Circumferential Acquired Macropenis: Definition, Literature Review and Proposal of Geometrically-Based Reduction Corporoplasty

Introduction

Over the years, scattered cases of acquired penile girth increase have been published with different terms, the common clinical feature being a mechanically hampered penetration.

Aim

To search for all published cases of acquired penile girth increase, and to propose a geometrically-based reduction corporoplasty.

Methods

A case of acquired penile bilateral albuginea herniation prompted us to a PubMed, EMBASE and Google Scholar literature review from 1970 to 2021, in search for similar conditions.

Main Outcome Measure

We identified 7 cases of acquired penile girth increase; the geometric approach used to surgically correct bilateral corporal herniation proved successful in our case.

Results

In 5 of the 7 cases of acquired penile girth increase, priapistic episodes were deemed the causal factor; in the remaining 2 and in ours, a clear etiology could not be identified.

Conclusion

“Circumferential acquired macropenis” describes the unusual syndrome of acquired penile girth increase, that encompasses 2 distinct etiologies: post-priapistic cases, characterized by penile girth increase both in flaccidity and erection, and idiopathic cases, characterized by girth increase in erection only, and at surgery by a thinned albuginea in the affected area.

Pescatori ES, Drei B, Rabito S Circumferential Acquired Macropenis: Definition, Literature Review and Proposal of Geometrically-Based Reduction Corporoplasty. Sex Med 2022;10:100460.

Normative penile anthropometry in term newborns in Kumasi, Ghana: a cross-sectional prospective study

BACKGROUND

Genital measurements are a useful adjunct in the early detection of various endocrine conditions including hypopituitarism and disorders of sexual differentiation. Standards for genital sizes have been published but racial/ethnic differences exist. This study was done to establish norms for genital sizes in term Ghanaian male newborns.

METHODS

This was a cross-sectional study of all apparently well full-term newborns of postnatal age < 48 h and birth weight between 2.5 and 4.0 kg delivered at Komfo Anokye Teaching Hospital within the study period. Anthropometric and genital parameters were documented for study subjects as well as parental socio-demographic indices.

RESULTS

A total of 644 male newborns were recruited between May and September 2014. The mean penile length (MPL) was 3.3 ± 0.5 cm and the mean penile width (MPW) was 1.05 ± 0.1 cm. An inverse relationship was found between maternal age and MPL (correlation coefficient -0.062, 95% CI -0.121 to -0.002; p = 0.04). MPL was also significantly different (p = 0.04) by mode of delivery, with babies delivered by caesarean section having the lowest MPL. MPL correlated positively with both gestational age (p = 0.04) and birth length (p < 0.001), while MPW correlated proportionally with birth weight and length (p < 0.001 for both).

CONCLUSIONS

Using the conventional definition of micropenis as stretched penile length (SPL) < 2.5 standard deviation (SD) below the mean and macropenis as an SPL > 2.5 SD, a Ghanaian term newborn may warrant investigation if he has an MPL < 2.1 cm or > 4.4 cm.