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Pathology - Sinonasal malignancies
Sinonasal squamous cell cancer
• The most prevalent malignant tumor of the sinonasal tract. • Symptoms of a mass lesion in senior adults. • Common sites include the maxillary sinus, lateral nasal wall, and nasal septum. • Nasal tumors are keratinizing and strongly differentiated, while sinus tumors are non-keratinizing and less differentiated. • Nasal cavity-confirmed tumors have a fair prognosis (80% 5-year survival). The prognosis for sinus tumors is less favorable.
Sini asal Adenocarcinomas
Sinonasal adenocarcinomas are the second most prevalent malignant tumor of the sinonasal tract. • Most salivary-type adenocarcinomas occur in the maxillary sinuses and affect both men and women. Adenoid cystic carcinoma is the most prevalent histological form. Males are more likely to develop intestinal type adenocarcinoma, which typically affects the ethmoid sinus and nasal cavity. Occupational exposure has been linked to a variety of health issues, especially among wood workers. • Non-intestinal adenocarcinomas typically affect the ethmoid sinus and maxillary sinus.
Sinonasal undifferentiated carcinoma
• This rare but aggressive malignancy in the sinonasal tract causes a big mass with bone destruction. • Histology reveals sheets of undifferentiated cells with significant mitotic activity and necrosis. • Prognosis is bad, with only 20% survival rate after 5 years.
Olfactory neuroblastoma
• Rare sinonasal malignancy of the olfactory epithelium. • Symptoms include nasal blockage, anosmia, and headaches. • Occurs at a bimodal age of 10-20 and 50-60 years. • Histology reveals lobules of tightly packed tiny spherical blue cells, which can form pseudorosettes or real rosettes.
Malignant Melanoma
• This unusual sinonasal malignancy causes nasal blockage, discharge, and pain. • Histology reveals malignant melanocytes that can proliferate in a variety of patterns. > The prognosis is generally poor.
Sinonasal squamous cell cancer
• The most prevalent malignant tumor of the sinonasal tract. • Symptoms of a mass lesion in senior adults. • Common sites include the maxillary sinus, lateral nasal wall, and nasal septum. • Nasal tumors are keratinizing and strongly differentiated, while sinus tumors are non-keratinizing and less differentiated. • Nasal cavity-confirmed tumors have a fair prognosis (80% 5-year survival). The prognosis for sinus tumors is less favorable.
Sini asal Adenocarcinomas
Sinonasal adenocarcinomas are the second most prevalent malignant tumor of the sinonasal tract. • Most salivary-type adenocarcinomas occur in the maxillary sinuses and affect both men and women. Adenoid cystic carcinoma is the most prevalent histological form. Males are more likely to develop intestinal type adenocarcinoma, which typically affects the ethmoid sinus and nasal cavity. Occupational exposure has been linked to a variety of health issues, especially among wood workers. • Non-intestinal adenocarcinomas typically affect the ethmoid sinus and maxillary sinus.
Sinonasal undifferentiated carcinoma
• This rare but aggressive malignancy in the sinonasal tract causes a big mass with bone destruction. • Histology reveals sheets of undifferentiated cells with significant mitotic activity and necrosis. • Prognosis is bad, with only 20% survival rate after 5 years.
Olfactory neuroblastoma
• Rare sinonasal malignancy of the olfactory epithelium. • Symptoms include nasal blockage, anosmia, and headaches. • Occurs at a bimodal age of 10-20 and 50-60 years. • Histology reveals lobules of tightly packed tiny spherical blue cells, which can form pseudorosettes or real rosettes.
Malignant Melanoma
• This unusual sinonasal malignancy causes nasal blockage, discharge, and pain. • Histology reveals malignant melanocytes that can proliferate in a variety of patterns. > The prognosis is generally poor.
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