Rare Diseases Symptoms Automatic Extraction

[MRI of musculature in myalgia--indications and image findings].

[focal myositis]

This paper deals with the question of the clinical circumstances in which MRI seems to be promising in patients with myalgia. 241 patients suffering from myalgic symptoms were examined by axial scans of the muscular system with T1w and STIR-sequences. All patients underwent a complete neuromuscular examination, which included an MRI guided muscle-biopsy of 203 patients. The images were retrospectively analysed as to the typical characteristics of differential diagnosis. In cases of idiopathic or bacterial/viral induced myositis, primary vasculitis, and rhabdomyolysis, edematous changes of the muscles could always be found. Abscesses were only found in bacterial myositis. In cases of poly- and dermatomyositis as well as inclusion-body-myositis, MRI showed a uniform distribution pattern with emphasis on the quadriceps muscles. In contrast to other neuromuscular diseases in bacterial induced myositis, focal myositis, and rhabdomyolysis a strong contrast agent enhancement was seen. All patients with myalgic syndromes without any other additional neuropathological findings and 86% of the patients suffering from polymyalgia rheumatica had normal MR-findings. MRI allows a correct exclusion of an inflammatory, tumorous, or rhabdomyolitic cause of a myalgia and leads to pathognomonic findings for these diseases. Diseases belonging to the group of endocrine, toxic, or metabolic myopathies might be normal in MRI. We believe that an indication for MRI is given when muscular pain is associated with additional neuromuscular symptoms, especially if an inflammatory origin of the myalgia is suspected or if a muscle biopsy is planned.

Diseases presenting "pain" symptom

  • achondroplasia
  • acute rheumatic fever
  • adrenal incidentaloma
  • adrenomyeloneuropathy
  • aniridia
  • aromatase deficiency
  • carcinoma of the gallbladder
  • cholangiocarcinoma
  • coats disease
  • congenital diaphragmatic hernia
  • congenital toxoplasmosis
  • cushing syndrome
  • cutaneous mastocytosis
  • cystinuria
  • dedifferentiated liposarcoma
  • dentin dysplasia
  • dracunculiasis
  • dystrophic epidermolysis bullosa
  • epidermolysis bullosa simplex
  • erdheim-chester disease
  • erythropoietic protoporphyria
  • esophageal adenocarcinoma
  • esophageal carcinoma
  • esophageal squamous cell carcinoma
  • fabry disease
  • familial mediterranean fever
  • focal myositis
  • hirschsprung disease
  • hodgkin lymphoma, classical
  • holt-oram syndrome
  • junctional epidermolysis bullosa
  • kabuki syndrome
  • kindler syndrome
  • lamellar ichthyosis
  • liposarcoma
  • locked-in syndrome
  • lymphangioleiomyomatosis
  • malignant atrophic papulosis
  • neuralgic amyotrophy
  • oligodontia
  • oral submucous fibrosis
  • papillon-lefèvre syndrome
  • phenylketonuria
  • pleomorphic liposarcoma
  • primary hyperoxaluria type 1
  • proteus syndrome
  • pyomyositis
  • scrub typhus
  • sneddon syndrome
  • systemic capillary leak syndrome
  • thoracic outlet syndrome
  • trochlear dysplasia
  • typhoid
  • von hippel-lindau disease
  • waldenström macroglobulinemia
  • well-differentiated liposarcoma
  • wolf-hirschhorn syndrome

This symptom has already been validated