patho 5 - aimhigh

[ArchivalUser]

A 55-year-old patient presents with chronic cough. Chest x-ray demonstrates a coin lesion near the apex of
the
lung. CT-guided biopsy of the lesion demonstrates a malignant tumor arising in an area of scarred
lung. Which of
the following type of cancer is most likely to be present?
A. Adenocarcinoma
B. Bronchioloalveolar carcinoma
C. Large cell carcinoma
D. Oat cell carcinoma
E. Squamous cell carcinoma

[ArchivalUser]

got to go, i will post answers later

[ArchivalUser]

A. Adenocarcinoma...

[ArchivalUser]

A is right

[ArchivalUser]

a is correct

[ArchivalUser]

explanation please

[ArchivalUser]

sorry to be late The correct answer is A. Tumors that arise peripherally and can cause coin lesions include
adenocarcinoma
(choice A), bronchioloalveolar carcinoma (choice B), and large cell carcinoma (choice C). Of these,
adenocarcinoma is the form specifically associated with lung scarring related to old granulomatous
disease, old
chronic obstructive lung disease, or other old damage to the lungs.
Remember bronchioloalveolar carcinoma (choice B) as the one that is not associated with smoking.
Large cell carcinoma (choice C) is an aggressive, undifferentiated form of lung cancer.
Remember oat cell (small cell, choice D) carcinoma as the one that can commonly cause
paraneoplastic
syndromes such as SIADH and Cushing's syndrome.
You should associate squamous cell carcinoma of the lung (choice E) with hypercalcemia.