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


Welcome to the Dermatopathology website designed, created and maintained by 

Dr Sampurna Roy MD   

"The contents of this site is based on my experience, discussion with colleagues and information from text books and journals"

 

 

Dr  Sampurna Roy  MD

Consultant Histopathologist

(Kolkata - India)

 

                              

 

10 Microscopic Features of Acute Febrile Neutrophilic Dermatosis (Sweet's Syndrome)


Dermatopathology Quiz Cases


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 and 2 questions:Cornoid Lamella


Pathology Photo of the Day - "On a WHIM"


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


 

Histology of the Normal Skin

Glossary


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


Granular Parakeratosis


Lichen planus-like lesions


Lichen Nitidus


Pemphigoid Gestationis


Bullous Pemphigoid


Dermatitis Herpetiformis


Hailey-Hailey Disease 


Granulomatous Reaction Pattern of the Skin

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


Blastomycosis-like pyoderma


Foreign body granuloma


Rosacea


Interstitial Granulomatous Dermatitis


Interstitial Granulomatous Drug Reaction


Pathology of Discoid Lupus  Erythematosus


Pathology of Chilblains (Perniosis) and Equestrian Perniosis


Erythema Nodosum


Folliculitis


Impetigo


Furuncle (Boil)


Carbuncle


Toxic Shock Syndrome


Allergic Granulomatosis (Churg-Strauss Syndrome)


Erythema Elevatum Diutinum


Median Raphe Cyst


Cutaneous Ciliated Cyst


Infective Panniculitis


Pancreatic Panniculitis


Drug related cutaneous lesions


Cutaneous lesion in graft-
versus host disease


Cutaneous lesions after exposure to Radiation


Digital Mucous (Myxoid) Cyst


Superficial Acral Fibromyxoma


Pathology of Merkel Cell Carcinoma


Keloid of the Ear


Chondrodermatitis Nodularis Chronica Helicis


Skin Tumours


Skin Adnexal (Appendage) Tumours


Benign Sweat Gland Tumours


Apocrine/Eccrine Hidrocystoma


Hamartomas


Chondroid syringoma


Syringoma


Syringocystadenoma Papilliferum   


Hidradenoma Papilliferum 


Nipple Adenoma


Cylindroma


Spiradenoma


Poroma 


Hidradenoma


Papillary Eccrine Adenoma


Apocrine Adenoma


Syringofibroadenoma


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


Porocarcinoma


Digital papillary adenocarcinoma


Hidradenocarcinoma


Apocrine adenocarcinoma


Eccrine ductal carcinoma


Spiradenocarcinoma


Malignant cylindroma


Clear cell carcinoma


Tumours of the Hair Follicle


Trichoepithelioma


Desmoplastic trichoepithelioma


Trichofolliculoma


Trichoblastoma


Cutaneous lymphadenoma


Basaloid Follicular Hamartoma


Trichoadenoma


Dilated Pore of Winer


Pilar Sheath Acanthoma


Tumour of the Follicular Infundibulum


Trichilemmoma


Desmoplastic Trichilemmoma


Trichilemmal Carcinoma 


Proliferating Trichilemmal Tumour


Pilomatrixoma


Pilomatrix Carcinoma


Sebaceous tumours


Fordyce's Spots


Steatocystoma


Nevus Sebaceous


Folliculosebaceous Cystic Hamartoma


Sebaceous Hyperplasia


Sebaceoma


Sebaceous Adenoma


Sebaceous Carcinoma


Cutaneous Deposits

Calcinosis Cutis


Cutaneous Ossification (Osteoma Cutis)


Cartilaginous Lesions of the Skin


Pretibial Myxedema


Lipoid Proteinosis


Pathology of Colloid Milium


Gout


Silicone granulomas


Pathology of Xanthelasma


Pathology of Verruciform Xanthoma


Pathology Photo of the Day - LEOPARD


Dermatopathology patterns that remind us of something else


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


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


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

Acanthomas - [ Epidermolytic acanthoma; Acantholytic acanthoma; Melanoacanthoma ]


Prurigo Nodularis


Clear cell acanthoma


Large cell acanthoma


Warty Dyskeratoma


Virally Induced Epidermal Lesions (Verruca vulgaris; Palmoplantar wart; Verruca plana)


Epidermodysplasia verruciformis


Condyloma Acuminatum


Molluscum contagiosum


Keratoacanthoma


Bowen's disease


Bowenoid papulosis


Actinic keratosis

               

A systematic approach to diagnose cutaneous infections by dermatopathologists

Cutaneous Infections and Infestations


Histoid Leprosy


1 : Bacterial, Rickettsial and Chlamydial Infections

2 : Spirochetal Infections

3 : Mycoses and algal Infections

4 : Protozoal Infections

5 : Helminth Infections

6 : Viral Infections

  


 

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


 


 

 

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