Anatomic features can be helpful, such as pointed end (upper pole), convex (anterolateral) and concave (posterior) surfaces, attached muscle (anterior), cauterized transected surface (isthmus).Identify and mark on gross photo upper and lower poles, medial (isthmic) side, anteriolateral and posterior surfaces.Inking is not necessary if proper 3D mapping is done during grossing see Sampling gross images below ( Japanese Society of Thyroid Surgery: General Rules for the Description of Thyroid Cancer, 7th Edition, 2015). Chart with ultrasound mapping can be supplied.Tumor / nodule size is best measured by sonography - refer to clinical records ( Eur Thyroid J 2017 6:315).Large specimens (> 4 cm nodules) can be infiltrated with fixative using syringe ( Japanese Society of Thyroid Surgery: General Rules for the Description of Thyroid Cancer, 7th Edition, 2015).
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