Index A Acute actinic prurigo, 26 Abscess, 2 Acute febrile neutrophilic dermatosis, see Sweet’s Acanthamoebiasis, 3 syndrome Acantholytic acanthoma, 4 Acute generalized exanthematous pustulosis (AGEP), 29 Acantholytic actinic keratosis, 25 Acute grade 2 GvHD, 260 Acantholytic squamous cell carcinoma, 578 Acute grade 3 GvHD, 260 Acanthoma fissuratum, 202 Acute irritant contact dermatitis, 308 Acanthosis nigricans, 5 Acute lupus erythematosus, 30 Acanthotic seborrheic keratosis, 565 Acute radiation dermatitis, 536 Accessory digit, see Supernumerary digit Adenoid cystic basal cell carcinoma, 75 Accessory nipple, see Supernumerary nipple Adenoid cystic carcinoma, 31 Accessory tragus, 6 Adenoma Sebaceum, see Angiofibroma Acne agminata, 7 Adult T-cell lymphoma/leukemia, 32, 149, 150 Acne conglobata, 8 Adult xanthogranuloma (AXG), 436, 664 Acne fulminans, 9 African tick bite, 33 Acne inversa, see Hidradenitis suppurativa AGEP, see Acute generalized exanthematous Acne keloidalis nuchae, 10, 553 pustulosis (AGEP) Acne rosacea, see Rosacea Aggressive digital papillary adenocarcinoma, 34 Acne vulgaris Albinism, 35 inflammatory, 11, 12 Albright’s syndrome, 94 noninflammatory, 11 Allergic contact dermatitis, 36 Acquired digital fibrokeratoma, 13 acute, 36 Acral fibrokeratoma, 13 chronic, 36 Acral fibromyxoma, 14 subacute, 36 Acral papular mucinosis, 398 Allergic granulomatosis with polyangiitis, see Churg Acral persistent papular mucinosis, 15, 342 Strauss disease Acral vesicular dermatitis, see Dyshidrotic dermatitis Alopecia areata, 37 Acroangiodermatitis, 16 Alopecia mucinosa, see Follicular mucinosis Acrochordon, 17 Alpha-1 antitrypsin deficiency associated panniculitis, Acrodermatitis chronica atrophicans, 18, 364 see Alpha-1 antitrypsin panniculitis early lesions, 18 Alpha-1 antitrypsin panniculitis, 38 established lesions, 18 Alternariosis, 39 Acrodermatitis enteropathica, 418 Amalgam tattoo, 40 Acrokeratosis verruciformis of Hopf, 19 Ameloblastoma, 41 Acrospiroma, 20, 21 Amputation neuroma, 619 Actinic cheilitis, 22 Amyloidosis, 42 Actinic elastosis, see Solar elastosis lichen, 42 Actinic granuloma, 23 macular, 42 Actinic keratosis, 24, 25, 144 nodular/plaque, 42 Actinic lentigo, see Solar lentigo Androgenic alopecia, 43 Actinic prurigo, 26, 352 Anetoderma, 44 acute, 26 early lesion, 44 chronic, 26 established lesion, 44 Actinic reticuloid, 27, 352 Angiocentric lymphoma, see Extranodal NK/T-cell Actinomycosis, 28 lymphoma, nasal type © Springer International Publishing AG, part of Springer Nature 2018 671 V. Vincek, Dermatopathology A–Z, https://doi.org/10.