SQUAMOUS CELL CARCINOMA

SQUAMOUS CELL CARCINOMA FOOT:

ADENOCARCINOMA:

SQUAMOUS CELL CARCINOMA EAR:

GENERAL: It may arise from any part of the skin and mucus membrane lined by Squamous epithelium, but is more likely to occur on sun-exposed parts in older people.

PRE-DISPOSING CONDITIONS:

Xeroderma pigmentosum
Solar keratosis
Chronic inflammatory conditions (chronic ulcers, draining osteomyelitis)
Old burn scars (Marjolin’s ulcer)
Psoriasis
Chemical burns
HIV Infection
Ionising radiation
Industrial carcinogens (coaltar, oils)
Chewing betel [...]

SQUAMOUS CELL PAPILLOMA SKIN

It is a Benign Epithelial Tumor of skin
GROSSLY:
The skin surface shows a papillary growth on the surface (1) having a pedicle (2). It is elevated above the adjoining normal skin without any invasion and is gray white in colour.

Cysticercosis brain

The sliced surfaces of the cerebral hemispheres of the brain in both the images shows many whitish nodules and cysts about 1 cm in dia (black and white arrows) and containing whitish milky fluid.

ACTINOMYCOSIS OF SKIN

GENERAL:
It is a chronic suppurative disease caused by anaerobic bacteria, ACTINOMYCETES ISRAELII.The organisms are commensals in the Oral cavity, Alimentary tract, and vagina.
The infection is always endogenous in origin and not person-to-person.
TYPES:
depending on the location,it is of 4 types;

CERVICOFACIAL  ACTINOMYCOSIS: (commonest form)infection enters from tonsils, carious teeth, periodontal disease, or trauma.Initially there is Lumpy Jaw [...]

TUBERCULOUS LYMPHADENITIS

GENERAL:
Tuberculosis of lymph node is always secondary  to tuberculosis elsewhere.
GROSSLY:
the lymph nodes are enlarged, capsulated & are matted & adhere together forming a big mass due to periadenitis.
Cut surface shows Yellow, Cheesy, Opaque, & Caseous necrosis

MILIARY TUBERCULOSIS SPLEEN

GENERAL:
Lympho-hematogenous spread  of chronic pulmonary tuberculosis may result in Acute miliary tuberculosis  of SPLEEN
IDENTIFICATION: The spleen is identified by presence of notches and dark tan parenchyma.
GROSSLY:
it is a cut and mount formalin fixed specimen of spleen.
The capsule as well as sectioned surface shows miliary tubercles which are scattered throughout the spleen ,they appear [...]

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