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present a 40 year old woman who suffering from chronic neck pain and dysphagia
and shortness of breath. Lateral cervical x-ray and Cervical CT scan showed a
large calcified anterior ligamentous mass in anterior part of body of C4, C5
and C6 vertebrae causing partial obstruction of esophagus. This patient was
underwent surgery and the anterior neck calcification was removed and after a
few days symptoms of dysphagia and dyspnea were resolved.
INTRODUCTION
Diffuse Idiopathic Skeletal Hyperostosis
(DISH) is a rare systemic disorder that occurs in less than 10% of people over
age of 50 and is very rare under age of 50 years [1,2] and male to female ratio
is 2 to 1 [2,3]. It is characterized by continuous ossification of ligaments
and enthuses [2]. And thoracic spine is more involved than the cervical and
lumbar spine [3]. The classification most commonly used for DISH today was
proposed by Resnick and Niwayama [4-6]. DISH disease may be asymptomatic or
with symptoms such as pain, limited range of spinal movements, dysphagia and
increased susceptibility to unstable spinal fractures [7]. DISH tends to occur
more in men and in those with diabetes, obesity, metabolic syndrome, gout,
hypertension and advanced age [4,8-10]. Various causes have been described for
DISH, including genetic causes such as Col6A1 gene defect [11] or non-genetic
causes such as hypervitaminosis A can be causes of this condition [4,8-10]. DISH
is a metabolic bone disease [11]. And it seems that IGF plays a role in the
expansion of the DISH, Diabetes mellitus can also be an independent risk factor
for DISH development [12-14]. Correlation between DISH and cardiovascular
disease has also been reported [13]. DISH is a disease of obese and diabetic
old people [13].
Cervical spine involvement and proliferative
bone changes can lead to obstruction of respiratory tract and dysphagia [2].
CASE REPORT
The patient was a 40 year old woman suffering from chronic neck pain and dysphagia and shortness of breath. She was under investigation and imaging to diagnose digestive and respiratory diseases and pharyngeal disease that was healthy. But in the lateral cervical x-ray, a bone mass adhered to the anterior cervical vertebra was observed (Figure 1). This patient was not obese (BMI=18.5) had no history of any rheumatoid, cardiovascular and metabolic disease and there was no evidence of disease in the studies. She did not have any neurological and motor disorder and sphincteric disorder. In the lateral cervical x-ray, a large calcified anterior ligamentous mass was observed in anterior part of body of C4, C5 and C6 vertebrae (Figure 1), causing partial obstruction of esophagus. In cervical MRI, in T1 view, isointense to hyperintense mass were observed on the anterior C4, C5, C6 and in T2 view, heterogeneous and isointense to hypointense mass was observed in the anterior cervical vertebrae (Figure 2). In thoracic spine and lumbosacral spine x-ray, bone mass was seen in anterior lumbar vertebrae (L2 and L3) (Figure 3), which had not caused any symptoms in the patient. This patient was underwent surgery and the anterior neck calcification was removed (Figure 4) and after a few days symptoms of dysphagia and dyspnea were resolved.
DISH is a rare disease and it is more common
in men [5] and is more than 50 years old [2]. Patients with DISH suffer from
obesity and one of causes of this is impaired glucose tolerance [3,6,7]. The
presence of cardiovascular disease is a feature of DISH [12,13], other diseases
that can be seen with DISH include gout and hypertension [5]. All researches
have argued that DISH is a metabolic disease. The patient surveyed in this
report was a 40 year old, lean woman who had no evidence of metabolic and
cardiovascular disease that here biochemical tests were normal and there was no
metabolic, rheumatologic and cardiac disease in the examinations and studies.
Depending on the symptoms and clinical features of DISH disease, this patient
is different from all patients with DISH previously described. DISH Disease is
common in over 50 year old men with obesity and metabolic diseases, while this
patient was a 40 year old woman with no history and symptoms of a metabolic
disease, with a large calcified anterior ligamentous mass at the C4-C5-C6 level
with a compressive effect On the esophagus and the upper respiratory tract.
CONCLUSION
In patients with chronic dysphagia and chronic
dyspnea, after examining digestive and respiratory systems, DISH, although
rare, is a very important differential diagnosis for these symptoms and should
be considered even if they do not have systemic DISH symptoms.
1. Tsukahara
S, Miyazawa N, Akagawa H, Forejtova S, Pavelka K, et al. (2005) COL6A1, the
candidate gene for ossification of the posterior longitudinal ligament, is
associated with diffuse idiopathic skeletal hyperostosis in Japanese. Spine
(Phila Pa 1976) 30: 2321-2324.
2. Kortyna
R (2017) Diffuse idiopathic skeletal hyperostosis: A review. JBJS JOPA 5: e27.
3. Forestier
J, Rotes-Querol J (1950) Senile ankylosing hyperostosis of the spine. Ann Rheum
Dis 9: 321-330.
4. Resnick
D, Niwayama G (1976) Radiographic and pathologic features of spinal involvement
in diffuse idiopathic skeletal hyperostosis (DISH). Radiology 119: 559-568.
5. Littlejohn
GO (1985) Insulin and new bone formation in diffuse idiopathic skeletal
hyperostosis. Clin Rheumatol 4: 294-300.
6. Vezyroglou
G, Mitropoulos A, Antoniadis C (1996) A metabolic syndrome in diffuse
idiopathic skeletal hyperostosis. A controlled study. J Rheumatol 23: 672-676.
7. Miyazawa
N, Akiyama I (2006) Diffuse idiopathic skeletal hyperostosis associated with
risk factors for stroke: A case-control study. Spine 31: E225-E229.
8. Utsinger
PD, Resnick D, Shapiro R (1976) Diffuse skeletal abnormalities in Forestier
disease. Arch Intern Med 136: 763-768.
9. Resnick
D, Niwayama G (1988) Diagnosis of bone and joint disorders. 2nd Edn.
Philadelphia: WB Saunders, pp: 1563-1615.
10. Westerveld
LA, Verlaan JJ, Oner FC (2009) Spinal fractures in patients with ankylosing
spinal disorders: A systematic review of the literature on treatment,
neurological status and complications. Eur Spine J 18: 145-156.
11. Mader
R, Buskila D, Verlaan JJ, Atzeni F, Olivieri I, et al. (2013) Developing new
classification criteria for diffuse idiopathic skeletal hyperostosis: Back to
square one. Rheumatology 52: 326-330.
12. Mader
R, Lavi I (2009) Diabetes mellitus and hypertension as risk factors for early
diffuse idiopathic skeletal hyperostosis (DISH). Osteoarthritis Cartilage 17: 825-828.
13. Mader
R, Novofestovski I, Adawi M, Lavi I (2009) Metabolic syndrome and
cardiovascular risk in patients with diffuse idiopathic skeletal hyperostosis.
Semin Arthritis Rheum 38: 361-365.
14. Slonimsky
E, Leibushor N, Aharoni D, Lidar M, Eshed I, et al. (2016) Pelvic enthesopathy
on CT is significantly more prevalent in patients with diffuse idiopathic
skeletal hyperostosis (DISH) compared with matched control patients. Clin
Rheumatol 35: 1823-1827.
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