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Article ; Online: Margin-Negative en Bloc Resection of a Large Retroperitoneal Melanoma Including Reconstruction of the Infra-renal Inferior Vena Cava.

Slutsky, Hanna L / Johnson, Douglas B / Stone, Patrick / Tan, Marcus C B

2023 Volume 89, Issue 8, Page(s) 3668–3670

Abstract: The management and outcomes for patients with metastatic melanoma have been revolutionized by immunotherapy. This case report highlights the role of surgery as an adjuvant to systemic therapies when there is oligoprogressive disease. We describe a 74- ... ...

Abstract	The management and outcomes for patients with metastatic melanoma have been revolutionized by immunotherapy. This case report highlights the role of surgery as an adjuvant to systemic therapies when there is oligoprogressive disease. We describe a 74-year-old man with metastatic melanoma who initially had a complete radiographic response after dual agent immunotherapy but subsequently developed a large metastasis in the retroperitoneum. After multidisciplinary discussion, he underwent margin negative resection that required en bloc segmental resection of the infra-renal inferior vena cava. To our knowledge, this is the first reported resection of a melanoma metastasis in this location.
MeSH term(s)	Male ; Humans ; Aged ; Vena Cava, Inferior/surgery ; Vena Cava, Inferior/pathology ; Retroperitoneal Neoplasms/diagnostic imaging ; Retroperitoneal Neoplasms/surgery ; Retroperitoneal Neoplasms/pathology ; Kidney ; Abdomen ; Melanoma/diagnostic imaging ; Melanoma/surgery ; Melanoma/pathology
Language	English
Publishing date	2023-05-04
Publishing country	United States
Document type	Case Reports ; Journal Article
ZDB-ID	202465-2
ISSN	1555-9823 ; 0003-1348
ISSN (online)	1555-9823
ISSN	0003-1348
DOI	10.1177/00031348231173956
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Article ; Online: Small Bowel Obstruction Caused by Bezoar Formation Around Intraluminal Hernia Mesh.

Gallagher, Kathleen C / Pinzon-Guzman, Carolina / Pierce, Richard A / Tan, Marcus C B

The American surgeon

2022 Volume 88, Issue 8, Page(s) 1904–1906

Abstract: We present a case report wherein a 55-year-old female presented to our clinic with chronic nausea, vomiting, and dehydration in the setting of a complex past surgical history, including laparoscopic incisional hernia repair in 2007 with intraperitoneal ... ...

Abstract	We present a case report wherein a 55-year-old female presented to our clinic with chronic nausea, vomiting, and dehydration in the setting of a complex past surgical history, including laparoscopic incisional hernia repair in 2007 with intraperitoneal TiMesh
MeSH term(s)	Bezoars/complications ; Bezoars/diagnostic imaging ; Bezoars/surgery ; Dehydration ; Female ; Hernia, Ventral/surgery ; Herniorrhaphy/adverse effects ; Humans ; Intestinal Obstruction/etiology ; Intestinal Obstruction/surgery ; Laparoscopy/adverse effects ; Middle Aged ; Nausea ; Surgical Mesh/adverse effects ; Vomiting/complications
Language	English
Publishing date	2022-04-22
Publishing country	United States
Document type	Case Reports ; Journal Article
ZDB-ID	202465-2
ISSN	1555-9823 ; 0003-1348
ISSN (online)	1555-9823
ISSN	0003-1348
DOI	10.1177/00031348221086788
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Article ; Online: Hypovitaminosis C in Surgical Patients: an Under-recognized but Modifiable Risk Factor for Worse Outcomes? A Single-Institution Prospective Study.

Tan, Marcus C B / Idrees, Kamran / Zhang, Kevin S / Ye, Fei / Morton, Colleen T / McEvoy, Matthew D

Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract

2023 Volume 27, Issue 9, Page(s) 1941–1943

MeSH term(s)	Humans ; Prospective Studies ; Risk Factors ; Anastomotic Leak/etiology
Language	English
Publishing date	2023-04-20
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2012365-6
ISSN	1873-4626 ; 1934-3213 ; 1091-255X
ISSN (online)	1873-4626 ; 1934-3213
ISSN	1091-255X
DOI	10.1007/s11605-023-05676-y
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Zs.A 5207: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (2.OG) ab Jg. 2022: Lesesaal (EG)
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Article ; Online: Emphysematous gastritis due to Sarcina ventriculi infection in an immunocompromised adult.

Kisch, Sean E / Walker, Jasmine / Hebert, Annette E / Windon, Annika L / Dee, Kevin Christopher / Haddad, Sara M / Langone, Anthony / Tan, Marcus C B

Transplant infectious disease : an official journal of the Transplantation Society

2023 Volume 26, Issue 1, Page(s) e14207

MeSH term(s)	Adult ; Humans ; Sarcina ; Gastritis/diagnosis ; Clostridium ; Intraabdominal Infections
Language	English
Publishing date	2023-12-01
Publishing country	Denmark
Document type	Journal Article
ZDB-ID	1476094-0
ISSN	1399-3062 ; 1398-2273
ISSN (online)	1399-3062
ISSN	1398-2273
DOI	10.1111/tid.14207
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Article ; Online: Surgical Resection of Colorectal Liver Metastases: Attitudes and Practice Patterns in the Deep South.

Fonseca, Annabelle L / Payne, Isaac C / Wong, Sandra L / Tan, Marcus C B

Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract

2021 Volume 26, Issue 4, Page(s) 782–790

Abstract: Background: Metastatic disease is the leading cause of mortality in colorectal cancer. Resection of colorectal liver metastases, when possible, is associated with improved long-term survival and the possibility of cure. However, nationwide studies ... ...

Abstract	Background: Metastatic disease is the leading cause of mortality in colorectal cancer. Resection of colorectal liver metastases, when possible, is associated with improved long-term survival and the possibility of cure. However, nationwide studies suggest that liver resection is under-utilized in the treatment of colorectal liver metastases. This study was undertaken to understand attitudes and practice patterns among medical oncologists in the Deep South. Methods: A survey of medical oncologists in the states of Alabama, Mississippi, and the Florida panhandle was performed. Respondents were queried regarding perceptions of resectability and attitudes towards surgical referral. Results: We received 63 responses (32% response rate). Fifty percent of respondents reported no liver surgeons in their practice area. Commonly perceived contraindications to liver resection included extrahepatic metastatic disease (72%), presence of > 4 metastases (72%), bilobar metastases (61%), and metastases > 5 cm (46%). Bilobar metastatic disease was perceived as a contraindication more frequently by non-academic medical oncologists (70% vs. 33%, p = 0.03). Conclusions: Wide variations exist in perceptions of resectability and referral patterns for colorectal liver metastases among surveyed medical oncologists. There is a need for wider dissemination of resectability criteria and more liver surgeon involvement in the management of patients with colorectal liver metastases.
MeSH term(s)	Attitude ; Colorectal Neoplasms/pathology ; Colorectal Neoplasms/surgery ; Hepatectomy ; Humans ; Liver Neoplasms/secondary ; Liver Neoplasms/surgery ; Referral and Consultation
Language	English
Publishing date	2021-10-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	2012365-6
ISSN	1873-4626 ; 1934-3213 ; 1091-255X
ISSN (online)	1873-4626 ; 1934-3213
ISSN	1091-255X
DOI	10.1007/s11605-021-05159-y
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Article ; Online: Oncogenic Fatty Acid Metabolism Rewires Energy Supply Chain in Gastric Carcinogenesis.

Won, Yoonkyung / Jang, Bogun / Lee, Su-Hyung / Reyzer, Michelle L / Presentation, Kimberly S / Kim, Hyesung / Caldwell, Brianna / Zhang, Changqing / Lee, Hye Seung / Lee, Cheol / Trinh, Vincent Q / Tan, Marcus C B / Kim, Kwangho / Caprioli, Richard M / Choi, Eunyoung

Gastroenterology

2024 Volume 166, Issue 5, Page(s) 772–786.e14

Abstract: Background & aims: Gastric carcinogenesis develops within a sequential carcinogenic cascade from precancerous metaplasia to dysplasia and adenocarcinoma, and oncogenic gene activation can drive the process. Metabolic reprogramming is considered a key ... ...

Abstract	Background & aims: Gastric carcinogenesis develops within a sequential carcinogenic cascade from precancerous metaplasia to dysplasia and adenocarcinoma, and oncogenic gene activation can drive the process. Metabolic reprogramming is considered a key mechanism for cancer cell growth and proliferation. However, how metabolic changes contribute to the progression of metaplasia to dysplasia remains unclear. We have examined metabolic dynamics during gastric carcinogenesis using a novel mouse model that induces Kras activation in zymogen-secreting chief cells. Methods: We generated a Gif-rtTA;TetO-Cre;Kras Results: The GCK mice developed metaplasia and high-grade dysplasia within 4 months. Metabolic reprogramming from glycolysis to fatty acid metabolism occurred during metaplasia progression to dysplasia. Altered fatty acid desaturation through SCD produces a novel eicosenoic acid, which fuels dysplastic cell hyperproliferation and survival. The SCD inhibitor killed both mouse and human dysplastic organoids and selectively targeted dysplastic cells in vivo. SCD was up-regulated during carcinogenesis in human gastrointestinal cancers. Conclusions: Active Kras expression only in gastric chief cells drives the full spectrum of gastric carcinogenesis. Also, oncogenic metabolic rewiring is an essential adaptation for high-energy demand in dysplastic cells.
MeSH term(s)	Animals ; Stomach Neoplasms/pathology ; Stomach Neoplasms/metabolism ; Stomach Neoplasms/genetics ; Humans ; Fatty Acids/metabolism ; Proto-Oncogene Proteins p21(ras)/genetics ; Proto-Oncogene Proteins p21(ras)/metabolism ; Energy Metabolism ; Organoids/metabolism ; Mice ; Metaplasia ; Disease Models, Animal ; Carcinogenesis/metabolism ; Carcinogenesis/genetics ; Carcinogenesis/pathology ; Chief Cells, Gastric/metabolism ; Chief Cells, Gastric/pathology ; Cell Transformation, Neoplastic/metabolism ; Cell Transformation, Neoplastic/pathology ; Cell Transformation, Neoplastic/genetics ; Mice, Transgenic ; Glycolysis ; Adenocarcinoma/pathology ; Adenocarcinoma/metabolism ; Adenocarcinoma/genetics ; Disease Progression ; Precancerous Conditions/pathology ; Precancerous Conditions/metabolism ; Precancerous Conditions/genetics
Chemical Substances	Fatty Acids ; Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2) ; Hras protein, mouse (EC 3.6.5.2) ; KRAS protein, human
Language	English
Publishing date	2024-01-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
ZDB-ID	80112-4
ISSN	1528-0012 ; 0016-5085
ISSN (online)	1528-0012
ISSN	0016-5085
DOI	10.1053/j.gastro.2024.01.027
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Article: Oncogenic GNAS drives a gastric pylorus program in intraductal papillary mucinous neoplasms of the pancreas.

Trinh, Vincent Quoc-Huy / Ankenbauer, Katherine E / Liu, Jiayue / Batardiere, Maelle / Maurer, H Carlo / Copeland, Celina / Wong, Jahg / Ben-Levy, Olivia / Torbit, Sabrina M / Jarvis, Brenda / Revetta, Frank / Ivanov, Sergey / Jyotsana, Nidhi / Makino, Yuki / Ruelas, Amanda M / Means, Anna L / Maitra, Anirban / Tan, Marcus C B / DelGiorno, Kathleen E

bioRxiv : the preprint server for biology

2024

Abstract: Objective: Intraductal Papillary Mucinous Neoplasms (IPMNs) are cystic lesions and bona fide precursors for pancreatic ductal adenocarcinoma (PDAC). Recently, we showed that acinar to ductal metaplasia, an injury repair program, is characterized by a ... ...

Abstract	Objective: Intraductal Papillary Mucinous Neoplasms (IPMNs) are cystic lesions and bona fide precursors for pancreatic ductal adenocarcinoma (PDAC). Recently, we showed that acinar to ductal metaplasia, an injury repair program, is characterized by a transcriptomic program similar to gastric spasmolytic polypeptide expressing metaplasia (SPEM), suggesting common mechanisms of reprogramming between the stomach and pancreas. The aims of this study were to assay IPMN for pyloric markers and to identify molecular drivers of this program. Design: We analyzed RNA-seq studies of IPMN for pyloric markers, which were validated by immunostaining in patient samples. Cell lines expressing Results: Pyloric markers were identified in human IPMN. Conclusion: De novo
Language	English
Publishing date	2024-02-28
Publishing country	United States
Document type	Preprint
DOI	10.1101/2024.02.25.581948
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Article: Enteroendocrine Cell Formation Is an Early Event in Pancreatic Tumorigenesis.

Caplan, Leah R / Vavinskaya, Vera / Gelikman, David G / Jyotsana, Nidhi / Trinh, Vincent Q / Olive, Kenneth P / Tan, Marcus C B / DelGiorno, Kathleen E

Frontiers in physiology

2022 Volume 13, Page(s) 865452

Abstract: Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease with a 5-year survival rate of only 11%, due, in part, to late diagnosis, making the need to understand early events in tumorigenesis critical. Acinar-to-ductal metaplasia (ADM), when not ... ...

Abstract	Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease with a 5-year survival rate of only 11%, due, in part, to late diagnosis, making the need to understand early events in tumorigenesis critical. Acinar-to-ductal metaplasia (ADM), when not resolved, is a PDAC precursor. Recently, we showed that ADM is constituted by a heterogenous population of cells, including hormone-producing enteroendocrine cells (EECs: gamma, delta, epsilon, and enterochromaffin cells). In this study, we employed histopathological techniques to identify and quantify the abundance of EEC subtypes throughout pancreatic tumorigenesis in mouse models and human disease. We found that EECs are most abundant in ADM and significantly decrease with lesion progression. Co-immunofluorescence identifies distinct lineages and bihormonal populations. Evaluation of EEC abundance in mice lacking
Language	English
Publishing date	2022-04-27
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2564217-0
ISSN	1664-042X
ISSN	1664-042X
DOI	10.3389/fphys.2022.865452
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Article ; Online: Surgical management of retroperitoneal and pelvic sarcomas.

Tan, Marcus C B / Yoon, Sam S

Journal of surgical oncology

2015 Volume 111, Issue 5, Page(s) 553–561

Abstract: Management of retroperitoneal sarcomas presents technical and oncological challenges. Imaging is crucial for diagnosis and to define local tumor extent. Complete gross resection at initial presentation is the best chance for cure, but there is ... ...

Abstract	Management of retroperitoneal sarcomas presents technical and oncological challenges. Imaging is crucial for diagnosis and to define local tumor extent. Complete gross resection at initial presentation is the best chance for cure, but there is controversy as to how this can be best achieved. There is a long-term risk of local recurrence, which is best treated with repeat resection if feasible. The roles of radiation and chemotherapy remain undefined.
MeSH term(s)	Humans ; Neoplasm Staging ; Pelvic Neoplasms/pathology ; Pelvic Neoplasms/surgery ; Retroperitoneal Neoplasms/pathology ; Retroperitoneal Neoplasms/surgery ; Sarcoma/pathology ; Sarcoma/surgery
Language	English
Publishing date	2015-04
Publishing country	United States
Document type	Journal Article ; Review
ZDB-ID	82063-5
ISSN	1096-9098 ; 0022-4790
ISSN (online)	1096-9098
ISSN	0022-4790
DOI	10.1002/jso.23840
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Article ; Online: Complex Surgical Management of Radiation-Associated Left Retroperitoneal Sarcoma.

Walker, Jasmine C / Bradley, Joel F / Luckenbaugh, Amy N / Lambright, Eric S / Sandvall, Brinkley K / Keedy, Vicki L / Holt, Ginger E / Tan, Marcus C B

The American surgeon

2022 Volume 88, Issue 9, Page(s) 2230–2232

Abstract: Radiation-associated sarcomas (RASs) are rare entities that tend to have an aggressive course and poor prognosis. Criteria for diagnosis of radiation-associated sarcoma include therapeutic radiation preceding the development of sarcoma, sarcoma arising ... ...

Abstract	Radiation-associated sarcomas (RASs) are rare entities that tend to have an aggressive course and poor prognosis. Criteria for diagnosis of radiation-associated sarcoma include therapeutic radiation preceding the development of sarcoma, sarcoma arising within or near the irradiated field, and tumor histology that is distinct from the primary tumor necessitating radiation. Despite their relatively uncommon occurrence, RASs are a well-established complication of radiation therapy. We present the complex, multidisciplinary surgical management of a patient with multi-compartmental radiation-associated sarcoma of the left retroperitoneum occurring nearly 25 years after undergoing whole trunk radiation for Hodgkin's lymphoma.
MeSH term(s)	Hodgkin Disease ; Humans ; Retroperitoneal Neoplasms/complications ; Retroperitoneal Neoplasms/radiotherapy ; Retroperitoneal Neoplasms/surgery ; Sarcoma/radiotherapy ; Sarcoma/surgery ; Soft Tissue Neoplasms/pathology
Language	English
Publishing date	2022-05-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	202465-2
ISSN	1555-9823 ; 0003-1348
ISSN (online)	1555-9823
ISSN	0003-1348
DOI	10.1177/00031348221092641
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