- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- 8.1 Pathogenic microorganisms and the host
- 8.2 The patient with suspected infection
- 8.3 Immunization
- 8.4 Travel and expedition medicine
- 8.5 Viruses
- 8.6 Bacteria
- 8.7 Fungi (mycoses)
- 8.8 Protozoa
- 8.9 Nematodes (roundworms)
- 8.10 Cestodes (tapeworms)
- 8.11 Trematodes (flukes)
- 8.12 Nonvenomous arthropods
- 8.13 Pentastomiasis (porocephalosis, linguatulosis/linguatuliasis, or tongue worm infection)
- Section 9 Sexually transmitted diseases
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine
(p. 1582) Pentastomiasis (porocephalosis, linguatulosis/linguatuliasis, or tongue worm infection)
- Chapter:
- (p. 1582) Pentastomiasis (porocephalosis, linguatulosis/linguatuliasis, or tongue worm infection)
- Author(s):
David A. Warrell
- DOI:
- 10.1093/med/9780198746690.003.0187
Pentastomida are dioecious, obligate parasites that are currently grouped in subclass Branchiura (fish lice and cycloids) of class Maxillopoda, subphylum Crustacea, phylum Arthropoda. Common names are ‘pentastomes’ (referring to two pairs of hooks above the mouth that give the impression of five stomata) or ‘tongue worms’ (alluding to the tongue-like appearance of some, such as adult Linguatula). Adult pentastomes inhabit the upper respiratory tracts of their end hosts (vertebrates such as reptiles, fish, birds, and mammals) where they feed on blood and other tissues. Their larvae infect internal organs of vertebrate or arthropod intermediate hosts. Pentastomes appear to have coevolved with other maxillopodan/branchiuran parasites and their vertebrate hosts. There are about 100 living species in the orders Cephalobaenida (e.g. genus Raillietiella) and Porocephalida (e.g. genera Linguatula, Armillifer, Porocephalus, Leiperia, and Sebekia).
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- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- 8.1 Pathogenic microorganisms and the host
- 8.2 The patient with suspected infection
- 8.3 Immunization
- 8.4 Travel and expedition medicine
- 8.5 Viruses
- 8.6 Bacteria
- 8.7 Fungi (mycoses)
- 8.8 Protozoa
- 8.9 Nematodes (roundworms)
- 8.10 Cestodes (tapeworms)
- 8.11 Trematodes (flukes)
- 8.12 Nonvenomous arthropods
- 8.13 Pentastomiasis (porocephalosis, linguatulosis/linguatuliasis, or tongue worm infection)
- Section 9 Sexually transmitted diseases
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine