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Pathology International

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https://www.readbyqxmd.com/read/29770587/an-unusual-case-of-pulmonary-hamartoma-with-predominant-bronchial-mucous-glands-in-the-peripheral-lung
#1
Rin Yamada, Akiko Tonooka, Shin-Ichiro Horiguchi, Toru Motoi, Horio Hirotoshi, Tsunekazu Hishima
Pulmonary hamartoma (PH) is the most common benign lung tumor, comprising various amounts of mescenchymal components with entrapped epithelial components. We describe an unusual case of PH in the left lower lung lobe of a 60-year-old female. The tumor was 9 × 9 mm in size, light brown, weakly glistening, and microscopically found to be composed of well-developed epithelial and mesenchymal components without atypia. Both components were intermingled but without apparent transition. Epithelial components were occupied by predominant bronchial mucous glands...
May 16, 2018: Pathology International
https://www.readbyqxmd.com/read/29749027/heterogeneous-distribution-of-glomerular-size-in-adult-kidneys-with-normal-renal-function
#2
LETTER
Yusuke Okabayashi, Go Kanzaki, Nobuo Tsuboi, Kotaro Haruhara, Kentaro Koike, Masahiro Ikegami, Akira Shimizu, Takashi Yokoo
No abstract text is available yet for this article.
May 10, 2018: Pathology International
https://www.readbyqxmd.com/read/29726062/expanded-acceptance-of-acute-exacerbation-of-nonspecific-interstitial-pneumonia-including-7-additional-cases-with-detailed-clinical-pathologic-correlation
#3
Atsushi Miyamoto, Amita Sharma, Michiya Nishino, Mari Mino-Kenudson, Osamu Matsubara, Eugene Jerome Mark
Acute exacerbation is uncommonly diagnosed in patients with nonspecific interstitial pneumonia (NSIP) and its pathologic features have received relatively little attention compared to idiopathic pulmonary fibrosis. We retrospectively studied 14 consecutive cases of histopathologically proven NSIP by surgical lung biopsy. The diagnosis of acute exacerbation was confirmed clinically. We analyzed whether four reported pathologic features, including organizing pneumonia lesion, alveolar hemorrhage, many fibroblastic foci, and focal hyaline membranes were present and suggestive of acute exacerbation of NSIP or not...
May 3, 2018: Pathology International
https://www.readbyqxmd.com/read/29722472/fulminant-group-a-streptococcal-infection-without-gangrene-in-the-extremities-analysis-of-five-autopsy-cases
#4
Shu Kato, Motoi Yanazaki, Kino Hayashi, Fumiko Satoh, Ichiro Isobe, Yutaka Tsutsumi
Five autopsy cases of fulminant group A streptococcal infection without gangrene in the extremities are presented. Clinical course of the fulminant illness was short (2-4 days). One pathological autopsy case was aged (86-years-old), and hemorrhagic cystitis was observed. The other four forensic autopsy cases were young (24-38 years-old) with the mean age of 32, and the primary infective lesions were located in the postpartum endometrium, tonsil and bronchus (2 cases). Systemic coccal dissemination with poor neutrophilic reaction was seen in two of five cases...
May 3, 2018: Pathology International
https://www.readbyqxmd.com/read/29696743/coexistence-of-glandular-papilloma-and-sclerosing-pneumocytoma-in-the-bronchiole
#5
Yuko Kitawaki, Fumiyoshi Fujishima, Shinji Taniuchi, Ryoko Saito, Yasuhiro Nakamura, Ryoko Sato, Yayoi Aoyama, Yoshiaki Onodera, Naoko Inoshita, Yasuchi Matsuda, Mika Watanabe, Hironobu Sasano
Both glandular papilloma (GP) and sclerosing pneumocytoma (SP) are rare tumors in the lung. We herein report an extremely rare case of coexistence of these two uncommon tumors. The patient was a 40-year-old Japanese woman with no chief complaint. A solitary nodule of the lung was detected using chest computed tomography. The transbronchial biopsy revealed that the tumor histologically corresponded to GP. The patient subsequently underwent partial resection of the right upper lobe. Histological examination of the resected specimens further revealed that the mass contained two different and independent elements and displayed typically histological features of GP and SP...
April 25, 2018: Pathology International
https://www.readbyqxmd.com/read/29675873/noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-niftp-in-thyroid-tumor-classification
#6
EDITORIAL
Kennichi Kakudo, Adel K El-Naggar, Steven P Hodak, Elham Khanafshar, Yuri E Nikiforov, Vania Nosé, Lester D R Thompson
No abstract text is available yet for this article.
April 19, 2018: Pathology International
https://www.readbyqxmd.com/read/29671927/acantholytic-squamous-cell-carcinoma-of-the-gallbladder-mimicking-adenocarcinoma
#7
LETTER
Kenji Yorita, Naoto Kuroda, Nobuyuki Tanida, Ai Kawada, Yoshitake Kitagawa
No abstract text is available yet for this article.
April 19, 2018: Pathology International
https://www.readbyqxmd.com/read/29671926/cancer-as-a-tissue-the-significance-of-cancer-stromal-interactions-in-the-development-morphogenesis-and-progression-of-human-upper-digestive-tract-cancer
#8
REVIEW
Hiroshi Yokozaki, Yu-Ichiro Koma, Manabu Shigeoka, Mari Nishio
We review the significance of cancer-stromal interactions (CSIs) in the development, morphogenesis and progression of human gastric and esophageal cancer based on the data obtained from co-culture experiments. Orthotopic fibroblasts in the gastric cancer stroma not only promoted their growth by cancer cells but were also responsible for the mobility, morphogenesis and epithelial-to-mesenchymal transition (EMT) of the cancer cells through CSI. Bone marrow-derived mesenchymal stem cells could be part of the origin of cancer-associated fibroblasts (CAFs) of the gastric cancer providing an advantageous microenvironment for the restoration of cancer stem cells with the induction of the EMT...
April 19, 2018: Pathology International
https://www.readbyqxmd.com/read/29671925/loss-of-swi-snf-complex-expression-in-undifferentiated-renal-carcinoma-in-acquired-cystic-kidney
#9
LETTER
Fumiyoshi Kojima, Yuko Ueda, Ibu Matsuzaki, Isao Hara, Shin-Ichi Murata
No abstract text is available yet for this article.
April 19, 2018: Pathology International
https://www.readbyqxmd.com/read/29664180/is-an-atypical-flat-lesion-afl-a-precursor-lesion-of-the-pancreatic-ductal-adenocarcinoma-in-human
#10
LETTER
Kohei Morita, Kumiko Mito, Toshiro Niki, Noriyoshi Fukushima
No abstract text is available yet for this article.
April 17, 2018: Pathology International
https://www.readbyqxmd.com/read/29655307/the-importance-of-melanoma-inhibitory-activity-gene-family-in-the-tumor-progression-of-oral-cancer
#11
REVIEW
Tomonori Sasahira, Anja Katrin Bosserhoff, Tadaaki Kirita
Oral squamous cell carcinoma has a high potential for locoregional invasion and nodal metastasis. Consequently, early detection of such malignancies is of immense importance. The melanoma inhibitory activity (MIA) gene family comprises MIA, MIA2, transport and Golgi organization protein 1 (TANGO), and otoraplin (OTOR). These members of the MIA gene family have a highly conserved Src homology 3 (SH3)-like structure. Although the molecules of this family share 34-45% amino acid homology and 47-59% cDNA sequence homology, those members, excluding OTOR, play different tumor-associated functions...
April 14, 2018: Pathology International
https://www.readbyqxmd.com/read/29633461/eosinophilia-in-the-muscle-layer-of-the-esophagus-and-the-urinary-bladder-in-a-multiple-system-atrophy-patient-with-dysphagia-and-dysuria
#12
Misa Song, Hayato Kimura, Hideharu Ogiyama, Takayuki Nishigami
Multiple system atrophy (MSA) is a spinocerebellar degenerative disease characterized by cerebellar ataxia, parkinsonism, and autonomic failure. A 75-year-old woman who had suffered from dysphagia and dysuria under a diagnosis of probable MSA with predominant cerebellar ataxia underwent autopsy. Eosinophilia was seen extensively in the muscle layer of the esophagus and urinary bladder. Eosinophilic infiltration to the esophagus was localized in the smooth muscle layer and could be considered as "eosinophilic esophageal myositis" identified in patients with nutcracker esophagus and jackhammer esophagus...
April 6, 2018: Pathology International
https://www.readbyqxmd.com/read/29633423/met-amplification-in-endometrial-cancers-with-clear-cell-carcinoma-components
#13
Yoshie Obata, Yoriko Yamashita, Koji Takahashi, Kouki Yasuda, Tomomi Kato, Masanori Yasuda, Aya Naiki-Ito, Satoru Takahashi, Tetsuro Nagasaka
Endometrial clear-cell carcinoma (ECC) is relatively rare. The expression of diagnostic markers in this disease is similar to that of clear-cell carcinoma, but the molecular carcinogenic events and therapeutic targets are mostly unknown. MET gene amplification has been reported in various cancers, including ovarian clear-cell carcinomas; however, the MET gene status has not previously been examined in ECC. We performed real-time quantitative PCR (QPCR) and fluorescence in situ hybridization (FISH) to analyze the MET gene statuses of 12 ECC cases...
April 6, 2018: Pathology International
https://www.readbyqxmd.com/read/29624784/non-thermal-plasma-as-a-simple-ferroptosis-inducer-in-cancer-cells-a-possible-role-of-ferritin
#14
LETTER
Takahiro Furuta, Lei Shi, Shinya Toyokuni
No abstract text is available yet for this article.
April 6, 2018: Pathology International
https://www.readbyqxmd.com/read/29624782/a-molecular-pathological-study-of-four-cases-of-ciliated-muconodular-papillary-tumors-of-the-lung
#15
Toshiaki Kataoka, Koji Okudela, Mai Matsumura, Hideaki Mitsui, Takehisa Suzuki, Chihiro Koike, Tomoe Sawazumi, Shigeaki Umeda, Yoko Tateishi, Shoji Yamanaka, Yoshihiro Ishikawa, Hiromasa Arai, Michihiko Tajiri, Kenichi Ohashi
Ciliated muconodular papillary tumors (CMPTs) are a recently categorized benign or low-grade malignant neoplasm that develops in the peripheral lung. Only about 40 cases have been reported to date, and the clinicopathological characteristics have yet to be defined in detail. Here, we present four cases of CMPTs with a focus on their immunohistochemical profiles and driver gene mutations. These tumors were a papillary proliferation of a mixture of ciliated, mucous, and basal cells located in the peripheral lung...
April 6, 2018: Pathology International
https://www.readbyqxmd.com/read/29603831/an-autopsy-case-report-differences-in-radiological-images-correlate-with-histology-in-erdheim-chester-disease
#16
Yuuki Ohara, Seiichi Kato, Daisuke Yamashita, Akira Satou, Yoshie Shimoyama, Chie Hamaie, Motoki Sato, Nobutaro Ban, Koji Yamamoto, Takehiro Yamada, Hisashi Kawai, Koichi Ohshima, Shigeo Nakamura, Shinya Toyokuni
p16 activation caused by oncogenic mutations may represent oncogene-induced senescence (OIS), a protective mechanism against oncogenic events. However, OIS can contribute to tumor development via tissue remodeling in some tumors. Erdheim-Chester disease (ECD), a rare non-Langerhans cell histiocytosis, is one such tumor. Its clinical and histological features vary, making it difficult to diagnose. Herein, we describe an autopsy of an ECD patient. The patient underwent radiological examinations, including18 F-fluorodeoxyglucose (FDG)-positron emission tomography/computed tomography (PET/CT), bone scintigraphy and CT...
March 30, 2018: Pathology International
https://www.readbyqxmd.com/read/29603824/expression-of-protein-arginine-methyltransferase-5-in-oral-squamous-cell-carcinoma-and-its-significance-in-epithelial-to-mesenchymal-transition
#17
Yusuke Amano, Daisuke Matsubara, Taichiro Yoshimoto, Tomoko Tamura, Hiroshi Nishino, Yoshiyuki Mori, Toshiro Niki
Protein arginine methyltransferases (PRMT) 5, a member of type II arginine methyltransferases, catalyzes the symmetrical dimethylation of arginine residues on histone and non-histone substrates. Although the overexpression of PRMT5 has been reported in various cancers, its role in oral squamous cell carcinoma (OSCC) has not been elucidated. In the present study, we immunohistochemically examined the expression of PRMT5 in surgically resected oral epithelial dysplasia (OED, n = 8), oral intraepithelial neoplasia (OIN)/carcinoma in situ (CIS) (n = 11) and OSCC (n = 52) with or without contiguous OED lesions...
March 30, 2018: Pathology International
https://www.readbyqxmd.com/read/29575591/improved-clonality-detection-in-hodgkin-lymphoma-using-a-semi-nested-modification-of-the-biomed-2-pcr-assay-for-igh-and-igk-rearrangements-a-paraffin-embedded-tissue-study
#18
Shusen Han, Ayako Masaki, Yuma Sakamoto, Hisashi Takino, Takayuki Murase, Shinsuke Iida, Hiroshi Inagaki
The BIOMED-2 PCR protocols targeting IGH and IGK genes may be useful for detecting clonality in Hodgkin lymphoma (HL). The clonality detection rates, however, have not been very high with these methods using paraffin-embedded tumor sections. We previously described the usefulness of the semi-nested BIOMED-2 IGH assay in B-cell malignancies. In this study, we devised a novel semi-nested BIOMED-2 IGK assay. Employing 58 cases of classical HL, we carried out the standard BIOMED-2, BIOMED-2 followed by BIOMED-2 re-amplification, and BIOMED-2 followed by semi-nested BIOMED-2, all targeting IGH and IGK, using paraffin-embedded tissues...
March 25, 2018: Pathology International
https://www.readbyqxmd.com/read/29575443/a-lesion-categorized-between-ghost-cell-odontogenic-carcinoma-and-dentinogenic-ghost-cell-tumor-with-ctnnb1-mutation
#19
Yae Ohata, Kou Kayamori, Akane Yukimori, Kanako Sumikura, Toshimitsu Ohsako, Hiroyuki Harada, Kei Sakamoto, Tohru Ikeda
Ghost cell odontogenic carcinoma (GCOC) is a rare malignant neoplasm characterized by the presence of ghost cells. It is considered to arise either de novo or from a preexisting benign precursor, calcifying odontogenic cyst (COC), or dentinogenic ghost cell tumor (DGCT). We report a case of a 44-year-old Japanese male with a left maxillary tumor. The patient received treatment to resect the left maxillary cyst 25 years prior; however, the details were uncertain. The tumor was resected with clear margins. Taken together with the results of histological and immunohistochemical examinations, the tumor was categorized between GCOC and DGCT, and we diagnosed the tumor as GCOC suggesting similarity to DGCT...
March 25, 2018: Pathology International
https://www.readbyqxmd.com/read/29575341/coexistence-of-gastrointestinal-stromal-tumor-and-leiomyosarcoma-of-the-stomach-presenting-as-a-collision-tumor-a-case-report-and-review-of-literature
#20
Hiroki Kitagawa, Mayumi Kaneko, Mikihiro Kano, Yuta Ibuki, Vishwa Jeet Amatya, Yukio Takeshima, Naoki Hirabayashi, Seiichi Hirota
Collision tumor of the stomach is rare. We report a rare case of a gastric collision tumor consisting of gastrointestinal stromal tumors (GISTs) and leiomyosarcoma (LMS). Computed tomography scan revealed a 15 cm sized mass in the posterior wall of the body of the stomach. Gross examination of the wedge resection specimen showed the tumor located in the muscularis propria with extramural protrusion into the peritoneal cavity and the gastric cavity with geographic necrosis, hemorrhage, and mucosal ulceration...
March 25, 2018: Pathology International
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