Surgery of Primary Site--Melanoma: How is Surgery of Primary Site coded when a path specimen is labeled as a “staged excision” for a cutaneous melanoma. See Discussion.
Histology--Thyroid: What is the correct histology code for a follicular carcinoma, minimally invasive, oncocytic variant of the thyroid? See Discussion.
Histology--Thyroid: What is the correct histology code for a thyroid resection showing papillary carcinoma, tall cell variant with oncocytic features with 30% of largest tumor (right) is tall cell variant and both foci contain benign multinucleated giant cells? See Discussion.
Solid Tumor Rules/Histology--Thyroid: What is the correct histology code for the following thyroid primary with multiple tumors abstracted as one primary diagnosed prior to 2021? See Discussion.
Solid Tumor Rules/Histology--Thyroid: What is the correct histology code for a papillary carcinoma, encapsulated with columnar cell features? See Discussion.
Histology--Thyroid: What is the correct histology code for a thyroidectomy with final diagnosis of “Right lower lobe: papillary microcarcinoma, conventional type, 0.8 cm. Isthmus: papillary microcarcinoma, follicular variant, 0.2 cm. Left lobe: Papillary carcinoma, conventional, unencapsulated.” See Discussion.
Solid Tumor Rules/Multiple Primaries--Brain and CNS: How many primaries are accessioned, and what M Rule applies, for a 2012 diagnosis of left cerebral transitional meningioma (9537/0) that transforms to an atypical meningioma (9539/1) in 2022? See Discussion.
Tumor Size--Pathologic--Anus: In 2019, the pathology report of an anal canal squamous cell carcinoma stated the tumor size is 2.5 cm from proximal to distal (3.5 cm in circumference). Is the pathologic tumor size tumor size 025 or 035?