Histopathology Atlas

SALIVARY GLANDS

• Histology:

  • Submandibular gland

  • Parotid gland

  • Sublingual gland

• Sialadenitis:

  • Chronic sialadenitis

  • Sjogren’s syndrome

  • Mikulicz disease - benign lymphoepithelial lesion

• Benign neoplasms:

  • Warthin Tumor

  • Basal cell adenoma

  • Pleomorphic adenoma

  • Oncocytoma

• Malignant neoplasms:

  • Adenoid cystic carcinoma

  • Adenocarcinoma, NOS

  • Salivary duct carcinoma

  • Acinic cell carcinoma

  • Mucoepidermoid carcinoma

ORAL CAVITY

• Histology:

  • Oral cavity

  • Tongue

  • Tonsil

• Inflammatory:

  • Chronic tonsillitis - Actinomyces

  • Mucocele

• Benign lesions/neoplasms:

  • Ameloblastic fibroma

  • Squamous cell papilloma

  • Fibrous epulis

  • Congenital granular cell tumor

• Malignant neoplasms:

  • Squamous cell carcinoma

  • Ameloblastoma

NASAL CAVITY, SINUSES

• Histology:

  • Nasal cavity

  • Sinuses

• Inflammatory:

  • Chronic rhinosinusitis

  • Inflammatory nasal polyp

• Benign lesions/neoplasms:

  • Sinonasal papilloma

  • Inverted Schneiderian papilloma

  • Antrochoanal polyp

  • Juvenile angiofibroma

• Malignant neoplasms:

  • Nasopharyngeal carcinoma - lymphoepithelioma

  • Olfactory neuroblastoma

LARYNX

• Histology:

  • Larynx

• Inflammatory:

  • Chronic laryngitis

• Benign lesions/neoplasms:

  • Oncocytic cyst

  • Laryngeal papilloma

  • Vocal cord polyp

• Premalignant lesions:

  • Dysplasia

• Malignant neoplasms:

  • Squamous cell carcinoma

    • Basaloid SCC

  • Chondrosarcoma

  • Spindle cell carcinoma - sarcomatoid carcinoma

EYE

• Histology:

  • Eye

• Benign lesions/neoplasms:

  • Pterygium

  • Steatocystoma simplex

  • Conjunctival nevus

• Malignant neoplasms:

  • Malignant melanoma

  • Retinoblastoma

EAR

• Histology:

  • Ear

• Inflammatory:

  • Inflammatory aural polyp

• Middle ear - benign lesions/neoplasms:

  • Cholesteatoma

  • Neuroendocrine adenoma of the middle ear

• Middle ear - malignant neoplasms:

  • Embryonal rhabdomyosarcoma