Table VII.

Patients with secondary T-cell lymphopenia; N=18

Case number	Gender	TREC average on initial specimen (TRECs/µL)	Description
40	Male	98	Congenital diaphragmatic hernia, mild hypocalcemia, congenital heart disease, corticosteroid therapy in NICU, familial macrocephaly
41	Female	1,670 pre-surgery; 116 post-surgery	Surgical thymectomy during congenital cardiac defect repair
42	Female	769 pre-surgery; 95 post-surgery	Hypoplastic left heart, thymectomy
43	Female	Undetectable	Dysmorphic features, non-immune hydrops, VSD, micrognathia, cleft palate, baby expired
44	Male	28	Previous diagnosis of leukemia, patient receiving chemotherapy, screened at 6 months of age
45	Male	101	Hypoplastic left heart
46	Male	102	TGA and right congenital diaphragmatic hernia, low TREC likely due to third spacing, Negative FISH for 22q11.2
47	Male	6	Gastroschisis
48	Female	58	Complex congenital heart defect and chylothorax
49	Male	181	Dandy Walker malformation, heart defect, cleft palate
50	Male	63	Hypoplastic left heart
51	Male	Undetectable	Gastroschisis
52	Male	31	Trisomy 21 with non-immune hydrops; loss of lymphocytes in severe effusions, bone marrow biopsy showed normal lymphocyte counts and subsets
53	Female	Undetectable	Non-immune hydrops, dysmorphic features, VSD, micrognathia, cleft palate
54	Male	96	Gastroschisis and congenital diaphragmatic hernia
55	Male	Undetectable	Omphalocele
56	Male	1,642 pre-surgery; 46 post-surgery	Trisomy 21 with surgical thymectomy during cardiac defect repair
57	Male	78	Elevated 3-methylglutaric acid and 3-methylglutaconic acid on urine organic acid, possible mitochondrial disease, expired