|LETTER TO EDITOR
|Year : 2021 | Volume
| Issue : 2 | Page : 416-417
Thyroid inferno sign on color doppler: Pathognomic of graves disease
KB Harshith Gowda, Suresh V Phatak, Nishant Raj, Megha Mano
Department of Radio-Diagnosis, JNMC, Wardha, Maharashtra, India
|Date of Submission||15-Oct-2020|
|Date of Decision||22-Nov-2020|
|Date of Acceptance||31-Dec-2020|
|Date of Web Publication||18-Oct-2021|
Dr. Suresh V Phatak
Department of Radio-Diagnosis, JNMC, Sawangi (Meghe), Wardha - 442 001, Maharashtra
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Harshith Gowda K B, Phatak SV, Raj N, Mano M. Thyroid inferno sign on color doppler: Pathognomic of graves disease. J Datta Meghe Inst Med Sci Univ 2021;16:416-7
|How to cite this URL:|
Harshith Gowda K B, Phatak SV, Raj N, Mano M. Thyroid inferno sign on color doppler: Pathognomic of graves disease. J Datta Meghe Inst Med Sci Univ [serial online] 2021 [cited 2021 Nov 28];16:416-7. Available from: http://www.journaldmims.com/text.asp?2021/16/2/416/328467
We present ultrasonography (USG) and color Doppler findings of thyroid gland, exhibiting a pulsatile pattern called “thyroid inferno” in a case of Graves' disease. Graves' disease is an autoimmune disorder which is caused by stimulatory autoantibodies against the thyroid receptor for thyroid-stimulating hormone. This results in the continuous synthesis of excess of T4 and T3. A 30-year-old female presented with the complaints of weight loss, fatigue, increased heart rate, nervousness, and tremors. On examination, she had a warm, moist skin, and her pulse rate was 100 bpm and respiratory rate was 22/min. She was afebrile with a blood pressure of 126/84 mm/Hg. On USG Doppler and color Doppler, the thyroid gland was enlarged, was heterogeneous in echotexture [Figure 1], and was hypervascular showing multiple small areas of color flow, which were present diffusely throughout the gland [Figure 2].
|Figure 1: A homogenously enlarged right lobe showing heterogeneous echotexture. No cystic lesion or calcification noted|
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|Figure 2: Color Doppler with extremely vascular thyroid parenchyma showing thyroid inferno appearance due to arteriovenous shunting|
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“Thyroid inferno” is a distinct type of intra-thyroidal color flow pattern noted in patients with Graves' disease. It is a pulsatile type of color flow pattern, wherein multiple, small areas of flow are seen throughout the gland along with mild-to-pronounced color flow in the periphery of the gland. The inferno pattern is not seen in normal subjects or in patients with other thyroid diseases. It should be kept in mind that occasionally, there might be focal hypervascularity similar to a thyroid inferno in patients with Hashimoto's disease.
Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent forms. In the form, the legal guardian has given his consent for images and other clinical information to be reported in the journal. The guardian understands that names and initials will not be published and due efforts will be made to conceal identity, but anonymity cannot be guaranteed.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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Ralls PW, Mayekawa DS, Lee KP, Colletti PM, Radin DR, Boswell WD, et al
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. “Focal thyroid inferno” on color Doppler ultrasonography: A specific feature of focal Hashimoto's thyroiditis. Eur J Radiol 2012;81:3319-25.
[Figure 1], [Figure 2]