T,Nagata M,Tomita K,Kitamura T,Goto A,Chong JM,Fukayama M

更新日期：2006-03-01 00:00:00

abstract：:Pulmonary papillary adenoma is a rare tumor. We analyzed a tumor which appeared in a 16-year-old Japanese woman. The tumor histologically showed papillary proliferation of one-layered tumor cells coating inflammatory fibrovascular cores. At the periphery of the tumor, the tumor cells grew in a lepidic fashion. The tum...

journal_title：Pathology international

authors： Masunaga A,Nagashio R,Iwamoto S,Takeyama N,Sato Y,Miyazaki A,Mitsuya T

更新日期：2012-09-01 00:00:00

abstract：:The CDKN2 gene encodes two structurally different proteins: a cyclin-dependent kinase inhibitor, p16, which regulates retinoblastoma protein (pRb)-dependent G1 arrest, and a cell cycle inhibitor, p14ARF, which blocks MDM2-induced p53 degradation resulting in an increase in p53 levels that leads to cell cycle arrest. R...

journal_title：Pathology international

authors： Sano T,Masuda N,Oyama T,Nakajima T

更新日期：2002-05-01 00:00:00

abstract：:A 79-year-old man presented with back pain. Chest CT scan showed elevated nodular lesions in the right parietal pleurae with pleural effusion. There were no intrapulmonary or mediastinal abnormalities. Under local anesthesia, right thoracoscopy and subsequent thoracoscopic pleural resection were performed using an ins...

journal_title：Pathology international

authors： Kawahara K,Sasada S,Nagano T,Suzuki H,Kobayashi M,Matsui K,Takata K,Yoshino T,Michida T,Iwasaki T

更新日期：2008-04-01 00:00:00

abstract：:Hereditary leiomyomatosis and renal cell cancer (HLRCC) is a rare genetic disorder characterized by cutaneous and uterine leiomyomatosis with RCC. This disorder is caused by a germline mutation in the fumarate hydratase (FH) gene, which encodes an important enzyme of the tricarboxylic acid (TCA) cycle. This mutation d...

journal_title：Pathology international

authors： Matsumoto K,Udaka N,Hasumi H,Nakaigawa N,Nagashima Y,Tanaka R,Kato I,Yao M,Furuya M

更新日期：2018-05-24 00:00:00

abstract：:Two cases of carcinosarcoma of the esophagus are reported. Both were polypoid tumors occurring in the middle of the intrathoracic esophagus. The tumors were predominantly composed of spindle-shaped sarcoma cells with some squamous cell carcinomas (SCC). One tumor showed many bizarre giant cells with filamentous materi...

journal_title：Pathology international

authors： Taniyama K,Sasaki N,Mukai T,Uemura N,Miyoshi N,Nakai H,Nakayama H,Tahara E

更新日期：1995-04-01 00:00:00

abstract：:Infantile myofibromatosis (IM) is a rare disorder present at birth or in early infancy with a biphasic histological pattern. We present a neonatal-onset case of generalized IM with visceral (central nervous system, heart, lungs, liver, spleen, small intestine, kidneys and bones) and placental involvement, showing a mo...

journal_title：Pathology international

authors： Iwafuchi H,Tsuzuki T,Ito R,Miyake H,Okita H,Hamazaki M

更新日期：2015-08-01 00:00:00

abstract：:A case of renal adenomatosis of the left kidney associated with a carcinoma of the ipsilateral ureter in a 49-year-old man is examined. One hundred and eight adenomas, which were smaller than 15 mm in diameter, and a single microcarcinoma, which measured 1 mm in diameter, were found in the kidney. Further, there were ...

journal_title：Pathology international

authors： Kizaki T,Ugai K,Hirano H,Gohji K,Fujii A

更新日期：1999-03-01 00:00:00

abstract：:Under the condition of obvious iron-overload, there is a zonal hemosiderin (iron) deposition in hepatic lobules. The deposition is heaviest in the periportal (zone 1) and lightest in the perivenous (zone 3) hepatocytes. However, the mechanism for this pattern of iron deposition is obscure. Hepatic tissues from control...

journal_title：Pathology international

authors： Lu JP,Hayashi K

更新日期：1995-03-01 00:00:00

abstract：:The etiological role of human papillomavirus (HPV) in esophageal carcinoma (EC) in relation to p53, mdm2, p21(waf), c-erbB2 and the overall survival (OS) rate was investigated. Tumor and normal tissues from 50 EC were evaluated by polymerase chain reaction and InnoLiPA for HPV. Single strand conformation polymorphism/...

journal_title：Pathology international

authors： Bahnassy AA,Zekri AR,Abdallah S,El-Shehaby AM,Sherif GM

更新日期：2005-02-01 00:00:00