نتایج جستجو برای: sebaceous differentiation

تعداد نتایج: 230160  

2017
Felipe Ribeiro Elizabeth Leocadia Ricardo S. Macarenco Jan Lapins Pascale Huet Bengu Nisa Akay Denise Steiner

Reticulated acanthoma with sebaceous differentiation (RASD) is a rare, benign cutaneous tumor with peculiar histopathologic characteristics [1]. RASD had been described under various synonyms such as superficial epithelioma with sebaceous differentiation, sebocrine adenoma, poroma with sebaceous differentiation, and seborrheic keratosis with sebaceous differentiation [2]. Clinical differential ...

2002
Noriyuki Misago Ichiro Mihara Shin-ichi Ansai Yutaka Narisawa

The classification of benign sebaceous neoplasms has been challenged both by the assertion that sebaceous adenomas are really carcinomas and by difficulties in drawing the boundaries between sebaceomas and other lesions. We performed a clinicopathologic study of 30 cases of basaloid neoplasms with sebaceous differentiation, excluding cases of definite sebaceous carcinoma with severe nuclear aty...

Journal: :Turk patoloji dergisi 2018
R Vimal Chander P Jajaganesh Ganthimathy Sekhar S Chitra

Seborrheic keratosis is a benign lesion that is common in the trunk and head and neck regions. It shows a considerable variety of histological appearances leading to different variants. The presence of sebaceous differentiation in seborrheic keratosis is very rare and can histologically mimic benign and malignant tumors with sebaceous differentiation. We present a case of a 65-year-old male pre...

2015
Michael D. Lehrer Henry Lynch David J. Glembocki Neel B. Patel

CNS: central nervous system IHC: immunohistochemistry MMR: mismatch repair MTS: Muir-Torre syndrome M uir-Torre syndrome (MTS) is an autosomal-dominant variant of Lynch hereditary cancer syndrome. MTS is defined by sebaceous neoplasms occurring in association with 1 or more internal malignancies. The sebaceous neoplasms that characterize MTS are rare among the general population and include seb...

2007
Soo-Yeon Kim Jinoo Kim Moon Hyang Park

composed of cells that exhibit sebaceous differentiation; these tumors account for less than 0.1% of all salivary gland neoplasms (1, 2). The parotid gland is the most frequently involved of the salivary glands, where sebaceous differentiation is common (3). There is little information available in English literature on the radiologic features of this rare neoplasm, especially that of cystic se...

2014
Su-Young Jeon Dae-Cheol Kim Ki-Hoon Song Ki-Ho Kim

BACKGROUND Certain epidermal appendage tumors, including hyperplasias (hamartomas), adenomas, benign epitheliomas, primordial epitheliomas, and malignant tumors, can exhibit any stage of differentiation. Several molecules associated with tumorigenesis, such as Gli-1, pleckstrin homology-like domain, family A, member 1 (PHLDA-1), transforming growth factor (TGF)-β1, TGF-β2, and p63, are associat...

Journal: :Journal of clinical and diagnostic research : JCDR 2013
Amita K Vijayshankar S Shobha S N

Sebaceous carcinoma (SC) is a highly aggressive malignant adnexal tumor of sebaceous gland origin, accounting for less than 1% of cutaneous. Extraocular sebaceous carcinomas are more aggressive than their ocular counterpart with a predilection for the skin of head and neck, trunk, salivary glands and extremities in decreasing order of frequency. Rippled effect literally means "gradually spreadi...

Journal: :Indian journal of pathology & microbiology 2013
Yong Huang

Dermal duct tumor is a rare, benign tumor. Clinically, dermal duct tumor presents as a firm papule, plaque or nodule, particularly on the lower limbs or head and neck region. Dermal duct tumor is been classified as poroma. Poroma can have divergent differentiation, but showing prominent ductal and sebaceous differentiation is rare. We present a case of dermal duct tumor with prominent ductal an...

Journal: :Acta dermato-venereologica 2010
Kazuha Ando Yasuhiko Tamada Kazuyuki Shimizu Yoichi Akita Daisuke Watanabe Shigeru Nakamura Kazuo Hara Yoshinari Matsumoto

localization of keratins and involucdn in solar keratosis and Bowen's disease. Am J Dermatopathol 1995; 17: 151-157. 4. Mai K.T. Alhalouly T. Landry D, Stinson WA. Perkins DG, Yazdi HM. Pagetoid variant of actinic keratosis with or with -out squamous cell carcinoma of sun-exposed skin: a lesion simulating extramammary Paget's disease. Histopathology 2002; 41:331-336. 5. Ansai S. Mihara I. Sebac...

Journal: :Case reports in dermatology 2015
Kazutoshi Harada Yuichiro Kato Yukihiko Kato Ryoji Tsuboi

We herein report a case of hair follicle nevus, a rare hamartoma found on the face and showing follicular differentiation, which was associated with sebaceous hyperplasia. Dermoscopy of the lesion showed yellow globules surrounded by crown vessels/telangiectasias and scattered tiny hairs. Histopathological investigation revealed hyperplasia of the sebaceous glands and proliferation of well-diff...

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