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<meta name="robots" content="INDEX,FOLLOW,NOARCHIVE" /><meta name="citation_inbook_title" content="StatPearls [Internet]" /><meta name="citation_title" content="Amatoxin Mushroom Toxicity" /><meta name="citation_publisher" content="StatPearls Publishing" /><meta name="citation_date" content="2023/06/26" /><meta name="citation_author" content="B. Zane Horowitz" /><meta name="citation_author" content="Michael J. Moss" /><meta name="citation_pmid" content="28613706" /><meta name="citation_fulltext_html_url" content="https://www.ncbi.nlm.nih.gov/books/NBK431052/" /><link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" /><meta name="DC.Title" content="Amatoxin Mushroom Toxicity" /><meta name="DC.Type" content="Text" /><meta name="DC.Publisher" content="StatPearls Publishing" /><meta name="DC.Contributor" content="B. Zane Horowitz" /><meta name="DC.Contributor" content="Michael J. Moss" /><meta name="DC.Date" content="2023/06/26" /><meta name="DC.Identifier" content="https://www.ncbi.nlm.nih.gov/books/NBK431052/" /><meta name="description" content="Amatoxin containing mushrooms are a rare but significant cause of acute fulminant liver failure. However, not all Amanita species have this toxin, and other mushroom species besides Amanita have the amatoxin. (Table) Ninety-five percent of deaths from mushroom ingestions worldwide are from amatoxin-containing mushrooms.[1][2][3]" /><meta name="og:title" content="Amatoxin Mushroom Toxicity" /><meta name="og:type" content="book" /><meta name="og:description" content="Amatoxin containing mushrooms are a rare but significant cause of acute fulminant liver failure. However, not all Amanita species have this toxin, and other mushroom species besides Amanita have the amatoxin. (Table) Ninety-five percent of deaths from mushroom ingestions worldwide are from amatoxin-containing mushrooms.[1][2][3]" /><meta name="og:url" content="https://www.ncbi.nlm.nih.gov/books/NBK431052/" /><meta name="og:site_name" content="NCBI Bookshelf" /><meta name="og:image" content="https://www.ncbi.nlm.nih.gov/corehtml/pmc/pmcgifs/bookshelf/thumbs/th-statpearls-lrg.png" /><meta name="twitter:card" content="summary" /><meta name="twitter:site" content="@ncbibooks" /><meta name="bk-non-canon-loc" content="/books/n/statpearls/article-30396/" /><link rel="canonical" href="https://www.ncbi.nlm.nih.gov/books/NBK431052/" /><link rel="stylesheet" href="/corehtml/pmc/css/figpopup.css" type="text/css" media="screen" /><link rel="stylesheet" href="/corehtml/pmc/css/bookshelf/2.26/css/books.min.css" type="text/css" /><link rel="stylesheet" href="/corehtml/pmc/css/bookshelf/2.26/css/books_print.min.css" type="text/css" /><style type="text/css">p a.figpopup{display:inline !important} .bk_tt {font-family: monospace} .first-line-outdent .bk_ref {display: inline} </style><script type="text/javascript" src="/corehtml/pmc/js/jquery.hoverIntent.min.js"> </script><script type="text/javascript" src="/corehtml/pmc/js/common.min.js?_=3.18"> </script><script type="text/javascript">window.name="mainwindow";</script><script type="text/javascript" src="/corehtml/pmc/js/bookshelf/2.26/book-toc.min.js"> </script><script type="text/javascript" src="/corehtml/pmc/js/bookshelf/2.26/books.min.js"> </script>
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<div class="pre-content"><div><div class="bk_prnt"><p class="small">NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.</p><p>StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. </p></div></div></div>
<div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><h1 id="_NBK431052_"><span class="title" itemprop="name">Amatoxin Mushroom Toxicity</span></h1><p class="contrib-group"><h4>Authors</h4><span itemprop="author">B. Zane Horowitz</span><sup>1</sup>; <span itemprop="author">Michael J. Moss</span>.</p><h4>Affiliations</h4><div class="affiliation"><sup>1</sup> Oregon Health Science University</div><p class="small">Last Update: <span itemprop="dateModified">June 26, 2023</span>.</p></div><div class="body-content whole_rhythm" itemprop="text"><div id="article-30396.s1"><h2 id="_article-30396_s1_">Continuing Education Activity</h2><p>Amatoxin containing mushrooms are a rare but significant cause of acute fulminant liver failure. However, not all Amanita species have this toxin, and other mushroom species besides Amanita have the amatoxin. (Table) Ninety-five percent of deaths from mushroom ingestions worldwide are from amatoxin-containing mushrooms. This activity highlights the pathophysiology, presentation, and diagnosis of amatoxin mushroom toxicity and highlights the role of the interprofessional team in the management of these patients.</p><p>
<b>Objectives:</b>
<ul><li class="half_rhythm"><div>Identify the etiology of amatoxin mushroom poisoning.</div></li><li class="half_rhythm"><div>Describe the clinical presentation of a patient having amatoxin mushroom poisoning.</div></li><li class="half_rhythm"><div>Illustrate the treatment and management options available for amatoxin mushroom poisoning.</div></li><li class="half_rhythm"><div>Discuss interprofessional team strategies for improving care and outcomes in patients with amatoxin mushroom poisoning.</div></li></ul>
<a href="https://www.statpearls.com/account/trialuserreg/?articleid=30396&#x00026;utm_source=pubmed&#x00026;utm_campaign=reviews&#x00026;utm_content=30396" ref="pagearea=body&amp;targetsite=external&amp;targetcat=link&amp;targettype=uri">Access free multiple choice questions on this topic.</a>
</p></div><div id="article-30396.s2"><h2 id="_article-30396_s2_">Introduction</h2><p>Amatoxin containing mushrooms are a rare but significant cause of acute fulminant liver failure. However, not all Amanita species have this toxin, and other mushroom species besides Amanita have the amatoxin. (Table) Ninety-five percent of deaths from mushroom ingestions worldwide are from amatoxin-containing mushrooms.<a class="bk_pop" href="#article-30396.r1">[1]</a><a class="bk_pop" href="#article-30396.r2">[2]</a><a class="bk_pop" href="#article-30396.r3">[3]</a></p><p>
<b>Amatoxin containing mushroom species</b>
</p><p>
<b>Amanita group:</b>
</p><ul><li class="half_rhythm"><div><i>Amanita phalloides</i> (Death Cap)</div></li><li class="half_rhythm"><div><i>Amanita virosa</i>&#x000a0; (Destroying Angel)</div></li><li class="half_rhythm"><div><i>Amanita verna</i> (Fool&#x02019;s Mushroom)</div></li><li class="half_rhythm"><div>
<i>Amanita ocreata</i>
</div></li><li class="half_rhythm"><div>
<i>Amanita bisporigera</i>
</div></li><li class="half_rhythm"><div>
<i>Amanita suballiacea</i>
</div></li></ul><p>
<b>Lepiota group:</b>&#x000a0;</p><ul><li class="half_rhythm"><div>
<i>Lepiota helveola</i>
</div></li><li class="half_rhythm"><div>
<i>Lepiota chlorophyllum</i>
</div></li><li class="half_rhythm"><div>
<i>Lepiota brunneolilacea</i>
</div></li><li class="half_rhythm"><div>
<i>Lepiota josserandi</i>
</div></li><li class="half_rhythm"><div>
<i>Lepiota fulvella</i>
</div></li><li class="half_rhythm"><div>
<i>Lepiota subincarnata</i>
</div></li><li class="half_rhythm"><div>
<i>Lepiota brunneoincarnata</i>
</div></li></ul><p>
<b>Miscellaneous:</b>
</p><ul><li class="half_rhythm"><div><i>Galerina autumnalis </i>(Autumn skullcap)</div></li><li class="half_rhythm"><div>
<i>Galerina venenata</i>
</div></li><li class="half_rhythm"><div>
<i>Galerina sulcipes</i>
</div></li><li class="half_rhythm"><div>
<i>Conocybe filaris</i>
</div></li></ul><p>Certain mushrooms frequently are mistaken for an edible mushroom when people are foraging. <i>Amanita phalloides</i> (Death cap), the species associated with the most fatalities, often are mistaken for the paddy straw mushroom.</p><p>Both <i>Agaricus volvacea</i>, and <i>Amanita bisporigera</i> may be mistaken for edible, non-toxic <i>Lepiota naucina</i>.</p></div><div id="article-30396.s3"><h2 id="_article-30396_s3_">Etiology</h2><p>There are thousands of species of mushroom, but only about 50 to 100 of these are toxic to humans. The Amanita species are responsible for the majority of mushroom toxicity cases in humans. The Amanita mushrooms contain both amatoxins and phallotoxins. The amatoxins interfere with protein synthesis and cause liver failure.</p><p>Other Amanita species such as <i>Amanita smithiana</i> contain a renal toxin, and <i>Amanita muscaria</i> and <i>Amanita pantherina</i> have isoxazole toxins, causing alterations in mental status but no liver or renal injury.</p></div><div id="article-30396.s4"><h2 id="_article-30396_s4_">Epidemiology</h2><p>Amanita poisoning occurs because most people are not able to tell which mushrooms species are safe for consumption when foraging. Also, certain people seek psychotropic mushrooms to get a &#x0201c;high&#x0201d; but mistakenly ingest amanita mushrooms. Amanita mushrooms have no distinct taste or odor but are large (5 cm to 15 cm) and often indistinguishable in color or appearance from edible species.<a class="bk_pop" href="#article-30396.r3">[3]</a></p></div><div id="article-30396.s5"><h2 id="_article-30396_s5_">Pathophysiology</h2><p>The amanitin toxin is heat stable, remaining toxic whether eaten raw or cooked. The mechanism of action of amatoxin is by inhibiting RNA polymerase, causing disruption of transcription of mRNA. As a result, hepatocytes cannot synthesize key protein coding genes, leading to the disintegration of nucleoli and pathologically centrilobular hepatic necrosis. This leads to the insidious onset of liver failure over 48 hours. Late onset (more than six hours after ingestion)&#x000a0;of vomiting and watery diarrhea occur due to the second component in some of these mushrooms which are phallotoxin. Lepiota species lack phallotoxins so may not have the onset of vomiting and diarrhea until after 12 hours post-ingestion, or may just present with symptoms of liver failure at 24 hours post ingestion.<a class="bk_pop" href="#article-30396.r4">[4]</a></p></div><div id="article-30396.s6"><h2 id="_article-30396_s6_">Toxicokinetics</h2><p>Amatoxins are rapidly absorbed from the intestine and transported into the liver by OATP transporters. Once in the hepatocyte they start to&#x000a0;inhibit RNA polymerase. It takes about 24 hours before any signs or laboratory indicators of liver injury begin to&#x000a0;appear.</p></div><div id="article-30396.s7"><h2 id="_article-30396_s7_">History and Physical</h2><p>The course of Amanita toxicity has three phases:</p><ol><li class="half_rhythm"><div>The first stage does not begin until six to 12 hours after ingestion; often foragers comment on how good the food made from Amanita species tastes, and there are no signs of a problem for at least 6 hours. After this silent phase, it is followed by the onset of nausea, abdominal cramps, profuse watery diarrhea, and signs of dehydration. A physical exam may reveal dry mucosal membranes and tachycardia, and given sufficient dehydration, hypotension.</div></li><li class="half_rhythm"><div>After the GI phase, the second stage appears where the patient appears to recover transiently, and GI symptoms resolve, but ongoing liver damage continues. This stage may last two to three days and is characterized by rising liver function transaminase, bilirubin, the development of coagulopathy, and eventually hepatic encephalopathy.</div></li><li class="half_rhythm"><div>In the third stage, both liver and renal function become compromised. Hepato-renal syndrome and hepatic encephalopathy may occur rapidly after laboratory signs of liver injury, and death can occur in three to seven days.</div></li></ol></div><div id="article-30396.s8"><h2 id="_article-30396_s8_">Evaluation</h2><p>All ingestions of suspected liver-toxic mushrooms should have a complete chemistry panel to include liver function tests and a baseline INR.<a class="bk_pop" href="#article-30396.r5">[5]</a></p></div><div id="article-30396.s9"><h2 id="_article-30396_s9_">Treatment / Management</h2><p>The treatment of Amatoxin mushroom toxicity is predominately supportive care. There is no specific antidote. The patient must have two large bore IVs and fluid loss, electrolyte deficiency, and glucose should be normalized. If the patient presents early (within two to four hours,) decontamination with oral activated charcoal may&#x000a0;be performed. Once the stomach is empty, nausea should&#x000a0;be treated&#x000a0;if needed.<a class="bk_pop" href="#article-30396.r1">[1]</a><a class="bk_pop" href="#article-30396.r2">[2]</a></p><p>Several agents have been used and have anecdotal support in the literature:</p><ol><li class="half_rhythm"><div><b>N-acetyl-cysteine:</b> Used intravenously (IV) as per acetaminophen poisoning to treat potential liver injury, and provide glutathione.</div></li><li class="half_rhythm"><div><b>Penicillin:</b> High dose IV&#x000a0; (four million units every four&#x000a0;hours) is thought to compete with the liver uptake of the amatoxin.</div></li><li class="half_rhythm"><div><b>Silymarin:</b> Both the pharmaceutical form available in Europe as an intravenous formulation and the over the counter raw milk thistle extract used in North America have been used in a majority of cases in the literature. Its mechanism of action is felt to be an OAT-P transporter inhibitor that slows the entry of amatoxin into the liver. Doses are 1 gm orally four times daily, or its purified alkaloid silibinin intravenously&#x000a0; 5 mg/kg IV over one&#x000a0;hour, followed by 20 mg/kg/day as a constant infusion.</div></li><li class="half_rhythm"><div><b>Activated charcoal:&#x000a0;</b>May reduce absorption of amatoxins if given early after ingestion&#x000a0;and may&#x000a0;also prevent toxin readsorption&#x000a0;hours later as amatoxins undergo enterohepatic recirculation. A dose of 1 g/kg may be given every 2 to 4 hours.</div></li><li class="half_rhythm"><div><b>Cyclosporine:</b> Inhibitor of OAT-P transporter in&#x000a0;<i>in vitro</i> studies<a class="bk_pop" href="#article-30396.r6">[6]</a>. Though cyclosporine is well studied for other indications, use for amatoxin mushroom toxicity is limited to case reports.</div></li><li class="half_rhythm"><div>A variety of other therapies, such as intravenous cimetidine or thioctic acid, have been tried but have only animal model support.</div></li></ol><p>In selected cases, once a severe liver injury occurs, despite aggressive fluid resuscitation and supportive care, a liver transplant may be the only life-saving option. Rapid progression to hepatic encephalopathy, hepatorenal syndrome, or coagulopathy are indications for liver transplantation. Consideration to transfer to a liver transplant setting and intensive care unit care should be done early in the course of&#x000a0;mushroom ingestions.</p><p>When renal failure occurs, dialysis should be used, but its use even early after an ingestion does not remove Amatoxin from the blood.</p></div><div id="article-30396.s10"><h2 id="_article-30396_s10_">Differential Diagnosis</h2><p>Confirmatory testing of amatoxin exposure is rarely available and relies on a strong supporting history. Thus, appropriate consideration should be given to other causes of acute hepatitis and liver failure such as acetaminophen overdose, infection, and autoimmune disorders.</p></div><div id="article-30396.s11"><h2 id="_article-30396_s11_">Complications</h2><ul><li class="half_rhythm"><div>Renal and liver toxicity</div></li><li class="half_rhythm"><div>Encephalopathy</div></li><li class="half_rhythm"><div>Dehydration</div></li><li class="half_rhythm"><div>Pancreatitis</div></li><li class="half_rhythm"><div>Neuropathy</div></li></ul></div><div id="article-30396.s12"><h2 id="_article-30396_s12_">Consultations</h2><p>A regional poison control center or medical toxicologist should be consulted in cases of amatoxin-containing mushroom exposure or suspected amatoxin hepatotoxicity. Additionally, poison control centers often collaborate with local mycologists who may be able to&#x000a0;aid in mushroom identification.</p></div><div id="article-30396.s13"><h2 id="_article-30396_s13_">Pearls and Other Issues</h2><p>The prognosis is dependent on the mushrooms ingested and the amount of&#x000a0;time it takes&#x000a0;to seek care.</p><p>Death is rare if treatment is started immediately, and although fatalities continue to be reported, they occur in less than 5% of all cases in developed countries with early access to intensive care.</p><p>The diagnosis of&#x000a0;amatoxin&#x000a0;poisoning can be made by the classic clinical course of rising liver transaminases within two to three days of foraging for mushrooms.</p><p>Certain specialty laboratories can measure serum concentrations of amatoxin in blood, but the test is not reliable and often negative once symptoms begin.</p></div><div id="article-30396.s14"><h2 id="_article-30396_s14_">Enhancing Healthcare Team Outcomes </h2><p>Mushroom poisoning is not very&#x000a0;common in the US but the toxicity can be very serious. Because the toxin can affect many organs in the body, an interprofessional team approach is necessary to make the diagnosis and manage the poisoning. The key factor that determines the outcome is the amount consumed. Data also indicate that there are some&#x000a0;individual variations in absorption; children tend to&#x000a0;absorb&#x000a0;higher doses of the toxin compared to adults and consequently have a much higher morbidity and mortality. The mortality rates following mushroom poisoning have dropped significantly in the US but liver failure appears to be a common adverse complication. There are reported cases where individuals&#x000a0;have required an immediate liver transplant as a lifesaving measure. The key to preventing mushroom poisoning is education of the public. In some cases, the mushrooms are safe but have been sprayed with toxic pesticides, hence thorough washing of the food is essential. There is no single test that can determine which mushroom is toxic; the best advice is do not eat wild mushrooms but instead buy them from a grocery store.<a class="bk_pop" href="#article-30396.r7">[7]</a><a class="bk_pop" href="#article-30396.r8">[8]</a><a class="bk_pop" href="#article-30396.r7">[7]</a> (Level V)</p></div><div id="article-30396.s15"><h2 id="_article-30396_s15_">Review Questions</h2><ul><li class="half_rhythm"><div>
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</div></li></ul></div><div class="floats-group" id="article-30396.s16"></div><div id="article-30396.s17"><h2 id="_article-30396_s17_">References</h2><dl class="temp-labeled-list"><dt>1.</dt><dd><div class="bk_ref" id="article-30396.r1">Diaz JH. Amatoxin-Containing Mushroom Poisonings: Species, Toxidromes, Treatments, and Outcomes. <span><span class="ref-journal">Wilderness Environ Med. </span>2018 Mar;<span class="ref-vol">29</span>(1):111-118.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/29325729" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 29325729</span></a>]</div></dd><dt>2.</dt><dd><div class="bk_ref" id="article-30396.r2">Trakulsrichai S, Sriapha C, Tongpoo A, Udomsubpayakul U, Wongvisavakorn S, Srisuma S, Wananukul W. Clinical characteristics and outcome of toxicity from Amanita mushroom poisoning. <span><span class="ref-journal">Int J Gen Med. </span>2017;<span class="ref-vol">10</span>:395-400.</span> [<a href="/pmc/articles/PMC5679676/" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pmc">PMC free article<span class="bk_prnt">: PMC5679676</span></a>] [<a href="https://pubmed.ncbi.nlm.nih.gov/29138589" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 29138589</span></a>]</div></dd><dt>3.</dt><dd><div class="bk_ref" id="article-30396.r3">Cervellin G, Comelli I, Rastelli G, Sanchis-Gomar F, Negri F, De Luca C, Lippi G. Epidemiology and clinics of mushroom poisoning in Northern Italy: A 21-year retrospective analysis. <span><span class="ref-journal">Hum Exp Toxicol. </span>2018 Jul;<span class="ref-vol">37</span>(7):697-703.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/28905663" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 28905663</span></a>]</div></dd><dt>4.</dt><dd><div class="bk_ref" id="article-30396.r4">Kaneko H, Tomomasa T, Inoue Y, Kunimoto F, Fukusato T, Muraoka S, Gonmori K, Matsumoto T, Morikawa A. Amatoxin poisoning from ingestion of Japanese Galerina mushrooms. <span><span class="ref-journal">J Toxicol Clin Toxicol. </span>2001;<span class="ref-vol">39</span>(4):413-6.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/11527238" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 11527238</span></a>]</div></dd><dt>5.</dt><dd><div class="bk_ref" id="article-30396.r5">Garcia J, Costa VM, Costa AE, Andrade S, Carneiro AC, Concei&#x000e7;&#x000e3;o F, Paiva JA, de Pinho PG, Baptista P, de Lourdes Bastos M, Carvalho F. Co-ingestion of amatoxins and isoxazoles-containing mushrooms and successful treatment: A case report. <span><span class="ref-journal">Toxicon. </span>2015 Sep;<span class="ref-vol">103</span>:55-9.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/26091874" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 26091874</span></a>]</div></dd><dt>6.</dt><dd><div class="bk_ref" id="article-30396.r6">Letschert K, Faulstich H, Keller D, Keppler D. Molecular characterization and inhibition of amanitin uptake into human hepatocytes. <span><span class="ref-journal">Toxicol Sci. </span>2006 May;<span class="ref-vol">91</span>(1):140-9.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/16495352" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 16495352</span></a>]</div></dd><dt>7.</dt><dd><div class="bk_ref" id="article-30396.r7">Ma KW, Chok KS, Chan CK, Dai WC, Sin SL, Lau FL, Chan SC, Lo CM. Liver transplantation: a life-saving procedure following amatoxin mushroom poisoning. <span><span class="ref-journal">Hong Kong Med J. </span>2017 Feb;<span class="ref-vol">23</span>(1):93-6.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/28184019" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 28184019</span></a>]</div></dd><dt>8.</dt><dd><div class="bk_ref" id="article-30396.r8">Schenk-Jaeger KM, Rauber-L&#x000fc;thy C, Bodmer M, Kupferschmidt H, Kullak-Ublick GA, Ceschi A. Mushroom poisoning: a study on circumstances of exposure and patterns of toxicity. <span><span class="ref-journal">Eur J Intern Med. </span>2012 Jun;<span class="ref-vol">23</span>(4):e85-91.</span> [<a href="https://pubmed.ncbi.nlm.nih.gov/22560399" ref="pagearea=cite-ref&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 22560399</span></a>]</div></dd></dl></div><div><dl class="temp-labeled-list small"><dt></dt><dd><div><p class="no_top_margin">
<b>Disclosure: </b>B. Zane Horowitz declares no relevant financial relationships with ineligible companies.</p></div></dd><dt></dt><dd><div><p class="no_top_margin">
<b>Disclosure: </b>Michael Moss declares no relevant financial relationships with ineligible companies.</p></div></dd></dl></div><div class="bk_prnt_sctn"><h2>Figures</h2><div class="whole_rhythm bk_prnt_obj bk_first_prnt_obj"><div id="article-30396.image.f1" class="figure bk_fig"><div class="graphic"><img src="/books/NBK431052/bin/Amanita__Phalloides__1.jpg" alt="Image Amanita__Phalloides__1" /></div><div class="caption"><p>Amanita Phalloides Contributed by BZ Horowitz, MD</p></div></div></div></div></div></div>
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