The Functional Anatomy and Innervation of the Platysma is Segmental: Implications for Lower Lip Dysfunction, Recurrent Platysmal Bands, and Surgical Rejuvenation.

BACKGROUND: Despite the central role of the platysma in face and neck rejuvenation, much confusion exists regarding its surgical anatomy. OBJECTIVES: This study was undertaken to clarify the regional anatomy of the platysma and its innervation pattern and to explain clinical phenomena, such as the origin of platysmal bands and their recurrence, and the etiology of lower lip dysfunction after neck lift procedures. METHODS: Fifty-five cadaver heads were studied (16 embalmed, 39 fresh, mean age 75 years). Following preliminary dissections and macro-sectioning, a series of standardized layered dissections were performed, complemented by histology and sheet plastination. RESULTS: In addition to its origin and insertion, the platysma is attached to the skin and deep fascia across its entire superficial and deep surfaces. This composite system explains the age-related formation of static platysmal bands, recurrent platysmal bands after complete platysma transection, and recurrent anterior neck laxity after no-release lifting. The facial part of the platysma is primarily innervated by the marginal mandibular branch of the facial nerve, whereas the submandibular platysma is innervated by the "first" cervical branches, which terminate at the mandibular origin of the depressor labii inferioris. This pattern has implications for postoperative dysfunction of the lower lip, including pseudoparalysis, and potential targeted surgical denervation. CONCLUSIONS: This anatomical study, comprised of layered dissections, large histology, and sheet plastination, fully describes the anatomy of the platysma including its bony, fascial, and dermal attachments, as well as its segmental innervation including its nerve danger zones. It provides a sound anatomical basis for the further development of surgical techniques to rejuvenate the neck with prevention of recurrent platysmal banding.

Neck Contouring and Rejuvenation in Male Patients Through Dual-Plane Reduction Neck Lift.

Specialists seeking successful outcomes in male facial rejuvenation must be able to achieve adequate results in the neck and submental region to provide their patients with balanced and natural results. A thorough understanding of male jawline and neck surface aesthetics is described and its relevance to perceived age, attractiveness, and body mass index is presented. The neck lift technique described is based on the pursuit of 2 distinct objectives managed independently: (1) Volume contouring or reduction, which is mainly accomplished in the deep structures of the neck beneath the platysma and (2) superficial redraping, which consists of the management of the platysma itself and of the overlying subcutaneous fat and skin under minimal tension. A dual-plane approach to the neck is used, meaning 2 different dissection planes are carried out. In the area cranial to the submandibular-cervical junction line (ie, submandibular segment), a plane is developed both superficial and deep to the platysma, while in the area caudal to this line (ie, cervical segment), dissection is carried out only deep to the platysma, leaving the muscle attached to its overlying skin. A description of the technique is presented as well as its complications and indications for surgical neck enhancement.

Innovation in Aesthetic Plastic Surgery: An International Collaborative Effort.

An overview of the importance of international contributions to the advancement of aesthetic plastic surgery is presented, with emphasis on why, how and where in our specialty does innovation take place. The reason for innovating is clear: to improve on the quality of care patients receive today, through research and education. In order to do so, innovators must be either visionaries, advancers or popularizers of a new technique and they must have an exhaustive knowledge in a specific field, an intrinsic motivation to pursue work in that field and a capacity to solve problems in an original way.  The four areas of advancement in aesthetic plastic surgery are outlined, including better aesthetic results, better and faster patient recovery, increased patient safety and better surgeon experience. The three stages of development of our specialty are described as well, beginning with the creation stage in the late 1870s, in which the correction of evidently altered structures was undertaken; the establishment stage, which began in the late 1960s with the study and correction of surgical stigmata, the detailed analysis of surface aesthetics and later with the rise of minimally invasive procedures; and finally, the refinement stage that we have witnessed over the past few years, in which natural movement and feel are also considered essential in order to achieve successful aesthetic outcomes. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine Ratings, please refer to Table of Contents or online Instructions to Authors www.springer.com/00266 .

Infective dermatitis: A purely cutaneous manifestation of HTLV-1 infection.

Infectious dermatitis is a cutaneous manifestation of HTLV-1 infection. Although initially described in children in Jamaica, it is well documented that the disease can also present in adults. The clinical picture is of an oozing dermatitis affecting the scalp, face, retroauricular areas, the neck, and intertrigious areas, such as the axilla and groin. Histologically it has two patterns: a superficial perivascular dermatitis or a lichenoid dermatitis. The epidermal hyperplasia may mimic psoriasis. An important differential diagnosis is with mycosis fungoides, with epidermotropism, alignment of lymphocytes along the epidermal junction, lymphocytes in halo and wiry bundles of collagen in the papillary dermis. An important difference is the lack of marked lymphocytic atypia. The infiltrate is composed of a predominance of CD8-positive lymphocytes, analogous to what is seen in tropical spastic paraparesis. Infectious dermatitis patients may be confused with many common dermatological conditions, such a atopic dermatitis and contact dermatitis. Its diagnosis represent a challenge both to clinicians and dermatopathologists working in endemic areas.

Emerging infections: mimickers of common patterns seen in dermatopathology.

The following discussion deals with three emerging infection diseases that any dermatopathologist working in the northern hemisphere can come across. The first subject to be dealt with is gnathostomiasis. This parasitic disease is produced by the third larvarial stage of the parasite that in most patients is associated with the ingestion of raw fish. Epidemiologically, it is most commonly seen in South East Asia, Japan, China, and the American continent, mainly in Mexico, Ecuador, and Peru. Nowadays, the disease is also seen in travelers living in the developed countries who recently came back from visiting endemic countries. The disease produces a pattern of migratory panniculitis or dermatitis with infiltration of eosinophils in tissue. The requirements for making the diagnosis are provided, including clinical forms, common histological findings on skin biopsy as well as the use of ancillary testing. Buruli ulcer, a prevalent mycobacterial infection in Africa, is described from the clinical and histopathological point of view. The disease has been described occasionally in Central and South America as well as in developed countries such as Australia and Japan; Buruli ulcer has also been described in travelers returning from endemic areas. Clinically, the disease is characterized by large, painless ulcerations with undermined borders. Systemic symptoms are usually absent. Classical histological findings include a particular type of fat necrosis and the presence of abundant acid fast bacilli in tissue. Such findings should raise the possibility of this disease, with the purpose of early therapeutically intervention. Lastly, the infection by free living ameba Balamuthia mandrillaris, an emerging condition seen in the US and Peru, is extensively discussed. Special attention is given to clinical and histological characteristics, as well as to the clues for early diagnosis and the tools available for confirmation.

Reduction Neck Lift: The Importance of the Deep Structures of the Neck to the Successful Neck Lift.

A description of the deep structures of the neck that are responsible for submandibular fullness and a systematic surgical approach to reduce them are presented. The structures susceptible to surgical management include the subplatysmal fat, inter-sternocleidomastoid origin fat, anterior belly of the digastric muscle, hyoid bone, submandibular gland and the tail of the parotid gland. A thorough analysis of the key anatomic landmarks of the young and attractive neck is detailed in resting and dynamic positions. A clinical classification of parotid reduction in the face lift/neck lift patient is also presented.

Parasternal infiltration composite breast augmentation.

BACKGROUND: The simultaneous combination of both fat grafting to the breast and mammary implants has been recently proposed as a useful technique in breast augmentation surgery. The purpose of this study was to evaluate the aesthetic benefits of selective parasternal fat grafting at the time of primary implant breast augmentation. METHODS: Fifty-nine consecutive primary breast augmentation patients were studied retrospectively. Patients were divided into two groups: group 1 patients (n = 38) were treated only with breast implants, whereas group 2 patients (n = 21) received breast implants and parasternal fat grafting of 60 to 140 cc of adipose tissue. The length between the medial border of each breast, defined as the parasternal vertical aesthetic line, was measured preoperatively and postoperatively for both groups and compared through statistical analysis. RESULTS: The mean length between the parasternal vertical aesthetic lines in group 1 postoperatively was significantly higher, 2.26 ± 1.24 cm (p < 0.0001); whereas this length for group 2 was significantly lower after surgery, 0.60 ± 0.32 cm (p < 0.0001). No cysts or fat necroses were observed in group 2, presumably because of the low volume of fat used. CONCLUSIONS: Parasternal fat grafting performed simultaneously with breast augmentation is a safe procedure, and seems to provide a valuable cosmetic advantage by improving the medial transition zone of the breast implant with the presternal area. It prevents a "separated-breasts" deformity, which may produce unnatural results in implant-based breast augmentations, especially in thin patients.

A waterborn zoonotic helminthiase in an Italian diver: a case report of a cutaneous Sparganum infection and a review of European cases.

Many waterborne helminthes are opportunistic parasites that can travel directly from animals to man and may contain forms capable of penetrating the skin. Among these, Sparganum is the pseudophyllidean tapeworm that belongs to the genus Spirometra, which is responsible for parasitic zoonosis; it is rarely detected in Europe and is caused by the plerocercoid infective larva. Thus far, only six cases of cutaneous and ocular sparganosis have been reported in Europe; two and four cases have occurred in France and Italy, respectively. Herein, we describe a new case of sparganosis in Italy that affected a male diver who presented to the Bambino Gesù Children's Hospital of Rome. The patient's skin biopsy was submitted to the Parasitology department who, in consultation with Pathology, concluded that the morphologic and microscopic findings were those of Sparganum spp. larvae. The patient recovered following a single dose of 600 mg praziquantel.

Incidence of lower eyelid asymmetry: an anthropometric analysis of 204 patients.

BACKGROUND: To avoid complications and improve patient satisfaction with lower lid blepharoplasty, a precise assessment of any preoperative eyelid asymmetry is essential. OBJECTIVES: The authors describe a method of assessing preoperative eyelid asymmetry through readily available software and classifying the resulting measurements. METHODS: Digital images of 204 patients were analyzed using Photoshop CS3 Extended software (Adobe Systems, San Jose, California). The left eye was superimposed over the right eye using layers in the software program, and the lower eyelid margin and axis were outlined to obtain a diagram with the superimposed outlines of both eyes. Several measurements (ie, lateral canthal height, lower eyelid margin length and axis angle, and lower palpebral fissure surface area) were obtained for each patient. Differences between the right and left eyelids were recorded, and these data were compared between patients. RESULTS: Of the 204 patients studied, 184 (90.2%) had some degree of asymmetry. Most (118; 64.13%) presented with the right lower eyelid at a more inferior position than the left (R-), while 66 (35.87%) presented with the right lower eyelid at a higher position than the left (R+), a difference that was highly significant (P < .001). CONCLUSIONS: This software is a powerful and precise tool to evaluate and measure eyelid asymmetries. The use of this method showed a large degree of eyelid asymmetry preoperatively (more than 90%), which proves the importance of detecting and adequately analyzing this condition prior to surgery. The authors' simple method may be an important adjunct to obtaining optimal results in patients who seek eyelid surgery.

Balamuthia mandrillaris amoebic encephalitis: an emerging parasitic infection.

Balamuthia mandrillaris is a free living amoeba that can be isolated from soil. It is an emerging pathogen causing skin lesions as well as CNS involvement with a fatal outcome if untreated. The infection has been described more commonly in inmunocompetent individuals, mostly males, many children, and with a predilection for population with Hispanic background in cases occurring in the United States. Except for Africa, all continents have reported the disease, although a majority of cases are seen in North and South America. In published reported cases from North America, most patients will debut with neurological symptoms, where as in countries like Peru, a skin lesion will precede other symptoms. The classical skin lesion is a plaque, mostly located on face or knee. Diagnosis requires a high level of suspicion. Therapeutic strategies require a multidrug approach, than includes at least one amebicidal drug, and prolonged periods of treatment.

Balamuthia mandrillaris infection of the skin and central nervous system: an emerging disease of concern to many specialties in medicine.

PURPOSE OF REVIEW: Balamuthia mandrillaris infection of the skin and central nervous system has been increasingly reported in the last decade, making this entity a genuine emerging disease. The ability of the clinician in recognizing the skin lesion early in the course of the disease may lead to a successful therapeutic intervention in an otherwise fatal disease. RECENT FINDINGS: In the past years, advances have been made regarding knowledge about the ubiquity of the ameba in the environment, its worldwide distribution (with higher prevalence in South America), the patients at risk (particularly those of Hispanic origin), the diagnostic methods (including those based on molecular biology) and the different therapeutic strategies that have resulted in survival of patients. A recent report dealing with organ transplant transmission of this infection has made it a subject of interest in transplant medicine. SUMMARY: The present review will allow readers from different fields (clinician, dermatologist, neurologist, infectious disease and transplant specialist) to become familiar with the clinical aspect of the disease, including diagnosis and therapy.