Thyroid evaluation in patients with primary hyperparathyroidism.
We evaluated the efficacy of preoperative high-resolution ultrasonography (US) for diagnosing possible concomitant thyroid disease which affects the surgical management in patients with primary hyperparathyroidism (pHPT). One hundred and nine patients with sporadic pHPT underwent US with or without ultrasound-guided fine-needle aspiration biopsy (US-FNAB). Diagnosis of concomitant thyroid nodules by US and US-FNAB were compared with the histopathological findings. Of the 109 patients, 19 (17.4%) had malignant thyroid nodules, 26 (23.9%) had benign thyroid nodules alone, and 12 (11.0%) had diffuse goiter. The sensitivity, specificity, and accuracy of diagnosing 72 thyroid nodules were 91.3%, 91.8%, and 91.7% for US, 57.9%, 94.3%, and 81.5% for US-FNAB, and 95.7%, 91.8%, and 93.1% for combined US and US-FNAB, respectively. True positive/false negative ratio of US-FNAB diagnosis was significantly lower in nodules of 5-9 mm than nodules of 10 mm or more. Four unexpected thyroid cancers existed at a different site in 3 of the 39 patients with palpable thyroid disease. Five thyroid cancers were histopathologically confirmed in 5 (7.1%) of 70 patients without palpable thyroid disease. Eight (88.9%) of the 9 non-palpable thyroid cancers were accurately diagnosed by combined US and US-FNAB. Preoperative US is useful for evaluation of possible concomitant thyroid disease, especially for prediction of malignancy.
Masatsugu
Toshihiro
T
Noguchi Thyroid Clinic and Hospital Foundation, Beppu, Oita, Japan.
Yamashita
Hiroyuki
H
Noguchi
Shiro
S
Nishii
Ryuichi
R
Koga
Yutaka
Y
Watanabe
Shin
S
Uchino
Shinya
S
Yamashita
Hiroto
H
Ohshima
Akira
A
Kuroki
Syoji
S
Tanaka
Masao
M
D000236:Adenoma / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D002118:Calcium / Q000097:blood / Q000652:urine; D002291:Carcinoma, Papillary / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006042:Goiter / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D006111:Graves Disease / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D006961:Hyperparathyroidism / Q000150:complications* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010281:Parathyroid Hormone / Q000097:blood; D010710:Phosphates / Q000097:blood; D012680:Sensitivity and Specificity; D013959:Thyroid Diseases / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D013964:Thyroid Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D016606:Thyroid Nodule / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D013966:Thyroiditis / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D014463:Ultrasonography
D010281:Parathyroid Hormone; D010710:Phosphates; D002118:Calcium