Machens A, Dralle H. Correlation between the number of lymph node metastases and lung metastasis in papillary thyroid cancer. J Clin Endocrinol Metab. 2012;97:4375-82 pubmed publisher
..4 (N1b), and from 9.9-13.8 (for 1-20 lymph node metastases) to 4.7 (N1a). In PTC, categories of 0, 1-20, and more than 20 lymph node metastases correlate better with lung metastasis than current TNM N categories N0, N1a, and N1b. ..
Machens A, Elwerr M, Schneider R, Lorenz K, Dralle H. Disease impacts more than age on operative morbidity in children with Graves' disease after total thyroidectomy. Surgery. 2018;164:993-997 pubmed publisher
..Disease impacts more than age on operative morbidity in children with Graves' disease after total thyroidectomy but is fairly low overall and rarely permanent in experienced hands. ..
Machens A, Lorenz K, Dralle H. Histology-proven recurrence in the lateral or central neck after systematic neck dissection for medullary thyroid cancer. Endocrine. 2018;61:428-439 pubmed publisher
..Patients not biochemically cured, specifically those with extranodal growth at the initial operation, carry greater risks of node recurrence. ..
Machens A, Dralle H. Outcome after thyroid surgery for metastasis from renal cell cancer. Surgery. 2010;147:65-71 pubmed publisher
..In this setting, extensive surgery aimed at preventing local complications should be embedded in a systemic treatment concept. ..
Machens A, Dralle H. Multiple endocrine neoplasia type 2: achievements and current challenges. Clinics (Sao Paulo). 2012;67 Suppl 1:113-8 pubmed
..In this setting, functional characterization of mutant cells in vitro may generate helpful ancillary evidence with regard to the pathogenicity of gene variants in comparison with established mutations. ..
Machens A, Dralle H. Biomarker-based risk stratification for previously untreated medullary thyroid cancer. J Clin Endocrinol Metab. 2010;95:2655-63 pubmed publisher
..Most newly diagnosed MTC patients, i.e. those with pretherapeutic basal calcitonin levels greater than 200 pg/ml, may need bilateral compartment-oriented neck surgery to reduce the number of reoperations. ..
Machens A, Lorenz K, Dralle H. Individualization of lymph node dissection in RET (rearranged during transfection) carriers at risk for medullary thyroid cancer: value of pretherapeutic calcitonin levels. Ann Surg. 2009;250:305-10 pubmed publisher
..The usefulness of calcitonin thresholds to break down the block of carriers with increased calcitonin levels should be explored further. ..
Machens A, Hauptmann S, Dralle H. Lymph node dissection in the lateral neck for completion in central node-positive papillary thyroid cancer. Surgery. 2009;145:176-81 pubmed publisher
..These histopathologic associations may provide a foundation for more evidence-based decisions regarding lymph node dissection of the lateral neck compartments in patients with node-positive papillary thyroid cancer. ..
Machens A, Hauptmann S, Dralle H. Disparities between male and female patients with thyroid cancers: sex difference or gender divide?. Clin Endocrinol (Oxf). 2006;65:500-5 pubmed
..Our data emphasize the need for earlier diagnosis and intervention in male patients to ensure that male sex will cease sometime to constitute an ominous prognostic marker of advanced thyroid cancer. ..