Qap (Anatomical Pathology) 

QAP Peer Review

AP277
Case History: F/25 Right temporal tumour.
Intended diagnosis: Hemangiopericytoma. Contributed by:PKH
Code Diagnosis Comment Score
anonymous Haemangiopericytoma. (100%) CD34 positive, EMA negative  100
anonymous Atypical SFT nil  80
anonymous Haemangiopericytoma. 100% To be confirmed by CD34, CD99.  100
anonymous Hemangiopericytoma nil  100
anonymous Hemangiopericytoma. Reticulin hightlights dense pericellular reticulin. CD34+ and CD31 highlights vessels.  100
anonymous Solitary fibrous tumor/hemangiopericytoma.(100%) Do CD34 stain to help in diagnosis of solitary fibrous tumor.  100
anonymous Right temporal brain tumour - haemangiopericytoma 100% nil  100
anonymous Hemangiopericytoma >90%, Differential diagnoses: Solitary fibrous tumor (<10%), synovial sarcoma, monophasic (<10%) More sampling of tumor to see any other patterns. Immunostaining for CD34 (SFT usually positive), cytokeratin and EMA (positive in synovial sarcoma)  100
anonymous Haemangiopericytoma. 100%. nil  100
anonymous Anaplastic hemangiopericytoma, WHO grade III. nil  90
anonymous BRAIN, right temporal tumour - HEMANGIOPERICYTOMA nil  100
anonymous Anaplastic hemangiopericytoma (100%) nil  90
anonymous Hemangiopericytoma of meninges nil  100
anonymous hemangiopericytoma (100%) nil  100
anonymous Favour high grade tumour with necrosis, ddx: hemangiopericytoma, sarcoma nil  50
anonymous Hemangiopericytoma. nil  100