Dual-site thyroid ectopy in a mother and son.
We found familial thyroid ectopy in a mother and son, each of whom had an anterior neck mass corresponding to a perihyoid ectopic thyroid. In addition, technetium scintigraphy revealed another focus of aberrant uptake at their tongue roots. Neither patient showed hypothyroid symptoms or abnormal biochemical data other than a mildly elevated TSH level in the son. No other member of the family had a thyroid disorder. To our knowledge this is the first documented instance of familial thyroid ectopy in multiple sites. The observed similarity in distribution of ectopic tissue suggests a hereditary pathogenic factor.
Misaki
T
T
Department of Nuclear Medicine, Kyoto University School of Medicine, Japan.
Koh
T
T
Shimbo
S
S
Kasagi
K
K
Konishi
J
J
D000328:Adult; D002648:Child; D002828:Choristoma / Q000000981:diagnostic imaging* / Q000235:genetics* / Q000473:pathology; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D011877:Radionuclide Imaging; D013961:Thyroid Gland / Q000503:physiopathology; D014062:Tongue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology