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Pathology International

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https://www.readbyqxmd.com/read/28799264/correlation-of-lanthanum-dosage-with-lanthanum-deposition-in-the-gastroduodenal-mucosa-of-dialysis-patients
#1
Kimiaki Hattori, Tamaki Maeda, Shinya Nishida, Miyuki Imanishi, Masahiro Sakaguchi, Yoshifumi Amari, Takuya Moriya, Yoshinobu Hirose
Lanthanum (La) deposition has been observed in gastrointestinal mucosa of dialysis patients treated with La carbonate to treat hyperphosphatemia in the 6 years since its authorization in Japan. We investigated gastrointestinal biopsies from 112 dialysis patients, and found 15 cases of histiocytic aggregation with crystalloids and one case of duodenitis with histiocyte aggregation without crystalloids in the 30 patients treated with La carbonate. No histiocytic lesions were observed in the 82 patients without La carbonate administration...
August 11, 2017: Pathology International
https://www.readbyqxmd.com/read/28759137/soft-tissue-sarcomas-from-a-morphological-to-a-molecular-biological-approach
#2
REVIEW
Yoshinao Oda, Hidetaka Yamamoto, Kenichi Kohashi, Yuichi Yamada, Kunio Iura, Takeaki Ishii, Akira Maekawa, Hirofumi Bekki
Recently developed molecular genetic techniques have led to the elucidation of tumor-specific genomic alterations and thereby the reclassification of tumor entities of soft tissue sarcoma. A solitary fibrous tumor-mimicking tumor with the AHRR-NCOA2 gene has been isolated as angiofibroma of soft tissue. As for small round cell sarcomas, novel fusion genes such as CIC-DUX4 and BCOR-CCNB3 have been identified in these tumor groups. SMARCB1/INI1 deficient tumors with round cell morphology are also expected to be reclassified in three types, based on the combination of their morphology and genotype...
July 31, 2017: Pathology International
https://www.readbyqxmd.com/read/28735509/diagnostic-utility-of-automated-surefish-dako-omnis-in-the-diagnosis-of-musculoskeletal-translocation-related-sarcomas
#3
Shintaro Sugita, Tomoyuki Aoyama, Yoshimasa Ito, Hiroko Asanuma, Taro Sugawara, Keiko Segawa, Yumika Ito, Noriaki Kikuchi, Mitsuhiro Tsujiwaki, Hiromi Fujita, Yusuke Ono, Tadashi Hasegawa
Fluorescence in situ hybridization (FISH) is an essential tool for genetic diagnosis in daily pathological work. Almost full automation of FISH can be achieved with the recently released automated SureFISH platform (Dako Omnis, Agilent Technologies, Santa Clara, CA, USA). Its utility has been reported in HER2 amplification of breast and gastric carcinoma and ALK-rearranged lung cancer. Here, we examined the utility of automated SureFISH for the identification of rearrangement signals in translocation-related sarcomas (TRSs), including 11 EWSR1-rearranged and 10 synovial sarcoma cases, compared with non-automated conventional FISH using the same specimens...
July 22, 2017: Pathology International
https://www.readbyqxmd.com/read/28712115/expression-of-interferon-regulatory-factor-7-correlates-with-the-expression-of-epstein-barr-virus-latent-membrane-protein-1-and-cervical-lymph-node-metastasis-in-nasopharyngeal-cancer
#4
Satoru Kondo, Kazuhira Endo, Naohiro Wakisaka, Mitsuharu Aga, Makoto Kano, Noriko Seishima, Tomoko Imoto, Eiji Kobayashi, Makiko Moriyama-Kita, Yosuke Nakanishi, Shigeyuki Murono, Joseph S Pagano, Tomokazu Yoshizaki
Interferon regulatory factor 7 (IRF7) has oncogenic properties in several malignancies such as Epstein-Barr virus (EBV)-associated lymphoma. However, there is no evidence whether IRF7 is associated with the oncogenesis of nasopharyngeal cancer (NPC), the pathogenesis of which is closely associated with EBV. Herein, we report that expression of IRF7 was increased in normal nasopharyngeal cells that expressed the EBV principal oncoprotein, latent membrane protein 1 (LMP1). In addition, IRF7 was mainly expressed in the nucleus in both normal nasopharyngeal cells and nasopharyngeal cancer cells that expresses LMP1...
July 16, 2017: Pathology International
https://www.readbyqxmd.com/read/28699235/expression-patterns-of-claudins-in-patients-with-triple-negative-breast-cancer-are-associated-with-nodal-metastasis-and-worse-outcome
#5
Ayaka Katayama, Tadashi Handa, Kei Komatsu, Maria Togo, Jun Horiguchi, Masahiko Nishiyama, Tetsunari Oyama
Claudins (CLDNs) are key cell adhesion molecules, which compose tight junctions (TJs), and the disruption of TJs is associated with cancer development. Here we immunohistochemically studied expression patterns of CLDNs in 222 primary invasive breast cancers including 68 triple-negative breast cancers (TNBCs), and examined their correlation with epithelial-to-mesenchymal transition (EMT)-related markers, breast cancer stem cell (BCSC) markers, and clinicopathological features including patients' clinical outcome...
July 11, 2017: Pathology International
https://www.readbyqxmd.com/read/28691258/differences-between-gastric-signet-ring-cell-carcinoma-and-poorly-differentiated-adenocarcinoma-a-comparison-of-histopathologic-features-determined-by-mucin-core-protein-and-trefoil-factor-family-peptide-immunohistochemistry
#6
Ai Fujimoto, Yukio Ishikawa, Toshiharu Ishii, Akihiro Yamada, Yoshinori Igarashi, Yasukazu Ohmoto, Mitsuru Kaise
We investigated differences between the pathological features of gastric signet-ring cell carcinoma (sig) and poorly differentiated adenocarcinoma (por) by examining the expressions of the trefoil factor family peptides (TFFs) and mucin core proteins (MUCs). Ninety-seven tissues of 97 gastric cancer patients were selected for this study. After gastrectomy, the major histopathologic types were determined to be sig, solid-type poorly differentiated adenocarcinoma (por1), non-solid type poorly differentiated adenocarcinoma (por2), and well-differentiated tubular adenocarcinoma (tub1)...
July 9, 2017: Pathology International
https://www.readbyqxmd.com/read/28678431/epithelial-to-mesenchymal-transition-and-its-role-in-egfr-mutant-lung-adenocarcinoma-and-idiopathic-pulmonary-fibrosis
#7
REVIEW
Yuji Sakuma
Lung adenocarcinoma cells with activating epidermal growth factor receptor (EGFR) mutations are highly dependent upon EGFR signaling for survival and undergo apoptosis when EGFR signaling is inhibited by tyrosine kinase inhibitor (TKI) treatment. Paradoxically, EGFR-mutant lung adenocarcinomas have subpopulations of cells that can survive independently of activated EGFR. Such EGFR-independent EGFR-mutant cancer cells include cells that have undergone epithelial-to-mesenchymal transition (EMT) or transformed to small cell lung cancer, which almost completely lack EGFR dependency...
July 5, 2017: Pathology International
https://www.readbyqxmd.com/read/28667706/an-autopsy-case-of-non-traumatic-fat-embolism-syndrome
#8
Mai Sakashita, Shingo Sakashita, Akiko Sakata, Noriko Uesugi, Kazunori Ishige, Ichinosuke Hyodo, Masayuki Noguchi
Fat embolism syndrome (FES) occurs after long bone fractures and the symptoms appear 24-72 h after the initial trauma. Fat emboli can affect both the pulmonary and systemic circulation. Apart from the most common type of FES that originates from bone fracture, non-traumatic FES has been also reported. We have experienced an autopsy case of non-traumatic FES. An 81-year-old man with hepatocellular carcinoma associated with alcoholic liver cirrhosis suddenly lost consciousness before transcatheter arterial chemoembolization treatment for his disease and died 5 h after the episode...
June 30, 2017: Pathology International
https://www.readbyqxmd.com/read/28667682/dedifferentiated-carcinoma-with-clear-cell-carcinoma-of-the-endometrium-a-case-report
#9
Seung Eun Lee, Ha Young Park, Seung-Hyuk Shim, Wook Youn Kim
Endometrial dedifferentiated carcinoma consists of a combination of undifferentiated and differentiated carcinomas. To date, clear cell carcinoma components in endometrial dedifferentiated carcinoma have not been reported. We report the first case of endometrial dedifferentiated carcinoma with clear cell carcinoma in a 58-year-old woman. The uterine corpus was completely replaced and enlarged by a heterogeneous mass. The endometrial cut surface showed a yellowish papillary growing mass involving endometrium and deeper myometrium...
June 30, 2017: Pathology International
https://www.readbyqxmd.com/read/28660726/gastric-lanthanosis-lanthanum-deposition-in-dialysis-patients-treated-with-lanthanum-carbonate
#10
Yuki Shitomi, Haruto Nishida, Takahiro Kusaba, Tsutomu Daa, Shinji Yano, Motoki Arakane, Yoshiyuki Kondo, Takayuki Nagai, Takashi Abe, Ayako Gamachi, Kazunari Murakami, Tsuyoshi Etoh, Norio Shiraishi, Masafumi Inomata, Shigeo Yokoyama
Lanthanum carbonate (LaC) is used to prevent hyperphosphatemia in dialysis patients. It is commonly believed that there is little LaC absorption from the intestines. However, La deposition in the gastric mucosa, which we coined "gastric lanthanosis", was recently reported. We describe here the clinicopathological features of and a possible mechanism for gastric lanthanosis. This study included 23 patients with definite gastric lanthanosis. We extracted characteristic clinicopathological features of gastric lanthanosis by computed tomography (CT) imaging and endoscopic, histologic, electron-microscopic, and element analysis examinations...
June 28, 2017: Pathology International
https://www.readbyqxmd.com/read/28653784/massive-tumor-embolism-in-the-abdominal-aorta-from-pulmonary-squamous-cell-carcinoma-case-report-and-review-of-the-literature
#11
Kenji Ohshima, Yuri Tsujii, Kazuya Sakai, Hiroshi Oku, Eiichi Morii
Acute arterial tumor embolism is a rare complication in cancer patients. Most of the previously reported cases of arterial tumor embolism have been associated with pulmonary malignancies and occurred during the intraoperative and postoperative periods. Very few cases occurred spontaneously. To our knowledge, there is no previous report of spontaneous and massive tumor embolism occluding the abdominal aorta in patients suffering from primary pulmonary carcinoma. We describe the case of 64-year-old man who presented with left homonymous hemianopsia and backache...
June 27, 2017: Pathology International
https://www.readbyqxmd.com/read/28618063/papillary-thyroid-carcinoma-expressing-cd20
#12
Yuya Sasaki, Masao Seto, Hiroaki Miyoshi, Shinya Okada, Shintaro Yokoyama, Akira Ohshima, Koichi Ohshima
We identified a case of lymphadenopathy of metastatic papillary thyroid carcinoma (PTC) with CD20 expression, which was also expressed by the primary tumor. CD20 expression was identified using immunohistochemistry (IHC) in metastatic PTC biopsy samples from a 58-year-old woman. CD20 expression was initially determined using a CD20-recognizing L26 clone. To validate this phenomenon, we performed IHC with another antibody that recognizes the N-terminus of CD20 and fluorescent double staining using anti-TTF-1 and anti-CD20 antibodies...
June 15, 2017: Pathology International
https://www.readbyqxmd.com/read/28603942/primary-hepatic-choriocarcinoma-in-an-83-year-old-woman
#13
Akihiko Fukagawa, Naoto Fujita, Kenji Ohira, Hajime Fujimoto, Nobuaki Goto, Akinori Nozawa
We present a case of primary hepatic choriocarcinoma in an 83-year-old Japanese woman with gastric wall and lymph node metastases and a splenic vein tumor thrombus. Multiple irregular hepatic tumors with massive necrosis and hemorrhage were observed during autopsy. Syncytiotrophoblast-like and mononucleated cytotrophoblast-like cell morphology with focal hepatocellular carcinoma (HCC)-like trabecular structures was observed. In immunohistochemical analyses, the tumor cells expressed human chorionic gonadotropin (hCG) and cytokeratins (AE1/AE3, CK7, CK19) but were negative for alpha-fetoprotein (AFP), glypican-3, and vimentin...
June 11, 2017: Pathology International
https://www.readbyqxmd.com/read/28590047/cytopathologic-findings-of-cell-block-materials-from-the-vitreous-diagnostic-distinction-between-intraocular-lymphoma-and-non-lymphomatous-diseases
#14
Hiromi Kanno-Okada, Emi Takakuwa, Yoshiaki Tagawa, Satoru Kase, Kanako C Hatanaka, Yutaka Hatanaka, Kenichi Namba, Tomoko Mitsuhashi, Yoshihiro Matsuno
Intraocular lymphoma is a rare neoplasm that occurs only in the eyes and/or central nervous system. Diagnosis of intraocular lymphoma is difficult because its clinical manifestations mimic chronic uveitis. Pathological examination of the vitreous is one of the main diagnostic tools for intraocular lymphoma, but this is challenging due to the sparse cellularity and specimen degeneration. Here, we reviewed 33 cell block preparations from vitreous perfusion fluid in order to examine the significance of cytopathological findings for differential diagnosis using vitreous samples...
June 7, 2017: Pathology International
https://www.readbyqxmd.com/read/28590017/fibrotic-focus-an-important-parameter-for-accurate-prediction-of-a-high-level-of-tumor-associated-macrophage-infiltration-in-invasive-ductal-carcinoma-of-the-breast
#15
Hiroko Shimada, Takahiro Hasebe, Michiko Sugiyama, Satomi Shibasaki, Ikuko Sugitani, Shigeto Ueda, Yoshiya Gotoh, Masanori Yasuda, Eiichi Arai, Akihiko Osaki, Toshiaki Saeki
Our group and others have previously reported that a fibrotic focus is a very useful histological factor for the accurate prediction of the outcome of patients with invasive ductal carcinoma of the breast. We classified 258 cases of invasive ductal carcinoma into those with and those without a fibrotic focus to investigate whether the presence of a fibrotic focus was significantly associated with the degree of tumor-associated macrophage (CD68, CD163 or CD204-positive) infiltration or whether the presence of tumor-associated macrophage infiltration heightened the malignant potential of invasive ductal carcinoma with a fibrotic focus...
June 7, 2017: Pathology International
https://www.readbyqxmd.com/read/28580649/myeloperoxidase-antineutrophil-cytoplasmic-antibody-causes-different-renal-diseases-by-immune-complex-formation-and-pauci-immune-mechanism-a-case-report
#16
Shun Manabe, Michiyasu Hatano, Marie Nakano, Teruhiro Fujii, Kosaku Nitta, Michio Nagata
Antineutrophil cytoplasmic antibody (ANCA) has been known to cause pauci-immune crescentic glomerulonephritis. In addition, several reports described membranous glomerulonephritis (MN) concurrent with ANCA-associated glomerulonephritis. Because the two glomerular diseases simultaneously appear in an ANCA-positive patient, the mechanisms whereby ANCA causes the two different glomerular diseases remain ambiguous. Herein, we report a case of 19-year-old man who presented with hematuria, pre-nephrotic proteinuria, and high titer of myeloperoxidase (MPO)-ANCA...
June 4, 2017: Pathology International
https://www.readbyqxmd.com/read/28569394/autopsy-case-of-systemic-ebv-positive-t-cell-lymphoma-of-childhood-with-marked-hepatomegaly-in-a-middle-aged-man
#17
LETTER
Keita Kai, Futa Koga, Norimasa Araki, Takero Shindo, Yuichiro Eguchi, Shuji Toda, Shinichi Aishima
No abstract text is available yet for this article.
June 1, 2017: Pathology International
https://www.readbyqxmd.com/read/28556347/a-case-of-ulcerative-colitis-with-squamous-cell-carcinomas-and-multiple-foci-of-squamous-dysplasia
#18
Yasuyuki Yokoyama, Ryuichi Wada, Takeshi Yamada, Eiji Uchida, Zenya Naito
Squamous cell carcinoma (SqCC) in ulcerative colitis (UC) is rare. A 38 year-old Japanese woman, who suffered from left-sided UC for 18 years, underwent total colectomy due to SqCCs in the rectum and the sigmoid colon. They were well differentiated SqCC, and metastasis was found in the paracolic lymph nodes. Multiple small foci of squamous dysplasia (SD) were noted in the rectal mucosa. Glandular dysplasia was not found. TP53 was not detected in SD. Approximately 40% of cells were immunostained with TP53 in SqCC, however no mutation was found in TP53 gene...
May 28, 2017: Pathology International
https://www.readbyqxmd.com/read/28670778/notice-to-contributors
#19
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Pathology International
https://www.readbyqxmd.com/read/28590021/glut-1-expression-of-pulmonary-mixed-squamous-cell-and-glandular-papilloma-may-be-associated-with-high-suvmax-on-fluorodeoxyglucose-positron-emission-tomography
#20
LETTER
Atsuko Masunaga, Takashi Oide, Toshiko Kamata, Eitetsu Kou, Yasuo Sekine, Kenzo Hiroshima
No abstract text is available yet for this article.
July 2017: Pathology International
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