TABLE 1

Frequencies of sex and age of 942 consecutive primary tumours and cysts of the mediastinum encountered in a 10-year period (2010–2019) at Marie Lannelongue Hospital (Le Plessis Robinson, France)

	Cases	Sex		Age years		Total
	Cases	F	M	Range	Mean	Total
Thymic lesions						507 (53.8)
Congenital cyst	44 (8.55)	20	24	27–81	64.10
Multilocular cyst	7 (1.39)	4	3	31–62	29.61
Cholesteroloma	3 (0.59)	0	3	25–53	35.07
Myasthenia gravis	138 (27.4)	92	46	8–69	31.19
Hyperplasia without myasthenia gravis	36 (7.16)	20	16	8–79	35.82
Thymolipoma	2 (0.4)	1	1	20–61	40.86
Thymomas	239 (47.5)	121	111	9–90	58.43
Thymic carcinomas	27 (5.37)	12	15	14–82	52.46
Carcinoid tumours	11 (2.19)	2	9	28–72	53.33
Nonthymic cysts						61 (6.5)
Bronchogenic	20 (32.8)	12	8	7–64	41.42
Pleuro-pericardial	38 (62.3)	19	19	9–74	52.25
Müllerian	3 (9.84)	3	0	47–57	52.09
Lymphomas		104	110	14–84	41.20	214 (22.7)
Diffuse large B-cell	81 (37.9)	42	39	15–84	44.49
Hodgkin lymphoma	110 (51.4)	55	55	14–77	36.72
T-lymphoblastic	10 (4.67)	2	8	18–63	45.60
Miscellaneous	13 (6.07)	5	8	25–83	58.06
Germinal cell tumours		16	55	0–74	30.73	71 (7.5)
Teratoma	25 (35.2)	14	11	0–74	28.16
Malignant nonseminomatous	37 (52.1)	2	35	15–65	31.96
Seminoma	9 (12.7)	0	9	20–48	32.80
Benign connective tumours						63 (6.7)
Castleman disease	4 (6.35)	2	2	30–77	45.65
Lipoma	4 (6.35)	2	2	55–61	59.50
Angioma	10 (15.9)	3	7	0–74	47.89
Schwannoma	25 (39.7)	16	9	10–78	46.72
Neurofibroma	5 (7.94)	2	3	42–56	44.37
Ganglioneuroma	6 (9.52)	4	2	6–60	30.03
Paraganglioma	9 (14.3)	6	3	15–78	53.25
Miscellaneous malignancies						26 (2.8)
Sarcomas	21 (80.8)	12	9	6–79	43.03
Undifferentiated malignant tumours	5 (19.2)	3	2	18–48	41.30
						942 (100)

Data are presented as n (%) or n, unless otherwise stated. F: female; M: male. Bold type represents significant features.