Teratomas: Abnormal or Normal-Sized Pieces?

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Discussion Overview

The discussion revolves around the characteristics of teratomas, specifically focusing on the size of abnormal tissues such as teeth and jawbones found within these tumors. Participants explore whether these structures grow to normal dimensions or if they are typically of abnormal size, considering the implications for their development and resemblance to functional body parts.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether teeth and jawbones in teratomas grow to normal size or if they are usually of abnormal dimensions, citing rare cases of partially formed jawbones.
  • Another participant notes that while some tissues in teratomas can appear "normal," they do not function as they would in a typical anatomical context, and large teratomas can be fatal.
  • A participant clarifies their interest specifically in the size of teeth and jawbones, asking if they tend to be smaller, larger, or vary randomly, independent of the tumor's origin.
  • One participant suggests that many structures found in teratomas are embryonic-sized and smaller than normal, sharing their observations from medical museums, but they have not seen full-sized jaw structures.

Areas of Agreement / Disagreement

Participants express differing views on the size of teeth and jawbones in teratomas, with no consensus reached on whether these structures typically resemble normal dimensions or not.

Contextual Notes

Participants have not established clear definitions for "normal size" or "abnormal dimensions," and the discussion lacks detailed empirical evidence regarding the size of specific structures within teratomas.

guywithdoubts
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Do pieces such as teeth grow to normal size in teratomas, or are they usually of abnormal dimensions? I have read of rare cases where (at least partially formed) jawbones were found in the tumor, but how much do they resemble the actual, functional body parts of the patient?
 
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Based on the way you asked your question I'm guessing that terms like germ layer and gastrulation are not going to help.

Yes, some "organs" or tissues found to out of place (in teratomas) can look "normal". But out of place tissues and organs cannot "function" in the sense they ordinarily would. And really large teratomas are generally fatal. The embryo does not develop and dies. Or dies soon after birth.

What question are you really asking?
 
Oh I know they don't function and can be fatal. I'm just wondering about the size of teeth and jawbones in teratomas. Are they the same size of regular teeth and jawbones, or do they tend to be smaller/larger, or may they grow to any random size? I'm asking independently of the tumor in/from which they grow. Finding a picture of a tooth in a tumor is quite easy but I don't get a sense of dimension.
 
A lot of those things are embryonic sized, smaller than than "normal". I'm not an expert on this kind of thing, just basing it on what I've seen in medical museums like the one at the Armed Forces Institute of Pathology. I never saw a full-sized jaw, for example.
 

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