@article{HendricksMeirHankiretal.2022, author = {Hendricks, Anne and Meir, Michael and Hankir, Mohammed and Lenschow, Christina and Germer, Christoph-Thomas and Schneider, Michael and Wiegering, Armin and Schlegel, Nicolas}, title = {Suppurative thyroiditis caused by ingested fish bone in the thyroid gland: a case report on its diagnostics and surgical therapy}, series = {BMC Surgery}, volume = {22}, journal = {BMC Surgery}, number = {1}, doi = {10.1186/s12893-022-01542-x}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-299775}, year = {2022}, abstract = {Background Accidental ingestion of fish bone is a common cause of otolaryngological emergency. Migration of the ingested bone into the thyroid gland, however, occurs very rarely. The associated clinical presentation, symptoms and duration of discomfort are also highly variable between patients and can be diagnostically challenging. Case presentation Here, we report the case of a 71-year-old female patient presenting with an ingested fish bone that migrated into the right thyroid lobe as a rare cause of suppurative thyroiditis with the clinical features of sepsis. We outline the diagnostic approach, peri- and intraoperative management as well as complications. It is proposed that besides endoscopy, imaging methods such as ultrasound or computed tomography may be necessary to verify the diagnosis and location of an ingested fish bone. Prompt surgical removal of the foreign body and resection of the infectious focus is recommended to minimize the risk of local inflammation, recurrent nerve lesions and septic complications arising from the spread of infection. Conclusion Fish bone migration into the thyroid gland is an extremely rare event, the successful detection and surgical management of which can be achieved through a careful interdisciplinary approach.}, language = {en} } @article{MeirMaurusKuperetal.2021, author = {Meir, Michael and Maurus, Katja and Kuper, Jochen and Hankir, Mohammed and Wardelmann, Eva and Rosenwald, Andreas and Germer, Christoph-Thomas and Wiegering, Armin}, title = {The novel KIT exon 11 germline mutation K558N is associated with gastrointestinal stromal tumor, mastocytosis, and seminoma development}, series = {Genes, Chromosomes \& Cancer}, volume = {60}, journal = {Genes, Chromosomes \& Cancer}, number = {12}, doi = {10.1002/gcc.22988}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257476}, pages = {827-832}, year = {2021}, abstract = {Familial gastrointestinal stromal tumors (GIST) are dominant genetic disorders that are caused by germline mutations of the type III receptor tyrosine kinase KIT. While sporadic mutations are frequently found in mastocytosis and GISTs, germline mutations of KIT have only been described in 39 families until now. We detected a novel germline mutation of KIT in exon 11 (p.Lys-558-Asn; K558N) in a patient from a kindred with several GISTs harboring different secondary somatic KIT mutations. Structural analysis suggests that the primary germline mutation alone is not sufficient to release the autoinhibitory region of KIT located in the transmembrane domain. Instead, the KIT kinase module becomes constitutively activated when K558N combines with different secondary somatic mutations. The identical germline mutation in combination with an additional somatic KIT mutation was detected in a second patient of the kindred with seminoma while a third patient within the family had a cutaneous mastocytosis. These findings suggest that the K558N mutation interferes with the juxtamembranous part of KIT, since seminoma and mastocystosis are usually not associated with exon 11 mutations.}, language = {en} }