Characteristically many thin-walled small blood vessels with frequent neutrophils infiltrate and entrapped epithelial component in 20-30% of cases as Keratinous cyst
, Thin strands of squamous epithelium and Basaloid buds.
Herein, we present a 69-year-old male patient with a giant tarsal keratinous cyst of the right upper eyelid who was misdiagnosed as chalazion of the eyelid.
Key Words: Chalazion, curettage, keratinous cyst, tatsal plate, tumor
Herein, we report a 69-year-old male patient with tarsal keratinous cyst of the right upper eyelid who was misdiagnosed as chalazion.
These morphologic and immunohistochemical findings were compatible with keratinous cyst of the meibomian gland.
whereas the first case of a palpebral keratinous cyst was reported by Jakobiec et al.
Microscopy: Keratinous debritic material along with a nucleate squamous s/o Keratinous cyst
Occasional keratinous cysts
and a matrix of varying composition can also be found.
Others suggest that it may originate from chronic abscess or keratinous cysts
Histologically, the tumors contain varying amounts of: nests of cuboidal/polygonal cells, tubuloalveolar structures, ductal structures, keratinous cysts
and matrix (chondroid substance is the most prevalent).
James Jauchem wrote in the Journal of Clinical Epidemiology of "Calamity on Meadow Street" that "in addition to brain tumors, Brodeur seemed to blame exposure to EMF for the following ailments: Osgood Schlatter syndrome [a disease affecting the tendons of the kneecaps], ganglion and keratinous cysts
[small pockets of fluid resulting from inflammation], scoliosis and other spinal deformities, parotid gland inflammation, hypospadias [an abnormality of the penis in which the urethra opens underneath], heart defects, lipodystrophy [a fatty tissue disease], glomerulonephritis [a kidney disorder], strep throat, fever, dark brown urine, pain and swelling in the eyes, swelling of the face, arm numbness, severe headaches, and keratoacanthoma [a disease of the eyes].
In 1954, Damste and prakken (1) followed by lowenthal and Prakken in 1961 (2, 4) used the terminology for patients with atrichia with multiple follicular keratinous cysts