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Dermatologic Differential Diagnosis.pdf. - Famona Site

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Onychomycosis – black nail Ghatan p.77, 2002, Second Edition<br />

Osteomyelitis – subungual black macules associated with<br />

osteomyelitis of distal phalanges AD 124:418–423, 1988<br />

Pinta – black nails<br />

Pitted keratolysis<br />

Pseudochromhidrosis – colorless sweat becomes pigmented<br />

due to chromogenic bacteria (Corynebacterium) Rook p.2001,<br />

1998, Sixth Edition<br />

Rickettsial pox – eschar (tache noir) JAAD 2:359–373, 1980<br />

Scrub typhus (Rickettsia tsutsugamuchi ) (mites) – headache<br />

and conjunctivitis; eschar with black crust; generalized macular<br />

or morbilliform rash JAAD 2:359–373, 1980<br />

Tick, engorged or non-engorged Rook p.1456, 1998, Sixth<br />

Edition; Br Med J 309:1693, 1994<br />

Tick typhus (Boutonneuse fever, Kenya tick typhus, African and<br />

Indian tick typhus) (ixodid ticks) – small ulcer at site of tick bite<br />

(tache noire) – black necrotic center with red halo; pink<br />

morbilliform eruption of forearms, then generalizes, involving<br />

face, palms, and soles; may be hemorrhagic; recovery<br />

uneventful JAAD 2:359–373, 1980<br />

Tinea capitis – endothrix (T. tonsurans and T. violaceum) – black<br />

dots of swollen hair shafts as hairs break at surface of scalp<br />

JAAD 8:322–330, 1983<br />

Tinea nigra palmaris – Phaeoannelomyces werneckii Ped Derm<br />

20:315–317, 2003; AD 11:904–905, 1975<br />

Trichomycosis axillaris<br />

Tungiasis with central black pit or dot AD 141:389–394, 2005;<br />

JAAD 20:941–944, 1989; JAAD 15:117–119, 1986<br />

Zygomycosis – black eschar; edema with black discoloration<br />

J Pediatr Surg 37:1607–1611, 2002<br />

INFILTRATIVE<br />

Dorsal mucoid cysts of the finger AD 129:633–638, 1993<br />

INFLAMMATORY DISEASES<br />

Erythema multiforme with epidermal necrosis<br />

METABOLIC<br />

Aspartylglucosaminuria – angiokeratoma corporis diffusum BJD<br />

147:760–764, 2002<br />

Diabetes mellitus – finger sticks<br />

Fabry’s disease – angiokeratomas AD 140:1440–1446, 2004<br />

Metastatic calcification<br />

Ochronosis – black or blue–black cerumen, urine, cartilage of<br />

nose, sclerae, skin of axillae, around areolae, ends of fingers,<br />

cheeks, scleral deposits NEJM 347:2111–2121, 2002; Am J<br />

Med 34:813–838, 1963; black nails<br />

Vitamin B12 deficiency – black nails<br />

NEOPLASMS<br />

Aneurysmal fibrous histiocytomas (variant of dermatofibroma)<br />

BJD 153:664–665, 2005<br />

Atypical nevus<br />

Basal cell carcinoma, pigmented Cutis 71:404–406, 2003; Rook<br />

p.1681–1683, 1998, Sixth Edition; Acta Pathol Mibrobiol Scand<br />

88A:5–9, 1980<br />

Blue nevus JAAD 49:924–929, 2003; multiple congenital blue<br />

nevi BJD 152:391–393, 2005<br />

Bowenoid papulosis – black papules Tyring p.266, 2002; Ped<br />

Derm 2:297–301, 1985; Proc R Soc Med 68:345–346, 1975<br />

Combined spindle and melanocytic nevus<br />

Combined type blue nevus Ped Derm 14:358–360, 1994<br />

Dermatofibrosarcoma protuberans – congenital blue–black<br />

patch JAAD 42:907–913, 2000<br />

Dermatosis papulosa nigra AD 89:655–658, 1964<br />

Eccrine hidrocystomas JAAD 35:480–482, 1996<br />

Eccrine poroma – blue–black pedunculated tumor of chin<br />

BJD 152:1070–1072, 2005<br />

Epidermal nevus<br />

Granular cell schwannoma<br />

Hemangioma<br />

Hidroacanthoma, pigmented AD 130:913–918, 1994<br />

Hidrocystoma – apocrine or eccrine – clear or blue or<br />

blue–black Eyelid and Conjunctival Tumors, Shields JA and<br />

Shields CL, Lippincott Williams and Wilkins pp.153–155, 1999;<br />

eyelid or facial cyst AD 137:657–662, 2001;<br />

AD 134:1627–1632, 1998; AD 115:194–200, 1979<br />

Infantile myofibromatosis – purple–black papules and macules<br />

AD 136:597–600, 2000; JAAD 41:508, 1999<br />

Ink spot lentigo AD 128:934–940, 1992<br />

Kaposi’s sarcoma<br />

Lymphoma – intravascular large cell lymphoma – black macules<br />

JAAD 39:318–321, 1998<br />

Melanocytic nevus – black nail Ghatan p.77, 2002, Second<br />

Edition; traumatized nevus<br />

Melanoma – nodular, congenital malignant melanoma BJD<br />

151:693–697, 2004; of lip BJD 152:1324–1326, 2005<br />

Nevus comedonicus AD 139:93–98, 2003<br />

Nevus sebaceus AD 140:1393–1398, 2004<br />

Pilomatrixoma AD 110:773–774, 1974<br />

Psammomatous melanotic schwannoma (Carney complex)<br />

AD 129:202–204, 1993<br />

Seborrheic keratosis Rook p.1659–1660, 1998, Sixth Edition<br />

Skin tag – necrosed due to torsion<br />

Spindle cell nevus of Reed – black papule or plaque Ped Derm<br />

47:137–139, 2002<br />

Spitz nevus, including agminated Spitz nevi – black or<br />

black–pink nodule JAAD 52:S48–50, 2005<br />

Syringocystadenocarcinoma papilliferum – black cauliflower-like<br />

verrucous plaque JAAD 45:755–759, 2001<br />

Trichofolliculoma – black pore<br />

PHOTODERMATOSES<br />

Ephelides<br />

Melasma<br />

‘BLACK’ DERMATOLOGIC ENTITIES 75<br />

PRIMARY CUTANEOUS DISEASE<br />

Acanthosis nigricans<br />

Acne vulgaris – open comedones (blackheads) Rook<br />

p.1949–1951, 1998, Sixth Edition<br />

Alopecia areata – black dots (exclamation point hairs)<br />

Chromhidrosis JAAD 52:89–91, 2005; Rook p.2001, 1998,<br />

Sixth Edition<br />

Galactorrhea Rook p.2001, 1998, Sixth Edition<br />

Giant comedone

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