This video demonstrates an excision of a thyroglossal duct cyst with special focus on 1) using the thyrohyoid membrane as a landmark and 2) dissection of the posterior hyoid space, which is the space between the thyrohyoid membrane and the posterior surface of the hyoid bone.
Contributors: John Maddalozzo MD, FAAP, FACS; Monica Herron, MPAS, PA-C; Sarah Maurrasse, MD; Jesse Arseneau (editor)
Ann & Robert H. Lurie Children’s Hospital of Chicago
Partial penectomy is the surgical standard of care for invasive tumors of the mid to distal penis, but is utilized in cases of distal penile calciphylaxis due to pain. Partial Penectomy is advantageous compared to a total penectomy, as the patient is able to urinate in the standing position.
A 51-year-old man on dialysis for end stage renal disease presented to the emergency department with pain that was increasing in severity for over a month at the glans of the penis. On examination, the glans of the penis was firm with gangrenous necrosis extending distal to the corona, and the urethral meatus was not identified due to the extensive scarring. A clinical diagnosis of penile calciphylaxis was determined and a Partial Penectomy was subsequently performed. Calciphylaxis is a rare life-threatening systemic disease in patients with end stage renal disease due to medial calcification and fibrosis of blood vessels leading to infection and gangrene. The prognosis for penile calciphylaxis tends to be poor with an overall mortality of 64% with a mean time to death of 2.5 months.