Patho...Q - maryam2009

[ArchivalUser]

A patient with previously diagnosed lung cancer develops a large
pleural effusion. The effusion is tapped and demonstrates an unusual
milky white fluid that upon standing, separates into a thin white
layer over a thicker clear layer. The lipid content of the fluid is
high. This is most likely an example of which of the following?
A. Chylous effusion
B. Exudate
C. Fibrinous pleuritis
D. Fibrous pleuritis
E. Transudate

[ArchivalUser]

aa

[ArchivalUser]

A.. Chylous effusion

[ArchivalUser]

white milky fluid is occur in lymph obstruction than.... A is correct i think....

[ArchivalUser]

A

[ArchivalUser]

The correct answer is A.

The fluid is lymphatic fluid. A large tumor in the chest can damage the thoracic duct, allowing the chylomicron-rich lymphatic fluid from the abdomen to drain into the pleural cavity (chylothorax) rather than the vena cava.
Exudates (choice B) are fluids produced by lesions such as bacterial infections that contain more protein than does serum; transudates (choice E) are filtrates of serum.
Fibrinous pleuritis (choice C) is characterized by deposition of fibrin on the pleural surface.
Fibrous pleuritis (choice D) is characterized by deposition of collagen and formation of connective tissue along the pleural membranes.