Annular lichen planus 
Atrophic lichen planus
Bullous lichen planus (vesiculobullous lichen planus)
Erosive lichen planus
Erythema dyschromicum perstans (ashy dermatosis, dermatosis cinecienta)
Giant cell lichenoid dermatitis
Hepatitis-associated lichen planus
Hypertrophic lichen planus (lichen planus verrucosus)
Idiopathic eruptive macular pigmentation
Inverse lichen planus
Keratosis lichenoides chronica (Nékams disease)
Kraurosis vulvae
Lichen nitidus
Lichen planus actinicus (actinic lichen niditus, actinic lichen planus, lichen planus atrophicus annularis, lichen planus subtropicus, lichen planus tropicus, lichenoid melanodermatitis, lichenoid melanodermatosis, summertime actinic lichenoid eruption)
Lichen planus pemphigoides
Lichen planus pigmentosus
Lichen planus–lichen sclerosus overlap syndrome
Lichen ruber moniliformis
Lichen sclerosus (lichen sclerosus et atrophicus)
Lichen striatus (Blaschko linear acquired inflammatory skin eruption, linear lichenoid dermatosis)
Lichen verrucosus et reticularis
Lichenoid trikeratosis
Lichenoid dermatitis
Lichenoid reaction of graft-versus-host disease
Linear lichen planus
Mucosal lichen planus
Peno-gingival syndrome
Ulcerative lichen planus
Vulvovaginal gingival syndrome
Vulvovaginal lichen planus

Lymphoid-related
Lymphoid-related cutaneous conditions are a group of disorders characterized by collections of lymphocyte cells within the skin.
Accessory nail of the fifth toe
Accessory tragus (ear tag, preauricular appendage, preauricular tag)
Amniotic band syndrome (ADAM complex, amniotic band sequence, congenital constriction bands, pseudoainhum)
Aplasia cutis congenita (cutis aplasia, congenital absence of skin, congenital scars)
Arteriovenous fistula
Benign neonatal hemangiomatosis
Branchial cyst (branchial cleft cyst)
Bronchogenic cyst
Capillary hemangioma (infantile hemangioma, nevus maternus, strawberry hemangioma, strawberry nevus)
Cavernous venous malformation
Congenital cartilaginous rest of the neck (cervical accessory tragus, wattle)
Congenital erosive and vesicular dermatosis
Congenital hypertrophy of the lateral fold of the hallux
Congenital lip pit (congenital sinus of the lower lip, lip sinus, midline sinus of the upper lip)
Congenital malformations of the dermatoglyphs
Congenital smooth muscle hamartoma
Cystic lymphatic malformation
Dermoid cyst
Diffuse neonatal hemangiomatosis
Encephalocele
Focal facial dermal dysplasia
Hutchinsons teeth
Hyperkeratotic cutaneous capillary-venous malformation
Intrauterine epidermal necrosis
Limb–mammary syndrome
Lowry–MacLean syndrome
Macrocheilia
Macrocystic lymphatic malformation
Malignant pilomatricoma (pilomatrical carcinoma, pilomatrix carcinoma)
Maternal autoimmune bullous disease
Median raphe cyst
Melanotic neuroectodermal tumor of infancy
Membranous aplasia cutis
Microcystic lymphatic malformation
Midline cervical cleft
Mongolian spot (congenital dermal melanocytosis, dermal melanocytosis) 
Mulberry molar
Nager acrofacial dysostosis
Nasal glioma (brain-like heterotopia, cephalic brain-like heterotopia, glial hamartoma, heterotopic neuroglial tissue, nasal cerebral heterotopia, nasal heterotopic brain tissue)
Nasolacrimal duct cyst
Nevus psiloliparus
Non-involuting congenital hemangioma
Omphalomesenteric duct cyst (omphalomesenteric duct remnant, vitelline cyst)
PELVIS syndrome
Pilomatricoma (calcifying epithelioma of Malherbe, Malherbe calcifying epithelioma, pilomatrixoma)
Poland anomaly
Posterior fossa malformations–hemangiomas–arterial anomalies–cardiac defects–eye abnormalities–sternal cleft and supraumbilical raphe syndrome (PHACE association, PHACES syndrome)
Preauricular sinus and cyst (ear pit, congenital auricular fistula, congenital preauricular fistula, preauricular cyst)
Rapidly involuting congenital hemangioma (congenital nonprogressive hemangioma)
Rosenthal–Kloepfer syndrome
Rudimentary supernumerary digit (rudimentary polydactyly)
SACRAL syndrome
Sinus pericranii
Skin dimple (skin fossa)
Superficial lymphatic malformation (lymphangioma circumscriptum)
Supernumerary nipple (accessory nipple, pseudomamma)
Thyroglossal duct cyst
Verrucous vascular malformation (angiokeratoma circumscriptum naeviforme)

Connective tissue diseases
Connective tissue diseases are caused by a complex array of autoimmune responses that target or affect collagen or ground substance.