MCQ ----FOR PG EXAM

55.All are true regarding mature teratoma in mediastinum except

a.m/c germ cell tumour

b.mostly solid

c.may have fat

d.may have calcification

e.located in anterior mediastinum

57.All are true regarding mediastinal lymphnode calcification except

a. common following tuberculosis and fungal infection

b.  common in metastatic neoplasm

c. may be seen in lymph node metastases osteosarcoma, chondrosarcoma

d.  foamy appearance seen with Pneumocystis jiroveci  infection  in AIDS patients

e. eggshell calcification in sarcoidosis