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  • Title: [Paralysis of digestive tract with lesions of myenteric plexuses. A new paraneoplastic syndrome (author's transl)].
    Author: Lhermitte F, Gray F, Lyon-Caen O, Pertuiset BF, Bernard P.
    Journal: Rev Neurol (Paris); 1980; 136(12):825-36. PubMed ID: 7291842.
    Abstract:
    A 67 years old man was admitted on July 1979 for nausea, dysphagia and rectal pain. At age 64 he had undergone radiotherapy on the lower lip for an epidermoid carcinoma. He remained then healthy. His medical history was negative with the exception of chronic bronchitis. He had never been exposed to toxic agents or drugs and had never left Europe. A few days after admission he suffered acute intestinal obstruction but at laparostomy no etiology was found. At the same time the patient complained of pain in all four limbs and he was found to have diffuse wasting of muscles, areflexia and distal sensory loss. No sign of dysautonomia was present. Physical examination was negative with the exception of a cervical lymphadenopathy. The lymph node biopsy showed an undifferentiated metastatic carcinoma. Negative investigations included: blood cells count; serum ionogram and immunoelectrophoresis; thyroid function tests; serological test for Chagas' disease. The following abnormalities were found: ESR: 55-105; CSF protein: 145 mg/100 ml and 1 cell mm3; whole blood folic acid: 1,7 mg/ml; Hbs antigen was present in blood; EMG showed evidence of denervation but motor conduction velocities were normal. By September the patient's weakness had increased and complete intestinal obstruction persisted. At oesophageal, gastric and duodenal fibroscopy no contraction was visible, and biopsies were negative. The patient died of peritonitis on October 5th, 1979. At necropsy peritonitis secondary to multiple perforation of the large bowel was found. No recurrence of the lip carcinoma or metastase or evidence of a primary carcinoma was found. Light microscopy showed no evidence of amyloidosis or scleroderma. Examination of the alimentary tract showed abnormalities restricted to the myenteric plexuses which varied from one level to another. In the small bowel there was hyperplasia of the smooth muscle and the myenteric plexuses were enlarged by marked proliferation of Schwann cells. Severe neuronal loss and nodules of Nageotte were also noted. Schwann cells proliferation was less marked in the stomach and large bowel. Lympho-histiocytic infiltration strictly confined to the region of the myenteric plexuses was present in oesophagus, stomach, large bowel and rectum. Mild chronic inflammatory lesions were also found in anterior and posterior spinal roots and semi-lunar ganglia. The striking feature of this case is the association of an undifferentiated carcinoma and a polyradiculoneuritis with a complete alimentary tract palsy of rapid onset, secondary to lesions restricted to the myenteric plexuses. The low folate level was insufficient to explain the neuropathy. Investigations showed no evidence of the usual causes of intestinal pseudo-obstruction: muscular, dysautonomic, toxic, plexic (idiopathic, familial, inflammatory), Chagas' disease). The clinical course, the pathological pictures of the alimentary tract and spinal roots and the association with a carcinoma suggest that our case may represent a paraneoplastic syndrome...
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