Fig. 4From: Lymph node cancer of the mediastinum with a putative necrotic primary lesion in the lung: a case reportImmunohistochemical findings of the pulmonary nodule. Immunostaining results of the necrotic tissue were positive for pan-cytokeratin (AE1/AE3) and napsin A (a pan-cytokeratin immunostaining; b napsin A immunostaining)Back to article page