Abnormal findings associated with undescended testis in Nigerian children

Abnormalities of the external genitalia and groins among primary school boys in Bida, Nigeria

Background

Abnormalities of the male external genitalia and groin, a set of lesions which may be congenital or acquired, are rather obscured to many kids and their parents and Nigerian health care system has no formal program to detect them.

Objectives

To identify and determine the prevalence of abnormalities of external genitalia and groin among primary school boys in Bida, Nigeria.

Methods

This was a cross-sectional study of primary school male pupils in Bida. A detailed clinical examination of the external genitalia and groin was performed on them.

Results

Abnormalities were detected in 240 (36.20%) of the 663 boys, with 35 (5.28%) having more than one abnormality. The three most prevalent abnormalities were penile chordee (37, 5.58%), excessive removal of penile skin (37, 5.58%) and retractile testis (34, 5.13%). The prevalence of complications of circumcision was 15.40% and included excessive residual foreskin, excessive removal of skin, skin bridges and meatal stenosis. Undescended testes were seen in 6 (0.90%) boys, with median age of 9 years and 2 were bilateral. Also, micropenis was detected in 27 (4.07%) of the pupils.

Conclusion

Inguino-penoscrotal abnormalities are common in our community (36.20%). Screening of pre-school and school children to detect them should be introduced into the school health programs in Nigeria.

[Epidemiological and clinical aspects of visible urogenital malformations among adolescent's schoolboys at Cotonou]

AIMS

To detect systematically visible urogenital malformations (VUGM) in adolescents and describe their epidemiological and clinical aspects.

PATIENTS AND METHODS

It was a cross sectional, descriptive and analytical study, conducted from February to August 2012. Upon 2724 adolescents from 10 to 19 years old, of the public secondary schools of Cotonou. Among the 26,594 registered pupils, 2724 were included and examined after a randomized sampling of 30 clusters.

RESULTS

The mean age of the pupils was of 15 ± 2.30 years (11-19 years), with a peak at 18 years. The prevalence of the VUGM was slightly higher (9.57%) in individuals those had parents with low socioeconomic level. The prevalence of the VUGM was high in Yoruba and related (P=0.02). It was stronger (9.84%) among subjects in puberty period's than in pre-puberty (6.69%) (P=0.03). From the 253 having VUGM, 78 (30.83%) had 146 functional signs. It was indexed 266 affections and of malformatives associations in 21 pupils (8.30%). Varicocele was the most frequent (5.47%), followed by inguinal hernia (0.99%), hydrocele (0.88%), anomalies of testis migration (0.59%), cyst of spermatic cord (0.51%), insulated testicular hypotrophy (0.48%), micro-penile (0.33%), hypospadias (0.22%), penile curvature (0.22%) and epididymis cyst (0.07%).

CONCLUSION

Among patients who had VUGM, the majority had at least a varicocele, which occupies so far the first place within these malformations at the adolescents in Cotonou.

The frequency of undescended testis from birth to adulthood: a review

We performed a systematic review and critique of the literature on the frequency of undescended testis (UDT) among boys from birth to adolescence. Special attention was given to whether previous testicular position was taken into account to distinguish between congenital and acquired UDT. We searched Medline, Embase, Cinahl and the Cochrane Library. Any study reporting on the frequency of UDT was included. Study population age, number of boys studied, period of examination, primary examiner, area of study, study design, ethnicity, definitions used and previous testicular position were analysed. A total of 46 studies met the inclusion criteria. Twenty-three of the 46 (50%) studies involved newborns. Definitions were described in half of the studies; however, the definitions used were heterogeneous. Previous testis position was described in 11% (5/46) of the studies. At birth, in term and/or birth weight >2.5 kg infants, the UDT rate ranged from 1.0 to 4.6%, and in premature and/or birth weight <2.5 kg infants from 1.1 to 45.3%. At the age of 1 year UDT in term and/or birth weight >2.5 kg infants was seen in 1.0-1.5%, at 6 years in 0.0-2.6%, at 11 years in 0.0-6.6% and at 15 years in 1.6-2.2% of boys. The frequency of UDT shows variable figures in the literature. The actual frequency of acquired UDT essentially remains unclear because of the shortage of studies performed at an older age, and of studies reporting on previous testicular position.