Pilomatrixoma of the Earlobe
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Abstract:
BACKGROUND Pilomatrixoma most commonly occurs in the head and neck region, appearing primarily in the first two decades of life. The lesion is described as a tumor with differentiation toward hair cells and surgical excision is the treatment of choice. OBJECTIVE We report an uncommon localization of a perforating type pilomatrixorna of 5 × 4 × 4 cm in size that developed from the earlobe. METHODS Histopathological examination revealed pilomatrixorna. Total resection of the tumor was performed. The earlobe was reconstructed by forming a posterior-superior pedicled skin flap. RESULTS No recurrence was observed and a good cosmetic result was obtained. CONCLUSION Local recurrence does not generally occur if the tumor is completely removed. The case we present is of interest in having a history of trauma to the region and a relatively rapid growth with perforation of the overlying skin.Keywords:
Ear lobe
Pilomatrixoma
Perforation
Histopathological examination
患儿 男,6个月龄,因发现右耳垂肿物进行性增大3个月余入院.患儿于3个月前被父母发现右耳垂肿物,初为绿豆大小,逐渐增大至成人指尖大小,无疼痛、破溃.查体:右耳垂皮下椭圆形肿物大小约1.5 cm×1.5 cm×2.0 cm,质硬,无压痛,与皮肤粘连,表面呈紫红色,周围皮肤无异常(图1).头、颈部无肿大淋巴结.
Ear lobe
Pilomatrixoma
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Background: Skin adnexal tumours are a category of rare tumours. They usually present as painless nodules and papules. The diagnosis of these tumours poses a challenge, because there is usually a discrepancy in clinical and histopathological diagnosis.
Aims: To study the skin biopsies received in our department and compare their clinical and histopathological diagnosis.
Material and methods: Prospective study of skin biopsies received in our department over a period of 1 year. The biopsies were processed and stained with haematoxylin and eosin and studied under the light microscope.
Results: Out of the 26 cases studied, 25 were found to be benign tumours with a single case of keratoacanthoma. The most common tumour encountered was pilomatricoma and the least common was syringoma. Only four cases showed clinical correlation with histopathological diagnosis.
Conclusion: It can be therefore concluded that skin adnexal tumours are rare tumours which need histopathological examination for their accurate diagnosis.
Pilomatricoma
Histopathological examination
Histopathology
Haematoxylin
Skin tumours
Pilomatrixoma
Syringoma
Stain
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BACKGROUND Pilomatrixoma most commonly occurs in the head and neck region, appearing primarily in the first two decades of life. The lesion is described as a tumor with differentiation toward hair cells and surgical excision is the treatment of choice. OBJECTIVE We report an uncommon localization of a perforating type pilomatrixorna of 5 × 4 × 4 cm in size that developed from the earlobe. METHODS Histopathological examination revealed pilomatrixorna. Total resection of the tumor was performed. The earlobe was reconstructed by forming a posterior-superior pedicled skin flap. RESULTS No recurrence was observed and a good cosmetic result was obtained. CONCLUSION Local recurrence does not generally occur if the tumor is completely removed. The case we present is of interest in having a history of trauma to the region and a relatively rapid growth with perforation of the overlying skin.
Ear lobe
Pilomatrixoma
Perforation
Histopathological examination
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Citations (21)
<p class="abstract">In this case report a bony swelling was noticed clinically which had a cystic presentation in CT imaging. After surgical removal it was sent for histopathological examination and was diagnosed as dermoid cyst. Dermoid cyst is rarely encountered lesions of head and neck region so most frequently misdiagnosed. Though this lesion is very rare but should be considered as a differential diagnosis while evaluation cystic lesions of head and neck region.</p>
Dermoid cyst
Presentation (obstetrics)
Histopathological examination
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Pilomatrixomas are uncommon in children and are frequently misdiagnosed preoperatively. We report a two-year-old female patient with an unusual localization in the earlobe. The lesion was treated by simple enucleation and in two years of follow-up there has been no evidence of recurrence. The case is being reported in view of its rarity and unusual location.
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Pilomatrixoma
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Drawing blood from the fingertips for glucose testing is painful and likely to cause tissue damage over time. Earlobes are an alternative site for glucose measurement.This work aims to validate the earlobe as an alternate test site for blood glucose testing by demonstrating valid and reliable statistically significant differences between the earlobes and standard reference sites.Blood glucose concentrations from 50 volunteers were measured and statistically analysed from the reference sites (forearm and fingertip) and earlobe. The analysis included: 1) one-way analysis of variance (ANOVA), 2) regression analysis, 3) Bland Altman analysis, and 4) Clarke Error Grid analysis.The results indicated that there is no statistically significant difference between the three blood glucose-testing methods. For the forearm-earlobe and fingertip-earlobe, all measurements were grouped around the mean of 3.7 ± 1.96 SD and 2.96± 1.96 SD, respectively. Error grid analysis showed > 97% of all earlobe and references measurements fell in Zones A and B and were in the clinically acceptable level.The results have shown that the earlobe is a valid substitute for blood glucose measurements.
Ear lobe
Repeated measures design
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The earlobe demonstrates stereotypical signs of aging, including wrinkles and volume depletion.The purpose of this study is to review the outcome of the earlobe rejuvenation developed by the senior author.We describe our earlobe rejuvenation technique refined over 10 years that uses fat grafting to the earlobe. Three raters assessed preoperative and postoperative photographs of 40 earlobes in 20 patients. Each earlobe was evaluated for volume deficiency, number of deep creases, depth of creases, and number of fine wrinkles. Inter-rater reliability was calculated. Earlobe length was also measured.Seventeen females and 3 males with average age of 63 years were followed for an average of 26 months. Postoperative improvements were observed in earlobe volume deficiency and number of fine wrinkles (P < .05). Improvements were seen in number and depth of creases and the earlobe height, but these were not significant (P > .05). No complications relating to the earlobe were observed in these patients.Fat grafting can be an effective means for earlobe rejuvenation.4 Therapeutic.
Ear lobe
Rejuvenation
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We report a case of aggressive pilomatrixoma (PMX) in a 25‐year‐old male who presented with swelling in left supraclavicular region of 2‐month duration. A diagnosis of small round cell tumor was suggested on fine‐needle aspiration cytology. He underwent wide excision of the mass. On histomorphological examination, a diagnosis of aggressive PMX was made. The swelling recurred after 3 months of complete resection and on examination had similar morphological features. The case is presented because of the potential diagnostic difficulties on cytological examination and rare occurrence of aggressive variant of PMX. Diagn. Cytopathol. 2014;42:906–911. © 2014 Wiley Periodicals, Inc.
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Histopathological examination
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<p class="abstract">Epidermoid cysts are frequently encountered cutaneous cysts. They are mostly tiny and benign swellings. But rarely they can grow huge in size and malignant transformation can also occur occasionally. Cosmetic disfigurement is also another important concern especially in head and neck region. We report a case of earlobe epidermoid cyst, a location where very few cases have been described in the literature. The cyst was completely excised and the wound was closed with nylon 4/0. Histopathological examination confirmed the diagnosis of an epidermoid cyst. The patient did not have any signs of recurrence even after six months postoperatively. Due to the possibility of malignant transformation and to ensure correct diagnosis, we consider that histopathological examination is necessary for all cysts although the clinical diagnosis could be enough.</p>
Ear lobe
Epidermoid cyst
Histopathological examination
Epidermal Cyst
Malignant Transformation
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Pilomatrixoma
Ear lobe
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