Dacryops – A review

Tanaboonyawat, Sombat; Idowu, Oluwatobi O; Copperman, Thomas S; Vagefi, M. Reza; Kersten, Robert C.

doi:10.1080/01676830.2019.1608564

Cited by 18 publications

(51 citation statements)

References 51 publications

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“…In humans, and in the ventromedial site of the orbit in dogs 12,20,21 dacryops is an uncommon benign cystic lacrimal gland tissue neoplasm. The exact etiology of dacryops remains unknown 22 . Cysts of ectopic glands have been reported to persist in some humans 18 and could be considered among animals in the present study as well, as there is no normal lacrimal gland tissue in the ventromedial orbital region.…”

Section: Discussionmentioning

confidence: 68%

Dacryops with extensive lacrimal and maxillary bone defects in four dogs

Steinmetz

Bomhard²,

Mülling

2021

Veterinary Ophthalmology

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Objective To describe and discuss ventromedial orbital lacrimal gland or duct cysts (dacryops) in dogs with extensive bone defects based on their symptoms, results of diagnostic imaging and histopathological examination, and therapy and discuss their potential origin based on the morphology. Animals studied Four dogs of different breeds, age, and sex were presented with a unilateral round, slow growing, indolent, and non‐tender process ventromedial to the nasal canthus of the eye. Procedures Transverse computed tomography showed a low‐density, non‐contrast‐enhancing cystic process ventromedial to the globe with extensive defects in the lacrimal and maxillary bones in all cases. The cystic character of the structure was confirmed by the aspiration of the brownish fluid without cellular and microbiological contents. For treatment, the cystic fluid was aspirated, and the sclerosing agent polidocanol was injected in three cases. Cystorhinostomy (nasal marsupialisation) was performed in one case as the first choice and in another case following failure of sclerotherapy. Histopathological examination of the cyst walls was performed in two cases and confirmed the diagnosis of dacryops. Results Follow‐up between 2 and 18 months showed no recurrence and very good to excellent cosmetic results. Conclusions Aberrant lacrimal gland or duct tissue with secondary development of dacryops should be included in the differential diagnoses of ventromedial orbital cysts. Large cysts near the lacrimal drainage system with extensive bone defects in dogs should be treated by nasal marsupialization. Treatments such as evacuation of the cyst and inducing sclerosis (sclerotherapy) should be reserved for exceptional cases.

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Section: Discussionmentioning

confidence: 68%

Dacryops with extensive lacrimal and maxillary bone defects in four dogs

Steinmetz

Bomhard²,

Mülling

2021

Veterinary Ophthalmology

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“…Cystic structures associated with the secretory and excretory lacrimal tissues are uncommon and have been sporadically reported in dogs, [11][12][13][14][16][17][18][19][20][21][22][23][24] cats, 10,25 a red-ear slider, 26 horses, 27 and in human patients. [28][29][30][31][32][33] In the physician-based literature dacryops refers to an ectasia of the lacrimal gland ductal tissue 34 and can arise anywhere lacrimal tissue is present. A first classification of this disorder has been described by Duke-Elder 35 in 1974 and was later modified by Bullock 28 in 1986.…”

Section: Discussionmentioning

confidence: 99%

Bilateral temporal dacryops in a cat

Maggio¹

2020

Veterinary Ophthalmology

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A 1‐year‐old Maine Coon female spayed cat was presented for a 7‐week history of bilateral pinkish masses located over the dorsotemporal conjunctival quadrants. Ophthalmic examination revealed the presence of bilateral temporal, slightly hyperemic, subconjunctival masses, fluctuant, and nonpainful. The remainder of the ocular examination was unremarkable. Ultrasound biomicroscopy and B‐scan ultrasonography confirmed the presence of a bilateral cavitated and tubular structure, extending within the temporal orbit, with anechoic fluid‐like content. Surgical removal was performed. Histopathology described the lesions as lacrimal gland tissue, markedly infiltrated by inflammatory cells, associated with cavitated structures filled with proteinaceous debris, and lined by flattened bilayered cuboidal epithelial cells. Bilateral adenitis of unknown origin and dacryops of the temporal lacrimal glands were diagnosed. Both surgical sites healed uneventfully, and no recurrence was reported on either eye during a 12‐month follow‐up period.

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“…Dacryops usually occur unilaterally [12,13] , but they have rarely been shown to occur bilaterally [14,15] . The upper eyelid is more commonly involved (70.8%) than the lower eyelid, likely due to the fact that there are more ducts in the upper eyelid [8] .…”

Section: Discussionmentioning

confidence: 99%

“…The etiology of WD is unclear, and it has been hypothesized that conjunctival scarring (from previous trauma, infection, or chronic inflammation) or IgA hypersecretion may contribute to its formation [10][11][12]21] . A review of the literature by Galindo-Ferreiro estimates that up to 85% of dacryops have been linked to previous conjunctival scarring [11] .…”

Section: Discussionmentioning

confidence: 99%

“…Summary table of previously reported cases of dacryops of the accessory lacrimal gland [8,10,11,[15][16][17][18][19][20][21][22] A B typically show a T2 hyperintense, T1 hypointense mass with enhancement of the wall after gadolinium consistent with a fluid filled cyst [8,24] . Histopathology of WD typically reveals a non-keratinizing, double layer of cuboidal to columnar epithelium [9,11,12,21] . Given the location of the cyst at the superior tarsal border, the cyst could potentially stretch or cause a dehiscence of the Muller's muscle underneath, which is a potential alternative mechanism for the ptosis [25] .…”

Section: Discussionmentioning

confidence: 99%

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