Open AccessCYSTIC GOITER WITH SQUAMOUS‐CELL METAPLASIA–CASE REPORT AND COMMENT ON ORIGIN OF SQUAMOUS‐CELL CYST–
Author(s) -
Ohashi Hirofumi,
Sato Akio,
Tanabe Yusuke,
Shimokawa Kuniyasu,
Ojima Akitsugu
Publication year - 1976
Publication title -
acta patholigica japonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
ISSN - 0001-6632
DOI - 10.1111/j.1440-1827.1976.tb00507.x
Subject(s) - squamous metaplasia , pathology , goiter , squamous cell cancer , medicine , basal cell , metaplasia , cell , thyroid , epithelium , biology , cancer , genetics
A 53‐year‐old woman with a left unilocular cystic goiter of the size of a small orange was reported. Approximately four‐tenths of the inner surface was lined with several layered squamous epithelium with few follicles remaining. A gradual metaplastic transition from the follicular epithelium to the flattened cuboidal and to the squamous epithelium was observed. The ultimo‐branchial body has been understood to be a possible origin of an entirely squamous cell cyst of the thyroid, three of which have been reported. The difference between the ultimo‐branchial and metaplastic origins will be discussed, and a new designation‐primary (ultimo‐branchial) and secondary (metaplastic) squamous‐cell cyst will be proposed.