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Figure c33/f001
Figure 33.1
Microfilaria of Onchocerca volvulus in the upper dermis. Note the absence of inflammation around the live organism. (Courtesy of Dr C. McDougall, S...
Figure c33/f005
Figure 33.5
Late lichenified onchodermatitis (pachyderma).
Figure c33/f009
Figure 33.9
Streptocerciasis. Pigmentary changes and nodules in a patient from Zaire. (Courtesy of the Armed Forces Institute of Pathology, Washington, DC, USA.)...
Figure c33/f013
Figure 33.13
Loa loa . Creamy white adult worm crossing the conjunctiva of a Nigerian patient.
Figure c33/f017
Figure 33.17
Life cycle of Enterobius vermicularis . (Courtesy of the Centers for Disease Control and Prevention.
Figure c33/f021
Figure 33.21
Life cycle of Gnathostoma spinigerum and G. hispidum . (Courtesy of the Centers for Disease Control and Prevention
Figure c33/f025
Figure 33.25
Life cycle of Trichinella . (Courtesy of the Centers for Disease Control and Prevention l...
Figure c33/f029
Figure 33.29
Schistosoma haematobium ovum in urine. (Courtesy of Mr A.H. Moody, Hospital for Tropical Diseases, London, UK.)
Figure c33/f033
Figure 33.33
Calcified cysticercal cysts in the muscles of the thighs and pelvis.
Figure c33/f037
Figure 33.37
Cutaneous amoebiasis. Rapidly spreading ulcer around a colostomy in a patient with intestinal amoebiasis. (Courtesy of Meddia (Medical and Diagnostic...
Figure c33/f041
Figure 33.41
Trypanosomal rash (same patient as Figure ). The maculopapular rash is becoming haemorrhagic.
Figure c33/f045
Figure 33.45
Cutaneous leishmaniasis (high power, H&E); biopsy of early lesion, showing abundant amastigotes in macrophages, and a few plasma cells. (Courtesy of ...
Figure c33/f049
Figure 33.49
Cutaneous leishmaniasis due to Leishmania major from Sudan. An ulcer with a raised edge.
Figure c33/f053
Figure 33.53
Leishmaniasis recidivans (lupoid leishmaniasis) from Baghdad, showing active papules cropping in the edge of the scar of the healed sore. (Courtesy o...
Figure c33/f057
Figure 33.57
Post‐kala‐azar dermal leishmaniasis in an Indian person showing the extensive hypopigmented macular rash.
Figure c33/f002
Figure 33.2
Life cycle of Onchocera volvulus . (Courtesy of the Centers for Disease Control and Prevention. last acces...
Figure c33/f006
Figure 33.6
Late onchocerciasis. Atrophy of skin and damage to supporting tissue cause the skin to sag in folds (lizard skin).
Figure c33/f010
Figure 33.10
Lymphatic filariasis (low power, H&E). Female adult Wuchereria bancrofti within lymph node sinus. Multiple cross‐sections of the worm are seen. (Co...
Figure c33/f014
Figure 33.14
Calabar swelling of the dorsum of the left hand in a European patient with loaiasis. In this case no microfilariae were seen in the blood.
Figure c33/f018
Figure 33.18
The life cycle of Strongyloides stercoralis . (Courtesy of the Centers for Disease Control and Prevention
Figure c33/f022
Figure 33.22
Gnathostoma spinigerum . Head of an adult worm that was extruded from a subcutaneous swelling in a patient from Bangladesh. The crown of hooklets is c...
Figure c33/f026
Figure 33.26
Life cycle of the Schistosoma . (Courtesy of the Centers for Disease Control and Prevention
Figure c33/f030
Figure 33.30
Paragonimiasis. Chest X‐ray showing three discrete opacities, in two of which cavitation is present, characteristic of the disease in Thailand. (Cour...
Figure c33/f034
Figure 33.34
Life cycle of spargana. (Courtesy of the Centers for Disease Control and Prevention last accessed November 201...
Figure c33/f038
Figure 33.38
African trypanosomiasis parasite life cycle. (Courtesy of the Centers for Disease Control and Prevention
Figure c33/f042
Figure 33.42
Chagas disease. Unilateral oedema of the eyelids and orbit (Chagas–Mazza– Romaña's sign). (Courtesy of Professor M. Miles, London School of Hygiene a...
Figure c33/f046
Figure 33.46
Chronic cutaneous leishmaniasis. Granulomatous dermatitis without necrosis. There are no amastigotes to be found in this case, and the differential di...
Figure c33/f050
Figure 33.50
Cutaneous leishmaniasis due to Leishmania aethiopica from Kenya. A large nodule with many satellite papules and abundant parasites.
Figure c33/f054
Figure 33.54
Diffuse cutaneous leishmaniasis due to Leishmania aethiopica in Ethiopia. The face is covered with infiltration and nodulation but there is no ulcer...
Figure c33/f058
Figure 33.58
Post‐kala‐azar dermal leishmaniasis in an Indian person. A later stage than that shown in Figure . Papules are beginning to develop.
Figure c33/f003
Figure 33.3
Acute papular onchodermatitis in a Nigerian. Early in the disease the papules are usually urticarial.
Figure c33/f007
Figure 33.7
Depigmentation over the shin in late onchocerciasis (leopard skin). This is common in African endemic areas. Note the stick for the blind.
Figure c33/f011
Figure 33.11
Life cycle of Wuchereria bancrofti . (Courtesy of the Centers for Disease Control and Prevention. last acc...
Figure c33/f015
Figure 33.15
Life cycle of Dracunculus medinensis . (Courtesy of the Centers for Disease Control and Prevention.
Figure c33/f019
Figure 33.19
Larva currens rash of Strongyloides stercoralis . The weal and flare will have disappeared in a few hours.
Figure c33/f023
Figure 33.23
Dirofilariasis. Low‐power view of cold abscess from the cheek. It shows degenerate coiled Dirofilaria worm within an abscess, and surrounding lympho...
Figure c33/f027
Figure 33.27
Schistosomiasis of the vulva (medium power, H&E) showing six schistosome eggs with surrounding lymphoplasmocytic infiltration. (Courtesy of Professor...
Figure c33/f031
Figure 33.31
Hydatid disease. Subcutaneous hydatid cyst presenting as a hernia, in a woman from Turkana, Kenya. (Courtesy of Dr C.N.L. MacPherson, Liverpool Schoo...
Figure c33/f035
Figure 33.35
(a) Fibrous encapsulated cold abscess from the groin, which contained (b) a 22‐cm long sparganum. (Courtesy of Professor S.B. Lucas, King's College L...
Figure c33/f039
Figure 33.39
American trypanosomiasis parasite life cycle. (Courtesy of the Centers for Disease Control and Prevention
Figure c33/f043
Figure 33.43
Trypanosomes in a thick blood film, stained with Giemsa. (Courtesy of Dr P.L. Chiodini, Hospital for Tropical Diseases, London, UK.)
Figure c33/f047
Figure 33.47
Cutaneous leishmaniasis due to Leishmania major : early papules, one of which is starting to show central crusting.
Figure c33/f051
Figure 33.51
Nasal involvement, and marked inflammatory oedema in leishmaniasis due to Leishmania aethiopica in Ethiopia.
Figure c33/f055
Figure 33.55
Life cycle of leishmaniasis parasite. (Courtesy of the Centers for Disease Control and Prevention
Figure c33/f059
Figure 33.59
Amastigotes of Leishmania infantum in a bone marrow smear from a patient with visceral leishmaniasis and AIDS. (Courtesy of Mr A.H. Moody, Hospital...
Figure c33/f004
Figure 33.4
Chronic papular onchodermatitis. Lesions are starting to lichenify.
Figure c33/f008
Figure 33.8
Cutaneous oedema and cutaneous and subcutaneous nodules in a Nigerian with onchocerciasis.
Figure c33/f012
Figure 33.12
Lymphangiogram showing tortuous dilated lymphatic vessels in the leg of a patient with lymphatic filariasis from Mauritius.
Figure c33/f016
Figure 33.16
Guinea worm. Adult female Dracunculus medinensis emerging from the skin of a Nigerian patient. (Courtesy of Dr R. Muller, CAB International Institu...
Figure c33/f020
Figure 33.20
Cutaneous larva migrans (creeping eruption). There are several tortuous indurated inflamed worm tracks, in some of which may be seen a blister that ma...
Figure c33/f024
Figure 33.24
Trichinosis. Medium‐power view, Movat stain, showing Trichinella worm within a ‘nurse cell’ in skeletal muscle. There is surrounding oedema, muscle ...
Figure c33/f028
Figure 33.28
Schistosomiasis of the vulva and anus. Condylomatous lesions containing granulomas around schistosome ova. (Courtesy of Professor G. Nelson, Liverpoo...
Figure c33/f032
Figure 33.32
Cysticercosis in a man from North India. A subcutaneous cyst is seen over the sternum. (Courtesy of Dr A.P. Hall, Hospital for Tropical Diseases, Lon...
Figure c33/f036
Figure 33.36
Cutaneous amoebiasis. High‐power view of skin biopsy, showing Entamoeba histolytica trophozoites on the epidermis, causing necrosis. The amoebae are...
Figure c33/f040
Figure 33.40
Trypanosomal chancre due to Trypanosoma rhodesiense infection, appearing 6 days after the bite of the tsetse fly. The lesion is swollen, inflamed an...
Figure c33/f044
Figure 33.44
(a) Geographical distribution of cutaneous and mucocutaneous leishmaniasis in the New World. (b) Geographical distribution of Old World cutaneous leis...
Figure c33/f048
Figure 33.48
Cutaneous leishmaniasis due to Leishmania major from Saudi Arabia, showing marked and persistent crusting.
Figure c33/f052
Figure 33.52
Cutaneous leishmaniasis due to Leishmania infantum , from Spain. The fleshy nodule, with relatively little inflammation, is characteristic.
Figure c33/f056
Figure 33.56
Post‐kala‐azar dermal leishmaniasis. Typical facial papules in a Kenyan arising 6 weeks after treatment and healing spontaneously. (Courtesy of Dr J....