Abstract：
:Cutaneous leiomyomata, which are benign smooth muscle neoplasms, commonly present as dermal-based nodules or papules with smooth borders and firm consistency. Digital, particularly subungual leiomyomata are quite rare. A 16-year-old female presented to nail clinic complaining of discoloration of the lunula of the left thumbnail for 2.5 months. On initial examination, a pink longitudinal band was present in the center of the nail plate, with yellow discoloration and distal onycholysis. The patient had only mild tenderness with firm palpation, and did not recall trauma of the area. A nail matrix biopsy was performed to determine the etiology of the lesion. Microscopic examination demonstrated a well-demarcated dermal-based spindle-cell fascicular proliferation. Bland cells exhibited eosinophilic cytoplasm and elongate nuclei with blunt ends and minimal cytologic atypia. Prominent nucleoli, mitoses or necrosis were not appreciated. Immunohistochemical stains for smooth muscle actin and caldesmon highlighted the cells. Contrarily, S-100, epithelial membrane antigen, p63, factor XIIIa, CD34, CD68 and p75 were all negative. Ki-67 showed a low proliferative index. The immunoprofile combined with the morphologic features were interpreted as subungual leiomyoma. Subungual leiomyoma is a very rare diagnosis. We seek to bring awareness and expedite the diagnosis in patients with this lesion.
journal_name
J Cutan Patholjournal_title
Journal of cutaneous pathologyauthors
Komforti M,Selim MA,Bellet JSdoi
10.1111/cup.12645subject
Has Abstractpub_date
2016-04-01 00:00:00pages
379-82issue
4eissn
0303-6987issn
1600-0560journal_volume
43pub_type
杂志文章abstract：:Traditionally, the pigmented purpuric eruptions (PPE) have been subdivided into four histologic categories, based upon variations in histologic pattern and clinical morphologies. In recent years, it has become apparent that the lesions behave similarly, and this family of eruptions has become grouped under the term PP...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1991.tb01378.x
更新日期：1991-12-01 00:00:00
abstract：:Dermatomyositis, a connective tissue disease syndrome where antibodies to the endothelium of the microvasculature of the skin, muscle and lung are implicated in lesional propagation, is characterized by photodistributed erythema, heliotrope rash, Gottron's papules, muscle weakness and interstitial pulmonary fibrosis. ...
journal_title：Journal of cutaneous pathology
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doi：10.1111/j.1600-0560.2007.00767.x
更新日期：2008-01-01 00:00:00
abstract：:We examined the proliferative characteristics of 20 basal-cell carcinomas (BCCs) and 16 trichoepitheliomas (TEps) in an effort to understand and explore possible differences in their tumorigenic cell-cycle properties. These tumors were first compared for their expression of the nuclear proliferative protein Ki-67 and ...
journal_title：Journal of cutaneous pathology
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doi：10.1111/j.0303-6987.2004.00230.x
更新日期：2004-09-01 00:00:00
abstract：BACKGROUND:The distinction between ocular sebaceous carcinoma, poorly differentiated ocular squamous cell carcinoma and ocular basal cell carcinoma can be challenging. An appropriate immunohistochemical panel may help to differentiate these lesions. METHODS:To determine the distribution and use of several immunostains...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2007.00871.x
更新日期：2008-07-01 00:00:00
abstract：BACKGROUND:The aim of this study was to evaluate the effectiveness of CD117 immunostaining for diagnosing cutaneous adnexal tumors, which has not been previously established. METHODS:CD117 immunostaining was performed on representative sections of 87 clinicopathologically confirmed cutaneous apocrine/eccrine tumors, 1...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/cup.12492
更新日期：2015-07-01 00:00:00
abstract：:Cell adhesion between surfaces of cells and to extracellular matrices represents a fundamental mechanism in tissue organization and influences the biological behaviour and the architecture of tumors. We investigated the expression of various adhesion molecules in normal skin (n=5), nevi (n=29), and malignant melanoma ...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1997.tb00792.x
更新日期：1997-05-01 00:00:00
abstract：:True human tails are rare vestigial structures that are typically removed in childhood. Here a case is presented in which an inconspicuous sacrococcygeal tail was incidentally discovered in late adulthood. A 56-year-old man with no significant past medical history presented to a dermatology clinic with a chief complai...
journal_title：Journal of cutaneous pathology
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doi：10.1111/cup.12820
更新日期：2017-01-01 00:00:00
abstract：:Acquired perforating calcific collagenosis (APCC), which is characterized by the calcification of dermal collagen fibers with subsequent transepidermal elimination and perforation, is an extremely rare entity. Thus far, it has only been reported in a patient with direct contact exposure to calcium chloride. Here, we r...
journal_title：Journal of cutaneous pathology
pub_type：
doi：10.1111/cup.13371
更新日期：2019-01-01 00:00:00
abstract：:Oral melanoacanthoma is a rarely-reported, benign pigmented lesion of oral mucosa. Spongiosis was only recently mentioned as a light-microscopical finding occasionally seen in oral melanoacanthoma, and the formation of spongiotic intraepithelial vesicles to our knowledge has never been reported. The authors discuss a ...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1989.tb00587.x
更新日期：1989-12-01 00:00:00
abstract：:Sinonasal non-keratinizing squamous cell carcinoma (SCC), previously designated as transitional cell carcinoma or cylindrical cell carcinoma, is an uncommon malignant neoplasm with distinct histopathological features, considered to be a low-grade malignancy that usually occurs in elderly patients. Extensive local inva...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2012.01939.x
更新日期：2012-08-01 00:00:00
abstract：BACKGROUND:Myxoid liposarcoma typically presents as a deep-seated mass in the lower extremity of adults. Presentation as a primary subcutaneous tumor is rare. Here we discuss clinicopathologic characteristics of three such cases and their differential diagnosis to alert dermatopathologists to this unusual clinical pres...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/cup.12428
更新日期：2014-12-01 00:00:00
abstract：:To explore the clinicopathological features of a rare dedifferentiated liposarcoma (DDLPS) with meningothelial-like whorls, we retrospectively analyzed 46 reported cases and 1 case that we encountered. Fluorescence in situ hybridization (FISH) analysis of the MDM2 amplification status of our case was also performed. O...
journal_title：Journal of cutaneous pathology
pub_type：
doi：10.1111/cup.13621
更新日期：2020-02-01 00:00:00
abstract：:Cutaneous mixed tumors (MTs), also known as chondroid syringomas, usually arise as small nodules in the head and neck region. We describe an unusual case of a giant MT measuring 9 cm in its greatest diameter, occurring as a slowly growing pedunculated mass on the breast of a 74-year-old woman. Although MT may rarely o...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2008.01104.x
更新日期：2009-06-01 00:00:00
abstract：BACKGROUND:Cutaneous lymphocyte-associated antigen (CLA) is expressed in resident cutaneous T lymphocytes, high endothelial venules, peripheral monocytes, granulocytes and a small percentage of memory B cells. It has been postulated to be an important factor in homing of lymphocytes to the skin because of its function ...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2007.00971.x
更新日期：2008-11-01 00:00:00
abstract：:The expression of cytokeratins in 10 cases of clear cell hidradenoma, including 3 cases of solid cystic hidradenoma, were examined using 21 kinds of monoclonal antibodies. We divided them into three histologic patterns: massive nests with a few lumina (M nests), nests with some tubular lumina (L nests), and nests in s...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1997.tb00782.x
更新日期：1997-01-01 00:00:00
abstract：:Mycosis fungoides in palmoplantar localization (MFPP) is a rare variant of MF that is confined to the hands and feet. Patients commonly receive treatment over many years for suspected palmoplantar dermatitis before the diagnosis is made. Most MFPP patients remain at patch or plaque stage, and often respond to treatmen...
journal_title：Journal of cutaneous pathology
pub_type：
doi：10.1111/cup.13140
更新日期：2018-06-01 00:00:00
abstract：:Malignant eccrine spiradenoma is an extremely rare skin tumor of sweat gland origin. In most cases, it arises in pre-existing benign eccrine spiradenoma. We report an additional case of malignant eccrine spiradenoma. The present case is of a 75-year-old man with malignant eccrine spiradenoma developed in the right sho...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2009.01320.x
更新日期：2010-04-01 00:00:00
abstract：BACKGROUND:De novo intraepidermal epithelioid melanocytic dysplasia (DNIEMD) is a newly characterized lesion that is associated with a personal and/or family history of malignant melanoma (MM) and/or dysplastic nevi (DN). However, the biological significance is still uncertain and the persons predisposed to this lesion...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2009.01429.x
更新日期：2010-08-01 00:00:00
abstract：:Immunohistochemical properties were studied in 16 lesions from 11 patients with chordoma involving the skin. There were nine men and two women ranging from 21 to 62 years old (mean, 42.6). The initial tumor was sacrococcygeal in 10 cases and nasopharyngeal in 1 case. Three lesions represented a direct extension from t...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1992.tb01599.x
更新日期：1992-12-01 00:00:00
abstract：:Fifteen halo nevi were stained for the presence of S100 protein by an unlabelled antibody peroxidase-antiperoxidase method. S100 protein was clearly identifiable within nevus cell nests in the inflammatory infiltrate. The presence of this substance helped to identify nevus cells in dense inflammatory infiltrates and c...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1985.tb00426.x
更新日期：1985-02-01 00:00:00
abstract：:Recent advances in the understanding of the metastatic phenomenon in cancer have led to the description of a metastatic niche. This concept describes a site prepared for the tumor cells in areas frequently associated with metastasis for the individual tumor studied. This niche is a "soil" that allows for the tumor cel...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2010.01521.x
更新日期：2010-04-01 00:00:00
abstract：:The dermatological disorders associated with monoclonal gammopathies are clinically heterogeneous and may be divided into four groups with distinctive pathogenetic mechanisms (a) specific (infiltrative) disorders including primary and secondary cutaneous plasmacytoma and cutaneous lymphoplasmacytic infiltration of Wal...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章,评审
doi：10.1111/j.1600-0560.2007.00884.x
更新日期：2008-08-01 00:00:00
abstract：:Genital leiomyoma in men include those superficial leiomyomas arising in the scrotum and the areola. They are unusual neoplasms: few cases have been reported in the literature and they usually escape clinical diagnosis. Three cases of male genital leiomyomas are reported: two in the scrotum and one in the areola. They...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2007.00754.x
更新日期：2007-12-01 00:00:00
abstract：BACKGROUND:Fatty acid synthase (FAS), the key enzyme responsible for the synthesis of fatty acids, is weakly expressed in some normal human tissues. Recently, FAS has been demonstrated to be overexpressed in many non-neoplastic highly proliferative lesions and in aggressive carcinomas with poor outcome, including colon...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1034/j.1600-0560.2003.300104.x
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Ulceration and osteoclast-like giant cells are two pathological features uncommonly seen in dermatofibromas. To our knowledge, the presence of these features has not been previously described within the same lesion. METHODS:We report the clinical, histopathological and immunohistochemical findings of a 38-y...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2009.01195.x
更新日期：2009-10-01 00:00:00
abstract：:Oral mucosal melanoma (OMM) is an extremely rare malignancy, accounting for < 0.5% of all melanomas and all oral malignancies. The rarity of OMM, the heterogeneity in clinical and histopathologic appearances, and the paucity of molecular and genetic studies to date have limited our knowledge of the etiopathogenesis of...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.2007.00830.x
更新日期：2008-04-01 00:00:00
abstract：:The authors have observed 15 examples of a distinctive fibrohistiocytic lesion in children and adolescents which they chose to designate as "atypical fibrous histiocytoma" (AFH). Patient ages ranged from 1 to 19 years (mean 9.3 yr.). Only two cases were encountered in the first year of life, but 7 were seen in childre...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/j.1600-0560.1992.tb01362.x
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abstract：:Neutrophilic panniculitis is an infrequent entity, considered by most authors as part of the 'neutrophilic dermatosis' spectrum. Few cases have been reported to be related with granulocyte colony-stimulating factor (G-CSF); we report a case of neutrophilic panniculitis and Sweet's syndrome lesions related with pegfilg...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/cup.12042
更新日期：2013-01-01 00:00:00
abstract：BACKGROUND:Transepithelial elimination is a process by which dermal materials are expelled through an active epithelial-dermal connective tissue interaction. It has been described as a regular or sporadic occurrence in a variety of dermatologic conditions, including sarcoidosis. OBSERVATION:Our patient demonstrated a ...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1111/cup.12253
更新日期：2014-01-01 00:00:00
abstract：INTRODUCTION:The atypical fibroxanthoma (AFX) is considered by most authorities to represent a superficial or minimally invasive variant of malignant fibrous histiocytoma that most often presents as a solitary nodule on the sun-exposed skin of the elderly. Among the rarest variants is the clear cell AFX, a lesion which...
journal_title：Journal of cutaneous pathology
pub_type： 杂志文章
doi：10.1034/j.1600-0560.2002.290609.x
更新日期：2002-07-01 00:00:00
