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Dr Sampurna Roy MD




Histology of the Normal Skin




Gross examination of the skin specimen


Reporting of biopsies taken for Inflammatory Skin Diseases


Lichenoid (Interface) Tissue Reaction Pattern


Psoriasiform Reaction Pattern


Vesiculobullous Reaction Pattern


Spongiotic Reaction Pattern


Vascular Diseases: Various forms of Vasculitis


Lichen planus-like lesions


Lichen Nitidus


Lichen Aureus


Lichen Planopilaris


Cutaneous lesion in graft-
versus host disease


Discoid Lupus  Erythematosus


Pityriasis rubra pilaris


Grover's Disease


Pemphigoid Gestationis


Bullous Pemphigoid


Dermatitis Herpetiformis


Hailey-Hailey Disease 


Chilblains (Perniosis) and Equestrian Perniosis


Erythema Nodosum


Febrile Neutrophilic Dermatosis (Sweet's Syndrome)


Allergic Granulomatosis (Churg-Strauss Syndrome)


Granuloma faciale


Erythema Elevatum Diutinum


Granulomatous Reaction Pattern of the Skin


Granuloma Annulare


Perforating Granuloma Annulare


Necrobiosis Lipoidica


Necrobiotic Xanthogranuloma 


Rheumatoid Nodule


Lupus Vulgaris


Cutaneous Sarcoidosis


Melkersson Rosenthal Syndrome


Annular Elastolytic Giant Cell Granuloma


Skin lesion in Crohn's Disease


Foreign body granuloma




Interstitial Granulomatous Dermatitis


Interstitial Granulomatous Drug Reaction


Granular Parakeratosis


Median Raphe Cyst


Cutaneous Ciliated Cyst


Infective Panniculitis


Pancreatic Panniculitis


Drug related cutaneous lesions


Digital Mucous (Myxoid) Cyst


Superficial Acral Fibromyxoma


Pathology of Merkel Cell Carcinoma


Keloid of the Ear


Chondrodermatitis Nodularis Chronica Helicis


Reactive Perforating Collagenosis


Elastosis Perforans Serpiginosa


Pseudoxanthoma Elasticum


Confluent and Reticulated Papillomatosis


Follicular Mucinosis (Alopecia Mucinosa)

A systematic approach to diagnose cutaneous infections by dermatopathologists






Furuncle (Boil)




Toxic Shock Syndrome


Erythema chronicum migrans


Blastomycosis-like pyoderma


Histoid Leprosy


Cutaneous Infections and Infestations


1 : Bacterial, Rickettsial and Chlamydial Infections


2 : Spirochetal Infections


3 : Mycoses and algal Infections


4 : Protozoal Infections


5 : Helminth Infections


6 : Viral Infections



Skin Adnexal (Appendage) Tumours


Benign Sweat Gland Tumours


Apocrine/Eccrine Hidrocystoma




Chondroid syringoma




Syringocystadenoma Papilliferum 


Hidradenoma Papilliferum 


Nipple Adenoma










Papillary Eccrine Adenoma


Apocrine Adenoma




Classification of Malignant Sweat Gland Tumours 


Microcystic adnexal carcinoma


Syringomatous carcinoma (Eccrine Carcinoma ; Syringoid Carcinoma)


Cutaneous adenoid cystic carcinoma


Mucinous carcinoma


Primary extramammary Paget’s disease




Digital papillary adenocarcinoma




Apocrine adenocarcinoma


Eccrine ductal carcinoma




Malignant cylindroma


Clear cell carcinoma


Tumours of the Hair Follicle




Desmoplastic trichoepithelioma






Cutaneous lymphadenoma


Basaloid Follicular Hamartoma




Dilated Pore of Winer


Pilar Sheath Acanthoma


Tumour of the Follicular Infundibulum




Desmoplastic Trichilemmoma


Trichilemmal Carcinoma 


Proliferating Trichilemmal Tumour




Pilomatrix Carcinoma


Sebaceous tumours


Fordyce's Spots




Nevus Sebaceous


Folliculosebaceous Cystic Hamartoma


Sebaceous Hyperplasia




Rippled-Pattern Sebaceoma


Sebaceous Adenoma


Sebaceous Carcinoma





Related Posts in:


Rodent Ulcer - 3 Watercolour Drawings


Leprosy - Vintage Photograph


Pathology Poster - A Fishy Matter - Fish Tank Granuloma


Histopathology Art - Tungiasis


Merkel cell is named after Friedrich Sigmund Merkel


Pathology Poster - Dare to Diagnose Darier's Disease


Pathology Poster - Sarcoidosis


Pathology Poster -Acrokeratosis verruciformis of Hopf


Pathology Poster - Subcutaneous Panniculitis- Like T- Cell Lymphoma (Bean bag cells)


Pathology Poster - Infantile Myofibromatosis


Pathology Poster - Keratohyaline Granules


Pathology Poster -  Myxoid 


Pathology Poster - Chondroid Stroma


Pathology Poster - Cholesterol Clefts


Pathology Poster - Tattoo


Pathology Poster - Paget Cell and Paget Pattern


Pathology Art - Twirling Ballerina


Pathology Art - A  Butterfly


Pathology Art - Swan


Pathology Art - Cat 


Pathology Art -  Flower


Pathology Art - Climbing Hill

Pathology Art - Tortoise


Pathology Art -  Crocodiles


Pathology Art -   Ikebana

Cutaneous Deposits


Calcinosis Cutis


Cutaneous Ossification (Osteoma Cutis)


Cartilaginous Lesions of the Skin


Pretibial Myxedema


Lipoid Proteinosis


Pathology of Colloid Milium




Silicone granulomas




Verruciform Xanthoma


Melanocytic Tumours


Acquired Melanocytic Nevus


Ancient Nevus


Halo Nevus


Balloon Cell Nevus


Congenital Nevus


Deep Penetrating Nevus


Dysplastic Melanocytic Nevus (Atypical Nevus)


Blue Nevus and variants


Spitz Nevus; Atypical Spitz Nevus and Spitzoid Melanoma


Desmoplastic Spitz Nevus


Combined Nevus


Recurrent Nevus


Pigmented Spindle Cell Nevus (Reed Nevus)


Lentigo Maligna Melanoma


Superficial Spreading Melanoma


Nodular Melanoma


Acral Lentiginous Melanoma


Desmoplastic and 
Neurotropic Melanoma


Nevoid Melanoma


Balloon Cell Melanoma


Prognostic Parameters of Melanoma


Variants of Melanoma that can be mistaken for a Benign lesion



Epidermal Nevus


Inflammatory Linear Verrucous Epidermal Nevus


Dermatosis Papulosa Nigra


Seborrheic keratosis




Prurigo Nodularis


Clear cell acanthoma


Large cell acanthoma


Warty Dyskeratoma


Virally Induced Epidermal Lesions 


Epidermodysplasia verruciformis


Condyloma Acuminatum


Molluscum contagiosum




Bowen's disease


Bowenoid papulosis


Actinic keratosis


Basal Cell Carcinoma


Fibroepithelioma of Pinkus



Pathology of Subcutaneous Panniculitis-Like T-Cell Lymphoma


Pathology of Pagetoid reticulosis (Woringer-Kolopp disease)


Pathology of Lymphomatoid Papulosis - Cells resembling 'chunks of coal'


Pathology of Primary Cutaneous Anaplastic Large Cell Lymphoma


Pathology of Cutaneous B-Lymphoblastic Lymphoma


Pathology of Intravascular Large B-cell Lymphoma


Pathology of Primary Cutaneous Marginal Zone B-Cell Lymphoma


Pathology of Primary Cutaneous Diffuse Large B-Cell Lymphoma



Related Posts in:


Pathology Photo of the Day-Stay CALM and have Coffee-Café-au-lait macule (CALM)


Pathology Photo of the Day - A Blue Turban with Pink border


Pathology Photo of the Day - Baboon and Skin Disease


Pathology Photo of the Day -Cloves and Newborn


Cow's Den - Cowden's syndrome


Pathology Photo of the Day - "On a WHIM"


Hyaline - Value of a descriptive word in General Pathology and Dermatopathology


Pathology Photo of the Day - LEOPARD


Dermatopathology patterns that remind us of something else


Pathology Photo of the Day -"Blueberry Muffin is not for your Baby": Blueberry Muffin Syndrome


Pathology Photo of the Day - Mystery of an egghead in a hair follicle. - Dermatopathology


Pathology Photo of the Day - A Fox...


Five Tumors of the Finger: "Finger Art" by a Pathologist 






Welcome to the Dermatopathology website designed, created and maintained by Dr Sampurna roy MD

"The skin is a mirror of the body. Look to the skin for specific manifestations of diseases."



Dr Sampurna Roy  MD

Consultant  Histopathologist (Kolkata - India)






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