The specimen consists of one lobectomy specimen measuring 13.0 x 9.0 x 4.0 cm. There is a mass under the pleural surface with some retraction of the pleura. Sectioning through the specimen reveals one peripheral nodule under the peripheral surface measuring 3.0 x 2.0 x 2.5 cm. The tumor is well demarcated. The cut surface is gray-tan and brown. The tumor is 2.5 cm from the lobar bronchus.

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Source: Department of Pathology, Creighton University Medical Center, Omaha, NE

Photo: Zenggang Pan

Discussion: Zenggang Pan