Incidence of adrenal gland tumor as a second primary malignancy: SEER-based study

Advances in cancer treatment achieved during the past decades have resulted in increased survival of most pediatric and adult patients that suffered from different adrenal tumor types. This article reviews the incidence and survival of adrenal gland tumors as second primary tumors, according to data from the Surveillance, Epidemiology, and End Results (SEER) database.

The SEER 13 Registries Database from 1992 to 2013 was used. All primary cancer sites were selected using the Multiple Primary Standardized Incidence Ratios (MP-SIR) session.

Data for a total of 2,887,468 persons with cancer were reviewed. 117 of whom had suffered second primary adrenal tumors. The overall standardized incidence ratio (SIR) of adrenal gland tumor as a second primary was 1.49. A high incidence ratio of the event was also detected in specific primary tumor sites: hypopharynx (Observed/Expected(O/E) = 44.59); other endocrine tissue (including the thymus) (O/E=38.27); chronic myeloid leukemia (O/E=11.15); small intestine (O/E=8.86); liver (O/E=8.74); stomach (O/E=4.95); nodal NHL (O/E=3.79); kidney and renal pelvis (O/E=3.19); and breast (O/E=1.78).

The underlying shared mechanisms should be investigated between adrenal tumors and hypopharyngeal, endocrine and other tumors. Racial disparity is an important challenge in cancer treatment at US and should be taken into consideration in the design of cancer prevention programs. This could be achieved through follow-up programs at specialized national cancer networks, especially for rare tumors like adrenal gland.

Endocrine connections. 2018 Aug 23 [Epub ahead of print]

Wafaa M Rashed, Anas M Saad, Muneer J Al-Husseini, Ahmed Mahmoud Galal, Assem Mohamed Ismael, Ahmed M Al-Tayep, Ayman El Shafie, Mahmoud Ahmed Ali, Ahmed Samir Alfaar

W Rashed, Research department, Children's Cancer Hospital Egypt, Cairo, Egypt., A Saad, Damascus University Faculty of Medicine, Damascus, Syrian Arab Republic., M Al-Husseini, Oncology Department, Ain Shams University Faculty of Medicine, Cairo, Egypt., A Galal , Research department, Armed Forces College of Medicine, Cairo, Egypt., A Ismael, Research department, Armed Forces College of Medicine, Cairo, Egypt., A Al-Tayep , Research department, Armed Forces College of Medicine, Cairo, Egypt., A El Shafie , Physical Medicine department, Armed Forces College of Medicine, Cairo, Egypt., M Ali , Microbiology and Immunology department, Armed Forces College of Medicine, Cairo, Egypt., A Alfaar, Ophthalmology Department, Charite - Universitatsmedizin Berlin Institut fur Medizin- Pflegepadagogik und Pflegewissenschaft, Berlin, Germany .