( ( ( A ( radical resection ) ) ( of ( ( ( the ( malignant ( parathyroid gland ) ) ) and ) ( the ( ipsilateral ( thyroid lobe ) ) ) ) ) ) ( ( was ( performed ( in ( ( ( two cases ) , ) ( while ( only ( ( ( a resection ) ( of ( the ( ( involved parathyroid ) gland ) ) ) ) ( in ( one case ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (JJ radical) (NN resection)) (PP (IN of) (NP (NP (DT the) (JJ malignant) (JJ parathyroid) (NN gland)) (CC and) (NP (DT the) (JJ ipsilateral) (NN thyroid) (NN lobe))))) (VP (VBD was) (VP (VBN performed) (PP (IN in) (NP (NP (CD two) (NNS cases)) (, ,) (SBAR (IN while) (S (ADVP (RB only)) (NP (NP (DT a) (NN resection)) (PP (IN of) (NP (DT the) (ADJP (JJ involved) (JJ parathyroid)) (NN gland)))) (PP (IN in) (NP (CD one) (NN case))))))))) (. .)))
A radical resection of the malignant parathyroid gland and the ipsilateral thyroid lobe was performed in two cases, while only a resection of the involved parathyroid gland in one case.
(ROOT (S (NP (DT The) (CD two) (JJ parathyroid) (NNS glands)) (VP (VBP are) (VP (VBN located) (PP (IN behind) (NP (DT the) (NN thyroid) (NN gland))))) (. .)))