Infections are characterized by pronounced acute inflammation, squamous metaplasia, blood and reactive epithelial changes. SMOLD is distinct from squamous metaplasia that may occur in papilomatous hyperplasia. Areas of squamous metaplasia and epithelial pearls may be present. Common sites for squamous metaplasia include the bladder and cervix. Apocrine metaplasia is a reversible transformation of cells to an apocrine phenotype. Four types of morphological adaptations include atrophy, hypertrophy, hyperplasia, and metaplasia. Intestinal metaplasia is classified histologically as complete or incomplete. A deficiency or overdose can also lead to squamous metaplasia. However, metaplasia or dysplasia does not always progress to neoplasia. An example of PAS-D in use is in showing gastric/duodenal metaplasia in duodenal adenomas. Reappearance of symptoms may be due to mucosal metaplasia of the nose. Goblet cells may be an indication of metaplasia, such as in Barrett's esophagus. Older terms include "myelofibrosis with myeloid metaplasia" and "agnogenic myeloid metaplasia". He died in 1967 of myeloid metaplasia, a rare blood disease, in Boston, Massachusetts. Presence of GCC in any other tissue of the body represents colorectal metaplasia.