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Re: overdiagnosis and liability by wombat ..... Iodine Supplementation Support by VWT Team

Date:   11/12/2012 11:23:18 AM ( 12 y ago)
Hits:   4,046
URL:   https://www.curezone.org/forums/fm.asp?i=2005604

 

I don't know what sort of Cancer Brooke Burke has, but there is a very real possibility that she is being overdiagnosed. Follow link for complete text:
 
171.67.112.51/content/117/1/19.full.pdf
 
 
A story is told by Juan Rosai about an atypical 
melanocytic lesion sent to him in consultation from a patholo- 
gist friend in private practice.
 
After a long study, Dr Rosai 
decided it was benign. His friend thanked him for his opinion, 
but told him that he was still going to diagnose it as malignant 
melanoma. He said that if he called it melanoma and it never 
came back, everyone would be happy that the patient was 
cured. If he called it benign and it came back, then he would 
end up in court.
 
This is the dilemma that faces the practicing 
pathologist every day. The tendency to “overdiagnose” seems 
to be inevitable as long as there is a surfeit of aggressive, 
unforgiving malpractice attorneys as well as pathology experts 
and a limited risk to the “overdiagnosis.” 
 
This tendency to overdiagnose clearly is accentuated in 
private practice. Fueled by the perception that private practi- 
tioners are not as good as their academic counterparts, cases in 
growing numbers are being referred to the university setting 
for a second opinion, sometimes years after the case originally 
was signed out. If the diagnosis from this second opinion on a 
thyroid nodule is malignant when the original diagnosis was 
benign, the ramifications can be quite devastating. While there 
certainly are benefits to second opinions,1and we are in no 
way arguing against them, the unintended result of this prac- 
tice is to render the private pathologist more vulnerable, more 
prone to litigation, and more likely to overdiagnose. Defensive 
pathology is now so ingrained in the psyche of most private 
pathologists that it has become second nature. 
The purely follicular variant of papillary thyroid carci- 
noma (PTC) described by Lindsay in 19602and later popular- 
ized by Chen and Rosai3and Rosai et al4is now well accepted. 
The nuclear features have become tantamount to papillary 
structures in the diagnosis of PTC. The nuclear features 
include the following: (1) overlapping ground-glass, optically 
clear, or “Orphan Annie” nuclei and (2) nuclear pseudoinclu- 
sions and grooves, which represent cytoplasmic invaginations 
into the nucleus. Despite the universal recognition of this 
variant, it is not well characterized. The conventional PTC is 
classically an invasive tumor even when the majority of it is 
composed of follicles. The purely follicular variant of PTC on 
the other hand is often well circumscribed and encapsulated.4 
What clearly is lacking is a minimal histologic definition of the 
follicular variant of PTC. Is an occasional grooved nucleus 
with pale chromatin in a follicular neoplasm enough to warrant 
a diagnosis of malignancy? Should the nuclear changes be 
uniformly present throughout the nodule? Are the nuclear 
changes that we are seeing significant or are they the “pseudo- 
clear nuclei” described by Hapke and Dehner in the 1970s?5 
At present, there are only a few long-term follow-up 
studies (totaling only 107 patients, as nicely summarized by 
Chan6) of the encapsulated follicular variant of PTC. While it 
is true that only 1 of these 107 patients died of disease,7more 
than 25% of these patients had regional lymph node metas- 
tases. In addition, a recent study by Baloch and LiVolsi8 
described 5 cases in which the encapsulated follicular variant 
of PTC manifested as an occult primary with metastatic 
disease, or in which bone metastases appeared many years 
after resection, and invasion in the primary lesion was subtle 
enough to be overlooked. Another study documented rare 
clinical progression (lymph node metastases) in the macrofol- 
licular variant of PTC despite the fact that the dominant 
cytology and architecture of the primary tumor very closely 
resembled goiter.9In summary, although the follicular variant 
of PTC usually behaves in a very indolent fashion, it rarely 
can cause distal metastasis. Furthermore, the follicular variant... 

 


 

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