Case reports about an overlooked cause of neck pain: calcific tendinitis of the longus colli: Case reports

Soft Tissue Calcifications in the Head and Neck Region

This article provides an overview of the soft tissue calcifications in the head and neck region as noted on dental imaging, with particular focus on the radiographic appearance of these entities..

Calcific Tendinopathy Atypically Located Outside the Rotator Cuff: A Systematic Review

BACKGROUND AND PURPOSE

Calcific tendinopathy is a common cause of painful shoulder easily identified with ultrasound or conventional radiography. Although the rotator cuff is by far the most common location of the disease and diagnostic or treatment strategies are well known in clinical practice, a lack of awareness characterizes the assessment of the other sites affected by this condition; consequently, the risk of underestimating the prevalence of atypical non-rotator cuff calcific tendinopathy is high. This may lead to expensive or invasive diagnostic exams and/or inappropriate treatment, whereas the condition is usually self-limited. The present study aims at analysing the frequency of calcific tendinitis in uncommon sites, in order to fill a gap in knowledge and awareness regarding non-rotator cuff calcific tendinopathy, thus avoiding improper clinical choices and helping to identify this condition.

METHODS

This systematic review was conducted following the PRISMA guidelines. We performed a search on Pubmed and Scopus databases concerning atypically sited extra-rotator cuff calcific tendinopathy published since 1950.

RESULTS

The research found a total of 267 articles and 793 non-rotator cuff cases of calcific tendinopathy registered. The spine (213 – 26.86%), foot and ankle (191 – 23.95%), and hip (175 – 22.06%) appeared to be the most common sites of calcific tendinopathy after the rotator cuff, whereas the longus colli C1-C2 (204 – 25.72%), Achilles (173 – 21.81%), and rectus femori (61 – 7.69%) were the most commonly affected tendons.

CONCLUSION

A better awareness of this condition in several different sites of the body than the rotator cuff could avoid unnecessary choices both in assessment and treatment.

[Retropharyngeal calcific tendinitis-An underestimated cause of acute neck pain]

BACKGROUND

Retropharyngeal calcific tendinitis is an aseptic inflammation of the longus cervicis muscle. This rare acute pain disorder of the neck region is a prognostically benign condition compared to neurological or otorhinolaryngological differential diagnoses.

OBJECTIVE

To capture the clinical appearance, diagnostics, treatment and course of this rare disease.

MATERIAL AND METHODS

In this retrospective monocentric observational study, demographic, clinical, paraclinical as well as treatment and follow-up data of all inpatients with a diagnosis of retropharyngeal calcific tendinitis admitted to the Diako Hospital Mannheim in the years 2018 to 2021 were analyzed.

RESULTS

This study included four female and one male patient with an age between 36 years and 77 years. Severe neck pain with restriction of cervical spine rotation was the leading clinical appearance, in four out of five patients there was a painful swallowing disorder. Inflammatory markers were elevated in four patients. Characteristic MRI or CT imaging alterations of the cervical spine confirmed the diagnosis. The symptoms resolved within 4-14 days after treatment with nonsteroidal anti-inflammatory drugs (NSAID) and four patients additionally received glucocorticoids. No recurrences were observed during the follow-up period of 5-30 months.

CONCLUSION

The good prognosis of this rare disease is reflected by the rapid remission of symptoms under NSAIDs and glucocorticoids and by the absence of recurrences during follow-up. CT or MRI imaging is required to rule out differential diagnoses, and to confirm the characteristic imaging alterations of retropharyngeal calcific tendinitis. Additionally, cerebrospinal fluid puncture and otorhinolaryngological assessment may be necessary in some cases.

Two rare diseases, acute calcific retropharyngeal tendinitis, and crowned dens syndrome, mimicking meningitis: A case report

We report two rare cases. One involved acute calcific retropharyngeal tendinitis, an inflammatory condition of the longus colli tendon triggered by the deposition of calcium hydroxyapatite crystals. The other involved crowned dens syndrome, caused by pseudogout of the atlantoaxial junction following deposition of calcium pyrophosphate dehydrate or calcium hydroxyapatite. Although these two diseases involve different mechanisms, the common symptoms of neck pain and fever resemble those of meningitis. Accurate diagnosis can thus be difficult without background knowledge of these conditions. Cerebrospinal fluid examination and cervical computed tomography are useful for distinguishing these pathologies from meningitis.

Longus colli tendinitis: acute neck pain with retropharyngeal swelling

Longus colli tendinitis (LCT) has been described in several case reports, and is likely underdiagnosed due to its non-specific symptoms and self-limiting nature. It usually presents as acute neck pain with retropharyngeal swelling seen on nasoendoscopy and imaging studies. This may lead to unnecessary invasive interventions if physicians are unaware of the disease course. We discuss a case of LCT in a young woman who was treated at our institution, with recommendations on how to identify and treat such cases accurately without overtreatment.

[Retropharyngeal tendinitis : Rare differential diagnosis of acute neck pain]

Atraumatische Nackenschmerzen sind ein häufiger Vorstellungsgrund für Patienten in der Notaufnahme. Für die behandelnden Ärzte ist dabei der Ausschluss möglicherweise lebensbedrohlicher Erkrankungen, wie Spondylodiszitis, retropharyngealer Abszess oder Meningitis, oft eine große Herausforderung. In dieser Kasuistik wird der seltene Fall der retropharyngealen Tendinitis vorgestellt, einer wenig bekannten und dadurch sicherlich unterdiagnostizierten Entität. Sie ist charakterisiert durch einen stark reduzierten Bewegungsumfang der HWS, erhöhte Infektparameter und einen pathognomonischen MRT-Befund.

Zusätzlich zur Fallpräsentation soll im Rahmen eines kurzen Reviews die Charakteristik der retropharyngealen Tendinitis noch genauer dargestellt werden. So ist es das Ziel dieser Arbeit, die behandelnden Ärzte für dieses Krankheitsbild zu sensibilisieren, um in Zukunft falsche bzw. unnötige Therapien zu vermeiden.

Acute longus colli tendinitis and otolaryngology

INTRODUCTION

Acute longus colli tendinitis is caused by calcium hydroxyapatite deposition in the tendon of the longus colli muscle with subsequent inflammation. The calcifications are commonly located at the superior oblique portion at the level of the C1-C2 vertebrae. The typical clinical presentation consists of acute neck pain, odynophagia, and painful limitation of neck range of motion.

OBJECTIVES

We will describe this disease with three that cases presented to our institution and compare the findings on imaging studies.

METHODS

We retrospectively reviewed the clinical data, radiological features, and laboratory reports of three patients diagnosed with acute longus colli tendinitis. Computed tomography and plain radiographs were reviewed and compared by a single radiologist. A contemporary review of the literature was conducted using PubMed (Medline), Embase, and Cochrane library databases.

RESULTS

Computed tomography showed greater sensitivity for the detection of the pathognomonic calcification than plain radiographs and facilitated the exclusion of other more severe conditions by following a systematic interpretation composed of five key elements. Plain radiographs showed non-specific signs of prevertebral soft tissue swelling and a decreased cervical lordotic curve. However, no calcification was identified on plain radiographs. The literature review revealed 153 articles containing 372 cases. Surgical or invasive procedures were mentioned in 13.7% of publications and were performed in 28 patients.

CONCLUSIONS

Acute longus colli tendinitis can mimic the clinical presentation of more severe conditions that the otolaryngologist may be required to evaluate, such as infectious, traumatic, and neoplastic diseases. Knowledge of this entity, with its pathognomonic imaging findings, can prevent misdirected medical therapy and unnecessary invasive procedures.

Severe neck pain and odynophagia secondary to acute calcific longus colli tendinitis: a case report

BACKGROUND

Acute calcific longus colli tendinitis is a rare, noninfectious inflammatory condition caused by the deposition of calcium crystals. The condition is self-limiting, yet commonly misdiagnosed. Here we report a case of a patient with severe neck pain and odynophagia initially misdiagnosed as a retropharyngeal abscess before establishing the correct diagnosis of acute calcific longus colli tendinitis.

CASE PRESENTATION

A 60-year-old Caucasian man presented to an outside emergency department with a 5-day history of neck pain and odynophagia. The neck pain was severe and aggravated by movement. Laboratory evaluation revealed leukocytosis and elevated C-reactive protein. Computed tomography of his neck soft tissues was initially interpreted as a retropharyngeal abscess. Antibiotic therapy with piperacillin/tazobactam was initiated, and the patient was transferred to our tertiary care center for further evaluation and treatment. On physical examination, the patient's neck range of motion was significantly diminished, and bilateral neck tenderness was present. An otolaryngologist performed an examination with laryngoscopy, the result of which was unremarkable. A radiologist at our facility interpreted his outside magnetic resonance imaging as showing "calcification in the prevertebral muscles at C1-C2, inflammation with edema of the prevertebral muscles, and retropharyngeal space edema/effusion," consistent with acute calcific longus colli tendinitis. His antibiotics were discontinued, and he was started on intravenous ketorolac. He had significant improvement in his neck range of motion, and his pain diminished greatly. He was discharged on a 10-day course of diclofenac (50 mg three times daily). At 1-week follow-up, the patient was doing well; he had returned to work, and his pain was well controlled.

CONCLUSIONS

This case report details the presentation, characteristic radiographic findings, and management of a patient with an extremely rare condition of neck pain and odynophagia that could be treated with nonsteroidal anti-inflammatory drugs.

Non-rotator cuff calcific tendinopathy: ultrasonographic diagnosis and treatment

Calcific tendinopathy is a condition that is related to the deposition of calcium, mostly hydroxyapatite crystals, within the tendons. The shoulder and the hip are commonly affected joints, but calcific tendinopathy may occur in any tendon of the body. While there is an extensive literature on the ultrasound diagnosis of calcific tendinopathy of the shoulder, there are only sporadic reports on other sites. This review combines the experience of our centers and a thorough analysis of the literature from the last 45 years (1972-2017) in order to highlight the localizations beyond the rotator cuff, their ultrasound characteristics and therapeutic possibilities.

Acute Calcific Tendinitis of the Longus Colli: Not All Retropharyngeal Fluid is an Abscess

OBJECTIVE

This report aimed to present a case of acute calcific tendinitis of the longus colli muscle as an uncommon cause of neck pain and dysphagia and is often misdiagnosed as a retropharyngeal abscess.

METHODS

Case report and literature review.

RESULTS

Acute calcific tendinitis is often misdiagnosed as a retropharyngeal abscess; however, it is distinguished from the latter based on patient history and unique radiologic findings. History, examination, and laboratory findings do not suggest an infectious etiology, and radiographic findings include a non-rim-enhancing fluid collection with or without calcifications anterior to the upper cervical spine.

CONCLUSION

Unlike retropharyngeal abscess, acute calcific tendinitis is managed conservatively. When consulted for a possible retropharyngeal abscess, the otolaryngologist should avoid anchoring bias by independently obtaining a detailed history and examination and personally reviewing radiologic images to avoid unnecessary intervention.

Acute Calcific Retropharyngeal Tendinitis with Eggshell-like Calcification: Case Report and Literature Review on Time-course Changes in Imaging Findings

Acute calcific retropharyngeal tendinitis is a rare disease, and few studies have reported the radiological findings of its time-course in detail. These radiological findings vary according to the calcific stage. We report a case of acute calcific retropharyngeal tendinitis with eggshell-like calcification detected on follow-up computed tomography (CT). We also review pertinent literature on calcific retropharyngeal tendinitis, with a focus on time-course changes in imaging findings.

A 54-year-old Japanese woman presented with acute severe neck pain. She also had a limited range of motion in the rotation of her neck and moderate pain and discomfort during swallowing. Plain radiographs of the cervical spine showed no apparent abnormality. CT revealed massive retropharyngeal calcification in front of the C1-C2 vertebrae. The patient was diagnosed with acute calcific retropharyngeal tendinitis and treated with a soft collar and non-steroidal anti-inflammatory drugs. Two weeks later, the neck pain and dysphagia improved. At the one-month follow-up, CT showed residual marginal calcification, which was diminishing in size, suggesting eggshell-like calcification.

We believe that although the eggshell calcification appearance is extremely rare, it is important to note this atypical presentation of acute calcific retropharyngeal tendinitis.

Longus Colli Tendinitis: The Lost Twin of Retropharyngeal Abscess

Longus colli calcific tendinitis is a rare condition which mimics the alarming condition, retropharyngeal abscess. Clinically, the patient presents which acute cervical pain, dysphagia and fever. Since this condition is little known to otorhinolaryngologists, it is usually misdiagnosed as a retropharyngeal abscess which is more common. This is a case report of a 52 year old female who presented with complaints of neck pain and difficulty in swallowing along with fever which were acute in onset. Clinically, the symptoms overlapped with those of a retropharyngeal abscess. The diagnosis was confirmed as longus colli calcific tendinitis. Longus colli calcific tendinitis is a rare entity which can be diagnosed solely based on radiological investigation. The knowledge of this disease is crucial to otorhinolaryngolists as it avoids over treatment, unwarranted chance surgical exposure.