[Oradlist] {Disarmed} SV: {Disarmed} Re: Maxillary sinus: cone beam

[Lennart Flygare]

Dear Allan,

Here is my (mainly experience-based) input:

Calcifications or more precisely new-bone formation along the sinus walls is a common finding associated with long standing irritation in the sinus, usually chronic sinusitis. Also environmental agents can cause chronic irritation in the sinus and it seems reasonable to believe that such irritants should be able to cause bone formation although I don't have any scientific reference on that for you.
The calcifications seen in fungal sinusitis (mainly aspergillosis) tend to be loose calcified bodies embedded within the fungus ball. In these conditions it is also common to see bone destruction. In my opinion the case presented by you don't resemble fungal disease, at least not as we usually see it here at our hospital.
Sometimes long-standing mucus also becomes dessicated. This is usually the case when the sinus is totally filled and the desiccation is most often centrally placed in the sinus. In a CT with soft-tissue window-setting they may look like calcifications but not so in a bone-window setting which is the case with CBCT.
Another option would be foreign material but it doesn't look like it on your images.

In the case presented by you I would suspect reactive sclerosis due to chronic sinusitis - as there still is some mucus-like material in the bottom of the sinus. You call it hyperactivity of the periosteum and that, I guess, is just another way to put it.


Best wishes

Lennart


------------------------------
Lennart Flygare, Odont Dr
Sektionschef Odont. Rad
VO Radiologi/Fysiologi
Sunderby Sjukhus
971 80 Luleå
tel: 0920-282931
fax: 0920-282942

________________________________
Från: oradlist-bounces at lists.ucla.edu [mailto:oradlist-bounces at lists.ucla.edu] För Allan Abuabara
Skickat: den 1 november 2008 10:39
Till: Oral Radiology Discussion Group
Ämne: {Disarmed} Re: [Oradlist] Maxillary sinus: cone beam

These calcifications in the maxillary sinus can also be associated with some specific unhealthy work environment?

Allan.
On Fri, Oct 31, 2008 at 1:18 AM, Stuart C. White <swhite at dentistry.ucla.edu<mailto:swhite at dentistry.ucla.edu>> wrote:
Allan,

Such calcifications are often associated with fungal infections.  See American Journal of Neuroradiology 20:571-574 (4 1999) Calcification in Chronic Maxillary Sinusitis:Comparison of CT Findings with Histopathologic Results Jung Hwan Yoona, Dong Gyu NaGo,a, Hong Sik Byuna, Young Hye Koha, Seung Kyu Chunga and Hun-Jong Donga

Stu







On 10/30/08 6:35 PM, "Allan Abuabara" <MailScanner has detected a possible fraud attempt from "allan.abuabara at gmail.com" claiming to be allan.abuabara at gmail.com<http://allan.abuabara@gmail.com>> wrote:
Hello Dania,

very interesting. I never read about this. Thank you for your answer.  Do you have some literature reference?

Best regards.

Allan.

On Thu, Oct 30, 2008 at 11:27 PM, Dania Tamimi <MailScanner has detected a possible fraud attempt from "daniatamimi at hotmail.com" claiming to be daniatamimi at hotmail.com<http://daniatamimi@hotmail.com>> wrote:
Hello,

 Long standing mucous secretions within the maxillary sinus can calcify, sometimes appearing to run parallel to the floor of the sinus, as I suspect is the case here.

 Dania



________________________________

Date: Thu, 30 Oct 2008 23:06:07 -0200
From: MailScanner has detected a possible fraud attempt from "allan.abuabara at gmail.com" claiming to be allan.abuabara at gmail.com<http://allan.abuabara@gmail.com>
To: oradlist at lists.ucla.edu<http://oradlist@lists.ucla.edu>
Subject: [Oradlist] Maxillary sinus: cone beam



Dear colleagues

the radiopacity with bone tissue aspect on the floor of the maxillary sinus is a variation of normality or pathology? Look in the yellow arrows slices 21, 23 and 32.

I think in:
1) Septum / broken septum?
2: Hyperactivity of the periosteum?

What do you think?

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--
Allan
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