Qap (Anatomical Pathology) 

QAP Peer Review

AP160
Case History: F/49, history of NPC with irradiation in 1985. Noticed left nasal mass for a month.
Intended diagnosis: Post-irradiation sarcoma. Contributed by:IOLN
Code Diagnosis Comment Score
anonymous Post-irradiation osteosarcoma (100%) nil  100
anonymous Post-irradiation osteosarcoma (100%) nil  100
anonymous Left Nasal cavity: chordoma associated with a high grade chondrosarcoma?–Dedifferentiated chordoma nil  70
anonymous Post-irradiation sarcoma, consistent with osteosarcoma. 100% nil  100
anonymous Consistent with post-irradiation sarcoma (with suggestion of osteosarcomatous areas) nil  100
anonymous POST-IRRADIATION OSTEOSARCOMA. 100% nil  100
anonymous Post-irradiation sarcoma.(100%) nil  100
anonymous Nasal mass - osteogenic sarcoma 100% According to the timing and location, this sarcoma is most probably causally related to previous radiation therapy for NPC.  100
anonymous Post irradiation sarcoma, 100% Chrondroid areas are present on the slide, but need more extensive sampling to look for features of differentiation, for e.g. unequivocal osteoid forming areas should suggest a diagnosis of post irradiation osteosarcoma.  100
anonymous post-irradiation sarcoma nil  100
anonymous Postradiation chondrosarcoma (80%) Odontogenic tumor (20%) There are present of calcification with concentric lamellar appearance and dentin matrix like material.  80
anonymous Post-Irradiation Sarcoma (100%) nil  100
anonymous Favour benign Inflammatory/metaplastic polyp 67% To exclude malignant mesenchymal neoplasm/ radiation induced  10
anonymous (postirradiation) osteosarcoma 100% nil  100
anonymous Secondary osteosarcoma nil  100
anonymous Irradiation induced osteosarcoma. Probability: 100% nil  100
anonymous Post-irradiation sarcoma 100% Features of chondrosarcoma and osteosarcoma are present.  100
anonymous post-irradiation osteosarcoma nil  100