Schneiderman Prelims Vol-I. qxd

PHOTODERMATOSES
Ephelides
Melasma
PRIMARY CUTANEOUS DISEASE
Acanthosis nigricans
Acne vulgaris – open comedones (blackheads) 
Rook
p.1949–1951, 1998, Sixth Edition
Alopecia areata – black dots (exclamation point hairs) 
Chromhidrosis 
JAAD 52:89–91, 2005; Rook p.2001, 1998,
Sixth Edition
Galactorrhea 
Rook p.2001, 1998, Sixth Edition
Giant comedone
‘BLACK’ DERMATOLOGIC ENTITIES
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Hidradenitis suppurativa
Hyperkeratosis of the nipple
Ichthyosis – X-linked ichthyosis
Lichen planopilaris 
Rook p.1586,1904–1912, 1998, Sixth Edition
Mal de Meleda – black pits 
Cutis 56:235–238, 1995
Reactive perforating collagenosis – black line
Trichostasis spinulosa 
BJD 84:311–316, 1971
PSYCHOCUTANEOUS DISORDERS
Delusions of parasitosis – debris presented by the patient
SYNDROMES
Atypical nevus syndrome
Nevoid basal cell carcinoma syndrome 
Summer Meeting,
American Academy of Dermatology, July 31, 2004; Int J Oral
Maxillofac Surg 33:117–124, 2004; Am J Med Genet
69:299–308, 1997
Universal acquired melanosis (carbon baby) – deep black
color of entire integument 
Textbook of Neonatal Dermatology,
p.381, 2001
TOXINS
Lead – black nails
TRAUMA
Black dot heel (talon noir) – hemorrhage in stratum corneum
or dermal papillae 
Trans St John’s Hosp Dermatol Soc
51:80–84, 1965
Black palm
Blast tattoos from black powder firearms 
JAAD 17;819–825,
1987
Burn blister with central necrosis
Collier’s stripes (traumatic tattoos of coal miners) 
JAAD
20:137–138, 1989
Frostbite – epidermal necrosis
Hemorrhage – black nails 
Ghatan p.77, 2002, Second Edition
Lead pencil injury
Radiation – black nails; post-radiation angiosarcoma
Trauma with hemorrhagic crust
VASCULAR
Angiokeratoma, solitary papular
Angiosarcoma of the breast post-irradiation for breast cancer;
black nodules 
JAAD 49:532–538, 2003
Cherry angioma, traumatized (Campbell de Morgan spots)
Rook p.2092, 1998, Sixth Edition
Disseminated intravascular coagulopathy – epidermal necrosis
Gangrene – black nails
Intravascular thrombosis (e.g. cryoglobulins) – epidermal
necrosis
Lymphangioma circumscriptum – blue–black 
Rook p.2292,
1998, Sixth Edition; BJD 83:519–527, 1970
Polyarteritis nodosa – in children; fever, peripheral gangrene,
black necrosis, livedo reticularis, ulcers, nodules,
vesiculobullous lesions, arthralgia, nodules of face and
extremities, conjunctivitis 
JAAD 53:724–728, 2005; Ann Rheum
Dis 54:134–136, 1995
Pyogenic granuloma 
Rook p.2354–2355, 1998, Sixth Edition
Thrombosed capillary aneurysm
Vascular insufficiency – epidermal necrosis
Verrucous hemangioma – linear along Blaschko’s lines 
JAAD
42:516–518, 2000