3RD VENTRICLE COLLOID CYST 

Colloid cysts constitute about 3% of primary brain neoplasms and roughly about 1/5th  of intraventricular space occupying lesions. They are mostly located at the foramen of Monro 

They usually present in early middle age  and rarely in the paediatric population

They are mostly found incidentally . Owing to their critical position in the roof of the third ventricle they can on occasion dramatically present with sudden obstructive hydrocephalus and thunderclap headache or collapse and unconsciousness.  

? ODONTOGENIC FIBROMA WITH ISLANDS OF EPITHELIUM AND ORGANISING HEMATOMA

HISTOLOGY SHOWING FASCICLES OF SPINDLE CELLS WITH ISLANDS OF BENIGN LOOKING EPITHELIUM 

OPG SHOWING BICORTICAL EXPANSION AND MULTILOCULATION.

A cystic ameloblastoma needs to be ruled out but appears unlikely owing to the absence of characteristic histology like stellate reticulum cells etc.

THE patient was a middle aged male with Left mandible painless swelling. Bicortical expansion, multilocular lesion on OPG.

RHINOSPORIDIOSIS

TISSUE TAKEN FROM BLEEDING NASAL POLYP IN A YOUNG MALE PATIENT

LOW POWER VIEW

                                                       

HIGH POWER VIEW SHOWING CHITINOUS WALLS AND SHEDDING SPORES

EPIDERMAL INCLUSION / BRANCHIAL CYST. CLINICALLY ? TUBERCULOUS NODE

THE SQUAMOUS CELLS CAN BE SEEN AMIDST THE DENSE INFLAMMATORY INFILTRATE

FUN IN PATHOLOGY

TREE BARKS IN SEMEN.

SOUNDS RIDICULOUS?

I THOUGHT SO TOO. BUT LOOK  WHAT I FOUND IN A ROUTINE SEMEN ANALYSIS SLIDE. YOU CAN SEE FOR YOURSELF!

THE RESEMBLANCE TO THE SECTION THROUGH AN OLD TREE TRUNK IS UNCANNY!