Neck All Morphologies

Specific conditions involving the nape of the neck.

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Enlarge   Madelung's disease

Lichenified   Atopic dermatitis, Lichen simplex chronicus

Linear   Cutis rhomboidalis nuchae

Papules   Acne Keloidalis nuchae,Acne necrotica,White fibrous papulosis,Papular mucinosis

Red scaly   Hailey-Hailey disease,Psoriasis,

Vascular   Salmon patch,

Velvety   Acanthosis nigricans

Specific conditions involving the front of the Neck

Assuming the midline location is important it could be a thyroglossal duct cyst. Any inflammation and discharge mean you have to exclude infective conditions including TB. I would examine the discharge  microscopically and culture for TB, Leishmania etc. A desmoid cyst can occur here.  A branchial arch cyst would be rare.

Linear   Midline cervical cleft

Nodule   Thyroglossal duct cyst

Specific conditions involving the side of the neck

Annular   Elastosis perforans serpiginosa

Lichenified   Fiddler's neck

Lymphadenopathy   Sinus histiocytosis with massive lymphadenopathy

Pedunculated   Skin tags

Purpura   Kissing purpura

Red brown   Poikiloderma of civatte

Red scaly   Atopic dermatitis,Pellagra

Rippled pigmentation Amyloidosis, Atopic dirty neck

Sinus tracts   Scrofuloderma

Velvety   Acanthosis nigricans

Yellow papules   Juxtaclavicular beaded lines,Pseudoxanthoma elasticum

Congenital   Branchial cleft cyst,sinusand fistulaBrochogenic cyst,Cervical thymic cyst,Cutaneous cervical tag

Modified from Regional Dermatology Gary M White