Dermatologic Differential Diagnosis.pdf. - Famona Site

Leptospirosis
Meningococcemia
Pneumococcal sepsis
Rocky Mountain spotted fever
Roseola
Rubella
Scarlet fever
Staphylococcal sepsis
Streptococcal sepsis
Varicella
Vibrio parahemolyticus
Puss caterpillar sting – hemorrhagic papules, papulovesicles
Cutis 60:125–126, 1997; train track purpura Cutis 71:445–448,
2003
Q fever – generalized petechiae Pediatr Infect Dis J 19:358, 2000
Queensland tick typhus – Rickettsia australis
Rat bite fever – acral hemorrhagic pustules; petechial exanthem
JAAD 38:330–332, 1998
Reduviid bugs (assassin bugs) – hemorrhagic nodules Rook
p.1447, 1998, Sixth Edition
Respiratory syncytial virus
Rheumatic fever – petechiae Rook p.2575,2733, 1998, Sixth
Edition; splinter hemorrhage Ghatan p.84, 2002, Second Edition
Rift Valley fever Tyring p.425, 2002
Rocky Mountain spotted fever (Rickettsia rickettsii ) – initially
blanching pink macules, or morbilliform eruption of wrists and
ankles; soon spreads to face, trunk, and extremities; palms and
soles involved; becomes purpuric with acral gangrene ASM
News 71:65–70, 2005; JAAD 2:359–373, 1980; South Med J
71:1337–1340, 1978
Rotavirus
Rubella – Forscheimer’s spots – red macules and petechiae on
soft palate Rook p.1084,3102, 1998, Sixth Edition; congenital
rubella – purpuric exanthem Tyring p.3, 2002
Salmonella – purpura in neonate AD 130:243–248, 1994;
meningitis with purpura fulminans; typhoid fever presenting as
ITP S Afr Med J 51:3, 1977
Scarlet fever – Pastia’s lines
Scedosporium – bullous necrotic purpura Ann DV 125:711–714,
1998
Schistosomiasis (Schistosoma japonicum) – Katayama
fever – purpura, arthralgia, systemic symptoms Dermatol Clin
7:291–300, 1989; S. mansoni – purpura, urticaria, periorbital
edema 4–6 weeks after penetration of the cercaria Cutis
73:387–389, 2004
Scrub typhus – Rickettsia tsutsugamuchi
Sea anemone sting
Sepsis – multiple organisms – neonatal purpura JAAD
37:673–705, 1997; acral purpura; splinter hemorrhage Ghatan
p.84, 2002, Second Edition
Septic emboli – with pseudoaneurysms due to Staphylococcus
aureus following percutaneous transluminal coronary
angioplasty; palpable purpura, petechiae, and livedo reticularis
Cutis 66:447–452, 2000
Shigellosis
Smallpox – purpura of palms and soles Cutis 71:319–321,
2003; Ghatan p.97, 2002, Second Edition
Snake bites – edema, erythema, pain, and ecchymosis
(within 3–6 hours of bite), necrosis NEJM 347:347–356, 2002
South American Arenaviruses (Junin, Machupo, Sabia,
Guanarito)
Spider bite
PURPURA 547
Staphylococcus aureus sepsis Am J Med 83:801–803, 1987;
Staphylococcus aureus purpura fulminans and toxic shock
syndrome Clin Inf Dis 40:941–947, 2005
Stingray bite BJD 143:1074–1077, 2000; Cutis 58:208–210, 1996
Streptococcus – Group B – purpura in neonate
Streptococcus pyogenes toxic shock-like syndrome –
hemorrhagic bullae AD 131:73–77, 1995; petechiae Textbook of
Neonatal Dermatology, p.189, 2001
Streptococcus pneumoniae
Streptococcus viridans
Strongyloides – hyperinfection; thumb print periumbilical
purpura JAAD 31:255–259, 1994
Subacute bacterial endocarditis – Henoch–Schönlein purpura
with SBE Cutis 69:269–273, 2002; splinter hemorrhage Ghatan
p.84, 2002, Second Edition
Tacaribe viruses – Argentinian, Bolivian and Venezuelan
hemorrhagic fevers – erythema of face, neck, and thorax with
petechiae JAMA 273:194–196, 1994; Lancet 338:1033–1036,
1991
Tick bite – Argasid tick Centr Afr J Med 26:212–213, 1980
Tick typhus (Boutonneuse fever, Kenya tick typhus, African and
Indian tick typhus) (ixodid ticks) – small ulcer at site of tick bite
(tache noire) – black necrotic center with red halo; pink
morbilliform eruption of forearms, then generalizes, involving
face, palms, and soles; may be hemorrhagic; recovery
uneventful JAAD 2:359–373, 1980
Tinea corporis – Trichophyton rubrum – Majocchi’s granuloma
(nodular folliculitis) may be hemorrhagic Rook p.1302, 1998,
Sixth Edition; AD 81:779–785, 1960; AD 64:258–277, 1954
TORCH syndrome – neonatal purpura; blueberry muffin baby
(extramedullary hematopoiesis)
Toxic shock syndrome – petechiae and fever Ghatan p.260,
2002, Second Edition
Toxoplasmosis – purpuric nodules JAAD 14:600–605, 1986;
congenital toxoplasmosis JAAD 12:697–706, 1985; petechial
eruption Textbook of Neonatal Dermatology, p.234, 2001
Trichinosis – periorbital edema, conjunctivitis; transient
morbilliform eruption, splinter hemorrhages Can J Public Health
88:52–56, 1997; Postgrad Med 97:137–139, 143–144, 1995;
South Med J 81:1056–1058, 1988
Trichosporon beigelii, disseminated – purpuric papules and
nodules AD 129:1020–1030, 1993
Trypanosomiasis – African; edema of face, hands, feet with
transient red macular, morbilliform, petechial or urticarial
dermatitis; circinate, annular of trunk Rook p.1407–1408, 1998,
Sixth Edition; AD 131:1178–1182, 1995
Tularemia Cutis 54:279–286, 1994
Varicella, hemorrhagic Rook p.1017–1018, 1998, Sixth Edition
Vasculitis, infectious (not embolic)
Vibrio vulnificus sepsis BJD 142:386–387, 2000;
JAAD 24:397–403, 1991; Am J Gastroenterol 80:706–708,
1985; edema, erythema, and purpura of ankles BJD
145:280–284, 2001
Viral exanthem, including measles
Viral insect borne and hemorrhagic fevers
Togavirus – maculopapular–petechial Rook p.998, 1998,
Sixth Edition
Sindbis fever
Chikungunya fever
O’nyong nyong fever
Ross river fever
Barmah forest fever