Preaxial Polydactyly of the Foot: Variable Expression of Trisomy 13 in a Case from Central Africa

Table 1

Summary of clinical features in trisomy 13.

Study	Taylor [10]	Hodes et al. [11]	Moerman et al. [12]	Lin et al. [13]	Petry et al. [6]	Quelin et al. [14]	Patient
Year	1968	1978	1988	2007	2013	2014	2014
Country	England	USA	Belgium	Taiwan	Brazil	France	DRC
Samples ()	27	19	12	28	30	3	1
Features	%	%	%	%	%	%	%
Craniofacial
Abnormal auricles	74	79	25	0	77	0	−
Microphthalmia	70	84	42	54	60	33	−
Anophthalmia	0	11	0	14	10	33	+
Low-set ears	85	0	33	?	47	33	+
Aplasia cutis/scalp defect	0	47	25	29	43	0	+
Microcephaly	59	58	50	61	40	0	+
Cleft palate	67	68	42	?	33	0	+
Cleft lip	56	53	8	?	23	0	+
Short neck	70	16	0	46	30	0	+
Ocular hypotelorism	0	21	17	0	10	0	+
Thorax/abdomen
Inguinal hernia/umbilical hernia	37	32	−	14	20	0	−
Anogenital
Cryptorchidism	93	100	50	73	78	0	+
Micropenis	−	5	50	?	30	0	+
Limbs, skin, and neurological
Postaxial polydactyly hands/feet	70	58	67	64	63	0	+
Single palmar crease	59	0	42	32	33		−
Duplicated hallux	−	−	−	−	3	33	+
Capillary hemangioma	56	37	0	14	27	0	−
Mongolian spot	0	0	0	0	0	0	−
Hypertonia/hypotonia	77	16	0	0	33	0	+