Proportion of thyroid cancer and other cancers in the democratic republic of Congo

Table 1 Cancer distribution by affected organs and gender

	All, n = 6106	Females, n = 4169 (68.3%)	Males, n = 1937 (31.7%)
Breast	1631 (26.7)	1560 (37.4)	71 (3.7)
Cervix	1138 (18.6)	1138 (27.3)	-
Prostate	678 (11.1)	-	678 (35)
Skin	356 (5.8)	186 (4.5)	170 (8.8)
Blood and LO	206 (3.4)	95 (2.3)	111 (5.7)
Uterus	196 (3.2)	196 (4.7)	-
Colon	173 (2.8)	92 (2.2)	81 (4.2)
Lungs	161 (2.6)	60 (1.4)	101 (5.2)
Stomach	112 (1.8)	45 (1.1)	67 (3.5)
Bone	110 (1.8)	58 (1.4)	52 (2.7)
Thyroid	106 (1.7)	84 (2)	22 (1.1)
Anus/rectum	97 (1.6)	51 (1.2)	46 (2.4)
KS	87 (1.4)	22 (0.5)	65 (3.4)
Soft tissue	87 (1.4)	52 (1.2)	35 (1.8)
Eye	77 (1.3)	35 (0.8)	42 (2.2)
Ovary	77 (1.3)	77 (1.8)	-
Mouth	76 (1.2)	44 (1.1)	32 (1.7)
Vagina	75 (1.2)	75 (1.8)	-
Urinary bladder	73 (1.2)	32 (0.8)	41 (2.1)
Larynx	65 (1.1)	11 (0.3)	54 (2.8)
Nose	62 (1.0)	28 (0.7)	34 (1.8)
Peritoneum	51 (0.8)	24 (0.6)	27 (1.4)
Liver	49 (0.8)	24 (0.6)	25 (1.3)
Kidneys	41 (0.7)	21 (0.5)	20 (1)
Vulva	41 (0.7)	41 (1)	-
Ureter	33 (0.5)	14 (0.3)	19 (1)
Pharynx/nasopharynx	33 (0.5)	19 (0.4)	14 (0.7)
Intestines	29 (0.5)	16 (0.4)	13 (0.7)
Pancreas	29 (0.5)	13 (0.3)	16 (0.8)
Greater omentum	22 (0.4)	15 (0.4)	7 (0.4)
Esophagus	21 (0.3)	8 (0.2)	13 (0.7)
Penis	20 (0.3)	-	20 (1)
Testicles	20 (0.3)	-	20 (1)
Tonsils	13 (0.2)	5 (0.1)	8 (0.4)
Brain	10 (0.2)	6 (0.1)	4 (0.2)
Coecum	10 (0.2)	4 (0.1)	6 (0.3)
Vocal cords	8 (0.1)	1 (0.0)	7 (0.4)
Ears	7 (0.1)	5 (0.1)	2 (0.1)
Parotid glands	7 (0.1)	2 (0.0)	5 (0.3)
Duodenum	6 (0.1)	2 (0.0)	4 (0.2)
Palate	4 (0.1)	4 (0.1)	0 (0.0)
Forehead	2 (0.0)	1 (0.0)	1 (0.1)
Glottis	2 (0.0)	0 (0.0)	2 (0.1)
Trachea	2 (0.0)	1 (0.0)	1 (0.1)
Sweat glands	1 (0.0)	1 (0.0)	0 (0.0)
Maxillary	1 (0.0)	1 (0.0)	0 (0.0)
Spleen	1 (0.0)	0 (0.0)	1 (0.1)

LO: Lymphoid organ; KS: Kaposi Sarcoma.

Table 2 Cancer distribution by age group

Cancers	≤ 40 yr, n (1409)	%	41-60 yr, n (2689)	%	≥ 61 yr, n (2008)	%
Prostate	25	1.8	122	4.5	531	26.4
Cervical	156	11.1	611	22.7	371	18.5
Breast	403	28.6	895	33.3	333	16.6
Skin	141	10.0	133	4.9	82	4
Uterus	22	1.6	107	4.0	67	3.3
Lungs	30	2.1	64	2.4	67	3.3
Blood and LO	106	7.5	48	1.8	52	2.6
Colon	37	2.6	92	3.4	44	2.2
Stomach	19	1.3	60	2.2	33	1.6
KS	32	2.3	24	0.9	31	1.5
Soft tissue	27	1.9	30	1.1	30	1.5
Vessels	13	0.9	32	1.2	28	1.4
Bones	51	3.6	33	1.2	26	1.3
Vagina	16	1.1	33	1.2	26	1.3
Larynx	18	1.3	21	0.8	26	1.3
Anus-rectum	27	1.9	45	1.7	25	1.2
Thyroid	37	2.6	45	1.7	24	1.2
Mouth	28	2.0	24	0.9	24	1.2
Liver	12	0.9	19	0.7	18	0.9
Ureter	3	0.2	12	0.4	18	0.9
Vulva	4	0.3	20	0.7	17	0.8
Ovary	25	1.8	36	1.3	16	0.8
Peritoneum	12	0.9	23	0.9	16	0.8
Nose	26	1.8	23	0.9	13	0.6
Eye	35	2.5	30	1.1	12	0.6
Esophagus	5	0.4	6	0.2	10	0.5
Testicles	8	0.6	2	0.1	10	0.5
Pharynx	14	1.0	8	0.3	9	0.4
Pancreas	5	0.4	16	0.6	8	0.4
Intestines	7	0.5	15	0.6	7	0.3
Kidney	23	1.6	11	0.4	7	0.3
Vocal cords	1	0.1	2	0.1	5	0.2
Greater omentum	7	0.5	11	0.4	4	0.2
Penis	5	0.4	12	0.4	3	0.1
Duodenum	1	0.1	2	0.1	3	0.1
Tonsils	4	0.3	7	0.3	2	0.1
Coecum	5	0.4	3	0.1	2	0.1
Ears	4	0.3	1	0.0	2	0.1
Palate	1	0.1	1	0.0	2	0.1
Parotid glands	3	0.2	3	0.1	1	0.0
Trachea	1	0.1	0	0.0	1	0.0
Maxillary	0	0.0	0	0.0	1	0.0
Spleen	0	0.0	0	0.0	1	0.0
Brain	6	0.4	4	0.1	0	0.0
Glottis	0	0.0	2	0.1	0	0.0
Nasopharynx	1	0.1	1	0.0	0	0.0
Forehead	2	0.1	0	0.0	0	0.0
Sweat glands	1	0.1	0	0.0	0	0.0

LO: Lymphoid organ; KS: Kaposi Sarcoma.

Table 3 Frequency and distribution of the cases of thyroid cancer according to histological type

Variables	Number of cases	Percentage (%)
Histology
Papillary carcinoma	71	67.0
Follicular carcinoma	23	21.7
Anaplastic carcinoma	8	7.5
Lymphoma	3	2.8
Medullary carcinoma	1	0.9