Risk, V.

Necrotising fasciitis involving the periorbita is a devastating infection. Potential outcomes range from severe disfigurement, loss of the eye and even to death. Early recognition is critical, although its initially non-distinctive appearance frequently delays diagnosis and treatment. Herein, the authors have performed a systematic review of previously published cases including clinical features, diagnoses and differential diagnoses, pathological characteristics and management. Periorbital necrotising fasciitis is seen mainly in adults with a female predominance (54%); about one-half (47%) of the patients were previously healthy. The infection can follow local blunt trauma (17%), penetrating injuries (22%) and face surgery (11%), but in about one-third of cases (28%) no cause was identified. Non-specific erythema and localised painful swelling of the eyelids characterise the earliest manifestation of the disease, followed by formation of blisters and necrosis of the periorbital skin and subcutaneous tissues. The causative organism in periorbital infection was mainly β-haemolytic Streptococcus alone (50%), occasionally in combination with Staphylococcus aureus (18%). The overall mortality rate was 14.42%. The main risk factor for mortality was the type of causative organism, since all reported cases of death were caused by β-haemolytic Streptococcus alone or associated with other organisms. Unlike necrotising fasciitis affecting other body sites, there was not a strong correlation with age >50 years or the presence of associated chronic illness. Management of periorbital necrotising fasciitis is then based on early distinction of symptoms and signs and aggressive multidisciplinary treatment. Thus, the delay between initial debridement and initiating parenteral broad-spectrum antibiotic therapy should be considered the most critical factor influencing morbidity and mortality.

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Nerve injuries are possible during facial rejuvenation surgery. The great auricular nerve has been studied; however, little is known about the lesser occipital nerve and its relevance in facial rejuvenation surgery. To understand the importance of the lesser occipital nerve in a face lift procedure, the specific anatomy of the nerve was studied in the laboratory in 19 hemifaces, with additional nerve observations in the operating room. The course of the lesser occipital nerve, its branches, and the relationship with the surrounding structures were evaluated and recorded. The great auricular nerve was also dissected to compare the two nerve territories. In the majority of the dissections, the lesser occipital nerve supplied the superior ear and the mastoid area, whereas the great auricular nerve innervated the inferior ear and a portion of the preauricular area. The nerves, however, were variable in size and distribution. Five lesser occipital nerves provided the dominant supply to the ear, compensating for a small great auricular nerve contribution. Therefore, injury to the lesser occipital nerve can result in a major sensory deficit of the ear. We also found the lesser occipital nerve to have a subcutaneous course at a proximal and variable level. These nerve branches can be superficial, and therefore postauricular flap dissection can injure the nerve if the flap is dissected at the fascial level. We therefore suggest that the dissection be at a more superficial level to avoid nerve injury. And finally, if SMAS/platysma suspension sutures are placed, we suggest these be done in a vertical-oblique direction along the course of the lesser occipital nerve, because this should minimize the possibility of trapping terminal branches.

Any animal model of a human congenital anomaly established by iatrogenic methods involving intrauterine fetal manipulation has limited clinical applicability. A congenital model that more closely simulates the etiopathogenesis of a human anomaly may provide data that can more readily be extrapolated to that anomaly and, therefore, be used in diagnostic and management strategies. The present work provides a description and characterization of a congenital model of cleft palate in the goat. Palatal shelf closure normally occurs at approximately day 38 of gestation in the caprine species. Sixteen pregnant goats were gavaged twice daily during gestational days 32 through 41 [term, 145 days] with a plant slurry of Nicotiana glauca containing the piperidine alkaloid teratogen anabasine. Gross analysis and measurement of fetal clefts were performed at 60, 70, and 85 days gestation (four fetuses were studied at each time point). Seventeen clefted kids were sacrificed at specific intervals after birth (2 weeks, and 1, 3, and 6 months); after skull debridement and preparation, they were compared with 12 unclefted control kids. Complete clefting of the secondary palate occurred in 97 percent of the fetuses. In all cases, the cleft extended from the posterior aspect of the alveolar ridge to the uvula; the majority of these clefts were bilateral, with complete detachment of the vomer. Morphologically, these clefts were similar to human clefts. Eighteen percent of clefted newborn kids demonstrated gross maxillary hypoplasia and midfacial retrusion at birth with a relative Class III malocclusion. Direct measurement of the congenital caprine skulls confirmed these findings. The incidence of midfacial growth abnormalities in these clefted animals raises questions regarding the etiopathogenesis of facial dysmorphology that is unrelated to scarring of the maxilla. This congenital cleft palate model is currently being used to explore these questions and others related to craniofacial growth and palatal function after in utero repair.

These three new cases and the review of 43 cases reported in the literature call attention to the clinical features of carcinomas arising in the context of rhinophyma, raising further concerns about the possible association between these two entities. The need for histologic examination of all surgically removed tissue in patients with rhinophyma is highlighted. Several macroscopic changes, including ulceration, drainage, and a rapid growth pattern, should alarm the physician and should be considered as suspicious of a malignant degeneration. Unexpected clinical modifications of a preexisting long-lasting silent rhinophyma could indicate the possibility of hidden malignancy rather than a rhinophyma itself. Although evidence of an association between the two entities remains inconclusive, half of the malignancies reported in our review were incidental findings associated with rhinophyma. Thus, since rhinophyma should not be considered solely a cosmetic problem, we recommend that all specimens be reviewed by a pathologist and if malignancy is diagnosed, re-excision with clear margins should be achieved when necessary with periodic follow-up.