Immunohistochemical studies of various antigens and genetic studies of KIT and platelet-derived growth factor-α (PDGFRA) have not been performed in gastric SCC.
The present case is the first of small cell carcinoma of the maxillary sinus with a comprehensive immunohistochemical examination and a gene analysis of KIT and PDGFRA.
The present case is the first reported case of primary small cell carcinoma of the pleura with an examination of KIT and PDGFRA expressions and KIT and PDGFRA gene mutations.
The present case is the first reported case of primary small cell carcinoma of the endometrium with an examination of KIT and PDGFRA expressions and KIT and PDFGRA gene mutations.
The present case is the first case of primary small cell carcinoma of the urinary bladder involving examination of KIT and PDGFRA expression and KIT and PDGFRA gene mutations.
The present case is the first reported case of primary small cell carcinoma of the mediastinum with an examination of KIT and PDGFRA expressions and KIT and PDFGRA gene mutations.
Also, KIT is expressed in pulmonary and other small cell carcinomas, adenoid cystic carcinoma, renal chromophobe carcinoma, thymic, and some ovarian and few breast carcinomas.