case_images: PMC7154250_01
case_images: Photograph showing the swelling of the left lacrimal gland (white arrow).
case_images: cop-0011-0100-g01.jpg
case_images: PMC7154250_01_cop-0011-0100-g01.jpg
case_images: F1
case_images: Swelling of the lacrimal gland was observed in June 2018, and the patient was referred to our hospital for detailed examination (Fig. 1).
case_images: Pathological examination and tissue immunostaining of the left lacrimal gland biopsy showing (a original magnification x10, b original magnification x40) extensive deposition of nonstructural eosinophilic material in the secretory gland and ducts (c original magnification x10, d original magnification x40), which was direct fast scarlet (DFS) positive (e original magnification x40), amyloid A negative (f original magnification x10, g original magnification x40), globulin light chain (kappa) positive (h original magnification x10, i original magnification x40), and globulin light chain (lambda) positive.
case_images: cop-0011-0100-g02.jpg
case_images: PMC7154250_01_cop-0011-0100-g02.jpg
case_images: F2
case_images: Immunostaining was negative for amyloid A and positive for globulin light chains (kappa and lambda) (Fig. 2).
case_images: Tissue immunostaining of the biopsy specimen of the left lacrimal gland showing transthyretin positivity (a original magnification x10, b original magnification x40).
case_images: cop-0011-0100-g03.jpg
case_images: PMC7154250_01_cop-0011-0100-g03.jpg
case_images: F3
case_images: However, additional immunostaining revealed transthyretin positivity (Fig. 3).