Physical Carcinogens and Radiations Quiz
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Questions and Answers

Which type of radiations can cause double-strand DNA breaks and chromosomal aberrations?

  • UV radiations
  • Radioactive radiations
  • Ionizing radiations (correct)
  • Non-ionizing radiations

What specific cancers show a significant increase in incidence among individuals exposed to ionizing radiations?

  • Brain, liver cancers
  • Thyroid, lung, breast cancers (correct)
  • Prostate, ovarian cancers
  • Colorectal, pancreatic cancers

Which condition involves a defect in the nucleotide excision repair system, leading to an increased predisposition to skin cancer?

  • Psoriasis
  • Vitiligo
  • Xeroderma pigmentosum (correct)
  • Eczema

Which virus is considered a causative agent of human cancer?

<p>HTLV-1 virus (D)</p> Signup and view all the answers

What is the process where v-onc is reversed transcribed to DNA in retroviruses?

<p>Reverse transcription (B)</p> Signup and view all the answers

Which suffix is commonly used for malignant neoplasms arising from mesoderm?

<p>Sarcoma (C)</p> Signup and view all the answers

What type of tumor is melanoma?

<p>Skin tumor (A)</p> Signup and view all the answers

Which term refers to a malignant proliferation of leukocytes?

<p>Leukemia (C)</p> Signup and view all the answers

In tumor nomenclature, what does the prefix 'Osteo-' indicate?

<p>Bone (D)</p> Signup and view all the answers

Which type of tumor carries the eponym 'Burkitt lymphoma'?

<p>Lymphoma (C)</p> Signup and view all the answers

Which type of dissemination is described when malignant neoplasms penetrate into a natural 'open field'?

<p>Transcoelomic dissemination (D)</p> Signup and view all the answers

What is the term used to describe liver metastases originating from colorectal cancer that drain via the portal circulation?

<p>Metastasis via lymphatics (A)</p> Signup and view all the answers

Which LN is typically referred to as the 'sentinel lymph node' in the context of cancer?

<p>3rd LN free of tumor (A)</p> Signup and view all the answers

What is the process by which malignant tumors penetrate into adipose tissue and small veins known as?

<p>Metastasis via lymphatics (C)</p> Signup and view all the answers

Which type of tissue changes, though not cancerous, can potentially develop into cancer if non-physiological?

<p>Hyperplasia (D)</p> Signup and view all the answers

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