Small cell lung cancer with panhypopituitarism due to ectopic adrenocorticotropic hormone syndrome: A case report

Figure 2 Immunohistochemical stainings of the hilar mass tissue biopsy sample. A, B: HE staining detected small cells with hyperchromatic nuclei and minimal cytoplasm. Both spindly and lymphocytoid cancer cells were observed. Magnification, 100× and 400×, respectively; C, D: Immunohistochemical staining was also performed and focal positive staining for chromogranin A (C) and adrenocorticotropic hormone (D) were detected.