C69.22

Clinical Causes: T h e e x a c t c a u s e o f m a l i g n a n t n e o p l a s m o f t h e r e t i n a i s n o t f u l l y u n d e r s t o o d . H o w e v e r , s e v e r a l f a c t o r s a r e b e l i e v e d t o i n f l u e n c e i t s d e v e l o p m e n t : - G e n e t i c m u t a t i o n s t h a t a l t e r c e l l g r o w t h - F a m i l y h i s t o r y o f e y e c a n c e r s o r o t h e r c a n c e r s - E x p o s u r e t o i o n i z i n g r a d i a t i o n - C e r t a i n h e r e d i t a r y c o n d i t i o n s , s u c h a s r e t i n o b l a s t o m a ( m o r e c o m m o n i n c h i l d r e n ) - E n v i r o n m e n t a l f a c t o r s , t h o u g h s p e c i f i c l i n k s a r e s t i l l u n d e r r e s e a r c h U n d e r s t a n d i n g t h e s e r i s k f a c t o r s c a n h e l p i n e a r l y d e t e c t i o n a n d m a n a g e m e n t .

Key Symptoms: P a t i e n t s w i t h a m a l i g n a n t n e o p l a s m o f t h e l e f t r e t i n a m i g h t e x p e r i e n c e t h e f o l l o w i n g s y m p t o m s : - S u d d e n o r g r a d u a l l o s s o f v i s i o n i n t h e a f f e c t e d e y e - A p p e a r a n c e o f f l o a t e r s o r f l a s h e s o f l i g h t - A s h a d o w o r c u r t a i n o b s c u r i n g p a r t o f t h e v i s u a l f i e l d - C h a n g e s i n t h e s i z e o r s h a p e o f t h e p u p i l - U n u s u a l a p p e a r a n c e o f t h e r e t i n a d u r i n g e y e e x a m i n a t i o n S i n c e s o m e s y m p t o m s d e v e l o p s l o w l y a n d c a n b e m i s t a k e n f o r l e s s s e r i o u s e y e c o n d i t i o n s , r e g u l a r e y e c h e c k - u p s a r e i m p o r t a n t f o r e a r l y d e t e c t i o n .

Diagnosis Path: Diagnosing a malignant tumor in the retina involves several steps: - Comprehensive eye examination, including visual acuity tests and detailed inspection of the retina - Imaging studies such as ultrasound, MRI, or CT scans to assess the tumor size and extent - Fluorescein angiography to evaluate blood flow in the retinal vessels - Biopsy, which is rarely performed in the eye but may be considered in certain cases to confirm malignancy Early diagnosis is crucial for effective treatment and to minimize the risk of the cancer spreading to other parts of the body.

Treatment Protocols: Treatment options for malignant neoplasm of the left retina depend on the size, location, and extent of the tumor: - **Enucleation**: Surgical removal of the affected eye may be necessary if the tumor is large or causes significant damage. - **Radiation therapy**: Targeted radiation can destroy cancer cells and preserve some vision. - **Chemotherapy**: Used in some cases, especially if there is concern about cancer spread. - **Laser therapy**: Employed to destroy smaller tumors or abnormal blood vessels. - **Plaque brachytherapy**: A delivery of radiation directly to the tumor site using a radioactive plaque. Multidisciplinary management involving ophthalmologists, oncologists, and radiologists is often required to customize the treatment plan for each individual. Early intervention can improve outcomes and help preserve vision and eye function.