Journals / Gülhane Tıp Dergisi / 2007 / Cilt: 49 - Sayı: 1

Detection rate of pyramidal lobe on thyroid scintigraphies and its frequency in different thyroid pathologies

Tiroid sintigrafilerinde piramidal lobun saptanabilirliği ve çeşitli tiroid patolojilerindeki sıklığı

Pages
32–35
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The overall frequency of pyramidal lobe visualization is 10.7%, and its incidence in patients with Graves' disease significantly differes from those of other thyroid pathologies.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The pyramidal lobe of thyroid is known to carry a high recurrence risk of disease after surgery.
📊
Key Findings & Data:In this study Technetium-99m (Tc-99m) thyroid images were examined to determine the frequency of pyramidal lobe scintigraphic detection.
💡
Conclusion & Impact:The overall frequency of pyramidal lobe visualization is 10.7%, and its incidence in patients with Graves' disease significantly differes from those of other thyroid pathologies.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Tekrarlama · Tiroid hastalıkları · Geriyedönük çalışma

Abstract

The pyramidal lobe of thyroid is known to carry a high recurrence risk of disease after surgery. To determine the presence of pyramidal lobe before surgery is important. In this study Technetium-99m (Tc-99m) thyroid images were examined to determine the frequency of pyramidal lobe scintigraphic detection. The thyroid scintigrams of 4031 patients (3081 female, 950 male; mean age 43.41±11.06 years, range: 8-85 years) were evaluated retrospectively and classified as chronic thyroiditis, Graves' disease, hypoactive multinodular, hypoactive solitary nodular, active nodular goitre and normal thyroid gland. The frequency of pyramidal lobe in these groups was evaluated. Localization of pyramidal lobe and the relationship between the presence of pyramidal lobe and gender were determined. Pyramidal lobe was positive in 430 patients (10.7%). Of the patients with pyramidal lobe, 76.4% were women and 23.6% were men. The site of origin of the pyramidal lobe was from the right in 43.7%, from the left in 46.7% and from isthmus in 9.5% of the patients. Pyramidal lobe was positive on thyroid images in 20.4%, 11.2%, 14.5%, 2.6%, 0.8% and 10.6% of the patients with Graves' disease, chronic thyroiditis, hipoactive multinodular thyroid disease, hypoactive solitary nodular thyroid disease, active nodular thyroid disease and normal thyroid gland, respectively. The frequency of recurrent thyroid disease involving the pyramidal lobe after surgery highlights the importance of its detection using scintigraphy. Thyroid scintigraphy allows the easy identification of pyramidal lobe. The overall frequency of pyramidal lobe visualization is 10.7%, and its incidence in patients with Graves' disease significantly differes from those of other thyroid pathologies.

Özet

Tiroid cerrahisi sonrasında, tiroid piramidal lobunun hastalık nüksü açısından yüksek risk taşıdığı bilinmektedir. Cerrahi öncesinde piramidal lob varlığının belirlenmesi önemlidir. Bu çalışmada Teknesyum- 99m (Tc-99m) ile tiroid görüntüleri, piramidal lobun sintigrafik saptanabilirlik sıklığının belirlenmesi için değerlendirilmiştir. Tiroid sintigrafisi uygulanan 4031 hastanın (3081 kadın, 950 erkek; ortalama yaş: 43.41±11.06 yıl, yaş aralığı: 8-85 yıl) görüntüleri retrospektif olarak değerlendirildi ve sintigrafiler kronik tiroidit, Graves hastalığı, hipoaktif multinodüler, hipoaktif soliter nodüler, hiperaktif nodüler guatr ve normal tiroid bezi olarak gruplandırıldı. Bu gruplardaki piramidal lob sıklığı değerlendirildi. Piramidal lob lokalizasyonu ve piramidal lob varlığının cinsiyet ile ilişkisi belirlendi. Dörtyüz otuz hastada (%10.7) piramidal lob pozitif bulundu. Piramidal lobu olanların %76.4'ü kadın, %23.6'sı erkek idi. Piramidal lob hastaların %43.74'ünde sağ, %46.72'sinde sol ve %9.53'ünde istmustan köken almakta idi. Graves'li hastaların %20.4'ünde, kronik tiroiditi olan hastaların %11.2'sinde, hipoaktif multinodüler tiroid hastalığı olanların %14.5'inde, hipoaktif soliter nodüler tiroid hastalığı olanların %2.6'sında, hiperaktif nodüler hastalığı olanların %0.8'inde ve normal tiroid bezi olanların %10.6'sında tiroid görüntülerinde piramidal lob saptandı. Cerrahi sonrası piramidal lobu içeren nüks tiroid hastalığı sıklığı, sintigrafi ile piramidal lob saptanmasının önemini vurgulamaktadır. Tiroid sintigrafisi ile piramidal lob kolaylıkla saptanabilmektedir. Piramidal lobun sintigrafik saptanabilirlik sıklığı %10.7 olarak bulunmuştur. Graves hastalığında piramidal lob görülme sıklığı diğer tiroid durumlarına göre anlamlı farklılık göstermektedir

🔖

Cite This Article

TÜRKÖLMEZ, Ş., ÇAYIR, D., KORKMAZİ, M., KOCA, G., DEMİREL, K. (2007). Detection rate of pyramidal lobe on thyroid scintigraphies and its frequency in different thyroid pathologies. Gülhane Tıp Dergisi, Cilt: 49 - Sayı: 1, 32–35. https://ajindex.com/articles/226214

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (9)

  1. Allard RH. The thyroglossal cyst. Head Neck Surg 1982; 5: 134-146
  2. Sternberg JL. Sublingual pyramidal lobe. Complications of subtotal thyroidectomy for Graves' disease. Clin Nucl Med 1986; 11: 766-768
  3. Rosato L, Avenia N, Bernante P, et al. Complications of thyroid surgery: analysis of a multicentric study on 14,934 patients operated on in Italy over 5 years. World J Surg 2004; 28: 271-276
  4. Makeieff M, Rubinstein P, Youssef B, Crampette L, Guerrier B. Repeat surgery for thyroid nodules (excluding cancer and hyperthyroidism) Ann Chir 1998; 52: 970-977
  5. Izenstark JL, Forsaith AL, Horwitz NH. The pyramidal lobe in thyroid imaging. J Nucl Med 1969; 10: 519-524
  6. Atkins HL, Klopper JF, Lambrecht RM, Wolf AP. A comparison of Tc99m and I-123 for thyroid imaging. Am J Roentgenol Radium Ther Nucl 1973; 117: 195-201
  7. Paindakal SMK, Badshah M. Gamma camera imaging of the pyramidal lobe. J Pak Med Assoc 1980; 30: 87-88
  8. Gardner WU. The endocrine glands and unclassified organs. In: Anson BJ (ed). Morris' Human Anatomy. 12nd ed. London: McGraw-Hill, 1966: 1547-1589
  9. Çayır D, Ezer M, Türkölmez S, et al. The value of ultrasonography in the evaluation of the thyroid pyramidal lobe. Annual Congress of the EANM, 2006, Abstract Book, 33: 352. 10.Levy HA, Sziklas JJ, Rosenberg RJ, Spencer RP. Incidence of a pyramidal lobe on thyroid scans. Clin Mucl Med 1982; 7: 560-561. 11.Wahl R, Muh U, Kallee E. Hyperthyroidism with or without pyramidal lobe Graves' disease or disseminated autonomously functioning thyroid tissue? Clin Nucl Med1997; 22: 451-458. 12.Siraj QH, Aleem N, Inam-Ur-Rehman A, Qaisar S, Ahmad M. The pyramidal lobe: a scintigraphic assessment. Nucl Med Commun 1989; 10: 685-693.