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Related Concept Videos

Peptic Ulcer Disease III: Clinical Manifestations and Complications01:25

Peptic Ulcer Disease III: Clinical Manifestations and Complications

Duodenal UlcersDuodenal ulcers are the most common form of peptic ulcer disease, presenting with chronic, intermittent epigastric pain. Pain typically appears 2–3 hours after meals, especially when the stomach is empty, often waking patients at night. It is characteristically relieved by food or antacids (“pain–food–relief”). Some patients remain asymptomatic until complications like bleeding or perforation emerge, particularly with NSAID or anticoagulant use.Gastric UlcersGastric ulcers share...
Standards of Care II01:19

Standards of Care II

Nurses bear specific legal responsibilities under several federal statutes, including:
Peptic Ulcer Disease V: Surgical Management and Nursing Care01:25

Peptic Ulcer Disease V: Surgical Management and Nursing Care

Surgical management and nursing care are crucial in treating Peptic Ulcer Disease (PUD). Here is an organized and enhanced overview of the surgical interventions and the associated nursing care for PUD:
Surgical Interventions for Peptic Ulcer Disease
Standards of Care I01:22

Standards of Care I

Federal statutes profoundly impact nursing practice, providing critical guidelines to ensure patient care is equitable, accessible, and of the highest quality. The following laws address distinct aspects of healthcare provision and patient rights:
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
Nursing Interventions II: Selecting and Classifying the Nursing Interventions01:29

Nursing Interventions II: Selecting and Classifying the Nursing Interventions

Creating and executing a nursing diagnosis helps nurses plan care and guide patient, family, and community interventions. They are developed based on a patient's physical evaluation and support measuring the outcomes. It is not recommended to select random interventions throughout the planning process. Instead, consider the following six essential factors when choosing interventions:

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Related Experiment Video

Updated: May 26, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

NCCN Clinical Practice Guidelines Occult primary.

David S Ettinger, Mark Agulnik, Justin M M Cates

    Journal of the National Comprehensive Cancer Network : JNCCN
    |December 14, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Cancers of unknown primary (CUPs) present with metastatic tumors where the primary site is unidentified. While often aggressive and poorly responsive to treatment, certain CUPs may benefit from individualized chemotherapy strategies.

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    Last Updated: May 26, 2026

    Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
    06:46

    Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

    Published on: September 27, 2024

    Area of Science:

    • Oncology
    • Pathology
    • Medical Diagnostics

    Background:

    • Occult primary tumors, or cancers of unknown primary (CUPs), are histologically confirmed metastatic cancers where the primary tumor site remains elusive after initial evaluation.
    • These cancers present diverse clinical symptoms, frequently including non-specific signs like anorexia and weight loss, and are characterized by early dissemination and aggressive behavior.
    • The prognosis for most patients with CUPs is poor, with a median survival typically ranging from 6 to 9 months, and conventional systemic treatments often yield limited long-term benefits.

    Purpose of the Study:

    • To define cancers of unknown primary (CUPs) and outline their clinical characteristics, prognostic factors, and treatment challenges.
    • To highlight the potential for improved outcomes in specific patient subsets through specialized diagnostic and therapeutic approaches.
    • To emphasize the importance of individualized treatment strategies for CUPs.

    Main Methods:

    • Review of clinical presentations and diagnostic challenges associated with occult primary tumors.
    • Analysis of prognostic indicators and survival data for patients diagnosed with CUPs.
    • Evaluation of the efficacy of systemic treatments, including chemotherapy, in managing CUPs.

    Main Results:

    • Occult primary tumors are characterized by early metastasis, aggressive tumor biology, and unpredictable spread patterns.
    • Most CUPs are refractory to standard systemic therapies, with chemotherapy offering primarily palliative benefits rather than significant long-term survival improvements.
    • Certain clinical presentations and specific tumor types identified through advanced pathology studies are associated with a more favorable prognosis and better response to chemotherapy.

    Conclusions:

    • Occult primary tumors represent a significant clinical challenge due to their aggressive nature and poor response to conventional treatments.
    • Identifying subsets of CUPs that are more amenable to specific therapies is crucial for improving patient outcomes.
    • Individualized treatment plans, informed by specialized pathological evaluation, are essential for optimizing response and survival rates in selected patients with cancers of unknown primary.