Rectal Cancer

In colorectal cancer (CRC), the presence and extent of regional lymph node involvement significantly influence prognosis and guide postoperative treatment decisions. Alongside the traditional nodal assessment, factors such as micrometastases and extramural tumor deposits have emerged as critical determinants of patient outcomes. This article offers a thorough analysis of these prognostic elements based on current […]

Colorectal cancer (CRC) is a heterogeneous disease with complex molecular underpinnings. In recent years, research has elucidated a variety of molecular features that influence both the prognosis and treatment response of patients with CRC. These biomarkers not only help stratify risk but also guide therapeutic decisions, particularly in the era of precision oncology. This article […]

Gross Morphology Colorectal cancers, while all originating from either adenomatous polyps or flat dysplastic lesions, demonstrate distinct gross morphologies depending on their anatomical location. In the right (proximal) colon, tumors commonly present as polypoid or fungating exophytic masses. These growths may not cause overt symptoms initially, but chronic occult bleeding from these lesions often leads […]

Global Overview Worldwide prevalence: CRC is the 3rd most common cancer in males and the 2nd most common in females globally (WHO GLOBOCAN database). Incidence and mortality are consistently higher in males than females. United States Statistics Annual cases: ~154,000 new cases of large bowel cancer. Includes ~107,000 cases of colon cancer. Includes ~47,000 cases […]

Staging in colorectal cancer (CRC) is critical to determining the extent of disease, guiding treatment decisions, and establishing prognosis. Once a diagnosis is confirmed, a structured evaluation must be performed to assess local and distant spread before deciding on further management. This comprehensive guide integrates all essential components of CRC staging used in clinical practice. […]

The process of diagnosing colorectal cancer (CRC) involves a combination of histopathologic analysis, endoscopic evaluation, radiologic imaging, and selective laboratory testing. Accurate and timely identification is essential for optimal treatment and improved patient outcomes. This article provides a detailed overview of the initial investigations used to diagnose CRC, incorporating all key diagnostic components.   Histological […]

Colorectal cancer (CRC) remains one of the most common malignancies worldwide, and early detection plays a pivotal role in determining patient outcomes. One often overlooked but critical aspect of diagnosis is the presence and type of symptoms a patient exhibits at the time of detection. Multiple studies have explored how symptomatic presentation correlates with disease […]

Colorectal cancer (CRC) may present in a variety of ways, ranging from incidental findings during routine screening to emergency situations requiring immediate medical intervention. Understanding the spectrum of clinical presentations is critical for timely diagnosis and management.   1. Asymptomatic Presentation A significant proportion of CRC cases are diagnosed in asymptomatic individuals undergoing routine screening […]

Colorectal cancer (CRC) is a significant health concern worldwide, ranking as one of the leading causes of cancer-related deaths. While environmental factors and lifestyle choices play critical roles in the development of CRC, genetic predispositions are also crucial. Various inherited genetic conditions markedly increase the risk of developing colorectal cancer. This article explores some of […]