Eosinophilic pancreatitis is a rare disease with, to date, only 10 reported cases. We report two patients whose presentation was suggestive of a pancreatic tumor. An 18-year-old man presented with a short history of obstructive jaundice, epigastric pain, and weight loss. Endoscopic ultrasonography revealed a 12-mm round, hypoechoic lesion in the head of the pancreas, suggestive of a pancreatic endocrine tumor. A duo-denopancreatectomy was performed, and the patient made an uneventful recovery. A 64-year-old man was referred with weight loss and obstructive jaundice due to a stricture of the common bile duct. Retrograde pancreatography demonstrated a very narrow, regular main pancreatic duct and early parenchymography. Endoscopic retrograde cholangiopancreatography revealed a tight, regular stenosis of the intrahepatic portion of the common bile duct. A gastrojejunal anastomosis and biliary-digestive bypass were performed without postoperative complications. In both cases, the diagnosis of eosinophilic pancreatitis was revealed after surgical resection. The features of eosinophilic pancreatitis, including eosinophilic infiltration of the digestive wall, a history of atopy, and the radiological characteristics are described. If these are of sufficient discriminatory value, unnecessary surgery may be avoided.
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Gastro Hep Adv
August 2024
Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida.
The development of hepatic metastases is the leading cause of mortality in gastrointestinal (GI) cancers and substantial research efforts have been focused on elucidating the intricate mechanisms by which tumor cells successfully migrate to, invade, and ultimately colonize the liver parenchyma. Recent evidence has shown that perturbations in myeloid biology occur early in cancer development, characterized by the initial expansion of specific innate immune populations that promote tumor growth and facilitate metastases. This review summarizes the pathophysiology underlying the proliferation of myeloid cells that occurs with incipient neoplasia and explores the role of innate immune-host interactions, specifically granulocytes and neutrophil extracellular traps, in promoting hepatic colonization by tumor cells through the formation of the "premetastatic niche".
View Article and Find Full Text PDFBMJ Case Rep
January 2025
Department of General Surgery, Lokmanya Tilak Municipal Medical College and General Hospital, Mumbai, Maharashtra, India.
A girl in early adolescence presented with complaints of abdominal pain lasting for 4 months, along with a palpable lump in the epigastric region. A CT scan revealed a large solid-cystic mass lesion measuring 9.5×10.
View Article and Find Full Text PDFClin Transl Oncol
January 2025
UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, USA.
Background: Small extracellular vesicles (sEV) released by tumor cells (tumor-derived sEV; TEX) mediate intercellular communication between tumor and non-malignant cells and were shown to impact disease progression. This study investigates the relationship between the expression levels of the vesiculation-related genes linked to sEV production and the tumor microenvironment (TME).
Methods: Two independent gene sets were analyzed, both previously linked to sEV production in various non-malignant or malignant cells.
Arthritis Res Ther
January 2025
Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, the Ministry of Education Key Laboratory, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Beijing, China.
Objective: Severe gastrointestinal lesions are associated with a poor prognosis in eosinophilic granulomatosis with polyangiitis (EGPA). The goal of this study was to develop an effective predictive model for gastrointestinal lesions and to examine clinical patterns, associated factors, treatment, and outcomes of gastrointestinal lesions in EGPA.
Methods: We retrospectively enrolled 165 EGPA patients.
Pathol Res Pract
December 2024
Dnipro State Medical University, Dnipro 49044, Ukraine.
Introduction: Solid pseudopapillary neoplasm (SPN) is a rare pancreatic tumor typically occurring in young females. This case presents an instance of SPN in a 54-year-old Caucasian female, highlighting atypical age of onset and providing new insights into the tumor's clinical and histopathological diversity.
Case Report: A 54-year-old female with no significant past medical history presented with upper abdominal discomfort and weakness.
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