{"id":"https://openalex.org/W7219689946","doi":"https://doi.org/10.7759/cureus.117435","title":"Severe Iron Deficiency Anemia With Koilonychia and Endoscopically Detected Duodenal Ascariasis in an Elderly Male: A Case Report","display_name":"Severe Iron Deficiency Anemia With Koilonychia and Endoscopically Detected Duodenal Ascariasis in an Elderly Male: A Case Report","publication_year":2026,"publication_date":"2026-10-04","ids":{"openalex":"https://openalex.org/W7219689946","doi":"https://doi.org/10.7759/cureus.117435","pmid":"https://pubmed.ncbi.nlm.nih.gov/42979331","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/13730291"},"language":"en","primary_location":{"id":"doi:10.7759/cureus.117435","doi":"https://doi.org/10.7759/cureus.117435","is_oa":true,"landing_page_url":"https://doi.org/10.7759/cureus.117435","pdf_url":"https://www.cureus.com/articles/532819-severe-iron-deficiency-anemia-with-koilonychia-and-endoscopically-detected-duodenal-ascariasis-in-an-elderly-male-a-case-report.pdf","source":{"id":"https://openalex.org/S2738950867","display_name":"Cureus","issn_l":"2168-8184","issn":["2168-8184"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-20","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310316779","host_organization_name":"Cureus, Inc.","host_organization_lineage":["https://openalex.org/P4310316779"],"host_organization_lineage_names":["Cureus, Inc."],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cureus","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.cureus.com/articles/532819-severe-iron-deficiency-anemia-with-koilonychia-and-endoscopically-detected-duodenal-ascariasis-in-an-elderly-male-a-case-report.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5157229242","display_name":"Samiha Mobashshira Rotshi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I96369009","display_name":"Dhaka Medical College and Hospital","ror":"https://ror.org/0150ewf57","country_code":"BD","type":"education","lineage":["https://openalex.org/I96369009"]}],"countries":["BD"],"is_corresponding":true,"raw_author_name":"Samiha Mobashshira Rotshi","raw_affiliation_strings":["Medicine, Dhaka Medical College and Hospital, Dhaka, BGD"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medicine, Dhaka Medical College and Hospital, Dhaka, BGD","institution_ids":["https://openalex.org/I96369009"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028314475","display_name":"Saptarsi Mondal","orcid":"https://orcid.org/0000-0003-1140-9322","observed_orcids":["https://orcid.org/0000-0003-1140-9322"]},"institutions":[{"id":"https://openalex.org/I96369009","display_name":"Dhaka Medical College and Hospital","ror":"https://ror.org/0150ewf57","country_code":"BD","type":"education","lineage":["https://openalex.org/I96369009"]}],"countries":["BD"],"is_corresponding":false,"raw_author_name":"Saptarsi Mondal","raw_affiliation_strings":["Medicine, Dhaka Medical College and Hospital, Dhaka, BGD"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medicine, Dhaka Medical College and Hospital, Dhaka, BGD","institution_ids":["https://openalex.org/I96369009"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5157094343","display_name":"Subrata Kumar Biswas","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I96369009","display_name":"Dhaka Medical College and Hospital","ror":"https://ror.org/0150ewf57","country_code":"BD","type":"education","lineage":["https://openalex.org/I96369009"]}],"countries":["BD"],"is_corresponding":false,"raw_author_name":"Subrata Kumar Biswas","raw_affiliation_strings":["Medicine, Dhaka Medical College and Hospital, Dhaka, BGD"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medicine, Dhaka Medical College and Hospital, Dhaka, BGD","institution_ids":["https://openalex.org/I96369009"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5156904198","display_name":"Tasnova Jaman Liana","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I96369009","display_name":"Dhaka Medical College and Hospital","ror":"https://ror.org/0150ewf57","country_code":"BD","type":"education","lineage":["https://openalex.org/I96369009"]}],"countries":["BD"],"is_corresponding":false,"raw_author_name":"Tasnova Jaman Liana","raw_affiliation_strings":["Medicine, Dhaka Medical College and Hospital, Dhaka, BGD"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medicine, Dhaka Medical College and Hospital, Dhaka, BGD","institution_ids":["https://openalex.org/I96369009"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5157229242"],"corresponding_institution_ids":["https://openalex.org/I96369009"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.7413968,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"18","issue":"10","first_page":"e117435","last_page":"e117435"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10695","display_name":"Parasites and Host Interactions","score":0.3163999915122986,"subfield":{"id":"https://openalex.org/subfields/2405","display_name":"Parasitology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10695","display_name":"Parasites and Host Interactions","score":0.3163999915122986,"subfield":{"id":"https://openalex.org/subfields/2405","display_name":"Parasitology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10452","display_name":"Iron Metabolism and Disorders","score":0.26809999346733093,"subfield":{"id":"https://openalex.org/subfields/2720","display_name":"Hematology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11378","display_name":"Gastrointestinal Bleeding Diagnosis and Treatment","score":0.15610000491142273,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/iron-deficiency-anemia","display_name":"iron deficiency anemia","score":0.9890000224113464},{"id":"https://openalex.org/keywords/koilonychia","display_name":"koilonychia","score":0.996999979019165},{"id":"https://openalex.org/keywords/ascaris-lumbricoides","display_name":"Ascaris lumbricoides","score":0.9980000257492065},{"id":"https://openalex.org/keywords/parasitic-infection","display_name":"parasitic infection","score":0.7910000085830688},{"id":"https://openalex.org/keywords/elderly-male","display_name":"elderly man","score":0.6669999957084656},{"id":"https://openalex.org/keywords/microcytic-hypochromic-anemia","display_name":"microcytic hypochromic anemia","score":0.9369999766349792},{"id":"https://openalex.org/keywords/serum-ferritin","display_name":"serum ferritin","score":0.7739999890327454},{"id":"https://openalex.org/keywords/upper-endoscopy","display_name":"upper gastrointestinal endoscopy","score":0.7929999828338623},{"id":"https://openalex.org/keywords/albendazole","display_name":"albendazole","score":0.875},{"id":"https://openalex.org/keywords/red-blood-cell-transfusion","display_name":"red blood cell transfusion","score":0.8159999847412109},{"id":"https://openalex.org/keywords/oral-iron-supplementation","display_name":"oral iron supplementation","score":0.8349999785423279},{"id":"https://openalex.org/keywords/stool-microscopy","display_name":"stool microscopy","score":0.8109999895095825}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9853000044822693},{"id":"https://openalex.org/C2776732101","wikidata":"https://www.wikidata.org/wiki/Q954674","display_name":"Iron-deficiency anemia","level":3,"score":0.7653999924659729},{"id":"https://openalex.org/C90924648","wikidata":"https://www.wikidata.org/wiki/Q120569","display_name":"Gastroenterology","level":1,"score":0.7348999977111816},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.7085000276565552},{"id":"https://openalex.org/C2777417653","wikidata":"https://www.wikidata.org/wiki/Q1313081","display_name":"Iron deficiency","level":3,"score":0.5662999749183655},{"id":"https://openalex.org/C2778248108","wikidata":"https://www.wikidata.org/wiki/Q5445","display_name":"Anemia","level":2,"score":0.45249998569488525},{"id":"https://openalex.org/C2779459945","wikidata":"https://www.wikidata.org/wiki/Q842428","display_name":"Ascariasis","level":3,"score":0.42399999499320984},{"id":"https://openalex.org/C2778650401","wikidata":"https://www.wikidata.org/wiki/Q2306782","display_name":"Hypochromic anemia","level":3,"score":0.29670000076293945},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.29170000553131104},{"id":"https://openalex.org/C2776175824","wikidata":"https://www.wikidata.org/wiki/Q1145668","display_name":"Hemolytic anemia","level":2,"score":0.275299996137619},{"id":"https://openalex.org/C2908992689","wikidata":"https://www.wikidata.org/wiki/Q134955","display_name":"Duodenal Diseases","level":3,"score":0.2624000012874603},{"id":"https://openalex.org/C81182388","wikidata":"https://www.wikidata.org/wiki/Q353963","display_name":"Complication","level":2,"score":0.25459998846054077}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.7759/cureus.117435","doi":"https://doi.org/10.7759/cureus.117435","is_oa":true,"landing_page_url":"https://doi.org/10.7759/cureus.117435","pdf_url":"https://www.cureus.com/articles/532819-severe-iron-deficiency-anemia-with-koilonychia-and-endoscopically-detected-duodenal-ascariasis-in-an-elderly-male-a-case-report.pdf","source":{"id":"https://openalex.org/S2738950867","display_name":"Cureus","issn_l":"2168-8184","issn":["2168-8184"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-20","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310316779","host_organization_name":"Cureus, Inc.","host_organization_lineage":["https://openalex.org/P4310316779"],"host_organization_lineage_names":["Cureus, Inc."],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cureus","raw_type":"journal-article"},{"id":"pmh:oai:pubmedcentral.nih.gov:13730291","doi":null,"is_oa":true,"landing_page_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC13730291/","pdf_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC13730291/pdf/cureus-0018-00000117435.pdf","source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cureus","raw_type":"Text"},{"id":"pmid:42979331","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/42979331","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cureus","raw_type":"Case Reports"}],"best_oa_location":{"id":"doi:10.7759/cureus.117435","doi":"https://doi.org/10.7759/cureus.117435","is_oa":true,"landing_page_url":"https://doi.org/10.7759/cureus.117435","pdf_url":"https://www.cureus.com/articles/532819-severe-iron-deficiency-anemia-with-koilonychia-and-endoscopically-detected-duodenal-ascariasis-in-an-elderly-male-a-case-report.pdf","source":{"id":"https://openalex.org/S2738950867","display_name":"Cureus","issn_l":"2168-8184","issn":["2168-8184"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","poland-20","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310316779","host_organization_name":"Cureus, Inc.","host_organization_lineage":["https://openalex.org/P4310316779"],"host_organization_lineage_names":["Cureus, Inc."],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cureus","raw_type":"journal-article"},"sustainable_development_goals":[{"score":1.0,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[{"id":"https://openalex.org/study-designs/case-report","display_name":"Case Report"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7219689946.pdf","grobid_xml":"https://content.openalex.org/works/W7219689946.grobid-xml"},"referenced_works_count":7,"referenced_works":["https://openalex.org/W1981740050","https://openalex.org/W2752738744","https://openalex.org/W2982686061","https://openalex.org/W3198574699","https://openalex.org/W4210346277","https://openalex.org/W4281260034","https://openalex.org/W4413736106"],"related_works":["https://openalex.org/W2921603353","https://openalex.org/W7166126115","https://openalex.org/W2768774041","https://openalex.org/W4417195714","https://openalex.org/W2979649604","https://openalex.org/W3211234231","https://openalex.org/W4387324549","https://openalex.org/W4281260034","https://openalex.org/W2977693217","https://openalex.org/W7113903059"],"abstract_inverted_index":{"Iron":[0],"deficiency":[1,114,175],"anemia":[2,78,176],"is":[3,39],"a":[4,36,87,195,204],"common":[5],"nutritional":[6],"and":[7,46,59,101,143,155],"clinical":[8,141],"condition":[9],"that":[10,164],"can":[11,167],"arise":[12],"from":[13],"chronic":[14],"blood":[15],"loss,":[16,58],"insufficient":[17],"dietary":[18],"intake,":[19],"impaired":[20],"absorption,":[21],"or":[22,170],"parasitic":[23,165],"infection,":[24],"especially":[25],"in":[26,62,122,177],"areas":[27],"where":[28],"such":[29],"infections":[30],"are":[31],"endemic.In":[32],"elderly":[33],"male":[34,49],"patients,":[35],"thorough":[37],"evaluation":[38,197],"necessary":[40],"to":[41,109,172],"rule":[42],"out":[43],"gastrointestinal":[44,106],"bleeding":[45],"malignancy.A":[47],"60-year-old":[48],"farmer":[50],"experienced":[51],"exertional":[52],"dyspnea,":[53],"generalized":[54],"weakness,":[55],"pallor,":[56],"weight":[57],"gradual":[60],"changes":[61],"his":[63,140],"nails.Physical":[64],"examination":[65],"revealed":[66,116],"the":[67,111,123,147],"characteristic":[68],"spoon-shaped":[69],"nails":[70],"of":[71,90,95,160,194],"koilonychia.Laboratory":[72],"tests":[73],"confirmed":[74],"severe":[75,112,173,200],"microcytic":[76],"hypochromic":[77],"with":[79,126,132,169],"significantly":[80],"depleted":[81],"iron":[82,113,145,174],"stores,":[83],"as":[84,192,203],"indicated":[85],"by":[86],"hemoglobin":[88],"level":[89],"4.2":[91],"g/dL,":[92],"serum":[93,99],"ferritin":[94],"1.92":[96],"ng/mL,":[97],"low":[98],"iron,":[100],"elevated":[102],"total":[103],"iron-binding":[104],"capacity.Upper":[105],"endoscopy,":[107],"performed":[108],"investigate":[110],"anemia,":[115,201],"multiple":[117],"live":[118],"Ascaris":[119],"lumbricoides":[120],"worms":[121],"duodenum,":[124],"consistent":[125],"duodenal":[127],"ascariasis.The":[128],"patient":[129],"was":[130],"treated":[131],"albendazole,":[133],"red":[134],"cell":[135],"concentrate":[136],"transfusion":[137],"based":[138],"on":[139],"condition,":[142],"oral":[144],"supplementation.At":[146],"three-month":[148],"follow-up,":[149],"he":[150],"demonstrated":[151],"marked":[152],"clinical,":[153],"hematological,":[154],"biochemical":[156],"improvement,":[157],"including":[158],"improvement":[159],"koilonychia.This":[161],"case":[162],"underscores":[163],"infestation":[166],"coexist":[168],"contribute":[171],"endemic":[178],"areas.Stool":[179],"microscopy":[180],"remains":[181],"an":[182],"important":[183],"standard":[184],"diagnostic":[185],"test,":[186],"whereas":[187],"endoscopy":[188],"should":[189],"be":[190],"viewed":[191],"part":[193],"broader":[196],"for":[198,207],"unexplained":[199],"not":[202],"first-line":[205],"test":[206],"ascariasis.":[208]},"counts_by_year":[],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2026-10-05T00:00:00"}
