Dermoid Sinus in the Rhodesian Ridgeback

Mann, Giovanni E.; Stratton, James H.

doi:10.1111/j.1748-5827.1966.tb04388.x

Cited by 50 publications

(67 citation statements)

References 2 publications

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“…There are many reports in Rhodesian ridgebacks (Mann & Stratton 1996) but a dermoid sinus has been reported only once previously in a shih‐tzu (Selcer and others 1984). Reports have shown that neurological signs with dermoid sinuses are most often caused by infection of the sinus with dissemination to the spinal cord or brain (that is, myelitis, encephalitis).…”

mentioning

confidence: 99%

Dermoid sinus and bone defects of the fifth thoracic vertebrae in a shih‐tzu

Colón¹,

Maritato²,

Mauterer³

2007

J of Small Animal Practice

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LETTERSDermoid sinus and bone defects of the fifth thoracic vertebrae in a shih-tzu MADAMRecently, we encountered a five year old, neutered, male shihtzu presented with an acute onset of ataxia of the pelvic limbs after a tuft of hair, protruding from a dermoid sinus on the dorsal midline of the cranial thoracic region, had been pulled by the groomer. Radiographs showed a defect of the spinous process and the vertebral bodyof T5. The spinous process was found to be separated into two sections forming an opening on the dorsal aspect of the vertebral body. Myelography showed that the dermoid sinus was tethered to the spinal cord, classified as a type IV dermoid sinus. A dorsal approach was performed to remove the dermoid sinus. The sinus was found to exist between a bone defect of the spinous process and the vertebral body of T5. A dorsal laminectomy was also performed at the level of T5. One month postoperatively, the dog was still mildly ataxic with subtle conscious propioceptive deficits in the pelvic limbs. At a telephone interview two months later, the owners reported great improvement in the dog, and no noticeable ataxia.There are many reports in Rhodesian ridgebacks (Mann & Stratton 1996) but a dermoid sinus has been reported only once previously in a shih-tzu (Selcer and others 1984). Reports have shown that neurological signs with dermoid sinuses are most often caused by infection of the sinus with dissemination to the spinal cord or brain (that is, myelitis, encephalitis). We report this case to encourage clinicians to consider this type of trauma to the spinal cord when assessing an animal with a dermoid sinus and neurological signs. Clinicians should educate their clients in exercising caution with pets with a dermoid sinus.

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mentioning

confidence: 99%

Dermoid sinus and bone defects of the fifth thoracic vertebrae in a shih‐tzu

Colón¹,

Maritato²,

Mauterer³

2007

J of Small Animal Practice

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“…In the veterinary literature, there are only two other studies that described true cutaneous dermoid cysts (DS type V) in dogs [11,26] and neither of them were of subtype b. Our case is also unusual for its presentation on the head, for the breed affected and the multiplicity of the lesions, a pattern rarely described in dogs or humans [6,14,16,19]. DS is reported as a congenital or acquired lesion [3,6,41].…”

Section: Discussionmentioning

confidence: 65%

“…However, some authors recently proposed that a distinction should be made in dogs and cats, as it is done in humans, between dermoid cysts and DSes based on the presence in the latter of a connection to the skin [4,27,56,57]. Similarly, other authors identified different types of DS in dogs and considered dermoid cyst as a specific type of DS lacking an opening on the skin [19,26,35,55]. Based on the extent of penetration into the subcutaneous tissue, four types of DSes were initially recognized in veterinary medicine: type I extends ventrally as a cylindrical sac attached to the supraspinous ligament, type II consists of a sac-like portion that is more superficial than that of type I and is attached to the ligament by a fibrous band, type III is made up of a superficial sac with no attachment to the supraspinous ligament and type IV extends to the spinal canal and is attached to the dura mater [19].…”

Section: Discussionmentioning

confidence: 99%

Multiple dermoid sinuses of type Vb and IIIb on the head of a Saint Bernard dog

et al. 2013

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Dermoid sinus, a congenital malformation of neural tube development, has been reported in humans and several animal species including dogs. It is typically found in the dorsal midline and commonly occurs in the Rhodesian Ridgeback breed. A case of multiple dermoid sinuses in the fronto-occipital region is described. An 11-month-old, intact female Saint Bernard dog was presented with a 2 day history of discharge from a large irregular subcutaneous mass in the fronto-occipital region. The dog was otherwise healthy. The dog had two circular skin lesions (approximately 4 × 4 and 4 × 2 cm diameter) surrounded by multiple irregular elevated masses. The masses had multiple small openings on the skin surface with tufts of hair protruding from the apertures. The masses were surgically removed, and the diagnosis of multiple dermoid sinuses was confirmed by histological examination. Histopathological examination showed multiple, variably sized, spherical to tubular cysts expanding the dermis and subcutis. Cysts were filled with hair shafts and lamellar keratin and were lined by a stratified squamous epithelium. Sebaceous and apocrine gland adnexal structures were also observed. To the best of our knowledge, this is the first reported case of multiple dermoid sinuses of two different types in the head of a Saint Bernard dog.

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“…Dermoid sinus is generally benign: it occurs at the dorsal midline and connects the skin to deeper spinal structures, including the vertebral canal [1-4]. Spinal dermoid sinus occur as single or multiple lesions in the cervical, cranial thoracic, thoracolumbar, lumbosacral, and sacrococcygeal regions [5-9].…”

Section: Introductionmentioning

confidence: 99%

“…There are six types of dermoid sinus described in veterinary medicine categorized by the relationship between the sinus and supraspinous ligament, and the presence of a skin orifice (Figure 1) [4,6,7,10]. Type I dermoid sinus is a tubular sac extending from the skin to the supraspinous or nuchal ligament.…”

Section: Introductionmentioning

confidence: 99%

Spinal dermoid sinus in a Dachshund with vertebral and thoracic limb malformations

et al. 2014

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BackgroundDermoid sinus is an uncommon epithelial-lined fistula that may be associated with vertebral malformations. In humans, Klippel-Feil syndrome (KFS) is a rare condition characterized by congenital cervical vertebral fusion and may be associated with other developmental defects, including dermoid sinus. The present case report describes an adult Dachshund with cervical and cranial thoracic vertebral malformations as well as thoracic limb malformations resembling KFS with a concurrent type IV dermoid sinus.Case presentationA 1.5 year-old Dachshund with congenital thoracic limbs deformities and cervical-thoracic vertebral malformations presented with cervical hyperesthesia, rigidity of the cervical musculature and tetraparesis. Neurologic, radiographic, and computed tomography (CT) (2D, 3D, CT fistulography) examinations revealed skeletal anomalies, a dermoid sinus in the cranial thoracic region and epidural gas within the vertebral canal. Surgical resection and histopathological evaluation of the sinus tract were performed and confirmed a type IV dermoid sinus. The clinical signs progressively recovered postoperatively, and no recurrent signs were observed after 6 months of follow-up.ConclusionsCervical vertebral malformations associated with limbs anomalies have not been reported in dogs and may represent a condition similar to KFS in humans. KFS can occur concurrently with other congenital conditions including dermoid sinus and should be included among the complex congenital anomalies described in dogs.

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Dermoid Sinus in the Rhodesian Ridgeback

Cited by 50 publications

References 2 publications

Dermoid sinus and bone defects of the fifth thoracic vertebrae in a shih‐tzu

Dermoid sinus and bone defects of the fifth thoracic vertebrae in a shih‐tzu

Multiple dermoid sinuses of type Vb and IIIb on the head of a Saint Bernard dog

Spinal dermoid sinus in a Dachshund with vertebral and thoracic limb malformations

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