[OA-33] Histopathological and clinical study between primary adnexal carcinoma with pagetoid spreading and extramammary Paget disease

Extramammary Paget disease (EMPD) is rare. When EMPD with invasive carcinoma is identified, primary adnexal carcinoma (PAC) is a main differential diagnosis. We aimed to compare difference of histopathology and prognosis of EMPD with invasion and PAC. Haematoxylin and eosin – stained sections of EMPD with invasive carcinoma between 2006 and 2021 were classified into ...

Author : Warit Chongkolwatana, Panitta Sittinamsuwan, Suchanan Hanamournroongruang, Ngoentra Tantranont, Kanapon Pradniwat, Thitipat Hansomwong, Vuthinun Achariyapota, Penvadee Pattanaprichakol, Voraparee Suvannarerg
Keyword : adnexal carcinoma, extramammary Paget disease, pagetoid spreading
Category : Brief communications

A practical approach to undifferentiated tumors: A review on helpful markers and common pitfalls

The term “undifferentiated” tumor is commonly used by pathologists when a tumor lacking evidence of lineage differentiation on the basis of routine light microscopic morphology is encountered. Immunohisto- chemistry plays an important role in elucidating the true nature of the undifferentiated tumor that is crucial for clinical management....

Author : Kanapon Pradniwat, MD, Jitsupa Treetipsatit, MD
Keyword : round cell tumors, undifferentiated tumors
Category : Special Articles