Clinicopathological features and BRAF V600E mutations in patients with isolated hypothalamic-pituitary Langerhans cell histiocytosis

Table 2 Magnetic resonance imaging findings in the hypothalamic-pituitary regions of seven patients with hypothalamic-pituitary Langerhans cell histiocytosis

No.	Post signal	AP	WPS (mm)	HI	Details of the lesions					Changes during follow-up
No.	Post signal	AP	WPS (mm)	HI	Number	Signal intensity on T1WI	Signal intensity on T2WI	Enhancement	Border	Changes during follow-up
1	Absent	Normal	7.1	Absent	Single	Isointensity	Isointensity	Homogeneous	Relatively clear	Regression
2	Absent	Normal	7.0	Absent	Single	Isointensity	Isointensity	Homogeneous	Relatively clear	Stable
3	Absent	Normal	6.6	Present	Single	Isointensity	Isointensity	Homogeneous	Irregular	Increased, PS enlargement
4	Absent	Enlarged	5	Absent	Single	Isointensity	Isointensity	Homogeneous	Obscure	Not available
5	Absent	Normal	8.5	Present	Single	Isointensity	Isointensity	Homogeneous	Relatively clear	Regression
6	Absent	Enlarged	6.6	Absent	Single	Slightly Hypointense	Slightly Hyperintense	Heterogeneous	Obscure	Stable
7	Absent	Normal	9	Absent	Single	Isointensity	Isointensity	Homogeneous	Relatively clear	Regression

AP anterior pituitary, WPS width of the pituitary stalk, HI hypothalamus involvement, PI pituitary involvement