Part C preparation!

Onychomycosis , (etiology: dermatphytoses?)
Tinea corporis

Sprorotrichosis Pathophysiology: Infection with the dimorphic soil fungus S schenckii usually is acquired through cutaneous inoculation. The initial reddish, necrotic, nodular papule of cutaneous sporotrichosis generally appears 1-10 weeks after a penetrating skin injury. The lesion is a suppurating granuloma that consists of histiocytes and giant cells, with neutrophils that accumulate in the center and that are surrounded by lymphocytes and plasma cells.

The fungus spreads from the initial lesion along lymphatic channels, forming the chain of indolent nodular and ulcerating lesions that typifies the lymphocutaneous form of the disease.



Dermatophytoses


Tinea nigra

PSORIASIS


Pathology
Skin biopsy shows acanthosis and parakeratosis, reflecting the increase in skin turnover. The granular layer is often absent. Polymorphonuclear abscesses may be seen in the upper epidermis. The epidermal rete ridges appear elongated and clubbed as they fold down into the dermis. Dermal changes include capillary dilatation surrounded by a mixed neutrophilic and lymphohistiocytic perivascular infiltrate.

Seborrheic keratosis

Halo nevus

squamous cell carcinoma of skin
lichen planus
Melanoma


Ovarian teratoma, mature



Endometriosis


Cerebral Malaria
gametocyte of P.falciparum ?


Cutaneous larva migrans


Brain cysticercosis

Part C preparation !!

Meningioma






Subdural hemorrhage

Hemorrhagic infarct

Part C preparation !!!

Osteosarcoma

OS of the maxilla bone




Osteoclastoma/Giant cell tumor





Cervical tumors

CIN III
Cervical invasive carcinoma
Leiomyoma

Ovarian cyst



Thyroid papillary CA




Breast Pathology
Paget's disease of the breast
ductal carcinoma in situ


LCIS


Invasive carcinoma