Table 1.
Clinical Details of Patients and Somatic Variants in Discovery Set of 7 Pituitary NFAsa
Patient |
Tumor |
|||||
---|---|---|---|---|---|---|
Tumor Number | Age, y | Sex | Tumor Volume, cm3b | Histologyc | Ki-67 Index | Number of Somatic Variants |
1 | 64 | M | 15.9 | GA (FSH 70%, LH 15%) | 2–3% | 2 |
2 | 59 | M | 9.1 | GA (FSH 5–10%) | 2–3% | 7 |
3 | 59 | M | 4.2 | GA (FSH 15%) | 2% | 5 |
4 | 42 | F | 0.7 | GA (FSH 30%) | 2% | 5 |
5 | 82 | F | 2.4 | GA (FSH 20–30%) | 1–2% | 1 |
6 | 36 | F | 2.2 | GA (LH 5%) | 2–3% | 2 |
7 | 40 | M | 9.0 | GA (FSH 60%, LH 2%) | 2–3% | 2 |
Abbreviation: GA, gonadotroph adenoma (immunostaining for LH and/or FSH).
Seven samples were used in the discovery set for exome capture and sequencing studies because power calculations indicated that this number would be able to identify common driver mutations with a greater than 90% probability of identifying 1 or more mutations in genes involved in 30% of tumors (Varela I, Tarpey P, Raine K, Huang D, Ong CK, Stephens P, et al. Nature 2011;469:539–542).
Estimated tumor volume using the Di Chiro-Nelson method of V = 1/2(h × w × l) as documented on preoperative magnetic resonance imaging.
None of the pituitary NFAs had features of atypia.