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Indian Journal of Ophthalmology Jul 2023Infections of orbit and periorbita are frequent, leading to significant morbidity. Orbital cellulitis is more common in children and young adults. At any age, infection... (Review)
Review
Infections of orbit and periorbita are frequent, leading to significant morbidity. Orbital cellulitis is more common in children and young adults. At any age, infection from the neighboring ethmoid sinuses is a likely cause and is thought to result from anatomical characteristics like thin medial wall, lack of lymphatics, orbital foramina, and septic thrombophlebitis of the valveless veins between the two. Other causes are trauma, orbital foreign bodies, preexisting dental infections, dental procedures, maxillofacial surgeries, Open Reduction and Internal Fixation (ORIF), and retinal buckling procedures. The septum is a natural barrier to the passage of microorganisms. Orbital infections are caused by Gram-positive, Gram-negative organisms and anaerobes in adults and in children, usually by Staphylococcus aureus or Streptococcus species. Individuals older than 15 years of age are more likely to harbor polymicrobial infections. Signs include diffuse lid edema with or without erythema, chemosis, proptosis, and ophthalmoplegia. It is an ocular emergency requiring admission, intravenous antibiotics, and sometimes surgical intervention. Computed tomography (CT) and magnetic resonance imaging (MRI) are the main modalities to identify the extent, route of spread from adjacent structures, and poor response to intravenous antibiotics and to confirm the presence of complications. If orbital cellulitis is secondary to sinus infection, drainage of pus and establishment of ventilation to the sinus are imperative. Loss of vision can occur due to orbital abscess, cavernous sinus thrombosis, optic neuritis, central retinal artery occlusion, and exposure keratopathy, and possible systemic sequelae include meningitis, intracranial abscess, osteomyelitis, and death. The article was written by authors after a thorough literature search in the PubMed-indexed journals.
Topics: Child; Young Adult; Humans; Orbital Cellulitis; Abscess; Orbit; Exophthalmos; Anti-Bacterial Agents
PubMed: 37417106
DOI: 10.4103/IJO.IJO_3283_22 -
The Medical Clinics of North America May 2021The eyelids and orbit encompass intricate bony and soft tissue structures that work harmoniously in concert to protect, support, and nourish the eye in order to... (Review)
Review
The eyelids and orbit encompass intricate bony and soft tissue structures that work harmoniously in concert to protect, support, and nourish the eye in order to facilitate and maintain its function. Insult to periorbital and orbital anatomy can compromise orbital and ocular homeostasis. This article provides a foundational overview of eyelid and orbital anatomy, as well as common and key disorders that may confront internists and medical subspecialists.
Topics: Eye Injuries; Eyelid Diseases; Eyelids; Humans; Orbit; Orbital Diseases; Orbital Fractures
PubMed: 33926646
DOI: 10.1016/j.mcna.2021.02.007 -
American Journal of Obstetrics and... Nov 2019
Topics: Delivery, Obstetric; Diagnosis, Differential; Female; Fetus; Genetic Testing; Humans; Orbit; Pregnancy; Prognosis; Ultrasonography, Prenatal
PubMed: 31679588
DOI: 10.1016/j.ajog.2019.08.052 -
Klinische Monatsblatter Fur... Dec 2021Orbital trauma is a common medical emergency with potentially sight-threatening complications. Due to the confined orbital conditions, any direct injury or...
Orbital trauma is a common medical emergency with potentially sight-threatening complications. Due to the confined orbital conditions, any direct injury or space-consuming lesion may cause serious tissue damage. Possible complications are orbital fractures, foreign body injuries, development of orbital compartment syndrome and traumatic optic neuropathy. Clinical signs include periorbital hematoma or emphysema, subconjunctival hemorrhage, proptosis, decreased ocular mobility, decreased vision, increased intraocular pressure and relative afferent pupillary defect. Ophthalmic status and low-dose CT-imaging provide key information regarding the therapeutic decision. Treatment options include surgical exploration, reconstruction or decompression or a conservative approach with anti-inflammatory or anti-glaucomatous medication. Rapid interdisciplinary diagnostics and therapy is critical for early detection and prevention of irreversible functional loss respectively. Considering the frequent association with life-threatening comorbidities diagnosis may be complicated.
Topics: Decompression, Surgical; Exophthalmos; Eye Injuries; Humans; Orbit; Orbital Diseases; Orbital Fractures
PubMed: 34798667
DOI: 10.1055/a-1669-0770 -
Arquivos Brasileiros de Oftalmologia 2021The purpose of this article was to report a case of intraconal lacrimal gland tissue and to review the literature on lacrimal gland choristoma. The magnetic resonance... (Review)
Review
The purpose of this article was to report a case of intraconal lacrimal gland tissue and to review the literature on lacrimal gland choristoma. The magnetic resonance imaging findings of a biopsy-proven orbital case are also presented. A PubMed database search was performed using the key terms heterotopic, ectopic, aberrant, choristoma, and lacrimal gland to identify all the previously documented studies on lacrimal gland choristoma, in English, Spanish, and French. We classified the lacrimal gland choristoma cases classified according to the location of the lesions, clinical appearance, management, and outcome. The search targeting the period between 1887 and 2019 returned 79 articles, which were reviewed. We found a total of 113 cases of choristomas with normal lacrimal gland tissue. Only two of them were not associated with the eye or its adnexa while the remaining 111 lesions were found either on the ocular surface (n=46) or in the orbit (n=34). Intraocular choristomas were found in 18 patients, and the rest of the lesions were noted either on the eyelids (n=10) or in the lacrimal drainage system (n=3). Orbital and intraocular choristomas are the most harmful lesions as orbital choristomas are frequently associated with permanent diplopia while intraocular lacrimal gland choristomas have a poor visual prognosis and are a common cause of enucleation of the eye. In one of the reported cases, a corneal lacrimal gland choristoma had been experimentally induced by activating the FGF10 signaling pathway. Lacrimal gland choristomas are not uncommon. This peculiar type of lesion has been experimentally induced and may appear in a variety of locations associated with the globe and its adnexa.
Topics: Choristoma; Cornea; Humans; Lacrimal Apparatus; Orbit
PubMed: 35416898
DOI: 10.5935/0004-2749.20220029 -
Neuroimaging Clinics of North America Nov 2022Each orbit is a complex structure housing the globe, multiple cranial nerves, muscles, vascular structures, which support the visual sense. Many of these structures have... (Review)
Review
Each orbit is a complex structure housing the globe, multiple cranial nerves, muscles, vascular structures, which support the visual sense. Many of these structures have been delineated in careful detail by anatomists but remain beyond the resolution of conventional imaging techniques. With the advances of higher resolution MR, surface coil usage, and thinner section computed tomographic images, the ability to resolve these small structures continues to improve, allowing radiologists to provide more detailed anatomic descriptions for preoperative and pretreatment planning.
Topics: Humans; Magnetic Resonance Imaging; Orbit; Tomography, X-Ray Computed
PubMed: 36244718
DOI: 10.1016/j.nic.2022.07.020 -
Neuroimaging Clinics of North America Feb 2022There is a plethora of surgical procedures that are performed in the eye and orbit. The consequences of these procedures can often be observed on diagnostic imaging... (Review)
Review
There is a plethora of surgical procedures that are performed in the eye and orbit. The consequences of these procedures can often be observed on diagnostic imaging through the presence of various implants and altered anatomy. The expected postoperative changes in the eye and orbit, the impact of implants on image quality and safety, and potential associated complications are reviewed in this article. Conventional computed tomography and MR imaging scans are useful for the postoperative assessment of the eye and orbit. The computed tomography and MR imaging findings related to the postoperative eye and orbit are reviewed in this article.
Topics: Diagnostic Tests, Routine; Humans; Magnetic Resonance Imaging; Orbit; Tomography, X-Ray Computed; Vision Disorders
PubMed: 34809839
DOI: 10.1016/j.nic.2021.08.007 -
Atlas of the Oral and Maxillofacial... Mar 2022
Review
Topics: Facial Bones; Humans; Hypertelorism; Orbit
PubMed: 35256103
DOI: 10.1016/j.cxom.2021.11.002 -
Ugeskrift For Laeger Dec 2023In this case report, two patients were initially presented with orbital symptoms due to undiagnosed sinonasal disease. An eight-year-old girl was suspected of preseptal...
In this case report, two patients were initially presented with orbital symptoms due to undiagnosed sinonasal disease. An eight-year-old girl was suspected of preseptal cellulitis due to swelling and redness around the right eye for a month. MRI of the orbit showed a change in the orbit suspected to be a tumour. Regression in symptoms was seen after three months and a mucocele was suspected. The other patient was a 57-year-old woman suspected of left-side acute dacryocystitis with a palpable mass above the medial canthus for a month. MRI was performed due to atypical presentation and showed tumour changes originating from the ethmoid sinus.
Topics: Female; Humans; Middle Aged; Child; Orbit; Head; Neoplasms
PubMed: 38105733
DOI: No ID Found -
Laryngo- Rhino- Otologie Feb 2022
Topics: Humans; Neoplasm Recurrence, Local; Ophthalmologic Surgical Procedures; Orbit
PubMed: 35098516
DOI: 10.1055/a-1684-4923