Loma Linda Dermatopathology
Dermatopathology/Dermatology Histopathology Library
Looking for more information, high-resolution images, or differential diagnoses on these entities?
Dr. Soeprono's textbook is available on Amazon.com and includes detailed information on over 600 entities and includes four DVD diskettes with high-resolution images that provide a virtual dermatopathology reference and guide.
Dr. Soeprono teaches and practices dermatopathology at Loma Linda University, School of Medicine, Department of Dermatology. He also practices dermatology at the Advanced Dermatology & Laser Center of Redlands, CA and dermatopathology privately.
Disclaimer: The information on this website is provided for informational and educational purposes by Fred F. Soeprono, M.D., Board-Certified Dermatopathologist and Dermatologist. No warranty or guarantee is provided as to the accuracy of the information provided on this website.
Consult a licensed medical doctor with any medical questions.
- acantholytic actinic keratosis
- acanthosis nigricans
- accessory pinna (accessory tragus)
- acne atrophic scar
- acne keloidalis
- acne rosacea
- acne vulgaris
- acquired digital fibrokeratoma
- acquired tufted hemangioma (angioblastoma)
- acral lentiginous melanoma
- acral nevus
- acrochordon (fibroepithelial polyp, skin tag)
- acrodermatitis chronica atrophicans
- acrodermatitis enteropathica
- acrokeratosis paraneoplastica of Bazex
- acrokeratosis verruciformis of Hopf
- actinic cheilitis
- actinic granuloma
- actinic keratosis
- actinic keratosis, atrophic type
- actinic keratosis, bowenoid type
- actinic keratosis, comedonal type
- actinic keratosis, lichenoid type
- actinic keratosis, ulcerated
- actinic reticuloid
- active nevus of the volar skin
- acute allergic contact dermatitis
- acute candidiasis
- acute dermatophytosis
- acute generalized exanthematous pustulosis
- acute graft-versus host disease
- acute irritant contact dermatitis
- acute lupus erythema
- adamantoid basal cell carcinoma
- adenoid cystic carcinoma
- aggressive angiomyxoma
- allergic granulomatosis (Churg and Straus)
- alopecia areata
- alopecia secondary to lichen planopilaris
- alveolar rhabdomyosarcoma
- alveolar soft part sarcoma
- amalgam tattoo
- ancient neurofibroma
- ancient schwannoma
- androgenetic alopecia
- anetoderma
- angioedema (Quincke's edema)
- angiofibroma
- angioimmunoblastic lymphadenopathy
- angiokeratoma
- angioleiomyoma
- angiolipoma
- angiolymphoid hyperplasia with eosinophilia
- angioma serpiginosum
- angiomyxoma
- angiosarcoma
- antoni A neurilemmoma
- antoni B neurilemmoma
- aphthous ulcer
- apocrine carcinoma
- apocrine hidrocystoma
- arthropod bite
- aspergillosis
- atopic dermatitis
- atrophic lichen planus
- atrophoderma of Pasini and Pierini
- atypical compound nevus
- atypical fibroxanthoma
- atypical leukokeratosis (histologic leukoplakia)
- atypical melanocytic hyperplasia
- bacterial intertrigo
- balloon cell melanoma
- balloon cell nevus
- bartholin cyst
- basal cell carcinoma (stepsections)
- basal cell carcinoma curettage
- basal cell carcinoma with sebaceous differentiation
- basal cell carcinoma, adenoid type
- basal cell carcinoma, micronodular type
- basal cell carcinoma, nodular type
- basosquamous carcinoma
- Becker's nevus
- Behcet's syndrome
- benign angioma
- benign verrucous keratosis
- biphasic synovial sarcoma
- blastomycosis
- blue nevus with large cells
- bowenoid basal cell carcinoma
- bowenoid papulosis
- Bowen's disease
- bronchogenic cyst
- bullous impetigo
- bullous insect bite
- bullous lichen planus
- bullous lupus erythematosus
- bullous pemphigoid
- bullous pemphigoid, cell-poor type
- bullous scleroderma
- cafe-au-lait spot
- calcifying panniculitis
- callosis
- capillary hemangioma
- carotid body paraganglioma
- cavernous hemangioma
- cellular blue nevus
- cellular neurothecoma
- cellulitis
- chancre
- chancroid
- chemical burn blister
- cherry angioma
- chondrodermatitis helicis nodularis
- chromomycosis
- chronic bullous dermatosis of childhood
- chronic cutaneous ulcer of unknown etiology
- chronic dermatophytosis
- chronic eczematous dermatitis
- chronic lymphedema
- chronic nummular dermatitis
- chronic radiodermatitis
- chronic urticaria
- cicatricial pemphigoid (benign mucous membrane pemphigoid)
- cicatrix, all margins are free of residual congenital nevus
- cicatrix, all margins are free of the keratoacanthoma
- cicatrix, all margins are free of the recurrent nevus
- cicatrix, all margins clear for the basal cell carcinoma
- cicatrix, all margins clear for the squamous cell carcinoma
- cicatrix, margins are free of the dysplastic nevus
- cicatrix, margins are free of the melanoma in situ
- cicatrix, margins clear of the Unna's nevus
- cicatrix, the margins are free of the Spitz nevus
- cicatrix, with no residual keratoacanthoma
- cicatrix. margins are free of atypical melano. hyperplasia
- clear cell acanthoma
- clear cell hidradenoma
- clear cell sarcoma
- coccidioidomycosis
- colloid milium
- combined blue nevus
- combined congenital nevus
- combined Spitz nevus
- common blue nevus
- compound nevus
- compound nevus of volar skin
- compound nevus with congenital features
- compound nevus with features of Spitz
- compound Spitz nevus
- condyloma acuminatum
- confluent and reticulated papillomatosis
- congenital nevus
- congenital nevus (stepsections)
- connective tissue nevus (collagenoma)
- cryoglobulinemia
- cryptococcosis
- cutaneous chondroma
- cutaneous granulomatous dermatitis
- cutaneous leiomyosarcoma
- cutaneous leishmaniasis
- cutaneous neuroblastoma
- cutaneous periarteritis nodosum
- cutis laxa
- cylindroma
- Darier's disease (keratosis follicularis)
- deep penetrating nevus
- Degos' disease (malignant atrophic papulosis)
- dermal duct tumor
- dermal melanoma
- dermal Spitz nevus
- dermatitis herpetiformis
- dermatofibroma
- dermatofibroma with monster cells
- dermatofibroma, evolving
- dermatofibroma, surface of
- dermatofibrosarcoma protuberans
- dermatomyositis
- dermatopathic lymphadenopathy
- dermatophytic folliculitis
- dermatophytosis
- dermatosis papulosa nigra
- dermoid cyst
- desmoid tumor
- desmoplastic melanoma
- desmoplastic trichoepithelioma
- diffuse mesothelioma
- digitated solar keratosis
- dilated pore of Winer
- dimorphous leprosy
- discoid lupus alopecia
- discoid lupus erythematosus
- disseminated superficial actinic porokeratosis
- drug-induced vasculitis
- dyshidrotic eczema
- dysplastic nevus (stepsections)
- dysplastic nevus with mild dysplasia
- dysplastic nevus with moderate dysplasia
- dysplastic nevus with severe dysplasia
- dystrophic calcinosis cutis
- early lupus erythematosus
- eccrine hidrocystoma
- eccrine porocarcinoma
- eccrine poroma
- eccrine spiradenoma
- eccrine syringofibroadenoma
- eccrine syringometaplasia
- eczema herpeticum
- elastofibroma
- elastosis perforans serpiginosa
- electric burn
- embryonal rhabdomyosarcoma
- eosinophilic fasciitis (Schulman's syndrome)
- eosinophilic pustular folliculitis
- ephelid
- epidermal inclusion cyst
- epidermal nevus
- epidermoid cyst (infundibular cyst)
- epidermoid cyst content
- epidermolysis bullosa
- epidermolytic acanthoma
- epidermotropic metastatic melanoma
- epitheliod sarcoma
- epithelioid blue nevus
- epithelioid hemangioendothelioma
- erosive adenomatosis of the nipple
- eruptive vellus hair cyst
- eruptive xanthoma
- erysipelas
- erythema annulare centrifugum
- erythema chronicum migrans (Lyme disease)
- erythema dyschromicum perstans (Ashy dermatosis)
- erythema elevatum diutinum
- erythema elevatum diutinum, late nodular stage
- erythema marginatum
- erythema multiforme
- erythema multiforme bullosa
- erythema nodosum
- erythema nodosum migrans (migratory panniculitis)
- erythema toxicum neonatorum
- erythrasma
- erythroderma
- erythrokeratodermia variabilis
- erythromelalgia
- erythroplasia of Queyrat
- erythropoietic protoporphyria
- exogenous ochronosis
- extracranial meningioma
- extramammary Paget's disease
- extraskeletal Ewing's sarcoma
- extraspinal ependymoma
- fascicular dermatofibroma
- fibroadipose tissue
- fibroepithelioma of Pinkus
- fibrofolliculoma
- fibroma of tendon sheath
- fibrosarcoma
- fibrous hamartoma of infancy
- fibrous papule of the nose
- fixed drug eruption
- flea bite
- focal dermal hypoplasia
- focal mucinosis
- focal mucinosis of Hunter's disease
- follicular mucinosis
- folliculitis decalvans
- foreign body granuloma
- foreign body panniculitis
- Fox-Fordyce disease
- friction blister
- frictional lichenoid eruption
- furuncle
- ganglion cyst
- generalized myxedema
- generalized scleroderma
- Gianotti-Crosti syndrome
- giant cell tumor of tendon sheath (nodular tenosynovitis)
- giant hairy nevus
- glomangioma
- glomus tumor
- Gottron's papule
- gout
- granular cell tumor
- granulation tissue and reepithelialization
- granulocytic sarcoma
- granuloma annulare
- granuloma annulare, diffuse type
- granuloma faciale
- granuloma fissuratum
- granuloma inguinale
- granulomatous mycosis fungoides
- granulomatous rosacea
- granulonma gluteale infantum
- Grover's disease (Transient acantholytic dermatosis)
- guttate parapsoriasis (digitate dermatosis)
- guttate psoriasis
- gyrate erythema
- Hailey-Hailey disease (benign familial pemphigus)
- halo nevus (Sutton's nevus)
- halogenodermas
- hand-foot-mouth disease
- hemangiopericytoma
- hematoma
- herald patch of pityriasis rosea
- herpes gestationis
- herpes virus infection
- herpetic folliculitis
- hibernoma
- hidradenitis suppurativa
- hidradenocarcinoma
- hidradenoma papilliferum
- hidroacanthoma simplex
- histiocytic cytophagic panniculitis
- histiocytoid hemangioma
- histiocytosis-X
- histoplasmosis
- Hodgkin's lymphoma
- horn of seborrheic keratosis
- horn of verruca vulgaris
- hyperkeratosis lenticularis perstans (Flegel's disease)
- hyperplastic actinic keratosis
- hyperplastic lymphadenopathy
- hypertrophic lichen planus
- hypertrophic lupus erythematosus
- hypertrophic scar
- hypopigmented mycosis fungoides
- ichthyosis vulgaris
- idiopathic calcinosis of the scrotum
- idiopathic guttate hypomelanosis
- impetigo
- inadequately treated lepromatous leprosy
- incontinentia pigmenti
- indeterminate leprosy
- infantile capillary hemangioma
- infantile digital fibromatosis
- infarcted acrochordon
- inflamed seborrheic keratosis
- inflammatory morphea
- ink spot lentigo
- intestinal bypass syndrome
- intradermal nevus
- intradermal nevus, and a follicular cyst
- intradermal nevus, ulcerated
- intraepidermal epithelioma of Borst-Jadassohn
- intramuscular lipoma
- intramuscular myxoma
- intravascular papillary endothelial hyperplasia
- invasive basal cell carcinoma
- inverted follicular keratosis
- junctional atypical nevus with mild dysplasia
- junctional dysplastic nevus with moderate dysplasia
- junctional dysplastic nevus with severe dysplasia
- junctional nevus
- junctional Spitz nevus
- juvenile hyalin fibromatosis
- kaposiform hemangioendothelioma
- Kaposi's sarcoma, angiomatous type
- Kaposi's sarcoma, nodular stage
- Kaposi's sarcoma, patch stage
- Kaposi's sarcoma, plaque stage
- keloid
- keratoacanthoma
- keratoacanthoma, early
- keratoacanthoma, resolving
- keratosis lichenoides chronica
- keratosis palmaris et plantaris
- keratosis pilaris
- Kyrle's disease
- labial lentigo
- lamellar ichthyosis
- large cell acanthoma
- leiomyoma
- leiomyosarcoma
- lentiginous malignant melanoma, Breslow's depth mm
- lentigo maligna
- lentigo maligna (margins clear)
- lentigo maligna melanoma
- lentigo simplex
- lepromatous leprosy
- leukemia cutis
- leukocytoclastic vasculitis
- leukokeratosis oris
- lichen amyloidosis
- lichen aureus
- lichen niditus-like eruption
- lichen nitidus
- lichen planopilaris
- lichen planus
- lichen planus-like keratosis
- lichen sclerosis et atrophicus, early
- lichen sclerosis et atrophicus, old
- lichen simplex chronicus
- lichen striatus
- lichenoid discoid lupus erythematosus
- lichenoid drug eruptions
- lichenoid photodermatitis
- lichenoid purpura (Gougerot and Blum)
- lipoblastoma
- lipodystrophy
- lipoid proteinosis
- lipoma
- lipomembranous panniculitis
- livedo vasculitis
- lupus erythematosus panniculitis
- lupus profundus
- lupus vulgaris
- lymphangioma
- lymphocytic infiltration of Jessner
- lymphocytoma cutis (Spiegler-Fendt sarcoid)
- lymphoma cutis
- lymphomatoid granulomatosis
- lymphomatoid papulosis
- macular amyloidosis
- Majocchi's granuloma
- malignant fibrous histiocytoma
- malignant melanoma (stepsections)
- malignant melanoma, nodular type (nodular melanoma)
- malignant melanoma, superficial spreading type
- malignant schwannoma (neurofibrosarcoma)
- mammary Paget's disease
- Masson's neural blue nevus
- mastocytoma
- median raphe cyst of the penis
- melanoacanthoma (pigmented seborrheic keratosis)
- melanoma ex nevo
- melanoma in situ
- Melkersson-Rosenthal syndrome (cheilitis granulomatosa)
- Merkel cell tumor (trabecular carcinoma)
- metastatic adenocarcinoma
- metastatic breast carcinoma
- metastatic calcinosis cutis
- metastatic carcinoid tumor
- metastatic malignant melanoma
- metastatic renal cell carcinoma
- microcystic adnexal carcinoma
- milia content
- miliaria crystallina/pustulosa
- miliaria rubra
- milium
- milker's nodule/orf
- minocycline pigmentation
- mixed tumor (chondroid syringoma)
- molluscum contagiosum
- molluscum cyst
- mongolian spot
- monophasic synovial sarcoma
- Monsel's solution imbedment
- morbilliform drug eruption
- morphea
- morphea, coup de sabre type
- morpheaform basal cell carcinoma
- Morton's neuroma
- Mucha-Habermann disease (PLEVA)
- mucinous eccrine carcinoma
- mucocele
- mycosis fungoides, patch stage
- mycosis fungoides, plaque stage
- mycosis fungoides, tumor stage
- myiasis
- myxoid liposarcoma
- myxoid liposarcoma, superficial
- myxoid malignant fibrous histiocytoma
- myxoid neurofibroma
- nailplate, no evidence of fungus
- necrobiosis lipoidica
- necrobiotic xanthogranuloma
- necrolytic migratory erythema (glucagonoma syndrome)
- nephrogenic fibrosing dermopathy
- nerve sheath myxoma
- neuratized nevus
- neuroblastoma
- neurodermatitis
- neuroepithelioma
- neurofibroma
- neurotic excoriation
- nevoid melanoma
- nevus araneus (spider angioma)
- nevus comedonicus
- nevus flammeus (port-wine nevus)
- nevus lipomatosus superficialis
- nevus of Ota/Ito
- nevus of Reed
- nevus sebaceus
- nevus spilus (congenital speckled lentiginous nevus)
- nodular amyloidosis
- nodular elastoidosis
- nodular fasciitis
- nodular scabies
- nodular vasculitis
- non-bullous congenital ichthyosiform erythroderma
- nonspecific dermatitis, if clinically indicated, rebiopsy
- non-vesicular herpes virus infection
- normal skin
- norwegian scabies
- nuchal fibroma
- ochronosis
- old dermatofibroma
- onychochausis
- Onychomycosis
- oral candidiasis
- oral fibroma
- oral lichen planus
- osteoma cutis
- pale cell hidradenoma
- palisaded encapsulated neuroma
- palisaded granulomatous rheumatoid dermatitis
- palisaded neutrophilic and granulomatous dermatitis
- palmar-plantar fibromatosis
- pancreatic panniculitis
- papillary eccrine adenoma
- papular eczema
- papular eruption in black men
- papular urticaria
- paraffinoma
- parapsoriasis en plaques
- pemphigus erythematosus
- pemphigus foliaceus
- pemphigus vulgaris
- perforating folliculitis
- perforating granuloma annulare
- perianal basal cell carcinoma
- perioral dermatitis
- periungual fibroma
- phlebangioma (arterial venous hemangioma)
- photoallergic dermatitis
- phototoxic contact dermatitis
- physical urticaria
- picker's nodule
- pigmented actinic keratosis
- pigmented basal cell carcinoma
- pilar sheath acanthoma
- pilomatric carcinoma
- pilomatrixoma (Calcifying epithelioma of Malherbe)
- pitted keratolysis
- pityriasis alba
- pityriasis lichenoides chronica
- pityriasis rosea
- pityriasis rubra pilaris
- pityrosporum folliculitis
- plasmacytoma
- pleomorphic lipoma
- pleomorphic liposarcoma
- plexiform neurofibroma
- poikiloderma atrophicans vasculare
- poikiloderma of Civatte
- polymorphous-light eruptions
- polypoid compound nevus
- poorly differentiated synovial sarcoma
- porokeratosis of Mibelli
- porphyria cutanea tarda
- positive Kveim test
- post-inflammatory pigmentation
- postoperative ulcer and granulation tissue
- post-steroid panniculitis
- post-surgical cicatrix with granulomatous reaction
- pretibial myxedema
- proliferating trichilemmal cyst (pilar tumor of the scalp)
- proliferative fasciitis
- proliferative synovitis
- prurigo nodularis
- prurigo pigmentosa
- pruritic urticarial papules of pregnancy
- pseudocarcinomatous hyperplasia
- pseudofolliculitis barbae
- pseudopelade of Brocq
- pseudoxanthoma elasticum
- psoriasis vulgaris
- purpura fulminans
- pustular psoriasis
- pustulosis palmaris et plantaris (dermatitis repens)
- pyoderma gangrenosum
- pyogenic abscess
- pyogenic folliculitis
- pyogenic granuloma
- reactive perforating collagenosis
- recurrent basal cell carcinoma
- recurrent dysplastic nevus
- recurrent nevus (pseudomelanoma)
- recurrent Spitz nevus
- regressed melanoma
- resolving dermatofibroma
- reticulohistiocytoma
- retiform hemangioendothelioma
- rheumatoid nodule
- rhinoscleroma
- rhinosporidiosis
- rhythmic paradoxical eruption (Macaulay)
- ruptured follicular cyst
- S-100 Immunohistochemical stain negative
- S-100 Immunohistochemical stain positive
- salivary mixed tumor
- sarcoidosis
- scabies
- scale-crust
- Schamberg's disease (progressive pigmentary dermatosis)
- schwannoma (neurilemmoma)
- scleredema
- sclerema neonatorum
- scleromyxedema
- sclerosing hemangioma
- sclerosing panniculitis
- sclerotic fibroma
- scrofuloderma
- scurvey
- sebaceoma
- sebaceous adenoma
- sebaceous carcinoma
- sebaceous hyperplasia
- seboacanthoma
- seborrheic dermatitis
- seborrheic dermatitis of AIDS
- seborrheic dermatitis, spongiotic
- seborrheic keratosis
- seborrheic keratosis, adenoid type
- seborrheic keratosis, macular type
- secondary syphilis
- secondary syphilis (with histiocytic predominance)
- secondary syphilis, lichenoid
- senile purpura
- septic vasculitis (gonococcemia, meningococemia)
- Sezary syndrome
- silica granuloma
- silicone granuloma
- smooth muscle hamartoma
- solar elastosis
- solar elastosis and fibrosis, no evidence of malignancy
- solar lentigo (lentigo senilis)
- solid-cystic hidradenoma
- spindle cell lipoma
- spindle cell melanoma, pigmented
- spindle cell melanoma, ulcerated
- spindle cell nevus
- spindle cell squamous cell carcinoma
- Spitz nevus, childhood variant
- sporotrichosis
- squamous cell carcinoma
- squamous cell carcinoma (5 slides)
- squamous cell carcinoma (stepsections)
- squamous cell carcinoma in situ
- squamous cell carcinoma, pseudoglandular type
- staphylococcal scalded skin syndrome
- stasis changes of pretibial skin
- stasis dermatitis
- steatocystoma (sebaceous duct cyst)
- striae distensa
- subacute cutaneous lupus erythematosus
- subacute eczematous dermatitis
- subcorneal pustular dermatosis
- subcutaneous fat necrosis of the newborn
- subcutaneous granuloma annulare
- subcutaneous necrobiosis lipoidica
- subcutaneous sarcoidosis
- subcutaneous steroid deposit
- subepidermal calcified nodule (cutaneous calculi)
- subungual exostosis
- superficial basal cell carcinoma
- superficial squamous cell carcinoma
- supernumerary digit with amputated neuroma
- supernumerary nipple
- surface of an intradermal nevus
- suture granuloma
- Sweet's syndrome (acute febrile neutrophilic dermatosis)
- swimming pool granuloma (mycobacterium marinum)
- syphilitic alopecia
- syringocystadenoma papilliferum
- syringoma
- syringomatous carcinoma
- talon noir
- tattoo
- tattoo granuloma
- telangiectasia
- telangiectasis macularis eruptiva perstans
- telogen effluvium
- temporal triangular alopecia
- tertiary syphilis
- thorn with granulomatous reaction
- thrombophlebitis
- thrombosed vein
- thrombotic thrombocytopenic purpura
- thyroglossal cyst
- tick bite
- tinea capitis
- tinea versicolor
- toxic epidermal necrolysis
- toxoplasmosis
- traumatic neuroma
- traumatic panniculitis
- trichilemmal cyst (pilar cyst)
- trichilemmoma
- trichoadenoma
- trichoblastoma
- trichodiscoma
- trichoepithelioma
- trichofolliculoma
- trichostasis spinulosa
- trichotillomania
- tuberculoid leprosy
- tuberous xanthoma
- tubular apocrine adenoma
- tumid discoid lupus erythematosus
- tumor of follicular infundibulum
- tumoral calcinosis
- undifferentiated spindle neoplasm
- Unna's nevus
- Urticaria
- urticaria pigmentosa
- urticarial drug eruption
- urticarial stage of pemphigoid
- urticarial vasculitis
- vacinnia
- varicella
- venous lake
- verruca plana
- verruca plantaris
- verruca volare
- verruca vulgaris
- verruca with pseudocarcinomatous hyperplasia
- verruca with squamous eddies
- verrucous carcinoma
- verrucous hemangioma
- vesicular dermatophytosis
- viral exanthem
- vitiligo
- vulvar nevus of young women
- warty dyskeratoma
- Wegener's granulomatosis
- well-differentiated liposarcoma (atypical lipomatous tumor)
- Well's syndrome (eosinophilic cellulitis)
- Woringer-Kolopp disease (pagetoid reticulosis)
- xanthelasma
- xanthogranuloma
- xerotic dermatitis
- x-linked ichthyosis
- Zoon's balanitis