Nodular scalp mass as the first presentation of pulmonary large cell neuroendocrine carcinoma: a case report

Metastasis of lung cancer to the skin is uncommon, presenting in 0.22% to 12% of lung cancer patients, and it is extremely rare for skin metastasis to be the first clinical manifestation of lung cancer. In the few cases where skin metastasis has been reported as the first sign of lung cancer, the patients were typically heavy smokers or had preexisting respiratory diseases and symptoms. This prompted clinicians to consider skin metastasis of a pulmonary malignancy. Large cell neuroendocrine carcinoma (LCNEC) is a rare type of lung cancer that accounts for approximately 3% of lung cancers. LCNEC mainly metastasizes to visceral organs, such as the liver, bone, and brain, and it only shows metastasis to the skin in very rare cases. Herein, we report an unusual case of a metastatic skin lesion as the first sign of primary pulmonary LCNEC, in a 63-year-old woman with no pulmonary symptoms or personal history of smoking or pulmonary disease.

Diagnosis of split fractures of the mandible in adults

Background@#Mandibular split fractures, in which the fracture occurs exclusively in the posterior wall, are uncommon. This study aimed to enhance clinicians’ understanding of mandibular split fractures and offer insights for future research. @*Methods@#This study included six patients who visited our hospital between January 2020 and June 2023 and were diagnosed with mandibular split fractures. We retrospectively collected data from patients’ medical records on their age, sex, symptoms, mechanism, impact site, associated injuries, and treatment method, as well as the location, pattern, and number of fractures observed on computed tomography (CT) and panoramic images. The frequency of split fractures among all mandibular fractures was calculated. @*Results@#The six patients included three men (50%) and three women (50%), ranging in age from 20 to 71 years (mean age, 49.8 years). The split fractures were located in the symphysis in one patient (16.7%), symphysis to parasymphysis in two patients (33.3%), parasymphysis in one patient (16.7%), and parasymphysis to the body in two patients (33.3%). Four patients (66.7%) had condylar head fractures, while two patients (33.3%) had single split fractures. The mechanism of trauma was a slip-down incident in four cases (66.7%), while two cases (33.3%) were caused by motorcycle traffic accidents. Four patients (67%) underwent intermaxillary fixation, while two patients (33%) improved with conservative treatment. Split fractures were diagnosed in all six patients on CT, whereas the fracture line was not clearly visible on panoramic images. Mandibular split fractures accounted for 5.6% of all mandibular fractures. @*Conclusion@#This study provides insights into the clinical characteristics of rare mandibular split fractures and the diagnostic imaging findings. Furthermore, CT scans and three-dimensional image synthesis-instead of panoramic images-may be essential for accurately diagnosing mandibular fractures, including mandibular split fractures, in the future.

Superficial angiomyxoma of the posterior neck

Superficial angiomyxoma (SA) is a rare, benign, cutaneous soft tissue tumor. It is composed of myxoid matrix and blood vessels. Herein, we report a case of a solitary SA on the posterior neck of a 6-year-old boy. An analysis of the biopsied specimen showed a prominent myxoid stroma with thin-walled, branching blood vessels, revealing the presence of an SA. SA especially that originating in the posterior neck, is rarely seen and should be considered as a differential diagnosis for a solitary mass in the posterior neck.

A case of nodal marginal zone B-cell lymphoma of the lower eyelid

A marginal zone B-cell lymphoma is a type of B-cell lymphoma which is normally located at the margins of the secondary lymph node follicles. According to 2008 World Health Organization (WHO) classification, there are three main types classified according to the location of invasion: nodal lymphoma in the lymph nodes, splenic lymphoma in the spleen, and extranodal lymphoma in other locations. Recently, we have experienced a rare case of primary nodal marginal zone lymphoma that arose in the lower eyelid. Therefore, we report this case with a review of literature.

A Quick and Easy Technique for Lateral Canthoplasty Using Reverse V-Y Advancement: A Case Report

Cosmetic lateral canthoplasty has become popular among Asians in the last few decades, but few techniques have withstood the test of time to be accepted as both effective and noninvasive, with minimal complications. Novel techniques have been developed, but are not free from complications. Moreover, these methods often have limited indications and may require a rather long learning curve to master. Herein, the authors present their experiences performing a simple lateral canthoplasty procedure in 61 patients using a slightly modified V-Y advancement flap, previously known as the Uchida method.

Aesthetic Correction of Severe Facial Asymmetry in a Deformational Plagiocephaly Patient: A Case Report and Literature Review

Deformational plagiocephaly (DP) (also referred to as positional plagiocephaly) has long posed challenges for plastic surgeons because it is difficult to differentiate from several other diseases, such as unilateral coronal synostosis, hemifacial microsomia, and unilateral lambdoidal craniosynostosis. These diseases can actually masquerade as DP or vice versa. Only in recent years has the differential diagnosis among these diseases become possible through improved imaging modalities, such as computed tomography, and a greater understanding of their pathophysiology. Herein, we report a rather rare, yet severe, form of DP that can easily be confused with the aforementioned diseases.

Angiomyolipoma of the Glabellar Region

Angiomyolipomas are hamartomatous lesions consisting of smooth muscle bundles, thick-walled blood vessels, and mature adipocytes. They are usually found in the kidneys of tuberous sclerosis patients and more rarely in other organs, such as the liver, the oral cavity, the sinonasal tract, the heart, the large intestines, the lungs, and the skin. Cutaneous angiomyolipoma has shown to be very rare and generally occurs at the ends of the digits, the elbows, the ears, and the nose. Herein, we report the first documented case of angiomyolipoma of the glabellar region.

Ectopic Preauricular Sinus in a Facial Cleft and Microtia Patient

Preauricular sinus is a congenital malformation that is very commonly encountered among the general population and it has especially high prevalence among Asians when compared to other ethnic groups. It can often go unnoticed or easily overlooked by the patient or even by doctors because most of them are asymptomatic and is most of the time only a tiny pit that can be trivial in terms of aesthetics. We report a very rare and unique case that has no precedence what so ever; hence no reported case in the literature: an ectopic preauricular sinus in a facial cleft and microsomia patient.

Ectopic Preauricular Sinus in a Facial Cleft and Microtia Patient

Preauricular sinus is a congenital malformation that is very commonly encountered among the general population and it has especially high prevalence among Asians when compared to other ethnic groups. It can often go unnoticed or easily overlooked by the patient or even by doctors because most of them are asymptomatic and is most of the time only a tiny pit that can be trivial in terms of aesthetics. We report a very rare and unique case that has no precedence what so ever; hence no reported case in the literature: an ectopic preauricular sinus in a facial cleft and microsomia patient.

Cosmetic Lateral Canthal Lengthening with 2 Tarsal Bites Made in the Periosteum

Asian eyes may have a narrow palpebral fissure and an upward Mongolian slant that is sometimes perceived as an angry or unfavorable expression. Among the various methods of oculoplastic surgery, lateral canthoplasty can alter the structure of the eyes such that they appear much bigger, thereby conveying a more favorable expression. We performed a lateral canthoplasty in which the lower eyelid tarsus was fixed to the periosteum while the lateral canthus was moved downward and backward. Here, we describe the surgical procedure we used to perform this technique.

Cosmetic Lateral Canthal Lengthening with 2 Tarsal Bites Made in the Periosteum

Asian eyes may have a narrow palpebral fissure and an upward Mongolian slant that is sometimes perceived as an angry or unfavorable expression. Among the various methods of oculoplastic surgery, lateral canthoplasty can alter the structure of the eyes such that they appear much bigger, thereby conveying a more favorable expression. We performed a lateral canthoplasty in which the lower eyelid tarsus was fixed to the periosteum while the lateral canthus was moved downward and backward. Here, we describe the surgical procedure we used to perform this technique.

Basosquamous Carcinoma of the Hand in a Radiologist with Prolonged Radiation Exposure

Basosquamous carcinoma is a rare epithelial neoplasm, mostly occurring on the head and neck area. There are few reports of basosquamous carcinoma on the finger. Here, the authors experienced treatment of basosquamous carcinoma on the finger in a radiologist. Treatment was successful by the wide excision and the cross-finger flap operation with a split-thickness skin graft and K-wire fixation. The rare finger basosquamous carcinoma case in our study is likely to be linked with radiation. Considering of the high reliance of C-arm during hand surgeries, we think that the hand of the surgeons should be more strictly protected.

Application of Rapid Prototyping Technique and Intraoperative Navigation System for the Repair and Reconstruction of Orbital Wall Fractures

BACKGROUND: Restoring the orbital cavity in large blow out fractures is a challenge for surgeons due to the anatomical complexity. This study evaluated the clinical outcomes and orbital volume after orbital wall fracture repair using a rapid prototyping (RP) technique and intraoperative navigation system. METHODS: This prospective study was conducted on the medical records and radiology records of 12 patients who had undergone a unilateral blow out fracture reconstruction using a RP technique and an intraoperative navigation system from November 2014 to March 2015. The surgical results were assessed by an ophthalmic examination and a comparison of the preoperative and postoperative orbital volume ratio (OVR) values. RESULTS: All patients had a successful treatment outcome without complications. Volumetric analysis revealed a significant decrease in the mean OVR from 1.0952±0.0662 (ranging from 0.9917 to 1.2509) preoperatively to 0.9942±0.0427 (ranging from 0.9394 to 1.0680) postoperatively. CONCLUSION: The application of a RP technique for the repair of orbital wall fractures is a useful tool that may help improve the clinical outcomes by understanding the individual anatomy, determining the operability, and restoring the orbital cavity volume through optimal implant positioning along with an intraoperative navigation system.

Biomechanical Analysis of Resorbable Barbed Suture Tenorrhaphy

PURPOSE: To evaluate the tensile strength and repair-site profile of a technique of resorbable barbed suture tenorrhaphy. METHODS: Forty-eight flexor digitorum profundus tendons were collected from the 8 adult cadavers. In the test group, the tendons were sutured using absorbent 2-0 barb knotless sutures in a 2-strand or 4-strand zig-zag pattern. In the control group, 2-0 Prolene and 3-0 polydioxanone (PDS) were used to suture the tendons using the 2-stand Modified Kessler method and the 4-strand cruciate suture method. Using a tensile force measurement machine, the breaking load (N) and the stiffness (N/mm) were measured. The types of rupture were categorized into suture breaking, knot rupture, and pullout. RESULTS: In the comparative analysis between the absorbent 2-0 Quill (Angiotech Pharmaceuticals, Canada) suture that used the 2-strand core suture and the 3-0 PDS and 2-0 Prolene sutures, the average breaking load for the 2-0 Quill suture was 26.83±7.47 N, and 21.96±6.78 N and 17.20±4.93 N for the 2-0 Prolene and 3-0 PDS sutures. In the comparison using the 4-strand core suture, the average breaking load for the 2-0 Quill suture was 62.50±13.34 N, and 22.35±5.72 N and 18.67±4.27 N for the 2-0 prolene and 3-0 PDS sutures. The most common type of rupture were knot rupture. CONCLUSION: For flexor tendon sutures using the absorbent barb sutures, compared to the conventional 2-0 Prolene or 3-0 PDS sutures, absorbent barbed sutures have a higher tensile strength.

Semicircular Horizontal Approach in Breast Reduction: Clinical Experience in 38 Cases

BACKGROUND: Various techniques are used for performing breast reduction. Wise-pattern and vertical scar techniques are the most commonly employed approaches. However, a vertical scar in the mid-lower breast is prominent and aesthetically less pleasant. In contrast, a semicircular horizontal approach does not leave a vertical scar in the mid breast and transverse scars can be hidden in the inframammary fold. In this paper, we describe the experiences and results of semicircular horizontal breast reductions performed by a single surgeon. METHODS: Between September 1996 and October 2013, our senior author used this technique in 38 cases in the US and at our institution. We used a superiorly based semicircular incision, where the upper skin paddle was pulled down to the inframammary fold with the nipple-areola complex pulled through the keyhole. RESULTS: The average total reduction per breast was 584 g, ranging from 286 to 794 g. The inferior longitudinal pedicle was used in all the cases. The average reduction of the distance from the sternal notch to the nipple was 13 cm (range, 11-15 cm). The mean decrease in the bra cup size was 1.7 cup sizes (range, a decrease of 1 to 3). We obtained very satisfactory results with a less noticeable scar, no complication such as necrosis of the nipple or the skin flap, wound infection, aseptic necrosis of the breast tissue, or wound dehiscence. One patient had a small hematoma that resolved spontaneously. CONCLUSIONS: This technique is straightforward and easy to learn, and offers a safe, effective, and predictable way for treating mammary hypertrophy.

Clinical Experience of Matriderm(R) with Autologous Skin Graft in Full Thickness Burns

PURPOSE: The various skin substitutes for the reconstruction of full thickness skin defects after burn or excision of burn scars have been reported to reduce donor site morbidity and skin durability after skin graft. Last a decade, many skin substitutes have been frequently used for this purpose. Recently as one of dermal templates, Matriderm(R) (Dr. Suwelack Skin and Health Care AG, Billerbeck, Germany), a elastin-collagen complex, has been introduced. We present clinical experiences using Matriderm(R) for reconstruction of skin defects after burn. METHODS: We have experienced 8 cases of reconstruction of the full thickness skin defects of the acute burn wounds or burn scar contractures using Matriderm(R) in 6 patients. After insetting this dermal templates on the skin defects sites, simultaneously 8~12/1000 inch split-thickness skin grafts were over-grafted immediately. The rate of graft engraftment, appearance, rate of contractures, durability and sensibility of grafted area have been observed. RESULTS: The skin defects on face, hand, extremities were reconstructed and it's size were varied from 2x2 cm2 up to 8x2 cm2. The follow-ups varied between 4 months and 1.4 years. The rate of engraftment of Matriderm(R) site was mean 97.2% and it was relatively successful. The rates of contractures of graft site were ranged from 8 to 59.4%. In case of postburn scar contractures of lower lid, severe contractures was noted. After long follow ups, there were reduced sensation, no sweating on grafted area of Matriderm(R) sites. At post operative 6 weeks, on microscopic examination of H/E stain, thick fibrosis, fragmentation of foreign materials, and on Masson's trichrome stain, dermal sclerosis were shown, and no skin appendage structures was noted. After long follow ups, the appearance, pliability and durability of the grafted area showed relatively good. But sensory return was incomplete. By using relatively thin STSG, the morbidity of donor site could be reduced. CONCLUSION: In the cases of reconstruction of postburn skin defects due to burn and after release of burn scar contractures, we have used a dermal templates, Matriderm(R), and simultaneously relatively thin STSG have been done. After follow ups, Matriderm(R) site showed in good results in terms of the engraftment, pliability and durability. Further studies for clinical use should be imperative.

Medial Epicanthoplasty Using Direct Excision and Redraping Technique

Recently, new epicanthoplasty methods with reduced scarring have been developed, such as skin redraping method, periciliary epicanthoplasty, etc. Although these methods increase the length of horizontal palpebral fissure, the remnant skin and orbicularis oculi muscle portion that covers one third of medial canthus reduce satisfaction of aesthetic outcome. In order to overcome this limitation, the authors performed redraping after direct excision of medial orbicularis oculi muscle and excess skin to correct epicanthal fold. From April of 2006 to March of 2009, the authors performed medial epicanthoplasty using direct excision and redraping method to correct epicanthal folds in the eyelids of 72 Asian patients. The epicanthoplasty was performed combining with incisional or non-incisional double eyelid operation, ptosis correction, augmentation rhinoplasty and lateral canthal lengthening. Mean follow up was 11 months(6 months to 2 years). Most of the patients were satisfied with the results. Our technique has delivered esthetically superior results with minimal postoperative scar and no major complication. The advantages of our direct excision and redraping technique are as follows: 1) simple in design, 2) versatile in its application, 3) double fold looks clear especially in the medial 1/3 by eliminating the redundant skin and orbicularis muscle.

An Anatomic Study of the Extensor Tendons of the Human Hand

PURPOSE: Hands are the chief organs for physically manipulating the environment, using anywhere from the roughest motor skills to the finest, and since the fingertips contain some of the densest areas of nerve endings on the human body, they are continuously used organ with complex functions, and therefore, often gets injured. To prevent any functional loss, a detailed anatomical knowledge is required to have a perfect surgical treatment. Also it is necessary to have a thorough understanding of arrangements of the human extensor tendons and intertendinous connections when tenoplasty or tendon transfer is required. We performed a study of the arrangements of the human extensor tendons and the configuration of the intertendinous connections over the dorsum of the wrist and hand. METHODS: A total of 58 hands from Korean cadavers were dissected. The arrangements of extensor indicis proprius, extensor digitorum communis, and extensor digiti minimi tendons and intertendinous connections were studied. RESULTS: The most common distribution patterns of the extensor tendons of the fingers were as follows: a single extensor indicis proprius(EIP) tendon which inserted ulnar to the extensor digitorum-index(EDC-index); a single EDC-index; a single EDC-middle; a double EDC-ring; an absent EDC-little; a double extensor digiti minimi(EDM), a single EDC-index(98.3%), a single EDC-middle(62%), a double EDC-ring(50%), and an absent(65.5%) or a single (32.8%) EDC-little. A double(70.6%) EDM tendons were seen. Intertendinous connections were classified into 3 types: type 1 with thin filamentous type, type 2 with a thick filamentous type, and type 3 with a tendinous type subdivided to r shaped 3r type and y shaped 3y type. The most common patterns were type 1 in the 2nd intermetacarpal space, type 2 in the 3rd intermetacarpal space, and type 3r in the 4th intermetacarpal space. And in the present study, we observed one case of the extensor digitorum brevis manus(EDBM) on the boht side. CONCLUSION: A knowledge of both the usual and possible variations of the extensor tendon and the intertendinous connection is useful in the identification and repair of these structures.

Aesthetic Labia Minora Reduction with Medial Central Wedge Resection and Lateral Hockey Stick Resection / 대한폐경학회지

Aesthetic reduction of the labia minora has gained popularity. Hypertrophy of the labia minora is aesthetically and functionally unsatisfactory to some women. This study focused on one of the reduction techniques based on the degree of labial hypertrophy and the aesthetic preferences of the patient for labial edge color and contour. The five patients underwent labia minora reduction between August 2009 and August 2010. The ages ranged from 11~51 years (mean age, 29.2 years). All of the patients underwent medial central wedge resection and lateral hood resection of the labia minora. All patients were satisfied with the aesthetic appearance of the external genitalia, relief of chronic irritation, and improved hygiene; there were no complications. The patients reported no interference with usual daily activities or with intercourse. We describe a simple medial central wedge and lateral hood resection to reduce enlarged labia minora that depends on the degree of hypertrophy. These methods give the same satisfaction between pre- and post-menopausal women.

Aesthetic Labia Minora Reduction with Medial Central Wedge Resection and Lateral Hockey Stick Resection / 대한폐경학회지

Aesthetic reduction of the labia minora has gained popularity. Hypertrophy of the labia minora is aesthetically and functionally unsatisfactory to some women. This study focused on one of the reduction techniques based on the degree of labial hypertrophy and the aesthetic preferences of the patient for labial edge color and contour. The five patients underwent labia minora reduction between August 2009 and August 2010. The ages ranged from 11~51 years (mean age, 29.2 years). All of the patients underwent medial central wedge resection and lateral hood resection of the labia minora. All patients were satisfied with the aesthetic appearance of the external genitalia, relief of chronic irritation, and improved hygiene; there were no complications. The patients reported no interference with usual daily activities or with intercourse. We describe a simple medial central wedge and lateral hood resection to reduce enlarged labia minora that depends on the degree of hypertrophy. These methods give the same satisfaction between pre- and post-menopausal women.