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The Reproductive System and Its Disorders
Published in Walter F. Stanaszek, Mary J. Stanaszek, Robert J. Holt, Steven Strauss, Understanding Medical Terms, 2020
Walter F. Stanaszek, Mary J. Stanaszek, Robert J. Holt, Steven Strauss
Externally, the penis consists of the body or shaft, which terminates in the glans penis, a cap-like extension of the corpus spongiosum. The word glans is from the Latin for "acorn," so the term is often used for any rounded mass or gland-like structure (for example, glans clitoridis is the erectile tissue at the end of the clitoris). The glans penis is molded into an expanded rim called the corona (from the Greek for "crown," as in coronary). The prepuce or foreskin, a fold of skin between the corona and shaft of the penis, folds forward over the glans unless removed by the surgical procedure known as circumcision.
Male Methods
Published in Sujoy K. Guba, Bioengineering in Reproductive Medicine, 2020
Mechanical friction and pressure are stimuli which play a dominant role in the triggering of ejaculation during intercourse and masturbation. There are receptors to mechanical stimuli particularly in the glans penis and also in other regions of the penis. Signals from the activated receptors travel to nerve centers responsible for ejaculation. Electroejaculation, which was discussed earlier, is essentially a means of exciting these same centers directly, bypassing the mechanical sensory receptors and some of the neural pathways from the receptors to the ejaculation center. Some subjects have the receptors and neural pathways intact but still do not achieve an ejaculation by intercourse or by masturbation. This state may be a sequel to a number of conditions such as spinal cord injury, alcoholism, and psychogenic aberrations. Possibly there may not be any morphological deficiencies per se and it may only be that the threshold of activation has increased. Giving stimuli at higher intensity than possible in the normal sexual act may help cross the threshold and trigger ejaculation. An alternative form of stimulus, for example a vibration, may also have the same effect at a lower and better tolerated stimulus intensity. Vibratory ejaculation is based on this concept.
Immunologically mediated skin disorders
Published in Ronald Marks, Richard Motley, Common Skin Diseases, 2019
Small, irritating, whitish areas occur on the genitalia or around the anus or, less commonly, elsewhere over the skin. In men, the condition occurs on the glans penis or prepuce, when it was formerly known as balanitis xerotica obliterans and may cause discomfort and paraphimosis. Early lesions develop small haemorrhagic blisters on minor trauma. There is a characteristic pathological picture in which there is intense oedema in a subepidermal band.
The Effectiveness of Jet (Needle-Free) Injector to Provide Anesthesia in Child Circumcision under Local Anesthesia
Published in Journal of Investigative Surgery, 2022
Circumcision is one of the oldest and the most frequently performed surgeries in human history. It is the surgical removal of the skin covering the tip of the penis to expose the glans penis [1]. According to the data of the World Health Organization, it has been reported that approximately 33% of men aged 15 and over are circumcised [2]. In a study conducted recently Morris et al. estimated the prevalence of circumcision in our contry as 98.6 percent [3]. Circumcisions performed in our country are usually performed in preschool period and under local anesthesia. The needle used for the application of a local anesthetic agent causes fear in patients, so they overreact to the circumcision procedure. Needle-free injection using jet injectors was developed for some dermatological applications and vascular access procedures where similar problems were experienced and jet injection technique was started to be used for anesthesia. Since there is no needle insertion into the skin when jet injectors are used, no-needle technique provides an important advantage especially in patients who have a fear of needles.
Penile calciphylaxis with extragenital gangrene
Published in Baylor University Medical Center Proceedings, 2021
Marcus Zaayman, Annika Silfvast-Kaiser, Edgar Rodriguez, Andrew J. DeCrescenzo, Alan Menter
A 44-year-old Hispanic man with type 1 diabetes mellitus, hypertension, hypercholesterolemia, cytomegaloviral viremia, remote deep venous thrombosis, successful pancreatic transplant (on immunosuppressive therapy), rejected kidney transplant with allograft nephrectomy, and end-stage renal disease (ESRD) on hemodialysis presented to the dermatology clinic with a 3-month history of a bleeding, painful, black lesion on the glans penis. Two months prior, he was diagnosed with balanoposthitis (inflammation of the foreskin and glans penis) and underwent circumcision. His condition persisted with progressive darkening of the glans, while developing similar nonhealing wounds on his bilateral feet and right thigh. The patient underwent subsequent amputation of his right first and second toes. A prior biopsy from his right thigh could not rule out calciphylaxis. He was discharged on sodium thiosulfate for presumed calciphylaxis and sevelamer was substituted for calcium acetate.
Fixed drug eruption due To 2,3-dimercapto-1-propanesulfonic acid (DMPS) treatment for mercury poisoning: a rare adverse effect
Published in Acta Clinica Belgica, 2019
Fatma Erden, Erol Rauf Agis, Meside Gunduzoz, Omer Hinc Yilmaz
Fixed drug eruptions (FDE) are usually characterized with solitary erythematous or dark red macular, plaque or bullous lesions. These lesions may be solitary or in multiple numbers. Most importantly, lesions develop in the same region with repetitive exposures of triggering agents. The development of these lesions can take several hours, days, or even years at the first episode [2,3]. Among the frequently accused drugs are various antibiotics, non-steroidal anti-inflammatory drugs, barbiturates, allopurinol, metronidazole, pirantel pamoad, albendazole, sulfonamides, tetracycline, carbamazepine phenolphthalein, and griseofulvin [4]. Lesions mostly prefer intertriginous areas and genital area. In male patients, glans penis involvement is typical. Lesions regress after leaving post-inflammatory pigmentation. This pigmentation increases with each repeated attack [3,4]. In our case, the lesions started in genital area on the second day of treatment and oral mucosa lesions appeared on the fourth day of treatment. The presence of lesion in genital areas helped us for differential diagnosis. Furthermore, another method helping diagnosis was the patch test. The tests prepared with trigger agents are administered on the lesion areas (in varying concentration with saline or petrolatum). In our case, we could not perform a test because the lesions were on unappropiate areas for test [6,7].