By light and scanning electron microscopy, the morphologies of Korean pubic louse(Phthirus pubis) were described and measured. Especially, electron microscopic structures of palpus, tuft organ, sensilla basiconicum and palpal lobe were reviewed in detail. The variations were obserbed in the number of dorsal setae and the setae of membranous processes of abdomen. And also, the importance of public health and epidemiological aspects was discussed.
Abdomen ; Microscopy, Electron, Scanning* ; Phthiraptera* ; Phthirus* ; Public Health ; Sensilla

Two unusual cases (5yr. old girl and boy) of seborrhoic marginal blepharitis caused by infestation of pubiclice (Phthirus pubis) are described. Many pubic lice and their ova clung to the cilia of upper lid margin were identified as the cause of disease. Prompt improvement of marginal blepharitis limited only on upper lids of both eyes was brought by the removal of lice and epilation of cilia which there are many ova adhered on. These two cases have no interrelationship in possible contact or source. Their fainily history and envirvmnental studies showed in negative resuhs. Careful slit-lamp examination would be neccessary as a routine procedure in blepharitis cases.
Blepharitis* ; Cilia ; Female ; Hair Removal ; Humans ; Ovum ; Phthiraptera*

The pubic louse, Pthirus pubis is a blood-sucking ectoparasite adapted to hold onto pubic, axillary and body hairs. It is usually confined to the pubic and inguinal region. However, it may also rarely involve the scalp and eyelashes. We report two cases of phthiriasis occurring on unusual sites, the first case occurring on the scalp of a 5 month-old male infant, and the second case on the eyelashes of a 49-year-old fe-male.
Eyelashes ; Hair ; Humans ; Infant ; Male ; Middle Aged ; Phthiraptera ; Scalp

Pthiriasis palpebrarum is a rare disease in which crab lice infest the eyelashes. It can cause pruritic lid margins, and it is difficult to diagnose and treat. We diagnosed and managed a case of pthiriasis palpebrarum in the right upper eyelid of a 35 month-old male child. We removed the lice and nits by pulling with fine forceps using dermoscopy. After treatment, all lice and nits had been eradicated without recurrence. We suggest that this is an effective, safe method for diagnosis and treatment of pthiriasis palpebrarum.
Child ; Dermoscopy ; Eyelashes ; Eyelids ; Humans ; Lice Infestations ; Male ; Pediculus ; Phthiraptera ; Phthirus ; Rare Diseases ; Recurrence ; Surgical Instruments

Chewing lice (Phthiraptera) that parasitize the globally threatened swan goose Anser cygnoides have been long recognized since the early 19th century, but those records were probably biased towards sampling of captive or domestic geese due to the small population size and limited distribution of its wild hosts. To better understand the lice species parasitizing swan geese that are endemic to East Asia, we collected chewing lice from 14 wild geese caught at 3 lakes in northeastern Mongolia. The lice were morphologically identified as 16 Trinoton anserinum (Fabricius, 1805), 11 Ornithobius domesticus Arnold, 2005, and 1 Anaticola anseris (Linnaeus, 1758). These species are known from other geese and swans, but all of them were new to the swan goose. This result also indicates no overlap in lice species between older records and our findings from wild birds. Thus, ectoparasites collected from domestic or captive animals may provide biased information on the occurrence, prevalence, host selection, and host-ectoparasite interactions from those on wild hosts.
Animals ; Bias (Epidemiology) ; Birds ; Far East ; Geese* ; Lakes ; Mastication* ; Mongolia ; Phthiraptera* ; Population Density ; Prevalence

Chewing lice (Phthiraptera) that parasitize the globally threatened swan goose Anser cygnoides have been long recognized since the early 19th century, but those records were probably biased towards sampling of captive or domestic geese due to the small population size and limited distribution of its wild hosts. To better understand the lice species parasitizing swan geese that are endemic to East Asia, we collected chewing lice from 14 wild geese caught at 3 lakes in northeastern Mongolia. The lice were morphologically identified as 16 Trinoton anserinum (Fabricius, 1805), 11 Ornithobius domesticus Arnold, 2005, and 1 Anaticola anseris (Linnaeus, 1758). These species are known from other geese and swans, but all of them were new to the swan goose. This result also indicates no overlap in lice species between older records and our findings from wild birds. Thus, ectoparasites collected from domestic or captive animals may provide biased information on the occurrence, prevalence, host selection, and host-ectoparasite interactions from those on wild hosts.
Animals ; Bias (Epidemiology) ; Birds ; Far East ; Geese* ; Lakes ; Mastication* ; Mongolia ; Phthiraptera* ; Population Density ; Prevalence

PURPOSE: The authors of the present study report a case of phthiriasis palpebrarum treated with petrolatum ointment and tea tree oil in a 12-month-old boy. CASE SUMMARY: A bluish-gray macule and blood clots were found on the central portion of the upper eyelid of a boy who had rubbed his eyelid vigorously 1 week prior. Several 0.5 mm sized brownish-gray nits and 1.6 mm sized lice on the eyelashes were visible and was diagnosed with phthiriasis palpebrarum after light microscopic examination. The nits and lice were gently removed mechanically with the help of a white petrolatum ointment (Vaseline) and the eyelashes were cleaned with 50% tea tree oil. Nits and lice were successfully eradicated without recurrence 10 days after daily treatment with petrolatum ointment and 10% tea tree oil eyelash cleansing.
Child ; Eyelashes ; Eyelids ; Humans ; Infant ; Light ; Pediculus ; Petrolatum ; Phthiraptera ; Recurrence ; Tea ; Tea Tree Oil

Authors have experienced with a rare case of marginal blepharitis caused by pubic lice, which was confirmed by slit-lamp and light microscopic examinations and resulted with a good outcome with appropriate treatment. Patient was a 11 year-old Korean male who has been complaining of itching sensation on the upper lid margin, conjunctival congestion, eye wax and foreign body sensation in both eyes for more than three months. Authors speculate that the possible contact or source of this invader probably is his mother since we have found same ova and worms from the pubic region of his mother. It is recommended that if a patient complains of a blepharitis witli stubborn itching sensation which is not controlled by a ordinary treatment, the therapist should be kept in mind of this parasitic intruder.
Blepharitis* ; Child ; Estrogens, Conjugated (USP) ; Foreign Bodies ; Humans ; Male ; Mothers ; Ovum ; Phthiraptera* ; Pruritus ; Sensation

Authors experienced two unusual cases of marginal blepharoconjunctivitis caused by infestion of pubic lice (Phthirus pubis) which were confirmed by slit lamp and light microscopic examination. The patients were forty-three year old Korean female who was infected from her husband and her six year old daughter who had used a same room with her father and mother. We could find pubic lice and ova on the cilia, pubic and axillar regions of female mother patient and cilia, eyeblow and head of her daughter and we could also find the pubic lice and ova on the pubic region of her husband. The prompt improvement of marginal blepharoconjunctivitis of both eyes of them were achieved by cutting of cilia and the use of topical antibiotics.
Anti-Bacterial Agents ; Cilia ; Fathers ; Female ; Head ; Humans ; Mothers ; Nuclear Family ; Ovum ; Phthiraptera* ; Spouses

Pediculosis (phthiriasis) palpebrarum is a rare disease which occurs on the eyelashes and is caused by Phthiriasis pubis (crab louse). The common symptoms are pruritus, irritation and foreign body sensation, but it is rarely associated with ocular diseases such as blepharitis, conjunctivitis or secondary bacterial infection. We report a case of pediculosis palpebrarum in a 3-year-old girl who had several lice and many nits on both eyelashes, and this was accompanied with blepharitis. She was treated by removal of lice and nits with fine forces, then application of petrolatum ointment twice a day for 7 days.
Bacterial Infections ; Blepharitis ; Child, Preschool ; Conjunctivitis ; Eyelashes ; Female* ; Foreign Bodies ; Humans ; Lice Infestations* ; Pediculus ; Petrolatum ; Phthiraptera ; Pruritus ; Rare Diseases ; Sensation