‘Tingling Throat Syndrome’: Doctors found 1.5 inch-long worm
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A 25-year-old woman presented with a 5-day history of left pharyngeal pain and irritation after consuming assorted sashimi.

Physical examination identified a black moving worm which was 38 mm long, 1 mm wide in the left palatine tonsil.

Her blood test results were normal. Symptoms rapidly improved after removing the worm using tweezers.

DNA PCR and the fact that the worm was in exuviation revealed this worm was a fourth-stage larva of Pseudoterranova azarasi.

Pseudoterranova is an uncommon nematode of the family Anisakidae. It infects dominantly in the stomach after consuming third-stage larvae in raw or undercooked marine fish.

Pseudoterranova infection is diagnosed based on clinical course and morphological features because anti–Anisakis sp. antibody is insensitive and PCR is not commercially available.

There is limited evidence of pharmacological treatment; direct removal is the most effective.

Although oropharyngeal infection is rare, this infection is known to cause “tingling throat syndrome” and cough and should be considered a differential diagnosis of the oropharyngeal parasitoid.

Source: http://www.ajtmh.org/content/journals/10.4269/ajtmh.20-0175;jsessi
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