Canine Tooth Syndrome Due to Superior Oblique Myocysticercosis

Abstract

<h4>ABSTRACT</h4> <p>A 13-year-old boy had right periocular pain, upgaze vertical diplopia, and lid swelling. Right extorsion and hypodense cystic swelling in the right superior oblique involving the muscle and tendon behind the trochlea existed. Oral treatment was prescribed. MRI revealed a collapsed cyst. Ocular motility improved, but levoelevation diplopia persisted.</p> <p><cite>J Pediatr Ophthalmol Strabismus</cite> 2006;43:185-187.</p> <h4>AUTHORS</h4> <p>The authors are from the Strabismus Service, Guru Nanak Eye Centre, Maulana Azad Medical College, New Delhi-110002, India.</p> <p>Originally submitted January 30, 2005.</p> <p>Accepted for publication March 5, 2005.</p> <p>Address reprint requests to Dr. Amit Bhatia, C-140/IV, Ground Floor, Dayanand Colony, Lajpat Nagar IV, New Delhi-110024, India.</p>

Superior oblique muscle cysticercosis: importance of long-term assessment by a single observer

“…Involvement of the superior oblique muscle has been noted sparsely in the literature due to the rarity of the disease. [3][4][5]7 Evaluation of these cases involves routinely employed tests for cysticercosis to obtain the following findings: (i) because the cyst lies in the superior oblique muscle tendon, elevation deficit in adduction is a commonly encountered finding; (ii) ultrasonography is an indispensable tool for intraocular and extraocular cysticercosis evaluation; (iii) the cyst usually lies along the superonasal quadrant between the medial rectus muscle and the superior rectus muscle; and (iv) on CT/MRI, the cyst will lie along the medial orbital wall if it is pretrochlear or along the superonasal aspect of the globe in cases of posttrochlear location. However, treatment is similar to the rest of the extraocular muscles, with ultrasound every 2 weeks for the disappearance of the scolex and regression of the cyst with close follow-up.…”

“…7 A majority of the cases are successfully managed by medical management with the help of a combination of broad spectrum oral antihelminthics and oral steroids over a period of 4 weeks (Table 2). [3][4][5]7 Surgical intervention is rarely considered; however, there are reported cases of surgical excision of the cyst involving the superior oblique muscles, and subsequent histopathological examination confirmed the disease. 5 In another case series involving 7 cases and a case report with Superior Oblique muscle cysticercosis, the management was productive with medical management only in the absence of any additional complications/secondary surgical interventions.…”

Combined Brown syndrome and superior oblique palsy without a trochlear nerve: case report

“…Canine tooth syndrome is an ocular motility disorder characterized by limited elevation and depression on adduction [ 19 ]. Canine tooth syndrome is originally reported with a dog bite of the superior oblique trochlea region, but subsequently with head injury [ 20 ], superior oblique myocysticercosis [ 21 ], iatrogenic injury to the superior oblique tendon such as sinus surgery [ 22 ] or hook injury [ 23 ]. Our patient did not have any history of injury or infection, and proved the possibility of trochlear nerve agenesis as the etiology of canine tooth syndrome.…”

Orbital Cisticercosis. A Challenger for Neurologists, Ophthalmologists, Neuro-Opthalmologists, and General Practitioners

“…Trochlear nerve palsy is the most common cause of vertical diplopia then apart from periocular pain, and lid swelling, an upgaze vertical diplopia can be present. [231][232][233][234][235][236][237][238][239][240][241][242]. Superior rectus muscle cysticercosis should be considered in the differential diagnosis of acquired motility disorder.…”