Pituitary Tumours

This is a normal anterior pituitary gland histology. Note the bluish colour of the basophils, and pinkish colour of the acidophils. This is a histology slide of the posterior pituitary. The brown-stained cells are cells that secrete Growth Hormones – Somatotropes. The cells are stained for immunochemistry evaluation. _____________________________________________________________________ Pituitary Read more…

Growth Hormones & Growth Factors

Synthesis & Structure of Growth Hormone Synthesized by somatotropes ( a subclass of anterior pituitary cells). It’s a single polypeptide hormone (191 amino acids), with 2 disulphide linkages. GH, prolactin, chorionic somatomammotropin have similar sequence homology, therefore all have growth and lactating effects. Growth Hormone Receptor All receptors are proteins. Read more…

Pituitary Gland

The pituitary gland consists of the anterior and posterior lobe, which are controlled by the hypothalamus to secrete hormones. It is also known as the hypophysis (hypo: below, physis: hypothalamus). The hypothalamus is connected to the pituitary gland via the pituitary stalk (infundibulum). This pituitary gland is very small, roughly Read more…

Haematology FLMs

Lymph node   Section of a portion of the outer cortex of a lymph node showing the capsule, subcapsular sinuses, diffuse lymphoid tissue, and lymphatic nodules H & E stain Medium magnification _____________________________________________________________________________________________  Lymph node: sections Figure A Section of a lymph node showing the cortex and the medulla & Read more…

Respi Lab Session (Sem 3)

Lung: Bronchiectasis Show a resected upper lobe with with widely dilated bronchi. Thickening of the bronchial walls Collapse & fibrosis of the pulmonary parenchyma _____________________________________________________________________________________________ Lung: Acute Pneumonia   Microscopic photograph _____________________________________________________________________________________________ Lung: Pulmonary Embolism Seen in the pulmonary artery to the left lung on cut section is a large Read more…