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  Kate Glennon, Ann Treacy, Tony Geoghegan, Paul Downey, Donal Brennan
  International Journal of Gynecologic Cancer.2022; 32(4): 566.     CrossRef
• Concurrent metastatic ovarian adenocarcinoma of endocervical adenocarcinoma in situ: A case report emphasizing pathologic diagnostic key points and clinical progress
  In Ok Lee, Yee Jung Kim, Hanna Moon, Jae Eun Chung
  Gynecologic Oncology Reports.2021; 36: 100766.     CrossRef
• Peritoneal HPV‐DNA test in cervical cancer (PIONEER study): A proof of concept
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  International Journal of Cancer.2021; 148(5): 1197.     CrossRef
• Cervical stromal involvement by endometrial ‘hyperplasia’: a previously unreported phenomenon with recommendations to report as stage II endometrial carcinoma
  Jennifer Taylor, W. Glenn McCluggage
  Pathology.2021; 53(5): 568.     CrossRef
• Pelvic and Ovarian Recurrence of Small HPV-associated Cervical Adenocarcinoma With Transformation to Neuroendocrine Carcinoma
  Duaa Abu-Sinn, Jackie Jamison, Matthew Evans, W. Glenn McCluggage
  International Journal of Gynecological Pathology.2021; 40(6): 541.     CrossRef
• Superficially Spreading Endocervical Adenocarcinoma in situ with Multifocal Microscopic Involvement of the Endometrial Surface: A Case Report with Emphasis on the Potential for Misdiagnosis Based on Endometrial Curettage Specimens
  Inwoo Hwang, Jiyeon Lee, Kyue-Hee Choi, Jiheun Han, Hyun-Soo Kim
  Case Reports in Oncology.2020; 13(3): 1530.     CrossRef

Peritoneal loose bodies (PLBs) are usually discovered incidentally during laparotomy or autopsy. A few cases of giant PLBs presenting with various symptoms have been reported in the literature. Here, we describe a case of a giant PLB incidentally found in the pelvic cavity of a 50-year-old man. Computed tomography revealed a free ovoid mass in the pelvic cavity that consisted of central dense, heterogeneous calcifications and peripheral soft tissue. The mass was an egg-shaped, hard, glistening concretion measuring 7.5×7.0×6.8 cm and weighing 160 g. This concretion consisted of central necrotic fatty tissue surrounded by concentrically laminated, acellular, fibrous material. Small PLBs usually do not require any specific treatment. However, if PLBs cause alimentary or urinary symptoms due to their large size, surgical removal may be recommended. It is essential for clinicians to be aware of this entity and its characteristic features to establish the correct diagnosis.

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• A Large Intraperitoneal Free Body in a 69-Year-Old Indian Man: a Case Study
  Siddhartha Sankar Bhattacharjee, Promit Chakraborty
  Indian Journal of Surgery.2022; 84(1): 206.     CrossRef
• Peritoneal loose body presenting as a hepatic mass: A case report and review of the literature
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  ACG Case Reports Journal.2021; 8(11): e00680.     CrossRef
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  Journal of International Medical Research.2020; 48(10): 030006052095471.     CrossRef
• A rare peritoneal egg: Case report with literature review
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  Radiology Case Reports.2020; 15(10): 1895.     CrossRef
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  Ayad A. Mohammed
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• Laparoscopic extraction of a giant peritoneal loose body: Case report and review of literature
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• A Case of a Peritoneal Loose Body with the Maximum Diameter of 50 mm
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Papillary thyroid carcinoma with nodular fasciitis-like stroma (PTC-NFS) is a rare variant of PTC. The term 'PTC with fibromatosis-like stroma' has been used as a synonym to describe this variant. It is characterized by extensive proliferation of fibroblasts and myofibroblasts in the tumor stroma, which occurs in up to 80% of the tumors. We herein describe a case of PTC-NFS which developed in a 49-year-old woman with the demonstration of findings of ultrasonography, fine needle aspiration cytology and histological examination of the lesion. To characterize the stromal components, we investigated the expression of several immunohistochemical markers which have been shown to be expressed differently in nodular fasciitis (NF) and fibromatosis (FM). The immunostaining results demonstrated nuclear and cytoplasmic accumulation of β-catenin, cytoplasmic transforming growth factor-β expression and nuclear Smad expression in the stromal cells, suggesting that the stromal cells in this case have similar molecular profiles to those of FM rather than NF.

Citations

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• Papillary Thyroid Carcinoma with Desmoid-Type Fibromatosis: Review of Published Cases
  Abdallah Roukain, Stefano La Rosa, Massimo Bongiovanni, Marie Nicod Lalonde, Valérie Cristina, Michael Montemurro, Stephane Cochet, Alexandra Luquain, Peter A. Kopp, Gerasimos P. Sykiotis
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• Case of medullary thyroid carcinoma with desmoid‐type fibromatosis
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  Pathology International.2020; 70(6): 364.     CrossRef
• SOX11 expression in a case of papillary thyroid carcinoma with fibromatosis/fasciitis-like stroma containing BRAF c.1799_1801delTGA and CTNNB1 c.133T>C mutations
  Soon Boon Justin Wong, Min En Nga, Michal Michal, Tomas Vanecek, Ju Ee Seet, Fredrik Petersson
  Virchows Archiv.2019; 475(4): 519.     CrossRef
• Papillary thyroid cancer with extrathyroidal extension of desmoid-type fibromatosis. A case report of an aggressive presentation of an uncommon pathologic entity
  Eve M. Roth, Courtney E. Barrows, Michiya Nishino, Barry Sacks, Per-Olof Hasselgren, Benjamin C. James
  International Journal of Surgery Case Reports.2019; 63: 5.     CrossRef
• Papillary thyroid carcinoma with nodular fasciitis-like stroma and β-catenin mutations should be renamed papillary thyroid carcinoma with desmoid-type fibromatosis
  Caterina Rebecchini, Antoine Nobile, Simonetta Piana, Rossella Sarro, Bettina Bisig, Sykiotis P Gerasimos, Chiara Saglietti, Maurice Matter, Laura Marino, Massimo Bongiovanni
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• Papillary thyroid carcinoma with desmoid-type fibromatosis: A clinical, pathological, and immunohistochemical study of 14 cases
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• A Case of Papillary Thyroid Carcinoma with Fasciitis-like Stroma
  Toshihiko WAKU, Hiroshi SONOBE
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• Stromal Modulation and its Role in the Diagnosis of Papillary Patterned Thyroid Lesions
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  Asian Pacific Journal of Cancer Prevention.2015; 16(8): 3307.     CrossRef
• Papillary Thyroid Carcinoma With Nodular Fasciitis–Like Stroma
  Paula S. Ginter, Theresa Scognamiglio
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• Notch and TGF-β/Smad3 pathways are involved in the interaction between cancer cells and cancer-associated fibroblasts in papillary thyroid carcinoma
  Jie Zhang, Yuan Wang, Dan Li, Shanghua Jing
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A uterus-like mass (ULM) is a central cavity lined by endometrial glands and stroma and surrounded by thick-walled smooth muscles. To date, 31 cases of ULM have been reported in the English literature. ULM typically presents as a single mass and is located in the pelvic cavity. We report here a very rare case of multiple extrapelvic ULMs involving the cecum, descending colon, and mesocolon. After extensive literature research, our case appears to be the first case of multiple ULMs found in extrapelvic sites and the first case of ULM in the colon. The present case suggests that ULM should be included in the differential diagnosis of colonic submucosal tumors in female patients with chronic abdominal pain or menstruation-associated symptoms.

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• Extrapelvic “Uterus Like Mass” Following Laparoscopic Morcellation Hysterectomy - a Consequence of Iatrogenic Implantation?
  Neha Bakshi, Shashi Dhawan
  International Journal of Surgical Pathology.2022; : 106689692211333.     CrossRef
• Extrauterine adenomyoma of the lesser omentum: A case report and review of the literature
  Yanlin Chen, Liangyong Deng, Jingbo Zhao, Tianwen Luo, Zhong Zuo
  Medicine.2022; 101(36): e30240.     CrossRef
• Pelvic Pain and Adnexal Mass: Be Aware of Accessory and Cavitated Uterine Mass
  Pooya Iranpour, Sara Haseli, Pedram Keshavarz, Amirreza Dehghanian, Neda Khalili, Michael S. Firstenberg
  Case Reports in Medicine.2021; 2021: 1.     CrossRef
• Endomyometriosis of the Rectum With Disseminated Peritoneal Leiomyomatosis 8 Years After Laparoscopic Myomectomy: A Case Report
  Giorgio La Greca, Cristina Colarossi, Paolo Di Mattia, Cecilia Gozzo, Marco De Zuanni, Eliana Piombino, Lorenzo Memeo
  Frontiers in Surgery.2021;[Epub]     CrossRef
• Imaging Manifestations of Accessory Cavitated Uterine Mass—A Rare Mullerian Anomaly
  Tharani Putta, Reetu John, Betty Simon, Kirthi Sathyakumar, Anuradha Chandramohan, Anu Eapen
  Indian Journal of Radiology and Imaging.2021; 31(03): 545.     CrossRef
• A rare case of ovarian adenomyoma mimicking primary invasive ovarian cancer with a contralateral serous borderline ovarian tumor: A case report and review of the literature
  Viola Liberale, Alessandra Surace, Lorenzo Daniele, Luca Liban Mariani
  Heliyon.2020; 6(7): e04406.     CrossRef
• Extrauterine adenomyoma located in the inguinal region: a case report of a 44-year-old woman
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  Journal of Surgical Case Reports.2020;[Epub]     CrossRef
• Accessory and Cavitated Uterine Mass: Is It a Müllerian-Duct Anomaly?
  Vani Malhotra, Sonia Dahiya, Smiti Nanda, Meenakshi Chauhan, Vandana Bhuria
  Journal of Gynecologic Surgery.2020; 36(6): 350.     CrossRef
• Uterus-like mass in the right broad ligament
  Lei Liu, Hui Yang, Shu-Peng Zhang
  Medicine.2019; 98(38): e17246.     CrossRef
• Extrauterine adenomyoma: a review of the literature
  P.G. Paul, Gunjan Gulati, Hemant Shintre, Sumina Mannur, George Paul, Santwan Mehta
  European Journal of Obstetrics & Gynecology and Reproductive Biology.2018; 228: 130.     CrossRef
• Uterus-like mass
  Jian He, Jie Xu, Hong-Yan Zhou
  Medicine.2016; 95(39): e4961.     CrossRef
• Endometrioid Adenocarcinoma in an Extrauterine Adenomyoma
  Michael A. Ulm, David B. Robins, Edwin M. Thorpe, Mark E. Reed
  Obstetrics & Gynecology.2014; 124(2): 445.     CrossRef
• Endomyometriosis (“Uterus - like mass”) in an XY Male
  Raul S. González, Cindy L. Vnencak-Jones, Chanjuan Shi, Oluwole Fadare
  International Journal of Surgical Pathology.2014; 22(5): 421.     CrossRef

Renal cell carcinoma (RCC) in autosomal dominant polycystic kidney (ADPKD) is rare. To date, 54 cases of RCC in ADPKD have been reported. Among these, only 2 cases have different histologic types of RCC. Here we describe a 45-year-old man who received radical nephrectomy for multifocal RCC with synchronous papillary and clear cell histology in ADPKD and chronic renal failure under regular hemodialysis. The case reported herein is another example of the rare pathological finding of RCC arising in a patient with ADPKD.

Citations

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• The Importance of Genetic Testing in the Differential Diagnosis of Atypical TSC2-PKD1 Contiguous Gene Syndrome—Case Series
  Petronella Orosz, Zita Kollák, Ákos Pethő, András Fogarasi, György Reusz, Kinga Hadzsiev, Tamás Szabó
  Children.2023; 10(3): 420.     CrossRef
• Sarcomatoid renal cell carcinoma with autosomal dominant polycystic kidney disease: a case report and literature review
  Yuji Hakozaki, Kiyotaka Uchiyama, Akane Yanai, Daisuke Yamada, Yuka Kamijo, Yoshitaka Ishibashi
  CEN Case Reports.2021; 10(2): 199.     CrossRef
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  Cancer Imaging.2021;[Epub]     CrossRef
• Incidental occurrence of papillary renal cell carcinoma in the native kidney with autosomal dominant polycystic kidney disease after renal transplantation: A case report
  Mahmoud Abbas, Melanie Pätzel, Angelika Thurn, Olaf Brinkmann, Olaf Bettendorf
  Molecular and Clinical Oncology.2021;[Epub]     CrossRef
• Xp11.2 translocation renal cell carcinoma in the autosomal dominant polycystic kidney disease patient with preserved renal function
  Hyuk Huh, Hyung Ah Jo, YongJin Yi, Seung Hyup Kim, Kyung Chul Moon, Curie Ahn, Hayne Cho Park
  The Korean Journal of Internal Medicine.2017; 32(6): 1108.     CrossRef
• The Association between Autosomal Dominant Polycystic Kidney Disease and Renal Cell Carcinoma
  Chase C. Hansen, Michael Derrick, Irfan Warriach, James Thomas Cammack, James Thomas Cammack, Werner de Riese
  Open Journal of Urology.2015; 05(06): 84.     CrossRef
• The MSCT and MRI findings of collecting duct carcinoma
  Q. Zhu, J. Wu, Z. Wang, W. Zhu, W. Chen, S. Wang
  Clinical Radiology.2013; 68(10): 1002.     CrossRef
• Thyroid-like follicular carcinoma of the kidney in a patient with nephrolithiasis and polycystic kidney disease: a case report
  Metka Volavšek, Margareta Strojan-Fležar, Gregor Mikuz
  Diagnostic Pathology.2013;[Epub]     CrossRef

We present herein the occurrence of multifocal adenocarcinomas with a minute signet ring cell carcinoma that arose within a gastric inverted hyperplastic polyp (IHP) in a 40-year-old woman. Endoscopic ultrasonography demonstrated a heterogeneous hypoechoic mass in the third layer of the gastric wall. The endoscopic submucosal dissection specimen measuring 3.5×3.2×1.8 cm was a well-circumscribed protruding lesion that had a slit-shaped cavity. Histologically, the lesion consisted mainly of endophytic proliferation of hyperplastic columnar cells resembling normal foveolar epithelium. In addition, six foci of adenocarcinomas and a minute focus of signet ring cell carcinoma were randomly distributed in the superficial and deep regions. The adenocarcinoma was gradually transitioning from dysplasia, while the signet ring cell carcinoma was surrounded by hyperplastic foveolar epithelium. This is the first report of a gastric IHP with multifocal intramucosal adenocarcinomas and a signet ring cell carcinoma, and endoscopic submucosal dissection is used to completely resect it.

Citations

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• Gastric hamartomatous inverted polyp: Report of three cases with a review of the endoscopic and clinicopathological features
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• Gastric inverted hyperplastic polyp: A rare cause of iron deficiency anemia
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