{"id":17663,"date":"2025-04-22T12:19:32","date_gmt":"2025-04-22T12:19:32","guid":{"rendered":"https:\/\/www.diginerve.com\/blogs\/?p=17663"},"modified":"2025-05-13T09:28:25","modified_gmt":"2025-05-13T09:28:25","slug":"teratoma-causes-symptoms-diagnosis-treatment","status":"publish","type":"post","link":"https:\/\/www.diginerve.com\/blogs\/teratoma-causes-symptoms-diagnosis-treatment\/","title":{"rendered":"Teratoma: Causes, Symptoms, Types, Diagnosis &#038; Best Treatment Options"},"content":{"rendered":"<p><b>Teratomas<\/b><span style=\"font-weight: 400;\"> are a rare and biologically complex type of <\/span><b>germ cell tumor (GCT)<\/b><span style=\"font-weight: 400;\"> that can contain a variety of tissue types, such as hair, teeth, bone, and even neural tissue. These tumors are unique because they originate from <\/span><b>totipotent germ cells<\/b><span style=\"font-weight: 400;\">, which have the ability to differentiate into any cell type derived from the three germ layers: <\/span><b>ectoderm, mesoderm, and endoderm<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">While most commonly arising in the <\/span><b>gonads<\/b><span style=\"font-weight: 400;\"> (ovaries or testes), teratomas can occur in extragonadal sites like the <\/span><b>sacrococcygeal region<\/b><span style=\"font-weight: 400;\">, <\/span><b>mediastinum<\/b><span style=\"font-weight: 400;\">, and <\/span><b>brain<\/b><span style=\"font-weight: 400;\">. Teratomas may be <\/span><b>benign (mature)<\/b><span style=\"font-weight: 400;\"> or <\/span><b>malignant (immature)<\/b><span style=\"font-weight: 400;\">, with management strategies and prognosis varying accordingly.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This article is ideal for medical students revising for exams and patients looking to understand their diagnosis more clearly.<\/span><\/p>\n<p><b>Pathogenesis and Cause of Teratoma<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Teratomas result from <\/span><b>aberrant differentiation of germ cells<\/b><span style=\"font-weight: 400;\"> during embryonic development. These germ cells, which normally migrate to the gonadal ridge to form sperm or ova, may instead settle in ectopic locations or undergo faulty differentiation.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Key Points:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Germ cells are <\/span><b>totipotent<\/b><span style=\"font-weight: 400;\">, meaning they can give rise to any tissue type.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Errors in migration or differentiation<\/b><span style=\"font-weight: 400;\"> can lead to the development of a teratoma.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This is why teratomas may include <\/span><b>hair, skin, teeth, cartilage, muscle, or even neural tissue<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Types of Teratomas<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Teratomas are classified primarily by <\/span><b>maturity<\/b><span style=\"font-weight: 400;\"> and <\/span><b>malignancy potential<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<ol>\n<li><b> Mature Teratomas<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Well-differentiated tissues<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Usually <\/span><b>benign<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Most common type in <\/span><b>ovarian dermoid cysts<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">May <\/span><b>recur<\/b><span style=\"font-weight: 400;\"> after incomplete surgical excision<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Can be cystic, solid, or mixed<\/span><\/li>\n<\/ul>\n<ol start=\"2\">\n<li><b> Immature Teratomas<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Contain <\/span><b>poorly differentiated, embryonic tissues<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Higher risk of <\/span><b>malignancy<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Can include <\/span><b>somatic malignant components<\/b><span style=\"font-weight: 400;\"> such as <\/span><b>sarcoma<\/b><span style=\"font-weight: 400;\">, <\/span><b>carcinoma<\/b><span style=\"font-weight: 400;\">, or <\/span><b>leukemia<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Typically seen in <\/span><b>younger females<\/b><span style=\"font-weight: 400;\"> and <\/span><b>testicular tumors<\/b><\/li>\n<\/ul>\n<ol start=\"3\">\n<li><b> Special Forms<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Monodermal Teratomas<\/b><span style=\"font-weight: 400;\"> (e.g., <\/span><b>Struma Ovarii<\/b><span style=\"font-weight: 400;\">, composed predominantly of thyroid tissue)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Teratocarcinoma<\/b><span style=\"font-weight: 400;\"> (mixed with embryonal carcinoma, aggressive and malignant)<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Clinical Presentation: Symptoms by Location<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Symptoms depend on the <\/span><b>location, size, and type<\/b><span style=\"font-weight: 400;\"> of the teratoma. Many remain <\/span><b>asymptomatic<\/b><span style=\"font-weight: 400;\"> until they reach a size that compresses adjacent structures or cause complications like rupture or infection.<\/span><\/p>\n<ol>\n<li><b> Sacrococcygeal Teratoma (SCT)<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Most common tumor in newborns<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Arises near the <\/span><b>coccyx<\/b><span style=\"font-weight: 400;\"> (tailbone)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Can be external, internal, or mixed<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Symptoms may include:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Visible mass in the gluteal region<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Constipation<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Urinary retention<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Lower limb weakness<\/b><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol>\n<li><b> Ovarian Teratoma<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Often asymptomatic unless large<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When symptomatic:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Lower abdominal or pelvic pain<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Ovarian torsion \u2192 <\/span><b>acute abdomen<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">May cause <\/span><b>chemical peritonitis<\/b><span style=\"font-weight: 400;\"> if cyst contents leak<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rarely associated with <\/span><b>anti-NMDA receptor encephalitis<\/b><span style=\"font-weight: 400;\">:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Psychiatric symptoms<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Seizures<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Cognitive decline<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol>\n<li><b> Testicular Teratoma<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Common in males aged 15\u201335<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Presents as:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Painless scrotal mass<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Feeling of heaviness<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">May be part of <\/span><b>mixed germ cell tumor<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Metastasis<\/b><span style=\"font-weight: 400;\"> to retroperitoneal nodes if malignant<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Diagnosis of Teratoma<\/span><\/h2>\n<ol>\n<li><b> Clinical Examination<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inspection and palpation of masses<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Assessment of neurological symptoms (especially in SCT)<\/span><\/li>\n<\/ul>\n<ol start=\"2\">\n<li><b> Imaging Studies<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ultrasound<\/b><span style=\"font-weight: 400;\"> (first-line for ovarian\/testicular masses)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>MRI<\/b><span style=\"font-weight: 400;\"> or <\/span><b>CT Scan<\/b><span style=\"font-weight: 400;\"> (for detailed anatomic view, especially sacrococcygeal or mediastinal masses)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Prenatal Ultrasound<\/b><span style=\"font-weight: 400;\"> may detect SCT in utero<\/span><\/li>\n<\/ul>\n<ol start=\"3\">\n<li><b> Tumor Markers<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Alpha-Fetoprotein (AFP)<\/b><span style=\"font-weight: 400;\">: Elevated in immature\/malignant teratomas<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Beta-hCG<\/b><span style=\"font-weight: 400;\">: May be raised in mixed tumors<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>LDH<\/b><span style=\"font-weight: 400;\">: General tumor marker<\/span><\/li>\n<\/ul>\n<ol start=\"4\">\n<li><b> Histopathology<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Definitive diagnosis<\/b><span style=\"font-weight: 400;\"> via biopsy or surgical specimen<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Determines <\/span><b>maturity<\/b><span style=\"font-weight: 400;\"> and <\/span><b>presence of malignant transformation<\/b><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Treatment Approach: Based on Location and Type<\/span><\/h2>\n<p><b>General Principle:<\/b><\/p>\n<p><b>Surgical excision<\/b><span style=\"font-weight: 400;\"> is the mainstay for both benign and malignant teratomas. Chemotherapy is used in malignant or metastatic cases.<\/span><\/p>\n<ol>\n<li><b>Sacrococcygeal Teratoma (SCT)<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>In Utero<\/b><span style=\"font-weight: 400;\">:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Monitored via serial ultrasound<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Large SCTs may require <\/span><b>early delivery or fetal surgery<\/b><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Postnatally<\/b><span style=\"font-weight: 400;\">:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Complete <\/span><b>surgical resection including coccyx<\/b><span style=\"font-weight: 400;\"> (to prevent recurrence)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Chemotherapy<\/b><span style=\"font-weight: 400;\"> if malignancy is present<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Surveillance needed for 3 years due to recurrence risk<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"2\">\n<li><b> Ovarian Teratoma<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Mature Teratomas (Dermoid Cysts)<\/b><span style=\"font-weight: 400;\">:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Treated via <\/span><b>laparoscopic cystectomy<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Risk: Rupture during surgery \u2192 <\/span><b>chemical peritonitis<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Oophorectomy may be necessary if large or bilateral<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>25%<\/b><span style=\"font-weight: 400;\"> of cases have bilateral cysts<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Immature Teratomas<\/b><span style=\"font-weight: 400;\">:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Common in <\/span><b>girls and young women<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Requires <\/span><b>surgery + adjuvant chemotherapy<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Chemotherapeutic agents: <\/span><b>Bleomycin, Etoposide, Cisplatin (BEP)<\/b><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"3\">\n<li><b>Testicular Teratoma<\/b><\/li>\n<\/ol>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Radical inguinal orchiectomy<\/b><span style=\"font-weight: 400;\"> is the first-line treatment<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Prepubertal<\/b><span style=\"font-weight: 400;\"> teratomas are often benign<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Postpubertal<\/b><span style=\"font-weight: 400;\"> teratomas are considered <\/span><b>malignant<\/b><span style=\"font-weight: 400;\"> even if histologically mature<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">May need <\/span><b>retroperitoneal lymph node dissection (RPLND)<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Chemotherapy<\/b><span style=\"font-weight: 400;\"> used in case of non-teratomatous malignant elements<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fertility preservation discussions are important prior to treatment<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Prognosis<\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Mature teratomas<\/b><span style=\"font-weight: 400;\"> have an excellent prognosis with surgical removal<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Immature teratomas<\/b><span style=\"font-weight: 400;\"> have a favorable outlook with timely chemotherapy<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>SCTs<\/b><span style=\"font-weight: 400;\">, if diagnosed early and treated appropriately, have a &gt;90% survival rate<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Testicular teratomas<\/b><span style=\"font-weight: 400;\">, if malignant, require close monitoring due to metastasis risk<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Key Takeaways for Medical Students and Patients<\/span><\/h2>\n<table style=\"width: 58.3484%; height: 382px;\">\n<tbody>\n<tr>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><b>Aspect<\/b><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><b>Mature Teratoma<\/b><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><b>Immature Teratoma<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Malignancy<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Typically, benign<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Often malignant<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Common Age<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Adults (females)<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Children\/Young Adults<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Common Sites<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Ovaries, testes, SCT<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Ovaries, testes<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Treatment<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Surgical excision<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Surgery + Chemotherapy<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Prognosis<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Excellent with removal<\/span><\/td>\n<td style=\"text-align: center; border-style: solid; border-color: #000000;\"><span style=\"font-weight: 400;\">Good with prompt treatment<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Whether you&#8217;re a <\/span><b>student preparing for NEET-PG<\/b><span style=\"font-weight: 400;\"> or a <\/span><b>patient trying to understand your diagnosis<\/b><span style=\"font-weight: 400;\">, knowing the biology and treatment options of teratomas can be empowering.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Early diagnosis<\/b><span style=\"font-weight: 400;\"> through imaging and tumor markers is essential.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Histopathological analysis<\/b><span style=\"font-weight: 400;\"> is critical for determining malignancy.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Multidisciplinary care<\/b><span style=\"font-weight: 400;\">, including oncologists, surgeons, and radiologists, ensures the best outcomes.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-weight: 400;\">Frequently Asked Questions:\u00a0<\/span><\/h2>\n<ul>\n<li aria-level=\"1\"><b>What is the main cause of teratoma?<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Ans. The cause of most teratomas is\u00a0not completely understood. Teratomas are often associated with a number of inherited defects that affect the central nervous system, genitourinary tract, and lower spine.<\/span><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>What is the most common type of teratoma?<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Ans. The most common type among these tumors is\u00a0mature cystic teratoma, also known as &#8220;Dermoid cyst.&#8221; Cystic teratomas constitute about 20% of ovarian germ cell tumors. The most common site of occurrence is in the ovaries and testes.<\/span><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>Can a teratoma have a brain?<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Ans. These rare tumors have been known to contain hair, teeth, bone, eyes, torso tissue, hands or feet, or\u00a0tissue from the brain, thyroid, liver, or lungs.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Teratomas are a rare and biologically complex type of germ [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":17664,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[425],"tags":[652,653,651,654],"class_list":["post-17663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medicine-md","tag-germ-cell-tumor","tag-ovarian-teratoma","tag-teratoma","tag-testicular-teratoma"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Teratoma: Causes, Symptoms, Types, Diagnosis &amp; Best Treatment Options - Your Guide At Every Step to Become The Top Doctor<\/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:\/\/www.diginerve.com\/blogs\/teratoma-causes-symptoms-diagnosis-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Teratoma: Causes, Symptoms, Types, Diagnosis &amp; 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