– 9 yr old FS Boxer with history of confirmed mammary carcinoma diagnosed this past December

– new mass found in region of left thyroid gland – FNA showed brownish fluid and cytology consistent with a cyctsic structure with low cellularity

– u/s of neck shows a cystic structure in the region of the L thyroid gland – normal gland cound not be found

– the right thyroid gland is normal

– I had a case once where cystic structures were found in the neck and were removed and shown to be ectopic thyroid carcinoma

– 9 yr old FS Boxer with history of confirmed mammary carcinoma diagnosed this past December

– new mass found in region of left thyroid gland – FNA showed brownish fluid and cytology consistent with a cyctsic structure with low cellularity

– u/s of neck shows a cystic structure in the region of the L thyroid gland – normal gland cound not be found

– the right thyroid gland is normal

– I had a case once where cystic structures were found in the neck and were removed and shown to be ectopic thyroid carcinoma

– would this be concerning for thyroid carcinoma, parathyroid neoplasia, other?