Malignant proliferating trichilemmal tumor.
نویسندگان
چکیده
منابع مشابه
A Rare Cutaneous Adnexal Tumor: Malignant Proliferating Trichilemmal Tumor
Proliferating trichilemmal tumors (PTTs) are neoplasms derived from the outer root sheath of the hair follicle. These tumors, which commonly affect the scalp of elderly women, rarely demonstrate malignant transformation. Although invasion of the tumors into neighboring tissues and being accompanied with anaplasia and necrosis are accepted as findings of malignancy, histological features may not...
متن کاملGiant Proliferating Trichilemmal Tumor
461 of publication of this case and any accompanying photographs. A physical examination showed a huge tumoral lesion, oval in shape, situated in the central occipital area slightly to the left side with an irregular surface area. It was associated with ulceration as well as serous discharge but with no bleeding. The mass was solid in consistency, mobile, measuring about (21 cm×17 cm ×12 cm), a...
متن کاملProliferating trichilemmal tumor--case report.
Proliferating trichilemmal tumor (PTT) is an uncommon neoplasm arising from the follicular isthmus. Its histological characteristic is the presence of trichilemmal keratinization. PTT usually presents as a solitary nodule on the scalp of elderly women. We describe a case of a PTT on the gluteal region (buttocks) of a 16-year-old female, presenting as a solitary nodule.
متن کاملMalignant proliferating trichilemmal tumour: a case report.
An 86-year-old man presented with a painless, pea-sized growth over the left angle of his jaw, which had been gradually enlarging over two years. A clinical diagnosis of pilar cyst was made. Histopathological examination of the mass revealed a malignant proliferating trichilemmal tumour. During follow-up 4 months later, a palpable small upper jugular lymph node was noted at the left side of the...
متن کاملProliferating trichilemmal tumor of the nose*
Proliferating trichilemmal tumor is a rare tumor originating in the external root sheath, that is usually found in the scalp of middle-aged or elderly females. Its histologic appearance may not correlate with its clinical behavior. In addition, there are no guidelines available for the treatment of these tumors, making its management a challenge for physicians. We report the case of a 53 year-o...
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ژورنال
عنوان ژورنال: Skin Cancer
سال: 1990
ISSN: 1884-3549,0915-3535
DOI: 10.5227/skincancer.5.68