Contributors: Michael Golinko  and Kumar Patel Removal of an approximately 5 cm congenital alopecia using an O to Z or yin-yang flap method. DOI: http://dx.doi.org/10.17797/rbbu00mhp0

Contributor: Tyler McElwee Congenital dacryocystocele describe the distended lacrimal sac in neonates with or without associated intranasal cyst.  The prevalence is about 0.1% of infants with congenital nasolacrimal duct obstruction and a slight prevalence in female infants.  It refers to cystic distention of the lacrimal sac as a consequence of the nasolacrimal drainage system obstruction.  It typically presents as a bluish swelling inferomedial to the medial canthus in the neonates.  Unilateral congenital dacryocystocele is more common but 12-25% of patients affected have bilateral lesions.  Ultrasound, CT scan or MRI can be used for diagnosis.  About half of the patient with acute dacryocystitis can be management with conservative management such as digital massage of lacrimal sac or in-office lacrimal duct probing.  The other half of patients will require surgery under general anesthesia for removal of the dacryocystocele.   Endoscopic excision of the intranasal cysts has been used successfully as a treatment option with Crawford stent placement.  Post-operatively patients are treated empirically with antibiotics and nasal saline.  No second look is usually planned unless patients develop significant nasal obstrctuion. Editor Recruited By: Sanjay Parikh, MD, FACS DOI: http://dx.doi.org/10.17797/16rnuq8n0y

Congenital nasal pyriform aperture stenosis (CNPAS) is defined as inadequate formation of the pyriform apertures forming the bony nasal openings resulting in respiratory distress and cyanosis soon after birth. Some clues such as worsening distress during feeding and improvement during crying may indicate a nasal cause of respiratory distress rather than distal airway etiology. Inability or difficulty passing a small tube through the nasal cavities may suggest CNPAS. The presenting clinical features of CNPAS can be  similar to other obstructive nasal airway anomalies such as choanal atresia. Diagnosis is confirmed via CT scan with a total nasal aperture less than 11mm. CNPAS may occur in isolation or it may be a sign of other developmental abnormalities such as holoprosencephaly, anterior pituitary abnormalities, or encephalocele. Some physical features of holoprosencephaly include closely spaced eyes, facial clefts, a single maxillary mega incisor, microcephaly, nasal malformations, and brain abnormalities (i.e. incomplete separation of the cerebral hemispheres, absent corpus callosum, and pituitary hormone deficiencies). It is important to rule out other associated abnormalities to ensure optimal treatment and intervention. Conservative treatment of CNPAS includes humidification, nasal steroids, nasal decongestants and reflux control. Failure of conservative treatment defined by respiratory or feeding difficulty necessitates more aggressive intervention. The most definitive treatment for CNPAS is surgical intervention to enlarge the pyriform apertures. Contributors: Adam Johnson MD, PhD Abby Nolder MD

Contributors:Katherine Faust and Jacob Brubacher Internal distraction, or bridge plating, of distal radius fractures is a valuable tool for highly comminuted and unstable fracture patterns. Additionally, this technique is valuable for those fractures that extend into the metadiaphysis or for multiply injured patients requiring stable fixation for mobilization. Bridge plating allows for stable fixation in poor bone quality and early use of the injured extremity.

Contributors: Gresham T. Richter (University of Arkansas for the Medical Scienc) 1) Purpose: Untreated Eustachian Tube dysfunction can lead to retraction of the tympanic membrane (TM) and, eventually, an atelectatic middle ear. The insertion of a tympanostomy tube attempts to equalize the air pressure of the middle ear with the environment, allowing for the stabilization of the TM. Bobbin style tubes have an average extrusion time of less than a year while T-tubes remain in place longer but risk residual perforation. (1) 2)Instruments: Rigid endoscopes were used to direct and record the procedure with standard video monitoring. Straight cupped forceps were used to debride the external auditory canal. A myringotomy knife was used to make the myringotomy. 3) Landmarks: After debridement of cerumen, the handle of the malleus and the incudostapedial joint are clearly visualized as indicated with titles in the video. Note that the patient's tympanic membrane shows an incudostapediopexy and deep retraction which is not the typical tympanic membrane position. 4) Procedure: Cerumen is debrided from the EAC. A myringotomy knife is used to enter the middle ear space which is suctioned. A t-tube is placed, and the position is confirmed. 5) Conflict of Interest and Source of Funding The authors have no financial disclosures. 6) References 1. Weigel MT, Parker MY, Goldsmith MM, Postma DS, Pillsbury HC. "A prospective randomized study of four commonly used tympanostomy tubes." The Laryngoscope. 1989 Mar;99(3):252-6. http://dx.doi.org/10.1288/00005537-198903000-00003 DOI: http://dx.doi.org/10.17797/7zpuk5q5r6

Contributor: Joseph Kim This video demonstrates a fully laparoscopic total gastrectomy using a double-staple technique that facilitates the safe and effective creation of an esophagojejunal anastomosis. Fully laparoscopic total gastrectomy provides distinct advantages over the open laparotomy technique. An elderly gentleman was found to be anemic on routine bloodwork exam. Subsequent upper endoscopy revealed gastric cancer of the cardia, necessitating complete gastric resection. This video demonstrates a fully laparoscopic total gastrectomy using a double staple technique that facilitates the safe and effective creation of an esophagojejunal anastomosis. DOI: http://dx.doi.org/10.17797/i3nfwwigio Editor Recruited By: Jeffrey B. Matthews, MD

The goal of auricular reconstruction is to achieve a natural appearance of the reconstructed side with a form that resembles the normal ear and endures over a lifetime. For severe deformities in which major cartilaginous elements are missing, established reconstructive techniques using alloplastic constructs wrapped in temporoparietal fascia or carved costal cartilage grafts may be employed. For cases of minor deformity in which all named cartilaginous components are present, albeit deficient compared to the normal side, transfer of autologous auricular skin and cartilage may be used to achieve symmetry between normal and abnormal ears. This video presents the surgical technique and results of a grade 1 microtia reconstruction using autologous auricular cartilage transfer. This two-stage method of reconstruction avoids the use of autologous rib or alloplastic materials and often avoids the use of skin grafting altogether.

A 30-year-old female underwent in-vitro fertilization and preimplantation genetic testing. The patient conceived after her first frozen embryo transfer (FET). Beta-hCG was measured at 85 and was doubling appropriately. Ultrasound showed an angular pregnancy with heart beat confirmed by MRI. The patient has a deep arcuate uterus which may have predisposed to angular pregnancy. She was given 3 doses of methotrexate unsuccessfully. Due to concern of rupture, she underwent a hysteroscopic injection of methotrexate inside the gestational sac at 7 weeks. Hysteroscopy showed the gestational sac within the angular portion of the uterus as well as the needle penetrating the gestational sac to inject the 50mg methotrexate (see video). Fetal heart rate ceased and the patient passed products of conception 1 week later. The patient had no further complications and had a normal pregnancy on her next FET that resulted in a livebirth.

Contributors: Robert C.G. Martin, II Locally advanced pancreatic cancer (Stage 3) is defined by encasement or abutment of vital venous and arterial structures.  Irreversible electroporation (IRE) represents an effective local non-thermal ablation modality for treatment of solid tumors involving critical vascular and biliary structures.  Electroporation creates pores in the cell membrane and disrupts the ionic gradients while sparing the extracellular matrix, resulting in preservation of blood vessel and biliary scaffolding. DOI: http://dx.doi.org/10.17797/yonbav6fdz Editor Recruited by: Jeffrey B. Matthews

The procedure in this video demonstrates the removal and replacement of a malpositioned Jones tube with endoscopic endonasal guidance to ensure proper tube placement within the nose.