A Giant Parathyroid Tumor during Pregnancy: Adenoma versus Carcinoma

Figure 1

The tumor has red brown solid part and a cystic space grossly (a). It has a thick fibrous capsule (blue arrow) and cystic space (yellow star) (b), bizarre atypical cells (c), and vascular proliferation (d). It also shows extensive foreign body type reactions surrounding the capsule (yellow star) and entrapped groups of normal appearing parathyroid cells (blue arrows) (e). There is adherence of strap muscles (yellow arrow) to the capsule and a possible needle tract from previous FNA (blue arrow) (f). Magnification for (b) is X20; (c), (d) X100; and (e), (f) X40.

(a)

(b)

(c)

(d)

(e)

(f)