Japanese Dermatological Association guidelines: Outlines of Japanese clinical guidelines for basal cell carcinoma 2021.

To summarize the current therapies for skin cancers, the Japanese Skin Cancer Society issued the first guidelines for skin cancers, including melanoma, squamous cell carcinoma, basal cell carcinoma (BCC), and extramammary Paget's disease, in 2007. These guidelines were revised in 2015. Herein, we present the English version of the 2021 edition of the Japanese clinical guidelines for BCC.

Successful treatment of recurrent thoracic aortic prosthetic graft infection after omentopexy by free latissimus dorsi and rectus abdominis muscle flap.

A 50-year-old patient who underwent total aortic arch replacement for acute type A aortic dissection developed recurrent thoracic prosthetic graft infection after omentopexy for the treatment of initial postoperative graft infection of the ascending aorta and transverse aortic arch. We report the successful treatment of the disastrous complication by covering the prosthetic graft with a free latissimus dorsi muscle flap coupled with a pedicled rectus abdominis myocutaneous flap for the reduction of mediastinal dead space, following surgical disinfection with partial graft reconstruction.

Gastric remnant reconstruction with left gastroepiploic artery supercharge after esophagectomy in a patient with an occluded right gastroepiploic artery: A technical and case report.

Introduction: Gastric remnant reconstruction is commonly used for esophagectomy reconstruction. However, standard reconstruction cannot be performed in some patients with a specific medical history. We report a case of esophagectomy and gastric remnant reconstruction with left gastroepiploic artery (LGEA) supercharge to treat esophageal cancer in a patient in whom the right gastroepiploic artery (RGEA) had previously been occluded.

Full-Thickness Entire Nasal Alar Reconstruction Using a Forehead Flap in Asians: No Cartilaginous Infrastructural Lining Is Necessary.

Full-thickness defects of the entire nasal ala, including the rim, can be challenging to reconstruct. A forehead flap may provide a more imperceptible and natural-appearing reconstructed nasal ala. Previously, many authors have insisted adding cartilaginous infrastructural support for an entire, full-thickness defect to keep the postoperative alar structure symmetrical.

Factors that Affected Functional Outcome After a Delayed Excision and Split-Thickness Skin Graft on the Dorsal Side of Burned Hands.

Early excision and skin grafting is the principle treatment for a burned hand although there are occasions when it cannot be done such as severe general condition, delayed consultation, and the lack of a definitive assessment of burn depth. This study analyzes the factors that affected function after a delayed excision and skin graft for hands with a deep dermal burn. This study retrospectively evaluated 43 burned hands that required a delayed excision and split-thickness skin graft on the dorsal side.

Review and proposal of regional surgical management for melanoma: revisiting of integumentectomy and incontinuity dissection in treatment of skin melanoma.

Background: Past studies showed that integumentectomy and incontinuity could be effective procedures in the surgical management of melanoma patients. The present study reports on the historical background of these procedures. In addition, we analyze the ICG assisted integumentectomy and incontinuity techniques and algorithms that we had created when performing this procedure.

Exploration of more effective neurorrhaphy in facial nerve reconstruction: A comparison focusing on the difference of neural window size and condition of the neurorrhaphy site.

Background And Aim: Various techniques have been introduced for reconstruction of the facial nerve. An improved method of neurorrhaphy to achieve satisfactory mimetic muscle function is required. We made and compared three different neurorrhaphy models to elucidate the effect of neural window size and condition of the neurorrhaphy site on axonal regeneration.

A new primary cleft lip repair technique tailored for Asian patients that combines three surgical concepts: Comparison with rotation--advancement and straight-line methods.

Various techniques have been described for unilateral cleft lip repair. These may be broadly classified into three types of procedure/concept: the straight-line method (SL; Rose-Thompson effect); rotation-advancement (RA; upper-lip Z-plasty); and the triangular flap method (TA; lower-lip Z-plasty). Based on these procedures, cleft lip repair has evolved in recent decades.

Neuregulin-1 released by biodegradable gelatin hydrogels can accelerate facial nerve regeneration and functional recovery of traumatic facial nerve palsy.

Background And Aim: Neuregulin-1 is an essential axoglial signal required for peripheral nerve development, and evidence that neuregulin-1 is also required for effective nerve repair is growing. In this study, the effects of neuregulin-1-impregnated gelatin hydrogels on nerve regeneration and functional recovery after anastomosis of the facial nerve were investigated in a rat model of traumatic facial nerve paralysis.

Materials And Methods: Twenty-four adult male rats underwent complete resection of the facial nerve trunk, followed by end-to-end anastomosis with epineural sutures.

Reconstruction of Large Cheek Defect With/Without Sideburn Using Malar-Posterior Auricular-Cervico Flap.

The cheek region is the most common site for malignant tumor occurrence and the treatment of malignant skin tumor requires extensive local excision. Many previous reports have covered methods of reconstruction using local flaps for skin defects in the cheek region.In this article, we describe our experience with a surgical reconstruction using a new flap method for 8 patients with missing tissue in the cheek region.

Dynamic change of myogenin in denervated rat mimetic muscle.

We previously reported double innervation of rat mimetic muscles with labeling of facial nuclei. However, whether denervated mimetic muscles are affected after such nerve repair is not known. Rats were divided into five groups: Group A, controls; Group B, complete facial palsy; Group C, complete facial palsy with repair using end-to-end neurorrhaphy; Group D, incomplete facial palsy; and Group E, incomplete facial palsy with repair using end-to-side neurorrhaphy.

Direction of innervation after interpositional nerve graft between facial and hypoglossal nerves in individuals with or without facial palsy: a rat model for treating incomplete facial palsy.

Background: The use of an interpositional nerve graft (IPNG) between the facial and hypoglossal nerves for incomplete facial palsy has recently been reported. However, its mechanism has not been elucidated. We established a rat model of IPNG to study incomplete facial palsy and confirmed the direction of innervation through the grafted nerve with or without facial nerve injury.

Advanced epithelioid malignant peripheral nerve sheath tumor showing complete response to combined surgery and chemotherapy: a case report.

Malignant peripheral nerve sheath tumor (MPNST) is a rare high-grade soft tissue sarcoma. The epithelioid variant accounts for 5% or less of MPNSTs; the clinical behavior of this variant is unclear. Reports of approximately 40 cases are available in the English literature; however, most reports addressed clinicopathological features rather than therapeutic procedures or clinical courses.