Pancreatic cancer is one of the most lethal malignancies, primarily due to late-stage diagnosis and limited therapeutic options. Cancer stem cells (CSCs) contribute to tumor heterogeneity, therapy resistance, and recurrence through activation of developmental pathways such as Hedgehog, Wnt, Notch, JAK-STAT, and Hippo. Identifying CSCs is therefore essential for understanding pancreatic ductal adenocarcinoma (PDAC) pathogenesis and advancing targeted therapies. This study compares the expression of key CSC-associated markers (CD44, CD117, OCT3/4, and c-Myc) in PDAC, fetal, and adult pancreas to elucidate CSC dynamics. Immunohistochemistry for CSC markers (CD44, CD117, OCT3/4, and c-Myc) was performed on PDAC tissues and control pancreatic samples (fetal pancreas 28–36 weeks and adult pancreas) to evaluate marker expression. Proliferative potential was assessed using CK7 and Ki-67 expression patterns. CD44 showed strong membranous and cytoplasmic expression in PDAC, moderate in fetal pancreas (epithelial/ductal regions), and minimal expression in adult tissue. CD117 was mainly restricted to stromal cells in PDAC, also present in fetal tissue but low in adults.c-Myc and Ki-67 were moderately expressed in PDAC, significantly higher than the control samples. CK7 demonstrated strong cytoplasmic staining in PDAC, moderate expression in adults, and weak expression in fetal samples. CD44 and c-Myc re-expression in PDAC supports their role as CSC-associated markers and potential drivers of tumor progression. CD117’s stromal localization suggests tumor–stroma interactions. These findings highlight developmental reactivation of CSC markers in PDAC, with implications for early detection and targeted therapy.

Midgut malrotation and incomplete rotation are common causes of neonatal intestinal obstruction. At end of 10 week of intrauterine life, cecum will be placed in subhepatic region temporarily and descends to right lower quadrant by eleventh week. Arrest of cecum in subhepatic region or undescended cecum is a rare congenital anomaly of mid gut. Usually, it remains asymptomatic and is diagnosed incidentally. If any pathology occurs in anomalous part, like appendicitis then the diagnosis and treatment will be challenging in all age groups. Variation in blood supply have also been reported with anomalies leading to iatrogenic injuries during colonoscopy and surgeries. Lack of knowledge of these rare variations may lead to delayed diagnosis of appendicitis leading to perforation and surgical emergencies. In the present case, we describe an undescended cecum and its associated variation in branching pattern of superior mesenteric artery.
Appendicitis ; Arteries* ; Cecum* ; Colic* ; Colonoscopy ; Delayed Diagnosis ; Diagnosis ; Emergencies ; Humans ; Intestinal Obstruction ; Mesenteric Artery, Superior ; Pathology