{"id":5842,"date":"2020-11-12T22:02:41","date_gmt":"2020-11-12T22:02:41","guid":{"rendered":"https:\/\/dermatly.com\/carcinoma-sebaceo\/"},"modified":"2026-03-15T11:25:20","modified_gmt":"2026-03-15T11:25:20","slug":"sebaceous-carcinoma","status":"publish","type":"glossary","link":"https:\/\/dermatly.com\/en\/carcinoma-sebaceo\/","title":{"rendered":"Sebaceous Carcinoma"},"content":{"rendered":"<section class=\"textBlock\">\n<div class=\"cmsBlock\">\n<div class=\"cmsBlock__shortcode\"><\/div>\n<div class=\"cmsBlock__title\"><\/div>\n<\/div>\n<h1>What is a Sebaceous Gland and What is Its Function?<\/h1>\n<p>The <span class=\"term\" data-term-id=\"2251\">sebaceous glands<\/span> are microscopic structures intimately connected to the <span class=\"term\" data-term-id=\"1301\">follicles<\/span> <span class=\"term\" data-term-id=\"122\">follicles.<\/span> distributed throughout most of the hairy skin of the body. These organs are particularly dense on the scalp and the facial area. Their primary function is the secretion of <span class=\"term\" data-term-id=\"898\">sebum<\/span>, a vital lipid substance that ensures lubrication and maintains the natural elasticity of both hair and epidermis.<\/p>\n<h2>Definition and Aggressiveness of Sebaceous Carcinoma<\/h2>\n<p>Sebaceous carcinoma constitutes a rare cutaneous neoplastic entity, but one that is notably aggressive in its biological behavior. In terminology, this condition may be referenced as sebaceous gland adenocarcinoma, often conceptually linked to the sebaceous structure or the associated gland. <span class=\"term\" data-term-id=\"2250\">sebaceous gland<\/span>, often conceptually linked to the sebaceous structure <span class=\"term\" data-term-id=\"262\">sebaceous<\/span> bacterial resistance <span class=\"term\" data-term-id=\"2388\">salivary<\/span> structure.<\/p>\n<div id=\"square-placement-country-holder\" class=\"country-dependent advert\"><!-- Advertisement Box Placeholder --><\/div>\n<h2>Demographic Profile: Who Does Sebaceous Carcinoma Affect?<\/h2>\n<p>Generally, sebaceous carcinomas, especially when located in the ocular region <span class=\"term\" data-term-id=\"981\">ocular<\/span>, predominantly impact individuals in advanced stages of adult life. Statistics indicate a slightly higher prevalence among Asian populations compared to Caucasians, and there is a slight inclination toward female involvement, most commonly affecting people between 60 and 80 years old. However, appearance at earlier ages is often associated with the presence of certain <span class=\"term\" data-term-id=\"350\">syndromes<\/span> <span class=\"term\" data-term-id=\"558\">disorders<\/span> underlying.<\/p>\n<p>On the other hand, when sebaceous carcinoma manifests outside the ocular region (extraocular), it tends to present in older adults without showing a clear difference in incidence between genders.<\/p>\n<h3>Identifying Risk Factors That Predispose to Sebaceous Carcinoma<\/h3>\n<p>Although the fundamental cause of sebaceous carcinoma development is not fully understood, research has identified several factors that increase the probability of suffering from these tumors:<\/p>\n<ul>\n<li>Existence of <span class=\"term\" data-term-id=\"350\">Sj\u00f6gren's<\/span> Muir-Torre syndrome or the concomitant presence of Lynch disease.<\/li>\n<li>History of having received <span class=\"term\" data-term-id=\"1326\">radiotherapy<\/span> in the affected area to treat primary pathologies, whether <span class=\"term\" data-term-id=\"22\">benign<\/span> o <span class=\"term\" data-term-id=\"176\">and even<\/span>, such as the case of retinoblastoma.<\/li>\n<li>Report of chronic and systemic use of thiazide-type diuretic medications.<\/li>\n<li>Documented presence of <span class=\"term\" data-term-id=\"871\">mutations<\/span> in the <span class=\"term\" data-term-id=\"774\">gene<\/span> p53, which acts as a tumor suppressor. <span class=\"term\" data-term-id=\"289\">tumors<\/span>.<\/li>\n<li>Acquired or chronic immunosuppression conditions in the patient.<\/li>\n<\/ul>\n<h3>Typical Clinical Manifestations of Sebaceous Carcinoma<\/h3>\n<p>The most frequent location for sebaceous carcinoma is the Meibomian glands, located mainly in the upper eyelids, although they are equally found in the lower ones. Clinical signs indicative of ocular sebaceous carcinoma include: <span class=\"term\" data-term-id=\"981\">ocular<\/span> odor include:<\/p>\n<ul>\n<li>Development of a <span class=\"term\" data-term-id=\"198\">nodule<\/span> that feels firm, with a color ranging between <span class=\"term\" data-term-id=\"967\">lesions...<\/span> (reddish) or slightly yellowish, generally embedded deep in the upper eyelid and characterized by slow growth.<\/li>\n<li>The <span class=\"term\" data-term-id=\"2115\">lesions<\/span> Lesions detected in the upper eyelid have an incidence probability 2 to 3 times higher than those located in the lower eyelid.<\/li>\n<li>In many cases, the initial symptomology is nonspecific.<\/li>\n<\/ul>\n<p>It is crucial to emphasize that early detection of these lesions is fundamental to improving the prognosis for patients affected by sebaceous carcinoma, a type of skin cancer that requires specialized attention.<\/p>\n<\/section>\n<section>\n<ul>\n<li>This <span class=\"term\" data-term-id=\"164\">. The cherry angioma is histologically distinguished by being composed of<\/span> This similar lesion is frequently misdiagnosed initially as a chalazion (the result of a <span class=\"term\" data-term-id=\"148\">inflammation<\/span> benign inflammation of the Meibomian gland).<\/li>\n<li>With the progression of the carcinoma, it can spread to the <span class=\"term\" data-term-id=\"574\">conjunctiva<\/span>, which can lead to confusion with keratoconjunctivitis or <span class=\"term\" data-term-id=\"1092\">blepharoconjunctivitis<\/span>.<\/li>\n<li>In advanced stages, the involvement can affect both eyelids (upper and lower), manifesting with loss of eyelashes (<span class=\"term\" data-term-id=\"175\">madarosis<\/span>), <span class=\"term\" data-term-id=\"1278\">ulceration<\/span> and even visual impairment.<\/li>\n<li>Delay in diagnosis or undetected cases are associated with a potential risk of <span class=\"term\" data-term-id=\"383\">Benefits of Germline Genetic Testing for Melanoma<\/span> (spread to other body areas).<\/li>\n<\/ul>\n<p>Accurately understanding these clinical characteristics is fundamental to distinguishing sebaceous carcinoma from more frequent and benign eyelid conditions, thus ensuring that patients receive the necessary oncological care in a timely manner.<\/p>\n<\/section>\n<ul>\n<li><span class=\"term\" data-term-id=\"1775\">Lymph nodes<\/span> and <span class=\"term\" data-term-id=\"2123\">lymph<\/span> A biopsy <span class=\"term\" data-term-id=\"1777\">parotid glands<\/span>.<\/li>\n<\/ul>\n<figure><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-ca-1__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Illustrative representation of a sebaceous carcinoma located in the ocular area.\" \/><figcaption>Ocular Sebaceous Carcinoma<\/figcaption><\/figure>\n<p>Sebaceous carcinoma manifesting outside the ocular orbit accounts for about 25% of all cases of this type of carcinoma. These neoplasms tend to be mainly located in the craniofacial region. However, they can be found in other body areas, including the genital region, the ear canal, the breasts, the trunk, and the oral cavity.<\/p>\n<p>The clinical presentation of lesions located outside the eye lacks specificity. They usually appear as a nodule with a color ranging from pinkish to yellowish-red, presenting variable dimensions.<\/p>\n<section class=\"textBlock imageLinkBlockTitle\">\n<h2 class=\"colour--primary\">Diagnosis and Distinctive Characteristics of Extraocular Sebaceous Carcinoma<\/h2>\n<\/section>\n<section class=\"imageLinkBlock\">\n<div class=\"flex\">\n<figure class=\"imageLinkBlock__item__image\"><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-ca-1__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Visual example of a sebaceous carcinoma on a skin surface.\" \/><figcaption class=\"p-small\">Sebaceous Carcinoma<\/figcaption><\/figure>\n<figure class=\"imageLinkBlock__item__image\"><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-ca-2__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Image showing the detailed macroscopic appearance of a sebaceous carcinoma tumor.\" \/><figcaption class=\"p-small\">Sebaceous Carcinoma<\/figcaption><\/figure>\n<figure class=\"imageLinkBlock__item__image\"><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-ca-3__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Photograph of an illustrative clinical case of sebaceous carcinoma.\" \/><figcaption class=\"p-small\">Sebaceous Carcinoma<\/figcaption><\/figure>\n<\/div>\n<\/section>\n<div class=\"clearfix imageLinkBlock\"><\/div>\n<h2>Procedures for the Diagnosis of Sebaceous Carcinoma<\/h2>\n<p>The diagnostic suspicion of sebaceous carcinoma is established through clinical evaluation. <span class=\"term\" data-term-id=\"2031\">A positive result could indicate that the patient requires periodic exams for other types of cancer. For example, a patient with a mutation in the<\/span> allows for the identification of distinctive irregular yellowish lobes, as well as <span class=\"term\" data-term-id=\"321\">linear<\/span> <span class=\"term\" data-term-id=\"953\">vascular<\/span> <span class=\"term\" data-term-id=\"953\">linear<\/span> patterns.<\/p>\n<p>The definitive diagnosis is confirmed by correlating the patient's clinical history, a <span class=\"term\" data-term-id=\"24\">biopsy<\/span> biopsy obtained after adequate surgical excision, and expert collaboration between a <span class=\"term\" data-term-id=\"808\">pathologist<\/span>, a <span class=\"term\" data-term-id=\"980\">ophthalmologist<\/span> and an <span class=\"term\" data-term-id=\"54\">dermatologist<\/span> specialist.<\/p>\n<p>To determine if there is a possibility of an underlying genetic syndrome, specific stains can be applied using immunohistochemical techniques. <span class=\"term\" data-term-id=\"1421\">immunohistochemistry<\/span>.<\/p>\n<section class=\"textBlock imageLinkBlockTitle\">\n<h2 class=\"colour--primary\">Value of Dermoscopy in Identifying Sebaceous Carcinoma<\/h2>\n<\/section>\n<section class=\"imageLinkBlock\">\n<div class=\"flex\">\n<figure class=\"imageLinkBlock__item__image\"><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-carcinoma-01__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.JPG\" alt=\"Detailed clinical view of a skin lesion highly suspicious of being a sebaceous carcinoma.\" \/><\/p>\n<figure class=\"imageLinkBlock__item__image\"><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-carcinoma-02__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.JPG\" alt=\"Clinical view of an eyelid lesion, possibly sebaceous carcinoma.\" \/><figcaption class=\"p-small\">Clinical view<\/figcaption><\/figure>\n<figure class=\"imageLinkBlock__item__image\"><img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/sebaceous-carcinoma-02__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.JPG\" alt=\"Dermoscopic image showing the characteristics of sebaceous carcinoma.\" \/><figcaption class=\"p-small\">Dermoscopy view<\/figcaption><\/figure>\n<\/figure>\n<\/div>\n<\/section>\n<div class=\"clearfix imageLinkBlock\"><\/div>\n<div id=\"square-placement-country-holder\" class=\"country-dependent advert\"><\/div>\n<h2>Challenges in the Differential Diagnosis of Sebaceous Carcinoma<\/h2>\n<p>The diagnosis of ocular sebaceous carcinoma often suffers significant delays, which can extend from months up to several years (the average delay between the onset of symptoms and definitive diagnosis ranges between 1 and 3 years). This difficulty arises because the condition often mimics a variety of other conditions, including inflammatory diseases <span class=\"term\" data-term-id=\"490\">inflammatory<\/span>, autoimmune <span class=\"term\" data-term-id=\"691\">are evaluated in patients with suspected connective tissue or autoimmune disease.<\/span>, infectious processes, and other types of malignant tumors.<\/p>\n<p>It is crucial to keep in mind that <span class=\"term\" data-term-id=\"831\">cell<\/span> basal cell carcinoma constitutes one of the main pathologies to rule out in the ocular differential diagnosis.<\/p>\n<p>While it is generally less aggressive than sebaceous carcinoma, it can sometimes present a certain degree of <span class=\"term\" data-term-id=\"1307\">differentiation<\/span> sebaceous differentiation that complicates the initial distinction.<\/p>\n<h2>Common Conditions That Can Mimic Ocular Sebaceous Carcinoma<\/h2>\n<ul>\n<li>Chalazion<\/li>\n<li>Stye<\/li>\n<li>Keratoconjunctivitis<\/li>\n<li>Blepharoconjunctivitis or blepharitis<\/li>\n<li><span class=\"term\" data-term-id=\"1898\">Conjunctivitis<\/span> Papillary conjunctivitis<\/li>\n<li><span class=\"term\" data-term-id=\"254\">Granuloma<\/span> <span class=\"term\" data-term-id=\"113\">differential diagnosis<\/span> \/ <span class=\"term\" data-term-id=\"360\">hemangioma<\/span> reagent<\/li>\n<li>Ocular cicatricial pemphigoid<\/li>\n<li>Sarcoidosis<\/li>\n<li>Inflammation <span class=\"term\" data-term-id=\"1076\">granulomatous<\/span> Granulomatous inflammation secondary to syphilis or tuberculosis (TB)<\/li>\n<li>Exophthalmos, particularly that associated with Graves' disease<\/li>\n<li>Occlusion of the <span class=\"term\" data-term-id=\"1964\">of a<\/span> central retinal artery, resulting in proptosis<\/li>\n<li>Torre-Muir Syndrome<\/li>\n<\/ul>\n<h2>Other Eyelid Tumors Required for Differentiation<\/h2>\n<ul>\n<li>Basal Cell Carcinoma<\/li>\n<li>Basal cell carcinoma <span class=\"term\" data-term-id=\"270\">cells<\/span><\/li>\n<li><span class=\"term\" data-term-id=\"47\">Cutaneous horn<\/span> <span class=\"term\" data-term-id=\"130\">cutaneous<\/span><\/li>\n<li>Conjunctival carcinoma<\/li>\n<li>Merkel cell <span class=\"term\" data-term-id=\"2143\">basal<\/span> Merkel cell<\/li>\n<li>Benign tumors of the <span class=\"term\" data-term-id=\"1300\">follicle<\/span> hair follicle, including <span class=\"term\" data-term-id=\"136\">hyperplasia<\/span> sebaceous hyperplasia and <span class=\"term\" data-term-id=\"597\">adenoma<\/span> carcinoma.<\/li>\n<li>Benign lesions originating in the sweat glands<\/li>\n<li>Metastatic tumors <span class=\"term\" data-term-id=\"1000\">abscesses<\/span><\/li>\n<\/ul>\n<h1>Serious Consequences Associated with Sebaceous Carcinoma<\/h1>\n<p>Despite being classified as a rare neoplasm, sebaceous carcinoma presents a considerable aggressiveness profile, with the capacity to generate high <span class=\"term\" data-term-id=\"186\">morbidity<\/span> morbidity <span class=\"term\" data-term-id=\"2150\">mortality<\/span>. and mortality potential. The overall mortality rate for this condition is estimated to be between 5% and 10%, a risk influenced by both the inherent characteristics of the tumor and any <span class=\"term\" data-term-id=\"2134\">delay<\/span> in diagnosis and treatment implementation.<\/p>\n<p>The **prognosis** deteriorates substantially if more than six months elapse before diagnosis is obtained, if the tumor size exceeds 1 cm in diameter, or if there is combined involvement of the upper and lower eyelids. These parameters are determining factors in the patient's clinical evolution.<\/p>\n<h2>Treatment Options for Sebaceous Carcinoma<\/h2>\n<p>The main therapeutic approach with the greatest proven efficacy is <strong>radical surgical excision<\/strong> (excision)<span class=\"term\" data-term-id=\"848\">excision<\/span>, which must be rigorously monitored at the margins via frozen section control (control)<span class=\"term\" data-term-id=\"1854\">control<\/span>, or preferably, through Mohs micrographic surgery, considered the current gold standard. However, it is important to consider that about 30% of sebaceous carcinomas may experience <span class=\"term\" data-term-id=\"2236\">recurrence<\/span> recurrence <span class=\"term\" data-term-id=\"897\">after initial<\/span> resection.<\/p>\n<p>Radiotherapy is strictly reserved for those patients who are not suitable candidates or prefer to avoid surgical procedures. Accurate diagnostic and therapeutic management of sebaceous carcinoma is fundamental to minimizing its severe associated complications.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u00bfQu\u00e9 es una Gl\u00e1ndula Seb\u00e1cea y Cu\u00e1l es su Funci\u00f3n? Las gl\u00e1ndulas seb\u00e1ceas son estructuras microsc\u00f3picas intimamente conectadas a los fol\u00edculos pilosos distribuidos por la mayor parte de la piel corporal que presenta vello. Estos \u00f3rganos son particularmente densos en el cuero cabelludo y la zona facial. Su funci\u00f3n primordial es la secreci\u00f3n de sebo, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":409,"parent":0,"template":"","glossary-cat":[],"class_list":["post-5842","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Carcinoma seb\u00e1ceo - Dermatly.com - El sitio de tu piel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dermatly.com\/en\/sebaceous-carcinoma\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Carcinoma seb\u00e1ceo\" \/>\n<meta property=\"og:description\" content=\"\u00bfQu\u00e9 es una Gl\u00e1ndula Seb\u00e1cea y Cu\u00e1l es su Funci\u00f3n? 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