Replacement of tunica albuginea of corpus cavernosum penis using human dura Experimental study on dogs

Although penile fracture is a rare case, it is a well-described urologic emergency. It results from the rupture of the tunica albuginea of corpora cavernosa by blunt strain that commonly mandates immediate surgical exploration. Urethral injury may also accompany penile fracture. An ideal anamnesis and a special physical examination were determinant to achieve a correct diagnosis. It is usually diagnosed based on clinical examination, but ultrasonography can be very helpful in diagnosis. The treatment is based on the presence of associated urethral injury. Early surgery is preferable to conservative management, because it is associated with better outcomes and fewer long-term complications. The surgical repair of cavernous body can produce good results, with a favorable prognosis and minimal rate of complications. We present a penile fracture case of 34-year-old with subtotal rupture of the right corpus cavernosum without urethral injury who treated by early surgery and good results.

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Penile Corporoplasty Using Tunica Albuginea Free Graft from Proximal Corpus Cavernosum: A New Technique for Treatment of Penile Curvature in Peyronie’s Disease

European Urology ◽

10.1016/s0302-2838(03)00378-6 ◽

2003 ◽

Vol 44 (6) ◽

pp. 720-723 ◽

Cited By ~ 22

Author(s):

J.Ullrich Schwarzer ◽

Bärbel Mühlen ◽

Olaf Schukai

Keyword(s):

Tunica Albuginea ◽

Corpus Cavernosum ◽

Peyronie’S Disease ◽

New Technique ◽

Penile Curvature ◽

Free Graft ◽

Peyronie's Disease ◽

A New Technique

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Autologous tunica albuginea cells in fibrin scaffold for correction of penile chordee: An experimental study in rabbits

European Urology ◽

10.1016/s0302-2838(21)01446-9 ◽

2021 ◽

Vol 79 ◽

pp. S1523-S1524

Author(s):

M. Abdullateef ◽

T.E. Helmy ◽

A.T. Hafez ◽

M. Gabr ◽

H.G. Amer ◽

...

Keyword(s):

Experimental Study ◽

Tunica Albuginea ◽

Fibrin Scaffold

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Morphological analysis of the elastic and collagen fibers in the ram penis

Pesquisa Veterinária Brasileira ◽

10.1590/1678-5150-pvb-5325 ◽

2018 ◽

Vol 38 (11) ◽

pp. 2159-2165 ◽

Cited By ~ 1

Author(s):

Bruno Cesar Schimming ◽

Gustavo N. Moraes

Keyword(s):

Extracellular Matrix ◽

Morphological Analysis ◽

Sigmoid Flexure ◽

Tunica Albuginea ◽

Corpus Cavernosum ◽

Reproductive Organs ◽

Collagen Fibers ◽

Elastic Fibers ◽

Corpus Spongiosum ◽

Domestic Ruminants

ABSTRACT: The penis represents the organ of the male’s copulation. It is essential to know the reproductive biology and the morphology of the reproductive organs to increase animal production. In order to contribute to this knowledge and provides information on the ram reproductive morphology, the purpose of this work was to describe the distribution, based on light microscopy, of the collagen and elastic fibers in the ram penis. For that, were collected transverse fragments of the penis (root, sigmoid flexure, body and glans) of seven rams. The specimens were fixed in paraformaldehyde for 24h and destined for the histological routine. The extracellular matrix of the ram penis was composed of collagen and elastic fibers. The penis was enveloped by the tunica albuginea, consisting essentially of collagen fibers, which were arranged in two layers: an outer longitudinal and an inner circular. This tunic emitted septa that penetrated the corpus cavernosum. The elastic fibers appeared transversely and longitudinally in the corpus cavernosum, corpus spongiosum, and next to the neurovascular bundle of the penis. This structure was not different to that reported for other domestic ruminants such as cattle and buffaloes.

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Effects of castration on penile extracellular matrix morphology in domestic cats

Journal of Feline Medicine and Surgery ◽

10.1177/1098612x16689405 ◽

2017 ◽

Vol 19 (12) ◽

pp. 1261-1266 ◽

Cited By ~ 6

Author(s):

Nathalia CS Borges ◽

Marco A Pereira-Sampaio ◽

Vivian Alves Pereira ◽

Marcelo Abidu-Figueiredo ◽

Maurício Alves Chagas

Keyword(s):

Extracellular Matrix ◽

Tunica Albuginea ◽

Corpus Cavernosum ◽

Collagen Fibers ◽

Elastic Fibers ◽

Corpus Spongiosum ◽

Predisposing Factor ◽

Luminal Area ◽

Matrix Morphology ◽

Student’S T

Objectives This study was undertaken to verify the possible modifications caused by hormonal deprivation in the extracellular matrix in the penises of neutered cats. Methods Twenty-seven penises from domestic shorthair cats were collected: 14 samples from intact cats and 13 from neutered cats. Sections were stained with Weigert’s resorcin-fuchsin, hematoxylin and eosin, and picrosirius red. Histomorphometric analysis was performed using light microscopy and image analysis software. The following parameters were analyzed: density of the elastic fibers and collagen fibers in the corpus spongiosum; density of the elastic fibers in the tunica albuginea of the corpus cavernosum and the tunica albuginea of the corpus spongiosum; luminal area of the urethra; area of the corpus spongiosum; area of the corpus cavernosum; and thickness of the urethral epithelium. The data were analyzed using the Shapiro–Wilk test to verify the normal distribution, and groups were compared using Student’s t-test; P <0.05 indicated statistically significant differences. Results Significant differences were observed between intact cats and neutered cats in the density of elastic fibers in the tunica albuginea of the corpus cavernosum (8.13% ± 1.38% vs 3.11% ± 0.66%), tunica albuginea of the corpus spongiosum (4.37% ± 1.08% vs 3.30% ± 1.01%) and corpus spongiosum (6.28% ± 3.03% vs 4.10% ± 2.19%), and density of collagen fibers in the corpus spongiosum (34.11% ± 10.86% vs 44.21% ± 12.72%). Conclusions and relevance The results show a significant decrease in the density of the elastic fibers and a significant increase of the density of the collagen fibers in the corpus spongiosum in neutered animals. This suggests that the compliance of the periurethral region is reduced, and these changes could be a predisposing factor for urethral obstructive disease.

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Stereological study of the elastic fiber and smooth muscle cell system in the bovine and buffalo penis

Pesquisa Veterinária Brasileira ◽

10.1590/s0100-736x2013001300017 ◽

2013 ◽

Vol 33 (suppl 1) ◽

pp. 107-112 ◽

Cited By ~ 2

Author(s):

Ilma C.A. Ribeiro ◽

Marcelo Abidu-Figueiredo ◽

Fabíola B. Costa ◽

Marco A. Pereira-Sampaio ◽

Maurício A. Chagas

Keyword(s):

Smooth Muscle ◽

Elastic System ◽

Tunica Albuginea ◽

Elastic Fiber ◽

Corpus Cavernosum ◽

Volume Density ◽

Cell System ◽

Elastic Fibers ◽

Corpus Spongiosum ◽

Significant Difference

Samples of ten penises of Mediterranean buffaloes and ten penises of Red Sindhi cattle were used. The thickness of the tunica albuginea (TA), distribution of smooth muscle cells (SMC) and volume density (Vv) of elastic system fibers in TA, corpus cavernosum (CC) and corpus spongiosum (CS) were evaluated. The Vv of elastic system fibers in buffalo and bovine penis was respectively 4.07% ±0.88% and 3.36% ±1.21% in TA; 17.32% ±2.21% and 13.14% ±1.27% (CC), 26.58% ±4.31% and 31.36% ±3.67% (CS). The CC of buffalo presented higher Vv of elastic fibers than bovine, while in the CS the Vv of elastic fibers in buffaloes was smaller than in cattle. The TA thickness showed a significant difference among the species studied. The arrangement of SMC in the bovine penises and in the water buffalo suggests that this pattern is common to animals that have fibroelastic penises.

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