Pathology report of right shoulder mass:

MACROSCOPIC DESCRIPTION: "(R) shoulder": Multiple pale tan tissue fragments up to 20mm. A1. (KAL)

MICROSCOPIC DESCRIPTION: Sections show multiple cores of tissue which is largely replaced by tumour. The tumour consists of sheets of malignant basaloid epithelial cells which have prominent areas of necrosis.

DIAGNOSIS: Right shoulder: Malignant. Features in keeping with a metastatic basaloid squamous cell carcinoma. The previous diagnosis of a basaloid squamous cell carcinoma has been noted.