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If cysts are filled with fluid, what are nodules filled with? Acne Question.

7 doctors weighed in
Dr. Sanjay Jain
Internal Medicine - Gastroenterology
2 doctors agree

In brief: Tissue

nodules usually have fleshy soft tissue

In brief: Tissue

nodules usually have fleshy soft tissue
Dr. Sanjay Jain
Dr. Sanjay Jain
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Dr. Lewis Hassell
Pathology
1 doctor agrees

In brief: Cysts Nodules

In the skin, a nodule would be a solid, firm structure that usually would be due to scarring from acne, though it could be a solid tissue such as a cancer in other settings.

In brief: Cysts Nodules

In the skin, a nodule would be a solid, firm structure that usually would be due to scarring from acne, though it could be a solid tissue such as a cancer in other settings.
Dr. Lewis Hassell
Dr. Lewis Hassell
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Dr. Ed Friedlander
Pathology
1 doctor agrees

In brief: Here's the facts

Cysts are by definition filled with fluid, and it's actually a misnomer -- acne "cysts" are actually filled with pus and lack the inner epithelium that defines a true cyst.
Nodules are inflamed areas without liquid, but are hard and swollen because blood vessels have released protein and a host of inflammatory cells, mostly neutrophils, are rampaging in the area. If bad enough, this becomes pus.

In brief: Here's the facts

Cysts are by definition filled with fluid, and it's actually a misnomer -- acne "cysts" are actually filled with pus and lack the inner epithelium that defines a true cyst.
Nodules are inflamed areas without liquid, but are hard and swollen because blood vessels have released protein and a host of inflammatory cells, mostly neutrophils, are rampaging in the area. If bad enough, this becomes pus.
Dr. Ed Friedlander
Dr. Ed Friedlander
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