• Korean Journal of Veterinary Research
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• v.35 no.2
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• pp.353-360
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• 1995

Gross and light microscopic findings are described for 34 canine sweat gland neoplasms including tumors derived from apocrine gland in anal sac and ceruminous gland in ear. Affected dogs are usually 5.2 years and sex predilection have not been seen. Sweat gland carcinoma(n=19) is predominant type for sweat gland neoplsm, while papillary syringadenoma(n=2) and spiradenoma(n=2) are rare type in this study. Distinct patterns identified in cutaneous sweat gland carcinoma are tubular(n=7), solid(n=5), mixed(n=4), papillary(n=2) and signet-ring(n=1). Mixed tumors which are characterized by myxomatous and chondroid metaplasia are seen in cutaneous sweat and ceruminous gland. The carcinoma derived apocrine gland of the anal sac induces humoral hypercalcemia of malignancy in two dogs in this study. Histologically, apocrine gland carcinoma of the anal sac has distinct rossette formation.

• Archives of Craniofacial Surgery
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• v.19 no.4
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• pp.287-290
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• 2018

Tumoral calcinosis is a condition characterized by deposition of calcium salts in the skin and subcutaneous tissue, commonly found around the joints. However, tumoral calcinosis of the auricle is extremely rare. We present the case of a 13-year-old boy with tumoral calcinosis of the helix of the ear auricle. A 13-year-old boy presented with a 10-year history of an enlarging mass on the left auricle. The mass was hard, non-tender, and non-compressible. The patient had no history of trauma. Complete surgical excision and pathological examination of the specimen was performed. The final diagnosis of the excised mass was tumoral calcinosis. After 9 months of follow-up, there were no signs of recurrence of the tumor and the patient was satisfied with the surgical results. Tumoral calcinosis of the auricle is extremely rare and may be misdiagnosed as other tumors. Pathological examination is essential for definitive diagnosis and complete surgical excision should be considered as the treatment of choice.

• Archives of Craniofacial Surgery
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• v.18 no.1
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• pp.46-49
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• 2017

Nevus sebaceus is a hamartoma of the sebaceous gland that occurs congenitally, from which various secondary tumors can arise with a prevalence of 5%-6%. Benign neoplasms commonly arise from nevus sebaceous, but they have a very low malignant potential. Two neoplasms may occasionally arise within the same lesion, but it is rare for three or more neoplasms to occur in a nevus sebaceus simultaneously. A 61-year-old male patient was admitted to our hospital for a $4cm\times2.5cm$ growing tumor in a verrucous form arising within a periauricular nevus sebaceus in the post auricle of the left ear that had developed 30 years earlier. The nodule was diagnosed as 3 different types of tumors: trichilemmoma, desmoplastic trichilemmoma, and basal cell carcinoma. To our knowledge, this is the first report of the coexistence of three different tumors arising from nevus sebaceous. It contain malignant neoplasm also. Surgeons should be aware of the need for close monitoring and early complete surgical excision of sebaceous nevus in order to improve patient outcomes.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.14
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• pp.5701-5707
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• 2014

Background: Salivary gland tumours, which account for approximately 3% of head-neck cancers, are a heterogeneous group and thus it is difficult to identify their epidemiological characteristics. The aim of this study is to determine demographic features and histopathologic distribution of parotid neoplasms in a large sample from Turkey. Materials and Methods: This study was conducted retrospectively on 136 parotidectomy materials from operations between May 2009-May 2013. Age, gender, tumor diameter, histopathological diagnosis and surgical margin status were recorded. Results: The benign cases were 112 (82.4%), while the malignancies were 24 (17.6%). The accuracy rate of FNAC was 91%. There were 46 (33.8%) male and 90 (66.2%) female patients. Female/male ratio (M/F=0.5) was two, the Warthin (WT) tumor being more apparent in males (p<0.05). Pleomorphic adenoma (PA) was detected most frequently among benign pathologies at 61.6% (69/112), while the Warthin Tumor (WT) was detected as the second most frequent tumor at 20.5% (23/112). Mucoepidermoid carcinoma (MEC) and carcinoma ex pleomorphic adenoma (Ca ex PA) were detected at equal frequency at 20.8% (5/24) among malign tumors. These were followed by acinic cell carcinoma at 16.7% (4/24). While the surgical margin was positive in ten patients with malignant tumors (41.7%), all of the benign tumors were negative (p<0.01). No significant difference was detected in the age-gender of patients, tumor size and distribution of sites among benign and malignant groups (p>0.05). Conclusions: Pleomorphic adenoma is the most frequently reported benign tumor almost in all global literature. Yet, the distribution of malignant tumors displays geographical differences. Based on these data, we believe that our findings will provide a significant contribution to future epidemiological studies. We think that it will be beneficial to generate awareness on parotid tumors and ensure a fight against smoking as with all head-neck cancers.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.38 no.6
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• pp.366-370
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• 2012

Initially described in 1929, Warthin's tumor is a benign neoplasm predominantly found in the parotid gland of the salivary glands. Warthin's tumor is synonymous for cystadenoma lymphomatosum, adenolymphoma, and cystadenolymphoma. This tumor usually causes minimal pain, but the patient may complain of tinnitus, pain in the ear, or deafness. The tumor is treated with surgical excision, which is easily performed due to the superficial location of the tumor. In our case, a 69-year-old man visited our clinic primarily complaining of swelling in the left parotid gland area. Computed tomography revealed well-defined margins of the tumor in the superficial lobe of the left parotid gland and heterogeneous contrast enhancement. We performed superficial parotidectomy, with the pathological examination confirming Warthin's tumor. We report a typical case of Warthin's tumor and a literature review.

• Archives of Craniofacial Surgery
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• v.24 no.2
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• pp.83-86
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• 2023

Angiomyolipomas are usually found in the kidneys of patients with tuberous sclerosis. They occur less frequently in organs such as the liver, the oral cavity, the nasal cavity, the heart, the large intestines, and the lungs. Angiomyolipomas of the skin are extremely rare, and cutaneous angiomyolipomas generally occur on the elbow, the ends of digits, the ear, and the glabella. Herein we present a rare case of angiomyolipoma occurring on the face-specifically, the right upper eyelid. We propose that upper eyelid angiomyolipoma is a hamartomatous, rather than neoplastic, lesion. Although angiomyolipoma in the periocular area is rare, it should be considered in the differential diagnosis of clinically benign masses. and regular follow-up is warranted.

• Korean Journal of Head & Neck Oncology
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• v.39 no.2
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• pp.31-34
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• 2023

Pilomatricoma is characterized by a semi-transparent epidermis, especially pigmented pilomatricoma, containing melanocytes in basaloid cells, which are dark and purple, resembling vessel-derived skin masses. If the vascularity at doppler ultrasound is high before surgery, it may be misdiagnosed. A 10-year-old female patient visited our clinic because of a mass in the right ear triangular fossa. Ultrasonography was performed, and a vascular-origin tumor was suspected because of the high vascularity. The excised mass was diagnosed as pigmented pilomatricoma by a pathologist. Pilomatricoma is mistaken for other masses owing to its various phenotypes. A misdiagnosis can lead to misdirected strategies which can cause delayed treatment and can result in an increase in the size of the pilomatricoma, making the sequalae of surgery more complicated. For proper treatment, careful examination and evaluation are required before surgery.

• Archives of Plastic Surgery
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• v.44 no.6
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• pp.502-508
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• 2017

Background Breast-conserving therapy is defined as a breast-conserving wide local excision (WLE) of a mammary tumour combined with postoperative radiotherapy. Immediate restoration of the mammary shape by use of breast reduction techniques (volume displacement) or tissue replacement techniques (volume replacement) is gaining popularity to prevent breast malformation. Methods To date, using the internal mammary artery perforator (IMAP) flap has been suggested for immediate volume replacement after WLE, but has never been evaluated in a published study. Results We applied this flap in 12 women (mean age, 56.1 years) after WLE (mean specimen weight, 46.5 g) of the medial aspect of the breast. Over a median follow-up of 35.3 months (standard deviation, 1.2 months), 4 women needed repeated surgery for dog-ear correction of the donor site. Conclusions In our experience, the use of an IMAP flap was a reliable technique with good cosmetic outcomes after oncoplastic reconstruction. In this series, donor site revision often proved necessary initially, but we showed that this may easily be prevented.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.30 no.3
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• pp.234-236
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• 2004

Actinomycosis is a rare form of disease that is caused by Actinomyces such as A. israelii and A. bovis, which may take the form of chronic, purulent inflammation of deep tissue evolves with necrosis, formation of sinuses and fibrotic mass. This disease arises in the head and neck area mainly in 55% and other places like that chest and the gastrointestinal tract occurs in 45%. Actinomycosis can present in a variety of forms and may mimic other infections or even neoplasms. Our case was 44-year-old man having painful indurated mass in his left TMJ area, otorrhea in his left ear and trismus. He was treated with surgical excision and biopsy confirmed actinomycosis. And after that, he was cured successfully with antibiotic therapy. We report this case of actinomycosis that developed in the left TMJ area with review articles.

• Clinical and Experimental Otorhinolaryngology
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• v.11 no.4
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• pp.259-266
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• 2018

Objectives. Carcinomas of the external auditory canal (EAC) are rare, and management remains challenging. Previous studies seeking prognostic factors for EAC cancers included cancers other than carcinomas. In this study, we analyzed the treatment outcomes of, prognostic factors for, and survival rates associated with specifically squamous cell carcinoma (SCC) of the EAC. Methods. A retrospective review of 26 consecutive patients diagnosed with SCCs of the EAC in a 10-year period was performed in terms of clinical presentation, stage, choice of surgical procedure, and adjunct therapy. Overall survival (OS) and recurrence-free survival (RFS) were calculated and univariate analysis of prognostic factors was performed. Results. The median age of the 26 patients with SCCs of the EAC was 63 years (range, 40 to 72 years), and 16 males and 10 females were included. According to the modified University of Pittsburgh staging system, the T stages were T1 in 11, T2 in six, T3 in four, and T4 in five cases. The surgical procedures employed were wide excision in three cases, lateral temporal bone resection (LTBR) in 17, and extended LTBR in four, and subtotal temporal bone resection in two. Two patients underwent neoadjuvant chemotherapy, and two underwent adjuvant chemotherapy. One patient received preoperative radiation therapy, and eleven received postoperative radiation therapy. Of the possibly prognostic factors examined, advanced preoperative T stage and advanced overall stage were significant predictors of RFS, but not of OS. Conclusion. The advanced T stage and overall stage were associated with decreased survival after surgical treatment in patients with SCC of the EAC, highlighting the importance of clinical vigilance and early detection.