caa a22 4500 46319909X CHVBK 20180406164931.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s00276-006-0165-1 doi (NATIONALLICENCE)springer-10.1007/s00276-006-0165-1 The pyramidal lobe: clinical anatomy and its importance in thyroid surgery [Elektronische Daten] [Eva Braun, Gunther Windisch, Gerhard Wolf, Lisa Hausleitner, Friedrich Anderhuber] The pyramidal lobe could be a source of pitfalls in thyroidectomy, due to its frequency but unreliable preoperative diagnosis on scintigraphic images. Special attention has to be paid to the pyramidal lobe to avoid leavings of residual tissue when complete removal of the thyroid is indicated. Sixty cadaveric specimens were examined with special emphasis to the topographical anatomy and expansion of the pyramidal lobe. A pyramidal lobe was found to be present in 55% of the cadavers (32/58). It was found more frequently in men than in women. In men the median length was 14mm and in women 29mm. An accessory thyroid gland was present in one specimen, in four cases the isthmus was missing. The pyramidal lobe branched off more frequently from the left part of the isthmus (16) than from the right (7) or the midline (9). In two cases it originated from the left lobe. Additionally 23 scintigraphic images were analyzed to evaluate the visualization of a pyramidal lobe. Only three of them showed enlargements of the isthmus that could be taken as a pyramidal lobe. Due to its frequency the pyramidal lobe should be regarded as a normal component of the thyroid. It is not reliably diagnosed by scintigraphic imaging because scintigraphy can only give functional information but not morphological one. Therefore the anterior cervical region has to be investigated very carefully during operation in order not to leave residual thyroid tissue in total thyroidectomy. Springer-Verlag, 2006 Thyroid gland nationallicence Pyramidal lobe nationallicence Anatomy nationallicence Thyroidectomy nationallicence Scintigraphy nationallicence Braun Eva Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut Windisch Gunther Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut Wolf Gerhard Department of General Surgery, Division of Endocrine Surgery, Medical University Graz, Auenbruggerplatz 29, 8036, Graz, Austria aut Hausleitner Lisa Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut Anderhuber Friedrich Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut Surgical and Radiologic Anatomy Springer-Verlag 29/1(2007-02-01), 21-27 0930-1038 29:1<21 2007 29 276 https://doi.org/10.1007/s00276-006-0165-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00276-006-0165-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Braun Eva Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Windisch Gunther Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Wolf Gerhard Department of General Surgery, Division of Endocrine Surgery, Medical University Graz, Auenbruggerplatz 29, 8036, Graz, Austria aut NATIONALLICENCE 700 1- Hausleitner Lisa Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Anderhuber Friedrich Institute of Anatomy, Medical University Graz, Harrachgasse 21, 8010, Graz, Austria aut NATIONALLICENCE 773 0- Surgical and Radiologic Anatomy Springer-Verlag 29/1(2007-02-01), 21-27 0930-1038 29:1<21 2007 29 276 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer