Publications by authors named "Vahdani K"

Oncocytic carcinoma is a rare malignant neoplasm of oncocytic cells, such cells being characterized by abundant granular eosinophilic cytoplasm, invasive growth, and pronounced cellular pleomorphism. It may arise de novo, or through malignant transformation of a pre-existing benign oncocytoma. Oncocytic carcinoma most commonly occurs in the salivary glands, with rare involvement of the ocular adnexa where it mainly affects caruncle, conjunctiva, and lacrimal sac, and only very arises in the lacrimal gland.

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Purpose: To relate dacryoscintillographic features to presenting symptoms and signs for watery-eyed patients with patent drainage systems.

Methods: Retrospective case note and imaging review for patients with watering eye(s) and clinical evidence of impaired tear drainage who underwent dacryoscintillography (DSG). Three DSG features were graded, along with 4 symptoms, 7 signs, and the degree of fluid reflux and nasal fluid passage on gentle syringing.

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Purpose: To compare clinical characteristics of patients with and without a known systemic malignancy at the time of diagnosis of orbital metastases.

Methods: Retrospective case note and imaging review for patients with orbital metastases presenting between 1980 and 2022. Patients were classified as having known malignancy at orbital presentation (group I) or without known malignancy (group II).

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Purpose: To characterize symptoms and signs for patients with tearing eye(s) and ipsilateral nasolacrimal duct stenosis (NLDS), as defined by delayed fluorescein disappearance test and ocular reflux of saline during gentle irrigation of a patent drainage system.

Methods: Retrospective case-note review of a consistent grading of 4 symptoms and 7 signs, together with estimates of the degree of fluid reflux and nasal fluid passage on gentle saline syringing. Characteristics, including gender differences, were compared for unilateral or bilateral symptoms.

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Article Synopsis
  • Trigeminal trophic syndrome (TTS) is a rare condition caused by damage to the trigeminal nerve, leading to facial ulceration, loss of sensation, and abnormal skin sensations, especially near the nostrils.
  • The lesions associated with TTS arise from continuous self-harm and trauma to the affected skin area.
  • This report showcases three individual cases of TTS, emphasizing changes around the eyes and different causes such as strokes and herpes zoster infection.
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Article Synopsis
  • The study evaluates the success of a new surgical technique called conjunctival mucosal transposition for treating contracted fornices in anophthalmic sockets (eyes that have been removed).
  • A review of 32 patients showed that 81% had good anatomical results after an average follow-up of 9.2 years, with higher success rates in patients with milder contractions.
  • While most patients experienced comfortable prosthetic wear, some with severe contractions needed additional procedures due to complications from the transposition flap technique.
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Purpose: To evaluate the presenting features of patients with nontraumatic orbital hemorrhage (NTOH) based on etiopathological factors.

Methods: A retrospective case-note review for demographics and presenting features of patients with nontraumatic orbital hemorrhage. Patients were categorized into 3 groups: group I with known systemic vascular disease, group II with known or newly revealed orbital vascular anomalies, and group III with no known underlying vasculopathy.

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Purpose: To report long-term outcomes after surgery for primary benign papillomas of the lacrimal drainage system.

Methods: Retrospective review of patients with primary lacrimal drainage system papillomas, first seen between 1984 and 2021, but excluding lesions with sino-nasal origin or malignant histology. Patients were categorized by tumor histology (squamous, transitional, and mixed cell) and growth pattern (exophytic, endophytic, or mixed).

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Purpose: To examine the indications for repeated lacrimal gland biopsies, and the rate of detection of a new diagnosis.

Methods: A single-center, retrospective review of patients who underwent more than 1 lacrimal gland biopsy, either ipsilateral or contralateral, between 2000 and 2022.

Results: One hundred and twenty-three patients (80 female; 65%) had repeated lacrimal gland biopsy.

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Purpose: To assess long-term outcomes and reinterventions for exposed and nonexposed intraconal orbital implants after single-stage socket revisional surgery.

Methods: Retrospective case-note review of patients with exposed or nonexposed orbital ball implants, who underwent a single-stage ball exchange (Group I) or ball removal with dermis-fat graft (Group II); Group I was subdivided as having either exposed (A) or nonexposed (B) implants. Outcomes were compared with similar cohorts undergoing multistage surgery.

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Purpose: To evaluate long-term outcomes of staged volume rehabilitation for acquired anophthalmos.

Methods: Case-note review of patients who had preceding i) eye removal without implant, ii) eye removal with an intraconal implant, but ball-related problems, or iii) removal of exposed implant. Secondary interventions were a) a first-time ball implant, b) dermis-fat graft, c) ball repositioning, d) ball replacement after prior removal, or e) orbital floor implantation.

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Background: Conventionally, management of involutional entropion involves correcting both vertical and horizontal laxity, however the optimal surgical approach is debated.

Objective: To compare the recurrence rate of horizontal lower eyelid shortening alone with combined surgical approaches for correction of involutional lower eyelid entropion.

Methods And Material: A retrospective, comparative, consecutive case series of patients undergoing surgery for involutional lower eyelid entropion with both horizontal and vertical laxity.

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Purpose: To describe a case of recurrent orbital inflammation and superior orbital fissure syndrome associated with VEXAS (vacuoles, E1 enzyme, X-linked, auto-inflammatory, somatic) syndrome.

Case Presentation: VEXAS syndrome is a recently identified multi-system inflammatory disease of late adult onset. The authors describe the case of a 76-year-old man who presented with recurrent episodes of orbital inflammation, with superior orbital fissure syndrome, dacryoadenitis and orbital myositis.

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Aim: To describe the features of an orbital infarction syndrome arising after prolonged orbital pressure during drug-induced stupor in young people.

Patients And Methods: The clinical presentation and course for drug-induced orbital infarction is described, based on a retrospective review of clinical notes and imaging.

Results: Two cases of orbital infarction syndrome, due to prolonged orbital compression caused by sleeping with pressure on the orbit during drug-induced stupor, are described.

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Purpose: To report long-term outcomes after surgery for orbital solitary fibrous tumors.

Methods: Retrospective review of patients with orbital solitary fibrous tumor, first seen between 1971 and 2022. Primary excisions were grouped as (A) surgically intact, (B) macroscopic, but with cell spillage, or (C) known incomplete excision.

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Aims: To evaluate presenting features of patients with orbital solitary fibrous tumours (SFTs), based on histological phenotype.

Methods: A retrospective case-note review was performed for demographics and presenting features for patients with orbital SFTs. The tumours were classified as "Group IA" hypocellular SFT phenotype, "Group IB" haemangiopericytoma phenotype and low mitotic activity, and high-grade "Group II" haemangiopericytoma phenotype with high mitotic activity.

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Aims: To determine the incidence and risk factors for poor postoperative visual outcome (PPVO) after removal of orbital cavernous venous malformations (OCVMs).

Methods: Retrospective case-note and imaging review for patients undergoing excision of OCVMs, with estimation of odds-ratios (ORs) and relative risks (RRs) for visual loss in relation to the position of the mass, surgical approach, and patient factors.

Results: The 290 patients (179 female; 62%) presented at a mean age of 46.

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Importance: Ophthalmic manifestations occur in less than 5% of patients with human mpox (monkeypox), most commonly presenting with self-limiting conjunctivitis and keratitis. Cases with severe ophthalmic complication are uncommon.

Objective: To present a case of human mpox with sight-threatening necrotizing blepharoconjunctivitis.

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Purpose: To determine the incidence of clinically detectable chorio-retinal folds (CRFs) with orbital cavernous venous malformations (OCVMs) and their recovery.

Methods: Retrospective case-note and imaging review, with estimation of odds ratios in relation to the position and volume of the mass.

Results: Records for 402 patients were reviewed, 83 (21%) having CRFs.

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Purpose: The purpose of this study was to evaluate ophthalmic features and outcomes for patients who present with sinonasal mucoceles expanding into the orbit.

Patients And Methods: Retrospective chart review for patients seen in a specialist orbital clinic over 25 years, with a review of demographics, clinical characteristics, imaging features, and outcomes after treatment.

Results: Sixty patients (38 males; 63%) presented at a mean age of 51 years (range 3-89).

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