Amyloid Goiter Secondary to Ulcerative Colitis

Area of Science:

• Endocrinology
• Gastroenterology
• Pathology

Background:

• Diffuse amyloid goiter (AG) involves amyloid deposition in the thyroid.
• AG can stem from primary or secondary amyloidosis.
• Secondary amyloidosis is rarely linked to inflammatory bowel diseases (IBD), particularly ulcerative colitis (UC).

Purpose of the Study:

• To report a rare case of diffuse amyloid goiter (AG) secondary to ulcerative colitis (UC).
• To emphasize the diagnostic challenges and methods for secondary amyloid goiter.

Main Methods:

• Case presentation of a 35-year-old male patient.
• Review of diagnostic approaches for secondary amyloid goiter.
• Histopathologic analysis and histochemical staining for definitive diagnosis.

Main Results:

• The patient presented with diffuse amyloid goiter (AG).
• The condition was attributed to secondary amyloidosis associated with ulcerative colitis (UC).
• Medullary thyroid cancer was considered in the differential diagnosis.

Conclusions:

• Diffuse amyloid goiter caused by UC-associated secondary amyloidosis is exceptionally rare.
• Histopathology is crucial for diagnosing secondary amyloid goiter, as imaging and biochemical tests are insufficient.
• This case underscores the importance of considering rare systemic associations in IBD patients.